Release Label Tools 0.1.0

2026-09-01 13:05:57 +02:00
commit 07de9e3433
64 changed files with 10953 additions and 0 deletions
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 node_modules/
 dist/
 release/*.zip
 release/*.zip.sha256
 coverage/
 playwright-report/
 test-results/
 *.tsbuildinfo
 .DS_Store
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@add-ideas:registry=https://git.add-ideas.de/api/packages/lotobo/npm/
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 # Changelog
 ## 0.1.0 - 2026-09-01
 - Add bounded CSV/JSON data merge, flattening and field mapping.
 - Add secure random/serial fields and three safe SVG label templates.
 - Add common A4/Letter stocks, custom unit-aware grids and calibration.
 - Add local raster assets, ten QR/barcode formats and fitting diagnostics.
 - Add paginated preview, print, SVG, deterministic ZIP and raster PDF exports.
 - Add toolbox shell integration, offline PWA support and reproducible releases.
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 # Contributing
 Please open an issue before a large change. Keep all merge and generation paths
 bounded, local and deterministic except explicitly cryptographic random fields.
 Never introduce remote assets, arbitrary markup injection or silent printer
 assumptions.
 Run `npm run check` and `npm run test:browser` before proposing a change. New
 stock presets need a documented geometry source and must retain the instruction
 to verify physical sheets. Contributions are accepted under GPL-3.0-or-later.
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    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 Also add information on how to contact you by electronic and paper mail.
  If the program does terminal interaction, make it output a short
 notice like this when it starts in an interactive mode:
    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.
 The hypothetical commands `show w' and `show c' should show the appropriate
 parts of the General Public License.  Of course, your program's commands
 might be different; for a GUI interface, you would use an "about box".
  You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU GPL, see
 <https://www.gnu.org/licenses/>.
  The GNU General Public License does not permit incorporating your program
 into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
 <https://www.gnu.org/licenses/why-not-lgpl.html>.
@@ -0,0 +1,4 @@
 # Bundled licence texts
 `npm-runtime-licenses.txt` is generated from the exact runtime dependency tree
 during `npm run release:prepare`. The project licence remains in `../LICENSE`.
@@ -0,0 +1,59 @@
 # Label Tools
 Label Tools is a production-oriented, local-first browser studio for merging
 CSV/JSON records into printable label, badge and asset-tag sheets.
 Version 0.1.0 includes:
 - bounded CSV and JSON parsing with nested JSON field flattening;
 - explicit field mapping plus local serial and cryptographically random values;
 - address-label, name-badge and asset-tag layouts with automatic text fitting;
 - locally embedded PNG, JPEG and WebP assets selected by filename or default;
 - QR Code, Code 128, GS1-128, EAN-13, EAN-8, UPC-A, Code 39, Data Matrix,
  PDF417 and Aztec Code fields through the bundled bwip-js encoder;
 - millimetre, inch and point input with common A4/US Letter stocks and a
  validated custom grid;
 - start-slot selection, X/Y offset and independent scale calibration;
 - optional cut guides and registration marks;
 - paginated print preview and explicit print calibration guidance;
 - vector SVG, deterministic multi-page SVG/report ZIP, and 144 DPI PDF export.
 Data and assets remain in browser memory. There is no telemetry, remote API,
 font download, CDN asset or automatic request.
 ## Run and verify
 ```sh
 npm ci
 npm run dev
 npm run check
 npm run test:browser
 npm run package:release -- --force
 ```
 Node.js 22 or newer and the Chromium/Firefox Playwright browsers are required
 for the complete verification suite.
 ## Print and font boundary
 Label-stock names describe common geometries, not vendor certification. Measure
 the actual sheet, print the registration/cut marks on plain paper, choose
 “actual size” or 100% scale, and disable browser headers/footers before using
 stock. Printer feed and unprintable margins are outside browser control.
 SVG uses one of four system font stacks and does not embed fonts. Results can
 therefore vary by operating system. PDF export intentionally rasterizes each
 generated SVG page at 144 DPI, preserving the preview appearance on the same
 device but not creating an archival or press-quality font-embedded PDF.
 ## Limits
 Merge data is limited to 2 MiB, 2,000 rows, 100 fields and 10,000 characters per
 field. Up to 50 local raster images / 32 MiB total are accepted, with 8 MiB and
 40 megapixels per image. Print/PDF runs are capped at 100 pages; SVG ZIP remains
 available for larger bounded merges.
 ## Licence
 Copyright © 2026 Albrecht Degering. Label Tools is free software licensed under
 the GNU General Public License v3.0 or later. See `LICENSE`.
@@ -0,0 +1,14 @@
 # Security
 Report vulnerabilities privately through the repository owner on the Gitea
 instance. Do not attach confidential merge data to a public issue.
 Label Tools keeps data in browser memory and accepts only bounded CSV/JSON and
 PNG/JPEG/WebP assets. Merge text and SVG attributes are escaped. Generated
 barcode markup comes from a pinned local encoder and is checked for active or
 linked elements. Remote image URLs, user-provided SVG and arbitrary templates
 are not accepted in v0.1.
 Generated labels can contain sensitive or guessable identifiers. Review the
 preview and warnings before export, and do not treat serial/random values as an
 access-control system without an independent security design.
@@ -0,0 +1,12 @@
 # Source identity
 - Project: Label Tools
 - Version: 0.1.0
 - Canonical repository: https://git.add-ideas.de/lotobo/label-tools
 - Licence: GPL-3.0-or-later
 - Toolbox app id: `de.add-ideas.label-tools`
 The release ZIP is produced from `dist/` by `scripts/package-release.mjs`.
 Entries are sorted, permissions and timestamps are normalized, and a SHA-256
 sidecar is written. `package.json`, `src/version.ts`, the source manifest and
 generated `toolbox-app.json` must agree on the version.
@@ -0,0 +1,14 @@
 # Third-party notices
 Label Tools is GPL-3.0-or-later. Runtime dependencies are bundled locally and
 never loaded from a CDN. Their licence texts are copied into the production
 artifact at build time.
 - React and React DOM — MIT
 - add·ideas Toolbox Contract, Shell React and Helpers — GPL-3.0-or-later
 - bwip-js — MIT
 - fflate — MIT
 - pdf-lib and its runtime dependencies — MIT
 Development-only linting, testing, formatting and build tools are listed in
 `package-lock.json`; they are not part of the browser runtime bundle.
@@ -0,0 +1,12 @@
 # Accessibility
 Label Tools uses native labels, inputs, selects, buttons, tables, status
 regions, details and dialogs. All configuration is keyboard reachable, focus
 indicators are visible, and messages are not conveyed by colour alone. The
 layout becomes a single column on smaller screens and follows the toolbox light,
 dark and system themes.
 The SVG sheet preview has an accessible page label; source data and warnings
 also remain available as text. Printed labels may need larger type or a
 different layout for their audience. Please report issues with browser and
 assistive-technology details.
@@ -0,0 +1,17 @@
 # Architecture
 Label Tools separates untrusted input from rendering:
 1. `labels/data.ts` uses toolbox helpers for bounded CSV/JSON parsing and the
   browser cryptographic RNG for optional virtual fields.
 2. `labels/stocks.ts` stores canonical millimetre geometry and validates every
   preset/custom grid before rendering.
 3. `labels/render.ts` maps scalar fields into three fixed layouts, escapes XML,
   embeds validated local raster data, and places reviewed bwip-js output.
 4. `labels/export.ts` exports exact SVG pages, deterministic fflate ZIPs, or
   locally rasterized pdf-lib documents.
 The React workbench retains the last valid data model after parse errors and
 limits interactive preview to the first 12 pages. Complete SVG export remains
 available for all bounded rows. The shared toolbox shell owns theme and portal
 navigation; all app URLs are relative for nested deployment.
@@ -0,0 +1,16 @@
 # Privacy and security model
 Merge records and images stay in browser memory and are only serialized when
 the user explicitly exports. The application performs no telemetry, upload,
 remote font loading or network lookup. Barcode payload URLs are encoded as data
 inside the symbol; they are never requested.
 CSV/JSON structure, field lengths, record counts, image bytes/pixels, grid
 dimensions, calibration and output pages are bounded. Object URLs are revoked.
 User strings are normalized for label display and XML-escaped. Only built-in
 templates are supported, and only locally decoded PNG/JPEG/WebP is embedded.
 Printing crosses a physical boundary the browser cannot verify: installed font
 metrics, device drivers, page scaling, feed skew and stock tolerances. Use the
 calibration controls and test on plain paper. PDF is a 144 DPI raster export and
 does not embed or preserve font semantics.
@@ -0,0 +1,37 @@
 import js from "@eslint/js";
 import globals from "globals";
 import reactHooks from "eslint-plugin-react-hooks";
 import reactRefresh from "eslint-plugin-react-refresh";
 import tseslint from "typescript-eslint";
 export default tseslint.config(
  {
    ignores: [
      "dist",
      "release",
      "coverage",
      "test-results",
      "playwright-report",
    ],
  },
  {
    extends: [js.configs.recommended, ...tseslint.configs.recommended],
    files: ["**/*.{ts,tsx}"],
    languageOptions: {
      ecmaVersion: 2023,
      globals: { ...globals.browser, ...globals.worker },
    },
    plugins: { "react-hooks": reactHooks, "react-refresh": reactRefresh },
    rules: {
      ...reactHooks.configs.recommended.rules,
      "react-refresh/only-export-components": [
        "warn",
        { allowConstantExport: true },
      ],
    },
  },
  {
    files: ["scripts/**/*.mjs", "playwright.config.ts"],
    languageOptions: { globals: globals.node },
  },
 );
@@ -0,0 +1,16 @@
 <!doctype html>
 <html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="theme-color" content="#172117" />
    <meta name="description" content="Create and print labels locally." />
    <link rel="icon" href="./favicon.svg" type="image/svg+xml" />
    <link rel="manifest" href="./manifest.webmanifest" />
    <title>Label Tools</title>
  </head>
  <body>
    <div id="root"></div>
    <script type="module" src="/src/main.tsx"></script>
  </body>
 </html>
@@ -0,0 +1,74 @@
 {
  "name": "label-tools",
  "version": "0.1.0",
  "description": "Merge local data into printable labels and badges in the browser.",
  "license": "GPL-3.0-or-later",
  "author": "Albrecht Degering",
  "repository": {
    "type": "git",
    "url": "git+https://git.add-ideas.de/lotobo/label-tools.git"
  },
  "homepage": "https://git.add-ideas.de/lotobo/label-tools",
  "bugs": {
    "url": "https://git.add-ideas.de/lotobo/label-tools/issues"
  },
  "private": true,
  "type": "module",
  "engines": {
    "node": ">=22"
  },
  "scripts": {
    "predev": "npm run manifest:generate",
    "dev": "vite",
    "prebuild": "npm run release:prepare && npm run manifest:generate",
    "build": "tsc -b && vite build",
    "preview": "vite preview",
    "typecheck": "tsc -b --pretty false",
    "lint": "eslint . --max-warnings=0",
    "format": "prettier --write .",
    "format:check": "prettier --check .",
    "test": "vitest run",
    "test:watch": "vitest",
    "test:browser": "playwright test",
    "manifest:generate": "node scripts/generate-toolbox-manifest.mjs",
    "manifest:check": "node scripts/generate-toolbox-manifest.mjs --check",
    "release:prepare": "node scripts/prepare-release-files.mjs",
    "toolbox:check": "toolbox-check dist",
    "package:release": "node scripts/package-release.mjs",
    "check": "npm run manifest:check && npm run typecheck && npm run lint && npm run format:check && npm run test && npm run build && npm run toolbox:check",
    "release:artifact": "npm run check && npm run test:browser && npm run package:release -- --force"
  },
  "dependencies": {
    "@add-ideas/toolbox-contract": "0.2.3",
    "@add-ideas/toolbox-helpers": "0.1.0",
    "@add-ideas/toolbox-shell-react": "0.2.3",
    "bwip-js": "4.11.4",
    "fflate": "0.8.3",
    "pdf-lib": "1.17.1",
    "react": "19.2.8",
    "react-dom": "19.2.8"
  },
  "devDependencies": {
    "@add-ideas/toolbox-testkit": "0.2.3",
    "@eslint/js": "10.0.1",
    "@playwright/test": "1.62.1",
    "@testing-library/jest-dom": "6.9.1",
    "@testing-library/react": "16.3.2",
    "@testing-library/user-event": "14.6.1",
    "@types/node": "25.9.5",
    "@types/react": "19.2.17",
    "@types/react-dom": "19.2.5",
    "@vitejs/plugin-react": "6.0.3",
    "eslint": "10.7.0",
    "eslint-plugin-react-hooks": "7.1.1",
    "eslint-plugin-react-refresh": "0.5.2",
    "globals": "17.7.0",
    "jsdom": "29.1.1",
    "prettier": "3.9.5",
    "typescript": "6.0.3",
    "typescript-eslint": "8.64.0",
    "vite": "8.2.2",
    "vitest": "4.1.11"
  },
  "packageManager": "npm@11.17.0"
 }
@@ -0,0 +1,21 @@
 import { defineConfig, devices } from "@playwright/test";
 export default defineConfig({
  testDir: "./tests/browser",
  fullyParallel: false,
  workers: 1,
  timeout: 120_000,
  expect: { timeout: 10_000 },
  reporter: [["list"]],
  use: { baseURL: "http://127.0.0.1:4202", trace: "retain-on-failure" },
  webServer: {
    command: "npm run build && node scripts/serve-test.mjs",
    url: "http://127.0.0.1:4202",
    reuseExistingServer: !process.env.CI,
    timeout: 180_000,
  },
  projects: [
    { name: "chromium", use: { ...devices["Desktop Chrome"] } },
    { name: "firefox", use: { ...devices["Desktop Firefox"] } },
  ],
 });
@@ -0,0 +1,10 @@
 # Changelog
 ## 0.1.0 - 2026-09-01
 - Add bounded CSV/JSON data merge, flattening and field mapping.
 - Add secure random/serial fields and three safe SVG label templates.
 - Add common A4/Letter stocks, custom unit-aware grids and calibration.
 - Add local raster assets, ten QR/barcode formats and fitting diagnostics.
 - Add paginated preview, print, SVG, deterministic ZIP and raster PDF exports.
 - Add toolbox shell integration, offline PWA support and reproducible releases.
@@ -0,0 +1,10 @@
 # Contributing
 Please open an issue before a large change. Keep all merge and generation paths
 bounded, local and deterministic except explicitly cryptographic random fields.
 Never introduce remote assets, arbitrary markup injection or silent printer
 assumptions.
 Run `npm run check` and `npm run test:browser` before proposing a change. New
 stock presets need a documented geometry source and must retain the instruction
 to verify physical sheets. Contributions are accepted under GPL-3.0-or-later.
@@ -0,0 +1,674 @@
                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007
 Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.
                            Preamble
  The GNU General Public License is a free, copyleft license for
 software and other kinds of works.
  The licenses for most software and other practical works are designed
 to take away your freedom to share and change the works.  By contrast,
 the GNU General Public License is intended to guarantee your freedom to
 share and change all versions of a program--to make sure it remains free
 software for all its users.  We, the Free Software Foundation, use the
 GNU General Public License for most of our software; it applies also to
 any other work released this way by its authors.  You can apply it to
 your programs, too.
  When we speak of free software, we are referring to freedom, not
 price.  Our General Public Licenses are designed to make sure that you
 have the freedom to distribute copies of free software (and charge for
 them if you wish), that you receive source code or can get it if you
 want it, that you can change the software or use pieces of it in new
 free programs, and that you know you can do these things.
  To protect your rights, we need to prevent others from denying you
 these rights or asking you to surrender the rights.  Therefore, you have
 certain responsibilities if you distribute copies of the software, or if
 you modify it: responsibilities to respect the freedom of others.
  For example, if you distribute copies of such a program, whether
 gratis or for a fee, you must pass on to the recipients the same
 freedoms that you received.  You must make sure that they, too, receive
 or can get the source code.  And you must show them these terms so they
 know their rights.
  Developers that use the GNU GPL protect your rights with two steps:
 (1) assert copyright on the software, and (2) offer you this License
 giving you legal permission to copy, distribute and/or modify it.
  For the developers' and authors' protection, the GPL clearly explains
 that there is no warranty for this free software.  For both users' and
 authors' sake, the GPL requires that modified versions be marked as
 changed, so that their problems will not be attributed erroneously to
 authors of previous versions.
  Some devices are designed to deny users access to install or run
 modified versions of the software inside them, although the manufacturer
 can do so.  This is fundamentally incompatible with the aim of
 protecting users' freedom to change the software.  The systematic
 pattern of such abuse occurs in the area of products for individuals to
 use, which is precisely where it is most unacceptable.  Therefore, we
 have designed this version of the GPL to prohibit the practice for those
 products.  If such problems arise substantially in other domains, we
 stand ready to extend this provision to those domains in future versions
 of the GPL, as needed to protect the freedom of users.
  Finally, every program is threatened constantly by software patents.
 States should not allow patents to restrict development and use of
 software on general-purpose computers, but in those that do, we wish to
 avoid the special danger that patents applied to a free program could
 make it effectively proprietary.  To prevent this, the GPL assures that
 patents cannot be used to render the program non-free.
  The precise terms and conditions for copying, distribution and
 modification follow.
                       TERMS AND CONDITIONS
  0. Definitions.
  "This License" refers to version 3 of the GNU General Public License.
  "Copyright" also means copyright-like laws that apply to other kinds of
 works, such as semiconductor masks.
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 License.  Each licensee is addressed as "you".  "Licensees" and
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 of the particular user or of the way in which the particular user
 actually uses, or expects or is expected to use, the product.  A product
 is a consumer product regardless of whether the product has substantial
 commercial, industrial or non-consumer uses, unless such uses represent
 the only significant mode of use of the product.
  "Installation Information" for a User Product means any methods,
 procedures, authorization keys, or other information required to install
 and execute modified versions of a covered work in that User Product from
 a modified version of its Corresponding Source.  The information must
 suffice to ensure that the continued functioning of the modified object
 code is in no case prevented or interfered with solely because
 modification has been made.
  If you convey an object code work under this section in, or with, or
 specifically for use in, a User Product, and the conveying occurs as
 part of a transaction in which the right of possession and use of the
 User Product is transferred to the recipient in perpetuity or for a
 fixed term (regardless of how the transaction is characterized), the
 Corresponding Source conveyed under this section must be accompanied
 by the Installation Information.  But this requirement does not apply
 if neither you nor any third party retains the ability to install
 modified object code on the User Product (for example, the work has
 been installed in ROM).
  The requirement to provide Installation Information does not include a
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 the User Product in which it has been modified or installed.  Access to a
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  Corresponding Source conveyed, and Installation Information provided,
 in accord with this section must be in a format that is publicly
 documented (and with an implementation available to the public in
 source code form), and must require no special password or key for
 unpacking, reading or copying.
  7. Additional Terms.
  "Additional permissions" are terms that supplement the terms of this
 License by making exceptions from one or more of its conditions.
 Additional permissions that are applicable to the entire Program shall
 be treated as though they were included in this License, to the extent
 that they are valid under applicable law.  If additional permissions
 apply only to part of the Program, that part may be used separately
 under those permissions, but the entire Program remains governed by
 this License without regard to the additional permissions.
  When you convey a copy of a covered work, you may at your option
 remove any additional permissions from that copy, or from any part of
 it.  (Additional permissions may be written to require their own
 removal in certain cases when you modify the work.)  You may place
 additional permissions on material, added by you to a covered work,
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  Notwithstanding any other provision of this License, for material you
 add to a covered work, you may (if authorized by the copyright holders of
 that material) supplement the terms of this License with terms:
    a) Disclaiming warranty or limiting liability differently from the
    terms of sections 15 and 16 of this License; or
    b) Requiring preservation of specified reasonable legal notices or
    author attributions in that material or in the Appropriate Legal
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    c) Prohibiting misrepresentation of the origin of that material, or
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    f) Requiring indemnification of licensors and authors of that
    material by anyone who conveys the material (or modified versions of
    it) with contractual assumptions of liability to the recipient, for
    any liability that these contractual assumptions directly impose on
    those licensors and authors.
  All other non-permissive additional terms are considered "further
 restrictions" within the meaning of section 10.  If the Program as you
 received it, or any part of it, contains a notice stating that it is
 governed by this License along with a term that is a further
 restriction, you may remove that term.  If a license document contains
 a further restriction but permits relicensing or conveying under this
 License, you may add to a covered work material governed by the terms
 of that license document, provided that the further restriction does
 not survive such relicensing or conveying.
  If you add terms to a covered work in accord with this section, you
 must place, in the relevant source files, a statement of the
 additional terms that apply to those files, or a notice indicating
 where to find the applicable terms.
  Additional terms, permissive or non-permissive, may be stated in the
 form of a separately written license, or stated as exceptions;
 the above requirements apply either way.
  8. Termination.
  You may not propagate or modify a covered work except as expressly
 provided under this License.  Any attempt otherwise to propagate or
 modify it is void, and will automatically terminate your rights under
 this License (including any patent licenses granted under the third
 paragraph of section 11).
  However, if you cease all violation of this License, then your
 license from a particular copyright holder is reinstated (a)
 provisionally, unless and until the copyright holder explicitly and
 finally terminates your license, and (b) permanently, if the copyright
 holder fails to notify you of the violation by some reasonable means
 prior to 60 days after the cessation.
  Moreover, your license from a particular copyright holder is
 reinstated permanently if the copyright holder notifies you of the
 violation by some reasonable means, this is the first time you have
 received notice of violation of this License (for any work) from that
 copyright holder, and you cure the violation prior to 30 days after
 your receipt of the notice.
  Termination of your rights under this section does not terminate the
 licenses of parties who have received copies or rights from you under
 this License.  If your rights have been terminated and not permanently
 reinstated, you do not qualify to receive new licenses for the same
 material under section 10.
  9. Acceptance Not Required for Having Copies.
  You are not required to accept this License in order to receive or
 run a copy of the Program.  Ancillary propagation of a covered work
 occurring solely as a consequence of using peer-to-peer transmission
 to receive a copy likewise does not require acceptance.  However,
 nothing other than this License grants you permission to propagate or
 modify any covered work.  These actions infringe copyright if you do
 not accept this License.  Therefore, by modifying or propagating a
 covered work, you indicate your acceptance of this License to do so.
  10. Automatic Licensing of Downstream Recipients.
  Each time you convey a covered work, the recipient automatically
 receives a license from the original licensors, to run, modify and
 propagate that work, subject to this License.  You are not responsible
 for enforcing compliance by third parties with this License.
  An "entity transaction" is a transaction transferring control of an
 organization, or substantially all assets of one, or subdividing an
 organization, or merging organizations.  If propagation of a covered
 work results from an entity transaction, each party to that
 transaction who receives a copy of the work also receives whatever
 licenses to the work the party's predecessor in interest had or could
 give under the previous paragraph, plus a right to possession of the
 Corresponding Source of the work from the predecessor in interest, if
 the predecessor has it or can get it with reasonable efforts.
  You may not impose any further restrictions on the exercise of the
 rights granted or affirmed under this License.  For example, you may
 not impose a license fee, royalty, or other charge for exercise of
 rights granted under this License, and you may not initiate litigation
 (including a cross-claim or counterclaim in a lawsuit) alleging that
 any patent claim is infringed by making, using, selling, offering for
 sale, or importing the Program or any portion of it.
  11. Patents.
  A "contributor" is a copyright holder who authorizes use under this
 License of the Program or a work on which the Program is based.  The
 work thus licensed is called the contributor's "contributor version".
  A contributor's "essential patent claims" are all patent claims
 owned or controlled by the contributor, whether already acquired or
 hereafter acquired, that would be infringed by some manner, permitted
 by this License, of making, using, or selling its contributor version,
 but do not include claims that would be infringed only as a
 consequence of further modification of the contributor version.  For
 purposes of this definition, "control" includes the right to grant
 patent sublicenses in a manner consistent with the requirements of
 this License.
  Each contributor grants you a non-exclusive, worldwide, royalty-free
 patent license under the contributor's essential patent claims, to
 make, use, sell, offer for sale, import and otherwise run, modify and
 propagate the contents of its contributor version.
  In the following three paragraphs, a "patent license" is any express
 agreement or commitment, however denominated, not to enforce a patent
 (such as an express permission to practice a patent or covenant not to
 sue for patent infringement).  To "grant" such a patent license to a
 party means to make such an agreement or commitment not to enforce a
 patent against the party.
  If you convey a covered work, knowingly relying on a patent license,
 and the Corresponding Source of the work is not available for anyone
 to copy, free of charge and under the terms of this License, through a
 publicly available network server or other readily accessible means,
 then you must either (1) cause the Corresponding Source to be so
 available, or (2) arrange to deprive yourself of the benefit of the
 patent license for this particular work, or (3) arrange, in a manner
 consistent with the requirements of this License, to extend the patent
 license to downstream recipients.  "Knowingly relying" means you have
 actual knowledge that, but for the patent license, your conveying the
 covered work in a country, or your recipient's use of the covered work
 in a country, would infringe one or more identifiable patents in that
 country that you have reason to believe are valid.
  If, pursuant to or in connection with a single transaction or
 arrangement, you convey, or propagate by procuring conveyance of, a
 covered work, and grant a patent license to some of the parties
 receiving the covered work authorizing them to use, propagate, modify
 or convey a specific copy of the covered work, then the patent license
 you grant is automatically extended to all recipients of the covered
 work and works based on it.
  A patent license is "discriminatory" if it does not include within
 the scope of its coverage, prohibits the exercise of, or is
 conditioned on the non-exercise of one or more of the rights that are
 specifically granted under this License.  You may not convey a covered
 work if you are a party to an arrangement with a third party that is
 in the business of distributing software, under which you make payment
 to the third party based on the extent of your activity of conveying
 the work, and under which the third party grants, to any of the
 parties who would receive the covered work from you, a discriminatory
 patent license (a) in connection with copies of the covered work
 conveyed by you (or copies made from those copies), or (b) primarily
 for and in connection with specific products or compilations that
 contain the covered work, unless you entered into that arrangement,
 or that patent license was granted, prior to 28 March 2007.
  Nothing in this License shall be construed as excluding or limiting
 any implied license or other defenses to infringement that may
 otherwise be available to you under applicable patent law.
  12. No Surrender of Others' Freedom.
  If conditions are imposed on you (whether by court order, agreement or
 otherwise) that contradict the conditions of this License, they do not
 excuse you from the conditions of this License.  If you cannot convey a
 covered work so as to satisfy simultaneously your obligations under this
 License and any other pertinent obligations, then as a consequence you may
 not convey it at all.  For example, if you agree to terms that obligate you
 to collect a royalty for further conveying from those to whom you convey
 the Program, the only way you could satisfy both those terms and this
 License would be to refrain entirely from conveying the Program.
  13. Use with the GNU Affero General Public License.
  Notwithstanding any other provision of this License, you have
 permission to link or combine any covered work with a work licensed
 under version 3 of the GNU Affero General Public License into a single
 combined work, and to convey the resulting work.  The terms of this
 License will continue to apply to the part which is the covered work,
 but the special requirements of the GNU Affero General Public License,
 section 13, concerning interaction through a network will apply to the
 combination as such.
  14. Revised Versions of this License.
  The Free Software Foundation may publish revised and/or new versions of
 the GNU General Public License from time to time.  Such new versions will
 be similar in spirit to the present version, but may differ in detail to
 address new problems or concerns.
  Each version is given a distinguishing version number.  If the
 Program specifies that a certain numbered version of the GNU General
 Public License "or any later version" applies to it, you have the
 option of following the terms and conditions either of that numbered
 version or of any later version published by the Free Software
 Foundation.  If the Program does not specify a version number of the
 GNU General Public License, you may choose any version ever published
 by the Free Software Foundation.
  If the Program specifies that a proxy can decide which future
 versions of the GNU General Public License can be used, that proxy's
 public statement of acceptance of a version permanently authorizes you
 to choose that version for the Program.
  Later license versions may give you additional or different
 permissions.  However, no additional obligations are imposed on any
 author or copyright holder as a result of your choosing to follow a
 later version.
  15. Disclaimer of Warranty.
  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
 APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
 IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
 ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
  16. Limitation of Liability.
  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
 THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
 SUCH DAMAGES.
  17. Interpretation of Sections 15 and 16.
  If the disclaimer of warranty and limitation of liability provided
 above cannot be given local legal effect according to their terms,
 reviewing courts shall apply local law that most closely approximates
 an absolute waiver of all civil liability in connection with the
 Program, unless a warranty or assumption of liability accompanies a
 copy of the Program in return for a fee.
                     END OF TERMS AND CONDITIONS
            How to Apply These Terms to Your New Programs
  If you develop a new program, and you want it to be of the greatest
 possible use to the public, the best way to achieve this is to make it
 free software which everyone can redistribute and change under these terms.
  To do so, attach the following notices to the program.  It is safest
 to attach them to the start of each source file to most effectively
 state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 Also add information on how to contact you by electronic and paper mail.
  If the program does terminal interaction, make it output a short
 notice like this when it starts in an interactive mode:
    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.
 The hypothetical commands `show w' and `show c' should show the appropriate
 parts of the General Public License.  Of course, your program's commands
 might be different; for a GUI interface, you would use an "about box".
  You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU GPL, see
 <https://www.gnu.org/licenses/>.
  The GNU General Public License does not permit incorporating your program
 into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
 <https://www.gnu.org/licenses/why-not-lgpl.html>.
@@ -0,0 +1,4 @@
 # Bundled licence texts
 `npm-runtime-licenses.txt` is generated from the exact runtime dependency tree
 during `npm run release:prepare`. The project licence remains in `../LICENSE`.
@@ -0,0 +1,59 @@
 # Label Tools
 Label Tools is a production-oriented, local-first browser studio for merging
 CSV/JSON records into printable label, badge and asset-tag sheets.
 Version 0.1.0 includes:
 - bounded CSV and JSON parsing with nested JSON field flattening;
 - explicit field mapping plus local serial and cryptographically random values;
 - address-label, name-badge and asset-tag layouts with automatic text fitting;
 - locally embedded PNG, JPEG and WebP assets selected by filename or default;
 - QR Code, Code 128, GS1-128, EAN-13, EAN-8, UPC-A, Code 39, Data Matrix,
  PDF417 and Aztec Code fields through the bundled bwip-js encoder;
 - millimetre, inch and point input with common A4/US Letter stocks and a
  validated custom grid;
 - start-slot selection, X/Y offset and independent scale calibration;
 - optional cut guides and registration marks;
 - paginated print preview and explicit print calibration guidance;
 - vector SVG, deterministic multi-page SVG/report ZIP, and 144 DPI PDF export.
 Data and assets remain in browser memory. There is no telemetry, remote API,
 font download, CDN asset or automatic request.
 ## Run and verify
 ```sh
 npm ci
 npm run dev
 npm run check
 npm run test:browser
 npm run package:release -- --force
 ```
 Node.js 22 or newer and the Chromium/Firefox Playwright browsers are required
 for the complete verification suite.
 ## Print and font boundary
 Label-stock names describe common geometries, not vendor certification. Measure
 the actual sheet, print the registration/cut marks on plain paper, choose
 “actual size” or 100% scale, and disable browser headers/footers before using
 stock. Printer feed and unprintable margins are outside browser control.
 SVG uses one of four system font stacks and does not embed fonts. Results can
 therefore vary by operating system. PDF export intentionally rasterizes each
 generated SVG page at 144 DPI, preserving the preview appearance on the same
 device but not creating an archival or press-quality font-embedded PDF.
 ## Limits
 Merge data is limited to 2 MiB, 2,000 rows, 100 fields and 10,000 characters per
 field. Up to 50 local raster images / 32 MiB total are accepted, with 8 MiB and
 40 megapixels per image. Print/PDF runs are capped at 100 pages; SVG ZIP remains
 available for larger bounded merges.
 ## Licence
 Copyright © 2026 Albrecht Degering. Label Tools is free software licensed under
 the GNU General Public License v3.0 or later. See `LICENSE`.
@@ -0,0 +1,14 @@
 # Security
 Report vulnerabilities privately through the repository owner on the Gitea
 instance. Do not attach confidential merge data to a public issue.
 Label Tools keeps data in browser memory and accepts only bounded CSV/JSON and
 PNG/JPEG/WebP assets. Merge text and SVG attributes are escaped. Generated
 barcode markup comes from a pinned local encoder and is checked for active or
 linked elements. Remote image URLs, user-provided SVG and arbitrary templates
 are not accepted in v0.1.
 Generated labels can contain sensitive or guessable identifiers. Review the
 preview and warnings before export, and do not treat serial/random values as an
 access-control system without an independent security design.
@@ -0,0 +1,12 @@
 # Source identity
 - Project: Label Tools
 - Version: 0.1.0
 - Canonical repository: https://git.add-ideas.de/lotobo/label-tools
 - Licence: GPL-3.0-or-later
 - Toolbox app id: `de.add-ideas.label-tools`
 The release ZIP is produced from `dist/` by `scripts/package-release.mjs`.
 Entries are sorted, permissions and timestamps are normalized, and a SHA-256
 sidecar is written. `package.json`, `src/version.ts`, the source manifest and
 generated `toolbox-app.json` must agree on the version.
@@ -0,0 +1,14 @@
 # Third-party notices
 Label Tools is GPL-3.0-or-later. Runtime dependencies are bundled locally and
 never loaded from a CDN. Their licence texts are copied into the production
 artifact at build time.
 - React and React DOM — MIT
 - add·ideas Toolbox Contract, Shell React and Helpers — GPL-3.0-or-later
 - bwip-js — MIT
 - fflate — MIT
 - pdf-lib and its runtime dependencies — MIT
 Development-only linting, testing, formatting and build tools are listed in
 `package-lock.json`; they are not part of the browser runtime bundle.
@@ -0,0 +1,12 @@
 # Accessibility
 Label Tools uses native labels, inputs, selects, buttons, tables, status
 regions, details and dialogs. All configuration is keyboard reachable, focus
 indicators are visible, and messages are not conveyed by colour alone. The
 layout becomes a single column on smaller screens and follows the toolbox light,
 dark and system themes.
 The SVG sheet preview has an accessible page label; source data and warnings
 also remain available as text. Printed labels may need larger type or a
 different layout for their audience. Please report issues with browser and
 assistive-technology details.
@@ -0,0 +1,17 @@
 # Architecture
 Label Tools separates untrusted input from rendering:
 1. `labels/data.ts` uses toolbox helpers for bounded CSV/JSON parsing and the
   browser cryptographic RNG for optional virtual fields.
 2. `labels/stocks.ts` stores canonical millimetre geometry and validates every
   preset/custom grid before rendering.
 3. `labels/render.ts` maps scalar fields into three fixed layouts, escapes XML,
   embeds validated local raster data, and places reviewed bwip-js output.
 4. `labels/export.ts` exports exact SVG pages, deterministic fflate ZIPs, or
   locally rasterized pdf-lib documents.
 The React workbench retains the last valid data model after parse errors and
 limits interactive preview to the first 12 pages. Complete SVG export remains
 available for all bounded rows. The shared toolbox shell owns theme and portal
 navigation; all app URLs are relative for nested deployment.
@@ -0,0 +1,16 @@
 # Privacy and security model
 Merge records and images stay in browser memory and are only serialized when
 the user explicitly exports. The application performs no telemetry, upload,
 remote font loading or network lookup. Barcode payload URLs are encoded as data
 inside the symbol; they are never requested.
 CSV/JSON structure, field lengths, record counts, image bytes/pixels, grid
 dimensions, calibration and output pages are bounded. Object URLs are revoked.
 User strings are normalized for label display and XML-escaped. Only built-in
 templates are supported, and only locally decoded PNG/JPEG/WebP is embedded.
 Printing crosses a physical boundary the browser cannot verify: installed font
 metrics, device drivers, page scaling, feed skew and stock tolerances. Use the
 calibration controls and test on plain paper. PDF is a 144 DPI raster export and
 does not embed or preserve font semantics.
@@ -0,0 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64" role="img" aria-label="Label Tools">
  <rect width="64" height="64" rx="14" fill="#172117"/>
  <path d="M11 16h32l10 10v22H11z" fill="#bbf7d0" stroke="#fff" stroke-width="2" stroke-linejoin="round"/>
  <circle cx="43" cy="26" r="4" fill="#172117"/>
  <path d="M18 31h18M18 38h27" stroke="#172117" stroke-width="3" stroke-linecap="round"/>
 </svg>
@@ -0,0 +1,18 @@
 {
  "name": "Label Tools",
  "short_name": "Labels",
  "description": "Merge and print labels locally.",
  "start_url": "./",
  "scope": "./",
  "display": "standalone",
  "background_color": "#172117",
  "theme_color": "#172117",
  "icons": [
    {
      "src": "./favicon.svg",
      "sizes": "any",
      "type": "image/svg+xml",
      "purpose": "any maskable"
    }
  ]
 }
@@ -0,0 +1,48 @@
 const CACHE = "label-tools-v0.1.0";
 const APP = [
  "./",
  "./index.html",
  "./manifest.webmanifest",
  "./favicon.svg",
  "./toolbox-app.json",
 ];
 self.addEventListener("install", (event) => {
  event.waitUntil(
    caches
      .open(CACHE)
      .then((cache) => cache.addAll(APP))
      .then(() => self.skipWaiting()),
  );
 });
 self.addEventListener("activate", (event) => {
  event.waitUntil(
    caches
      .keys()
      .then((keys) =>
        Promise.all(
          keys.filter((key) => key !== CACHE).map((key) => caches.delete(key)),
        ),
      )
      .then(() => self.clients.claim()),
  );
 });
 self.addEventListener("fetch", (event) => {
  if (
    event.request.method !== "GET" ||
    new URL(event.request.url).origin !== self.location.origin
  )
    return;
  event.respondWith(
    caches.match(event.request).then(
      (hit) =>
        hit ||
        fetch(event.request).then((response) => {
          if (response.ok)
            caches
              .open(CACHE)
              .then((cache) => cache.put(event.request, response.clone()));
          return response;
        }),
    ),
  );
 });
@@ -0,0 +1,41 @@
 {
  "$schema": "https://git.add-ideas.de/lotobo/toolbox-sdk/raw/branch/main/schemas/toolbox-app.v1.schema.json",
  "schemaVersion": 1,
  "id": "de.add-ideas.label-tools",
  "name": "Label Tools",
  "version": "0.1.0",
  "description": "Merge and print labels locally.",
  "entry": "./",
  "icon": "./favicon.svg",
  "categories": ["documents", "graphics", "productivity"],
  "tags": ["labels", "badges", "mail-merge", "barcode", "print", "svg", "pdf"],
  "integration": {
    "contextVersion": 1,
    "launchModes": ["navigate", "new-tab"],
    "embedding": "unsupported"
  },
  "requirements": {
    "secureContext": true,
    "workers": false,
    "indexedDb": false,
    "crossOriginIsolated": false,
    "topLevelContext": false
  },
  "privacy": {
    "processing": "local",
    "fileUploads": true,
    "telemetry": false,
    "label": "Data, images and generated labels stay in this browser."
  },
  "source": {
    "repository": "https://git.add-ideas.de/lotobo/label-tools",
    "license": "GPL-3.0-or-later"
  },
  "actions": [
    {
      "id": "source",
      "label": "Source",
      "url": "https://git.add-ideas.de/lotobo/label-tools"
    }
  ]
 }
@@ -0,0 +1,33 @@
 import { readFile, writeFile } from "node:fs/promises";
 import path from "node:path";
 import { fileURLToPath } from "node:url";
 import { format } from "prettier";
 const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
 const sourcePath = path.join(root, "src/toolbox/manifest.source.json");
 const outputPath = path.join(root, "public/toolbox-app.json");
 const source = JSON.parse(await readFile(sourcePath, "utf8"));
 const pkg = JSON.parse(await readFile(path.join(root, "package.json"), "utf8"));
 const versionSource = await readFile(path.join(root, "src/version.ts"), "utf8");
 const appVersion = /^export const APP_VERSION = "([^"]+)";$/mu.exec(
  versionSource,
 )?.[1];
 const repository = "https://git.add-ideas.de/lotobo/" + pkg.name;
 if (source.version !== pkg.version || appVersion !== pkg.version)
  throw new Error("Version identity drift");
 if (
  source.id !== "de.add-ideas." + pkg.name ||
  source.source?.repository !== repository ||
  source.source?.license !== "GPL-3.0-or-later"
 )
  throw new Error("Manifest source identity is invalid");
 const serialized = await format(JSON.stringify(source), {
  filepath: outputPath,
 });
 if (process.argv.includes("--check")) {
  if ((await readFile(outputPath, "utf8").catch(() => "")) !== serialized)
    throw new Error("public/toolbox-app.json is stale");
  console.log("Toolbox manifest is synchronized");
 } else {
  await writeFile(outputPath, serialized);
  console.log("Generated public/toolbox-app.json");
 }
@@ -0,0 +1,165 @@
 #!/usr/bin/env node
 import { createHash } from "node:crypto";
 import { execFile } from "node:child_process";
 import {
  access,
  chmod,
  copyFile,
  cp,
  lstat,
  mkdir,
  mkdtemp,
  readFile,
  readdir,
  rename,
  rm,
  utimes,
  writeFile,
 } from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 import { promisify } from "node:util";
 import { fileURLToPath } from "node:url";
 const execute = promisify(execFile);
 const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
 const pkg = JSON.parse(await readFile(path.join(root, "package.json"), "utf8"));
 const argument = (name, fallback) => {
  const index = process.argv.indexOf(name);
  return index >= 0 ? process.argv[index + 1] : fallback;
 };
 const output = path.resolve(
  root,
  argument("--output", "release/" + pkg.name + "-" + pkg.version + ".zip"),
 );
 const checksumOutput = output + ".sha256";
 const force = process.argv.includes("--force");
 if (
  path.extname(output).toLowerCase() !== ".zip" ||
  output === root ||
  output === path.parse(output).root
 )
  throw new Error("Unsafe release target");
 const exists = (file) =>
  access(file).then(
    () => true,
    () => false,
  );
 if (!force && ((await exists(output)) || (await exists(checksumOutput))))
  throw new Error("Release output exists");
 const input = path.join(root, "dist");
 for (const name of [
  "index.html",
  "manifest.webmanifest",
  "sw.js",
  "toolbox-app.json",
  "favicon.svg",
  "README.md",
  "CHANGELOG.md",
  "CONTRIBUTING.md",
  "LICENSE",
  "SECURITY.md",
  "SOURCE.md",
  "THIRD_PARTY_NOTICES.md",
  "LICENSES/README.md",
  "LICENSES/npm-runtime-licenses.txt",
  "docs/ACCESSIBILITY.md",
  "docs/ARCHITECTURE.md",
  "docs/PRIVACY-SECURITY.md",
 ]) {
  const details = await lstat(path.join(input, name)).catch(() => null);
  if (!details?.isFile() || details.isSymbolicLink())
    throw new Error("Missing release file: " + name);
 }
 const manifest = JSON.parse(
  await readFile(path.join(input, "toolbox-app.json"), "utf8"),
 );
 const repository = "https://git.add-ideas.de/lotobo/" + pkg.name;
 if (
  manifest.id !== "de.add-ideas." + pkg.name ||
  manifest.version !== pkg.version ||
  manifest.entry !== "./" ||
  manifest.icon !== "./favicon.svg" ||
  manifest.source?.repository !== repository
 )
  throw new Error("Packaged manifest identity is invalid");
 if (
  /\b(?:src|href)=["']\//iu.test(
    await readFile(path.join(input, "index.html"), "utf8"),
  )
 )
  throw new Error("Root-absolute asset reference");
 async function collect(directory, prefix = "") {
  const files = [];
  for (const entry of (await readdir(directory, { withFileTypes: true })).sort(
    (a, b) => (a.name === b.name ? 0 : a.name < b.name ? -1 : 1),
  )) {
    const absolute = path.join(directory, entry.name);
    const relative = prefix ? prefix + "/" + entry.name : entry.name;
    if (entry.isSymbolicLink())
      throw new Error("Symlink in release: " + relative);
    if (entry.isDirectory()) files.push(...(await collect(absolute, relative)));
    else if (entry.isFile()) files.push({ absolute, relative });
    else throw new Error("Unsupported release entry: " + relative);
  }
  return files;
 }
 const sourceFiles = await collect(input);
 for (const file of sourceFiles)
  if (
    file.relative.endsWith(".map") ||
    /(?:^|\/)(?:\.env(?:\.|$)|id_rsa|id_ed25519|.*\.pem$|.*\.key$)/iu.test(
      file.relative,
    ) ||
    file.relative.split("/").includes("..")
  )
    throw new Error("Forbidden release entry: " + file.relative);
 await mkdir(path.dirname(output), { recursive: true });
 const stagingRoot = await mkdtemp(
  path.join(os.tmpdir(), pkg.name + "-release-"),
 );
 const publicationRoot = await mkdtemp(
  path.join(path.dirname(output), "." + pkg.name + "-publish-"),
 );
 const stagedTree = path.join(stagingRoot, "tree");
 const stagedArchive = path.join(stagingRoot, path.basename(output));
 try {
  await cp(input, stagedTree, { recursive: true });
  const timestamp = new Date("1980-01-01T00:00:00.000Z");
  for (const file of await collect(stagedTree)) {
    await chmod(file.absolute, 0o644);
    await utimes(file.absolute, timestamp, timestamp);
  }
  await execute(
    "zip",
    [
      "-X",
      "-q",
      "-9",
      stagedArchive,
      ...sourceFiles.map((file) => file.relative),
    ],
    {
      cwd: stagedTree,
      env: { ...process.env, TZ: "UTC" },
      maxBuffer: 1024 * 1024,
    },
  );
  const archive = await readFile(stagedArchive);
  const digest = createHash("sha256").update(archive).digest("hex");
  const stagedChecksum = stagedArchive + ".sha256";
  await writeFile(stagedChecksum, digest + "  " + path.basename(output) + "\n");
  const publicationArchive = path.join(publicationRoot, path.basename(output));
  const publicationChecksum = publicationArchive + ".sha256";
  await copyFile(stagedArchive, publicationArchive);
  await copyFile(stagedChecksum, publicationChecksum);
  if (force) {
    await rm(output, { force: true });
    await rm(checksumOutput, { force: true });
  }
  await rename(publicationArchive, output);
  await rename(publicationChecksum, checksumOutput);
  console.log("Created " + path.relative(root, output) + "\nSHA-256 " + digest);
 } finally {
  await rm(stagingRoot, { recursive: true, force: true });
  await rm(publicationRoot, { recursive: true, force: true });
 }
@@ -0,0 +1,73 @@
 import { cp, mkdir, readFile, readdir, rm, writeFile } from "node:fs/promises";
 import path from "node:path";
 import { fileURLToPath } from "node:url";
 const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
 const destination = path.join(root, "public");
 for (const name of [
  "LICENSE",
  "README.md",
  "CHANGELOG.md",
  "CONTRIBUTING.md",
  "SECURITY.md",
  "SOURCE.md",
  "THIRD_PARTY_NOTICES.md",
 ]) {
  await readFile(path.join(root, name));
  await cp(path.join(root, name), path.join(destination, name));
 }
 for (const directory of ["LICENSES", "docs"]) {
  const output = path.join(destination, directory);
  await rm(output, { recursive: true, force: true });
  await cp(path.join(root, directory), output, { recursive: true });
 }
 const lock = JSON.parse(
  await readFile(path.join(root, "package-lock.json"), "utf8"),
 );
 const sections = [];
 for (const [location, locked] of Object.entries(lock.packages ?? {}).sort(
  ([a], [b]) => (a === b ? 0 : a < b ? -1 : 1),
 )) {
  if (!location.includes("node_modules/") || locked.dev === true) continue;
  const packageDirectory = path.join(root, location);
  const details = JSON.parse(
    await readFile(path.join(packageDirectory, "package.json"), "utf8"),
  );
  const candidates = (await readdir(packageDirectory))
    .filter((name) => /^(?:licen[cs]e|copying|notice)(?:\.|$)/iu.test(name))
    .sort();
  const texts = [];
  for (const candidate of candidates) {
    try {
      texts.push(
        "--- " +
          candidate +
          " ---\n" +
          (await readFile(path.join(packageDirectory, candidate), "utf8"))
            .replaceAll("\r\n", "\n")
            .replaceAll("\r", "\n")
            .replace(/[ \t]+$/gmu, ""),
      );
    } catch {
      /* directory */
    }
  }
  sections.push(
    "=".repeat(78) +
      "\n" +
      details.name +
      "@" +
      details.version +
      "\nDeclared licence: " +
      (details.license ?? locked.license ?? "See upstream") +
      "\n" +
      "=".repeat(78) +
      "\n" +
      (texts.join("\n\n") || "See upstream package metadata."),
  );
 }
 await mkdir(path.join(destination, "LICENSES"), { recursive: true });
 await writeFile(
  path.join(destination, "LICENSES/npm-runtime-licenses.txt"),
  sections.join("\n\n").trimEnd() + "\n",
 );
 console.log("Prepared release documentation");
@@ -0,0 +1,65 @@
 import { createServer } from "node:http";
 import { readFile, stat } from "node:fs/promises";
 import path from "node:path";
 import { fileURLToPath } from "node:url";
 const root = path.resolve(
  path.dirname(fileURLToPath(import.meta.url)),
  "..",
  "dist",
 );
 const prefix = "/deep/nested/label/";
 const types = new Map([
  [".css", "text/css; charset=utf-8"],
  [".html", "text/html; charset=utf-8"],
  [".js", "text/javascript; charset=utf-8"],
  [".json", "application/json; charset=utf-8"],
  [".webmanifest", "application/manifest+json; charset=utf-8"],
  [".svg", "image/svg+xml"],
  [".md", "text/markdown; charset=utf-8"],
  [".txt", "text/plain; charset=utf-8"],
 ]);
 const headers = {
  "Content-Security-Policy":
    "default-src 'self'; base-uri 'self'; object-src 'none'; frame-ancestors 'none'; form-action 'self'; script-src 'self' 'wasm-unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; media-src 'self' blob:; connect-src 'self'; worker-src 'self' blob:; manifest-src 'self'",
  "Cross-Origin-Opener-Policy": "same-origin",
  "Cross-Origin-Resource-Policy": "same-origin",
  "Permissions-Policy":
    "camera=(), microphone=(), geolocation=(), usb=(), payment=()",
  "Referrer-Policy": "no-referrer",
  "X-Content-Type-Options": "nosniff",
 };
 const server = createServer(async (request, response) => {
  try {
    const url = new URL(request.url ?? "/", "http://127.0.0.1");
    const decoded = decodeURIComponent(url.pathname);
    const relative = decoded.startsWith(prefix)
      ? decoded.slice(prefix.length)
      : decoded.replace(/^\/+/, "");
    const normalized = path.posix.normalize(relative || "index.html");
    if (
      normalized === ".." ||
      normalized.startsWith("../") ||
      path.isAbsolute(normalized)
    )
      return void response.writeHead(400).end("Bad request");
    let file = path.join(root, normalized);
    if ((await stat(file).catch(() => null))?.isDirectory())
      file = path.join(file, "index.html");
    const content = await readFile(file);
    response.writeHead(200, {
      "Content-Type":
        types.get(path.extname(file)) ?? "application/octet-stream",
      "Cache-Control": normalized.startsWith("assets/")
        ? "public, max-age=31536000, immutable"
        : "no-cache",
      ...headers,
    });
    response.end(content);
  } catch {
    response.writeHead(404, { "Content-Type": "text/plain; charset=utf-8" });
    response.end("Not found");
  }
 });
 server.listen(4202, "127.0.0.1", () =>
  console.log("Label Tools test server ready"),
 );
@@ -0,0 +1,29 @@
 import { lazy, Suspense, useState } from "react";
 import { AppShell } from "@add-ideas/toolbox-shell-react";
 import "@add-ideas/toolbox-shell-react/styles.css";
 import "./styles.css";
 import { ErrorBoundary } from "./components/ErrorBoundary";
 import { HelpDialog } from "./components/HelpDialog";
 import { manifest } from "./toolbox/manifest";
 const Workbench = lazy(async () => ({
  default: (await import("./components/Workbench")).Workbench,
 }));
 export function App() {
  const [helpOpen, setHelpOpen] = useState(false);
  return (
    <ErrorBoundary>
      <AppShell
        app={manifest}
        manifestUrl="./toolbox-app.json"
        helpAction={{ onClick: () => setHelpOpen(true) }}
      >
        <Suspense fallback={<p className="loading">Preparing Label Tools…</p>}>
          <Workbench />
        </Suspense>
      </AppShell>
      <HelpDialog open={helpOpen} onClose={() => setHelpOpen(false)} />
    </ErrorBoundary>
  );
 }
@@ -0,0 +1,27 @@
 import { Component, type ErrorInfo, type ReactNode } from "react";
 export class ErrorBoundary extends Component<
  { children: ReactNode },
  { error?: Error }
 > {
  state: { error?: Error } = {};
  static getDerivedStateFromError(error: Error) {
    return { error };
  }
  componentDidCatch(error: Error, info: ErrorInfo) {
    console.error("Application failure", error, info);
  }
  render() {
    if (this.state.error)
      return (
        <main className="fatal">
          <h1>Label Tools could not continue</h1>
          <p>{this.state.error.message}</p>
          <button type="button" onClick={() => location.reload()}>
            Reload
          </button>
        </main>
      );
    return this.props.children;
  }
 }
@@ -0,0 +1,50 @@
 import { useEffect, useRef } from "react";
 export function HelpDialog({
  open,
  onClose,
 }: {
  open: boolean;
  onClose: () => void;
 }) {
  const dialog = useRef<HTMLDialogElement>(null);
  useEffect(() => {
    const node = dialog.current;
    if (!node) return;
    if (open && !node.open) node.showModal();
    if (!open && node.open) node.close();
  }, [open]);
  return (
    <dialog
      ref={dialog}
      className="help-dialog"
      onClose={onClose}
      onCancel={onClose}
      aria-labelledby="help-title"
    >
      <div className="dialog-heading">
        <div>
          <p className="eyebrow">Local-first help</p>
          <h2 id="help-title">About Label Tools</h2>
        </div>
        <button type="button" onClick={onClose} aria-label="Close help">
          ×
        </button>
      </div>
      <p>
        Paste CSV or JSON, map fields into a safe built-in address, badge or
        asset template, then preview and export complete label sheets.
      </p>
      <p>
        QR and common barcodes are generated locally. PNG, JPEG and WebP assets
        are embedded as data; SVG and remote image URLs are deliberately
        excluded.
      </p>
      <p>
        Paper feed, printer scaling and installed system fonts vary. Print a
        calibration sheet on plain paper at 100% / actual size before using
        label stock. PDF export rasterizes at 144 DPI and does not embed fonts.
      </p>
    </dialog>
  );
 }
@@ -0,0 +1,64 @@
 import { toSVG } from "bwip-js/browser";
 import type { BarcodeFormat } from "./types";
 export const BARCODE_FORMATS: readonly [BarcodeFormat, string][] = [
  ["qrcode", "QR Code"],
  ["code128", "Code 128"],
  ["gs1-128", "GS1-128"],
  ["ean13", "EAN-13"],
  ["ean8", "EAN-8"],
  ["upca", "UPC-A"],
  ["code39", "Code 39"],
  ["datamatrix", "Data Matrix"],
  ["pdf417", "PDF417"],
  ["azteccode", "Aztec Code"],
 ];
 const LINEAR = new Set<BarcodeFormat>([
  "code128",
  "gs1-128",
  "ean13",
  "ean8",
  "upca",
  "code39",
 ]);
 export function barcodeFragment(
  format: BarcodeFormat,
  text: string,
  includeText: boolean,
 ) {
  if (!BARCODE_FORMATS.some(([candidate]) => candidate === format))
    throw new Error("Unsupported barcode format.");
  if (!text || text.length > 4_096)
    throw new Error("Barcode payload must contain 1–4,096 characters.");
  const svg = toSVG({
    bcid: format,
    text,
    scale: 2,
    padding: format === "qrcode" ? 8 : 4,
    ...(LINEAR.has(format) ? { height: 12, includetext: includeText } : {}),
    backgroundcolor: "FFFFFF",
    barcolor: "111111",
    textcolor: "111111",
  });
  if (/<(?:script|foreignObject)|\bon\w+\s*=|\b(?:href|src)\s*=/iu.test(svg))
    throw new Error("Generated barcode failed the inert SVG policy.");
  const root = /^<svg\b([^>]*)>([\s\S]*)<\/svg>$/u.exec(svg.trim());
  if (!root) throw new Error("Barcode encoder returned malformed SVG.");
  const viewBox = /\bviewBox="([^"]+)"/u
    .exec(root[1] ?? "")?.[1]
    ?.trim()
    .split(/\s+/u)
    .map(Number);
  if (
    !viewBox ||
    viewBox.length !== 4 ||
    viewBox.some((value) => !Number.isFinite(value))
  )
    throw new Error("Barcode SVG has no valid viewBox.");
  return {
    body: root[2] ?? "",
    viewBox: viewBox as [number, number, number, number],
  };
 }
@@ -0,0 +1,164 @@
 import {
  parseCsv,
  safeJsonParse,
  secureRandomBytes,
  type JsonValue,
 } from "@add-ideas/toolbox-helpers";
 import type { GeneratorOptions, MergeRecord } from "./types";
 export const DATA_LIMITS = Object.freeze({
  maxCharacters: 2 * 1024 * 1024,
  maxRows: 2_000,
  maxFields: 100,
  maxFieldCharacters: 10_000,
 });
 export function parseMergeData(
  source: string,
  format: "auto" | "csv" | "json" = "auto",
 ): MergeRecord[] {
  if (source.length > DATA_LIMITS.maxCharacters)
    throw new Error("Merge data exceeds the 2 MiB input limit.");
  const resolved =
    format === "auto"
      ? source.trimStart().startsWith("[") || source.trimStart().startsWith("{")
        ? "json"
        : "csv"
      : format;
  return resolved === "json"
    ? parseJsonRecords(source)
    : parseCsvRecords(source);
 }
 function parseCsvRecords(source: string): MergeRecord[] {
  const rows = parseCsv(source, {
    maxRows: DATA_LIMITS.maxRows + 1,
    maxColumns: DATA_LIMITS.maxFields,
    maxFieldChars: DATA_LIMITS.maxFieldCharacters,
  });
  if (!rows.length) return [];
  const headers = rows[0]!.map((header, index) =>
    normalizeHeader(header, index),
  );
  if (new Set(headers).size !== headers.length)
    throw new Error("CSV headers must be unique.");
  return rows
    .slice(1)
    .filter((row) => row.some(Boolean))
    .map((row) =>
      Object.fromEntries(
        headers.map((header, index) => [header, row[index] ?? ""]),
      ),
    );
 }
 function parseJsonRecords(source: string): MergeRecord[] {
  const value = safeJsonParse(source, {
    maxTextChars: DATA_LIMITS.maxCharacters,
    maxDepth: 16,
    maxNodes: 250_000,
  });
  const records = Array.isArray(value)
    ? value
    : isObject(value) && Array.isArray(value.records)
      ? value.records
      : [value];
  if (records.length > DATA_LIMITS.maxRows)
    throw new Error("JSON contains more than 2,000 records.");
  return records.map((record, index) => {
    if (!isObject(record))
      throw new Error(`JSON record ${index + 1} must be an object.`);
    const flattened: MergeRecord = {};
    flattenRecord(record, flattened, "", 0);
    if (Object.keys(flattened).length > DATA_LIMITS.maxFields)
      throw new Error(
        `JSON record ${index + 1} has more than 100 flattened fields.`,
      );
    return flattened;
  });
 }
 function flattenRecord(
  value: Record<string, JsonValue>,
  output: MergeRecord,
  prefix: string,
  depth: number,
 ) {
  if (depth > 4)
    throw new Error("JSON record nesting exceeds four merge levels.");
  for (const [key, child] of Object.entries(value)) {
    const path = prefix ? `${prefix}.${key}` : key;
    if (isObject(child)) flattenRecord(child, output, path, depth + 1);
    else {
      const rendered = Array.isArray(child)
        ? child.map((item) => scalar(item)).join(", ")
        : scalar(child);
      if (rendered.length > DATA_LIMITS.maxFieldCharacters)
        throw new Error(`Field ${path} exceeds 10,000 characters.`);
      output[path] = rendered;
    }
  }
 }
 function scalar(value: JsonValue): string {
  if (value === null) return "";
  if (typeof value === "object") return JSON.stringify(value);
  return String(value);
 }
 function normalizeHeader(value: string, index: number): string {
  const normalized = value.replace(/^\uFEFF/u, "").trim();
  return normalized || `column_${index + 1}`;
 }
 function isObject(value: JsonValue): value is Record<string, JsonValue> {
  return Boolean(value && typeof value === "object" && !Array.isArray(value));
 }
 export function augmentRecords(
  input: MergeRecord[],
  options: GeneratorOptions,
  randomProvider: (length: number) => Uint8Array = secureRandomBytes,
 ): MergeRecord[] {
  if (
    !Number.isInteger(options.count) ||
    options.count < 0 ||
    options.count > DATA_LIMITS.maxRows
  )
    throw new Error("Generated row count must be between 0 and 2,000.");
  if (!Number.isSafeInteger(options.serialStart))
    throw new Error("Serial start must be a safe integer.");
  if (
    !Number.isInteger(options.serialPadding) ||
    options.serialPadding < 0 ||
    options.serialPadding > 20
  )
    throw new Error("Serial padding must be between 0 and 20.");
  if (
    !Number.isInteger(options.randomLength) ||
    options.randomLength < 4 ||
    options.randomLength > 64
  )
    throw new Error("Random length must be between 4 and 64.");
  const count = Math.max(input.length, options.count);
  const alphabet = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789";
  return Array.from({ length: count }, (_, index) => {
    const bytes = randomProvider(options.randomLength);
    const random = [...bytes]
      .map((byte) => alphabet[byte % alphabet.length])
      .join("");
    const serialNumber = options.serialStart + index;
    return {
      ...(input[index] ?? {}),
      __row: String(index + 1),
      __serial: `${options.serialPrefix}${String(serialNumber).padStart(options.serialPadding, "0")}`,
      __random: random,
    };
  });
 }
 export function collectFields(records: MergeRecord[]): string[] {
  return [...new Set(records.flatMap((record) => Object.keys(record)))].sort(
    (a, b) => a.localeCompare(b),
  );
 }
@@ -0,0 +1,38 @@
 import {
  sanitizeDownloadFilename,
  stableStringify,
 } from "@add-ideas/toolbox-helpers";
 import { strToU8, zipSync } from "fflate";
 import type { RenderResult } from "./types";
 export function createSvgZip(result: RenderResult): Blob {
  const files: Record<string, Uint8Array> = {};
  result.pages.forEach((svg, index) => {
    files[`label-sheet-${String(index + 1).padStart(3, "0")}.svg`] =
      strToU8(svg);
  });
  files["merge-report.json"] = strToU8(
    stableStringify(
      {
        application: "Label Tools 0.1.0",
        pages: result.totalPages,
        labels: result.totalLabels,
        warnings: result.warnings,
        boundary:
          "System fonts and printer scaling are not embedded or controlled; print a calibration sheet first.",
      },
      2,
    ),
  );
  const bytes = zipSync(files, {
    level: 6,
    mtime: new Date("1980-01-01T00:00:00.000Z"),
  });
  return new Blob([new Uint8Array(bytes).buffer], { type: "application/zip" });
 }
 export function svgFilename(index: number): string {
  return sanitizeDownloadFilename(
    `label-sheet-${String(index + 1).padStart(3, "0")}.svg`,
  );
 }
@@ -0,0 +1,73 @@
 import type { ImageAsset } from "./types";
 const ALLOWED = new Set(["image/png", "image/jpeg", "image/webp"]);
 const MAX_IMAGE_BYTES = 8 * 1024 * 1024;
 const MAX_TOTAL_BYTES = 32 * 1024 * 1024;
 const MAX_PIXELS = 40_000_000;
 export async function loadImageAssets(
  files: FileList | File[],
 ): Promise<ImageAsset[]> {
  const selected = [...files];
  if (selected.length > 50)
    throw new Error("A project is limited to 50 images.");
  if (selected.reduce((sum, file) => sum + file.size, 0) > MAX_TOTAL_BYTES)
    throw new Error("Image assets exceed the 32 MiB project limit.");
  const output: ImageAsset[] = [];
  for (const file of selected) {
    if (!ALLOWED.has(file.type))
      throw new Error(
        `${file.name}: only PNG, JPEG and WebP images are accepted.`,
      );
    if (file.size > MAX_IMAGE_BYTES)
      throw new Error(`${file.name}: image exceeds 8 MiB.`);
    const dimensions = await imageDimensions(file);
    if (dimensions.width * dimensions.height > MAX_PIXELS)
      throw new Error(`${file.name}: decoded image exceeds 40 megapixels.`);
    output.push({
      name: file.name,
      mimeType: file.type,
      dataUrl: await readDataUrl(file),
      width: dimensions.width,
      height: dimensions.height,
      bytes: file.size,
    });
  }
  return output;
 }
 async function imageDimensions(
  file: File,
 ): Promise<{ width: number; height: number }> {
  if ("createImageBitmap" in globalThis) {
    const bitmap = await createImageBitmap(file);
    try {
      return { width: bitmap.width, height: bitmap.height };
    } finally {
      bitmap.close();
    }
  }
  const url = URL.createObjectURL(file);
  try {
    const image = await new Promise<HTMLImageElement>((resolve, reject) => {
      const node = new Image();
      node.onload = () => resolve(node);
      node.onerror = () =>
        reject(new Error(`${file.name}: browser could not decode the image.`));
      node.src = url;
    });
    return { width: image.naturalWidth, height: image.naturalHeight };
  } finally {
    URL.revokeObjectURL(url);
  }
 }
 function readDataUrl(file: Blob): Promise<string> {
  return new Promise((resolve, reject) => {
    const reader = new FileReader();
    reader.onerror = () =>
      reject(reader.error ?? new Error("Image read failed."));
    reader.onload = () => resolve(String(reader.result));
    reader.readAsDataURL(file);
  });
 }
@@ -0,0 +1,80 @@
 import { PDFDocument } from "pdf-lib";
 import type { LabelStock, RenderResult } from "./types";
 export async function createPdf(
  result: RenderResult,
  stock: LabelStock,
 ): Promise<Blob> {
  if (result.pages.length > 100)
    throw new Error(
      "PDF export is limited to 100 pages; use SVG ZIP for larger runs.",
    );
  const pdf = await PDFDocument.create();
  const widthPt = (stock.pageWidthMm * 72) / 25.4;
  const heightPt = (stock.pageHeightMm * 72) / 25.4;
  for (const svg of result.pages) {
    const png = await rasterizeSvg(svg, stock.pageWidthMm, stock.pageHeightMm);
    const embedded = await pdf.embedPng(png);
    const page = pdf.addPage([widthPt, heightPt]);
    page.drawImage(embedded, {
      x: 0,
      y: 0,
      width: widthPt,
      height: heightPt,
    });
  }
  pdf.setTitle("Label Tools merge");
  pdf.setCreator("Label Tools 0.1.0");
  pdf.setProducer("Label Tools / pdf-lib");
  const bytes = await pdf.save({
    useObjectStreams: false,
    addDefaultPage: false,
  });
  return new Blob([new Uint8Array(bytes).buffer], {
    type: "application/pdf",
  });
 }
 async function rasterizeSvg(
  svg: string,
  widthMm: number,
  heightMm: number,
 ): Promise<Uint8Array> {
  const dpi = 144;
  const width = Math.ceil((widthMm / 25.4) * dpi);
  const height = Math.ceil((heightMm / 25.4) * dpi);
  if (width * height > 8_000_000)
    throw new Error(
      "Rasterized PDF page exceeds the 8 megapixel safety limit.",
    );
  const url = URL.createObjectURL(new Blob([svg], { type: "image/svg+xml" }));
  try {
    const image = await new Promise<HTMLImageElement>((resolve, reject) => {
      const node = new Image();
      node.onload = () => resolve(node);
      node.onerror = () =>
        reject(
          new Error("Browser could not rasterize the generated SVG page."),
        );
      node.src = url;
    });
    const canvas = document.createElement("canvas");
    canvas.width = width;
    canvas.height = height;
    const context = canvas.getContext("2d");
    if (!context) throw new Error("Canvas rendering is unavailable.");
    context.fillStyle = "white";
    context.fillRect(0, 0, width, height);
    context.drawImage(image, 0, 0, width, height);
    const blob = await new Promise<Blob>((resolve, reject) =>
      canvas.toBlob(
        (value) =>
          value ? resolve(value) : reject(new Error("PNG conversion failed.")),
        "image/png",
      ),
    );
    return new Uint8Array(await blob.arrayBuffer());
  } finally {
    URL.revokeObjectURL(url);
  }
 }
@@ -0,0 +1,556 @@
 import { barcodeFragment } from "./barcode";
 import { stockCapacity, validateStock } from "./stocks";
 import type {
  ImageAsset,
  MergeRecord,
  RenderOptions,
  RenderResult,
  RenderWarning,
 } from "./types";
 const ALLOWED_FONTS = new Set([
  "Arial, Helvetica, sans-serif",
  "Georgia, 'Times New Roman', serif",
  "'Courier New', Courier, monospace",
  "system-ui, sans-serif",
 ]);
 export function renderLabelPages(
  options: RenderOptions,
  maxPages = Number.POSITIVE_INFINITY,
 ): RenderResult {
  const stock = validateStock(options.stock);
  validateOptions(options);
  const capacity = stockCapacity(stock);
  const totalSlots = options.startPosition + options.records.length;
  const totalPages = Math.max(1, Math.ceil(totalSlots / capacity));
  const pageCount = Math.min(totalPages, Math.max(0, Math.floor(maxPages)));
  const warnings: RenderWarning[] = [];
  const imageByName = new Map(
    options.images.map((asset) => [asset.name, asset]),
  );
  const defaultImage = imageByName.get(options.defaultImage);
  const pages = Array.from({ length: pageCount }, (_, pageIndex) => {
    const labels: string[] = [];
    for (let slot = 0; slot < capacity; slot += 1) {
      const globalSlot = pageIndex * capacity + slot;
      const rowIndex = globalSlot - options.startPosition;
      if (rowIndex < 0 || rowIndex >= options.records.length) continue;
      const row = options.records[rowIndex]!;
      const column = slot % stock.columns;
      const rowPosition = Math.floor(slot / stock.columns);
      const x =
        options.calibration.offsetXmm +
        (stock.marginLeftMm + column * (stock.labelWidthMm + stock.gapXmm)) *
          options.calibration.scaleX;
      const y =
        options.calibration.offsetYmm +
        (stock.marginTopMm +
          rowPosition * (stock.labelHeightMm + stock.gapYmm)) *
          options.calibration.scaleY;
      const width = stock.labelWidthMm * options.calibration.scaleX;
      const height = stock.labelHeightMm * options.calibration.scaleY;
      const imageName = field(row, options.mapping.image);
      const image = imageByName.get(imageName) ?? defaultImage;
      labels.push(
        renderLabel(
          row,
          rowIndex,
          x,
          y,
          width,
          height,
          image,
          options,
          warnings,
        ),
      );
    }
    return pageSvg(
      stock.pageWidthMm,
      stock.pageHeightMm,
      labels.join(""),
      options,
      pageIndex,
    );
  });
  return { pages, totalPages, totalLabels: options.records.length, warnings };
 }
 function renderLabel(
  record: MergeRecord,
  rowIndex: number,
  x: number,
  y: number,
  width: number,
  height: number,
  image: ImageAsset | undefined,
  options: RenderOptions,
  warnings: RenderWarning[],
 ): string {
  const id = `clip-${rowIndex}-${Math.round(x * 100)}-${Math.round(y * 100)}`;
  const padding = Math.max(1.4, Math.min(width, height) * 0.06);
  const title = fitted(
    field(record, options.mapping.title),
    width * 0.62,
    height * 0.18,
    16,
    rowIndex,
    "title",
    warnings,
  );
  const subtitle = fitted(
    field(record, options.mapping.subtitle),
    width * 0.62,
    height * 0.12,
    10,
    rowIndex,
    "subtitle",
    warnings,
  );
  const body = fitted(
    field(record, options.mapping.body),
    width * 0.85,
    height * 0.24,
    9,
    rowIndex,
    "body",
    warnings,
    3,
  );
  const barcode = field(record, options.mapping.barcode);
  const content: string[] = [
    `<defs><clipPath id="${id}"><rect x="${n(x)}" y="${n(y)}" width="${n(width)}" height="${n(height)}" rx="${n(Math.min(2, height * 0.05))}"/></clipPath></defs>`,
    `<g clip-path="url(#${id})">`,
    `<rect x="${n(x)}" y="${n(y)}" width="${n(width)}" height="${n(height)}" fill="#fff"/>`,
  ];
  if (options.layout === "badge")
    renderBadge(content, {
      x,
      y,
      width,
      height,
      padding,
      title,
      subtitle,
      body,
      barcode,
      image,
      options,
      rowIndex,
      warnings,
    });
  else if (options.layout === "asset")
    renderAsset(content, {
      x,
      y,
      width,
      height,
      padding,
      title,
      subtitle,
      body,
      barcode,
      image,
      options,
      rowIndex,
      warnings,
    });
  else
    renderAddress(content, {
      x,
      y,
      width,
      height,
      padding,
      title,
      subtitle,
      body,
      barcode,
      image,
      options,
      rowIndex,
      warnings,
    });
  content.push("</g>");
  if (options.cutMarks)
    content.push(
      `<rect x="${n(x)}" y="${n(y)}" width="${n(width)}" height="${n(height)}" rx="0.8" fill="none" stroke="#7b8794" stroke-width="0.18" stroke-dasharray="1 1"/>`,
    );
  return content.join("");
 }
 interface ContentContext {
  x: number;
  y: number;
  width: number;
  height: number;
  padding: number;
  title: FitText;
  subtitle: FitText;
  body: FitText;
  barcode: string;
  image?: ImageAsset;
  options: RenderOptions;
  rowIndex: number;
  warnings: RenderWarning[];
 }
 function renderAddress(out: string[], context: ContentContext) {
  const {
    x,
    y,
    width,
    height,
    padding,
    title,
    subtitle,
    body,
    barcode,
    image,
    options,
    rowIndex,
    warnings,
  } = context;
  const imageWidth = image ? Math.min(width * 0.2, height * 0.32) : 0;
  if (image)
    out.push(
      imageElement(image, x + padding, y + padding, imageWidth, imageWidth),
    );
  const textX = x + padding + (image ? imageWidth + padding : 0);
  text(out, title, textX, y + padding + title.size, "700", options.fontFamily);
  text(
    out,
    subtitle,
    textX,
    y + padding + title.size + subtitle.size * 1.35,
    "600",
    options.fontFamily,
  );
  multiline(out, body, x + padding, y + height * 0.49, options.fontFamily);
  if (barcode)
    barcodeElement(
      out,
      barcode,
      options,
      x + width * 0.63,
      y + height * 0.56,
      width * 0.33,
      height * 0.35,
      rowIndex,
      warnings,
    );
 }
 function renderBadge(out: string[], context: ContentContext) {
  const {
    x,
    y,
    width,
    height,
    padding,
    title,
    subtitle,
    body,
    barcode,
    image,
    options,
    rowIndex,
    warnings,
  } = context;
  const imageWidth = image ? Math.min(width * 0.28, height - padding * 2) : 0;
  if (image)
    out.push(
      imageElement(
        image,
        x + padding,
        y + padding,
        imageWidth,
        height - padding * 2,
      ),
    );
  const textX = x + padding + (image ? imageWidth + padding : 0);
  text(out, title, textX, y + height * 0.34, "700", options.fontFamily);
  text(out, subtitle, textX, y + height * 0.48, "600", options.fontFamily);
  multiline(out, body, textX, y + height * 0.62, options.fontFamily);
  if (barcode)
    barcodeElement(
      out,
      barcode,
      options,
      x + width * 0.68,
      y + height * 0.62,
      width * 0.27,
      height * 0.3,
      rowIndex,
      warnings,
    );
 }
 function renderAsset(out: string[], context: ContentContext) {
  const {
    x,
    y,
    width,
    height,
    padding,
    title,
    subtitle,
    body,
    barcode,
    image,
    options,
    rowIndex,
    warnings,
  } = context;
  text(
    out,
    title,
    x + padding,
    y + padding + title.size,
    "700",
    options.fontFamily,
  );
  text(
    out,
    subtitle,
    x + padding,
    y + padding + title.size + subtitle.size * 1.45,
    "600",
    options.fontFamily,
  );
  multiline(out, body, x + padding, y + height * 0.46, options.fontFamily);
  if (image)
    out.push(
      imageElement(
        image,
        x + width * 0.76,
        y + padding,
        width * 0.18,
        height * 0.28,
      ),
    );
  if (barcode)
    barcodeElement(
      out,
      barcode,
      options,
      x + padding,
      y + height * 0.58,
      width - padding * 2,
      height * 0.34,
      rowIndex,
      warnings,
    );
 }
 function barcodeElement(
  output: string[],
  value: string,
  options: RenderOptions,
  x: number,
  y: number,
  width: number,
  height: number,
  rowIndex: number,
  warnings: RenderWarning[],
 ) {
  try {
    const barcode = barcodeFragment(
      options.barcodeFormat,
      value,
      options.includeBarcodeText,
    );
    const [vx, vy, vw, vh] = barcode.viewBox;
    const scale = Math.min(width / vw, height / vh);
    const tx = x + (width - vw * scale) / 2 - vx * scale;
    const ty = y + (height - vh * scale) / 2 - vy * scale;
    output.push(
      `<g transform="translate(${n(tx)} ${n(ty)}) scale(${n(scale)})">${barcode.body}</g>`,
    );
  } catch (error) {
    warnings.push({
      row: rowIndex + 1,
      field: "barcode",
      message: error instanceof Error ? error.message : String(error),
    });
    output.push(
      `<rect x="${n(x)}" y="${n(y)}" width="${n(width)}" height="${n(height)}" fill="#fee2e2" stroke="#b42318" stroke-width="0.3"/><text x="${n(x + 1)}" y="${n(y + Math.min(4, height / 2))}" font-size="2.4" fill="#b42318">Barcode error</text>`,
    );
  }
 }
 function imageElement(
  asset: ImageAsset,
  x: number,
  y: number,
  width: number,
  height: number,
 ): string {
  return `<image x="${n(x)}" y="${n(y)}" width="${n(width)}" height="${n(height)}" href="${xml(asset.dataUrl)}" preserveAspectRatio="xMidYMid meet"/>`;
 }
 interface FitText {
  lines: string[];
  size: number;
  truncated: boolean;
 }
 function fitted(
  value: string,
  width: number,
  height: number,
  preferredPt: number,
  row: number,
  fieldName: string,
  warnings: RenderWarning[],
  maxLines = 1,
 ): FitText {
  const clean = [...value]
    .map((character) => {
      const code = character.codePointAt(0) ?? 0;
      return code <= 0x1f || code === 0x7f ? " " : character;
    })
    .join("")
    .replace(/\s+/gu, " ")
    .trim();
  if (!clean)
    return { lines: [], size: preferredPt * 0.352778, truncated: false };
  const preferred = preferredPt * 0.352778;
  const size = Math.max(
    1.35,
    Math.min(preferred, (height / Math.max(1, maxLines)) * 0.78),
  );
  const characters = Math.max(1, Math.floor(width / (size * 0.56)));
  const lines = wrap(clean, characters, maxLines);
  const consumed = lines.join(" ").length;
  const truncated = consumed < clean.length;
  if (truncated)
    warnings.push({
      row: row + 1,
      field: fieldName,
      message: "Text was truncated to fit the selected layout.",
    });
  return { lines, size, truncated };
 }
 function wrap(value: string, characters: number, maxLines: number): string[] {
  const words = value.split(" ");
  const lines: string[] = [];
  let line = "";
  for (const word of words) {
    const candidate = line ? `${line} ${word}` : word;
    if (candidate.length <= characters) line = candidate;
    else {
      if (line) lines.push(line);
      line = word.length > characters ? word.slice(0, characters) : word;
      if (lines.length >= maxLines) break;
    }
  }
  if (line && lines.length < maxLines) lines.push(line);
  if (lines.length === maxLines && lines.join(" ").length < value.length)
    lines[lines.length - 1] =
      `${lines.at(-1)!.slice(0, Math.max(1, characters - 1))}…`;
  return lines;
 }
 function text(
  output: string[],
  content: FitText,
  x: number,
  y: number,
  weight: string,
  font: string,
 ) {
  if (!content.lines[0]) return;
  output.push(
    `<text x="${n(x)}" y="${n(y)}" font-family="${xml(font)}" font-size="${n(content.size)}" font-weight="${weight}" fill="#111827">${xml(content.lines[0])}</text>`,
  );
 }
 function multiline(
  output: string[],
  content: FitText,
  x: number,
  y: number,
  font: string,
 ) {
  if (!content.lines.length) return;
  output.push(
    `<text x="${n(x)}" y="${n(y)}" font-family="${xml(font)}" font-size="${n(content.size)}" fill="#374151">${content.lines.map((line, index) => `<tspan x="${n(x)}" dy="${index ? n(content.size * 1.25) : "0"}">${xml(line)}</tspan>`).join("")}</text>`,
  );
 }
 function pageSvg(
  width: number,
  height: number,
  labels: string,
  options: RenderOptions,
  page: number,
 ): string {
  const marks = options.registrationMarks
    ? registrationMarks(width, height)
    : "";
  return `<svg xmlns="http://www.w3.org/2000/svg" width="${n(width)}mm" height="${n(height)}mm" viewBox="0 0 ${n(width)} ${n(height)}" role="img" aria-label="Label sheet page ${page + 1}"><rect width="100%" height="100%" fill="#fff"/>${marks}${labels}</svg>`;
 }
 function registrationMarks(width: number, height: number): string {
  const points = [
    [4, 4],
    [width - 4, 4],
    [4, height - 4],
    [width - 4, height - 4],
  ];
  return `<g stroke="#111" stroke-width="0.2">${points.map(([x, y]) => `<path d="M${n(x! - 2)} ${n(y!)}h4M${n(x!)} ${n(y! - 2)}v4"/>`).join("")}</g>`;
 }
 function field(record: MergeRecord, key: string): string {
  return key ? (record[key] ?? "") : "";
 }
 function validateOptions(options: RenderOptions) {
  const { calibration } = options;
  if (
    ![
      calibration.offsetXmm,
      calibration.offsetYmm,
      calibration.scaleX,
      calibration.scaleY,
    ].every(Number.isFinite)
  )
    throw new Error("Calibration values must be finite.");
  if (
    Math.abs(calibration.offsetXmm) > 25 ||
    Math.abs(calibration.offsetYmm) > 25 ||
    calibration.scaleX < 0.8 ||
    calibration.scaleX > 1.2 ||
    calibration.scaleY < 0.8 ||
    calibration.scaleY > 1.2
  )
    throw new Error(
      "Calibration is outside the bounded ±25 mm / 80–120% range.",
    );
  if (
    !Number.isInteger(options.startPosition) ||
    options.startPosition < 0 ||
    options.startPosition >= stockCapacity(options.stock)
  )
    throw new Error("Start position is outside the selected stock.");
  if (options.records.length > 2_000)
    throw new Error("A merge is limited to 2,000 labels.");
  if (!ALLOWED_FONTS.has(options.fontFamily))
    throw new Error("Unsupported system font stack.");
 }
 function xml(value: string): string {
  return value
    .replaceAll("&", "&amp;")
    .replaceAll("<", "&lt;")
    .replaceAll(">", "&gt;")
    .replaceAll('"', "&quot;")
    .replaceAll("'", "&apos;");
 }
 function n(value: number): string {
  return Number(value.toFixed(4)).toString();
 }
@@ -0,0 +1,156 @@
 import type { LabelStock, Unit } from "./types";
 export const MM_PER_INCH = 25.4;
 export const PT_PER_INCH = 72;
 export const STOCKS: readonly LabelStock[] = [
  {
    id: "a4-3x8",
    name: "A4 · 3 × 8 general labels",
    pageName: "A4",
    pageWidthMm: 210,
    pageHeightMm: 297,
    columns: 3,
    rows: 8,
    labelWidthMm: 63.5,
    labelHeightMm: 33.9,
    marginLeftMm: 7.25,
    marginTopMm: 12.9,
    gapXmm: 2.5,
    gapYmm: 0,
    note: "Common 24-up A4 geometry; verify against the stock vendor template.",
  },
  {
    id: "a4-l7160",
    name: "A4 · 3 × 7 (63.5 × 38.1 mm)",
    pageName: "A4",
    pageWidthMm: 210,
    pageHeightMm: 297,
    columns: 3,
    rows: 7,
    labelWidthMm: 63.5,
    labelHeightMm: 38.1,
    marginLeftMm: 7.25,
    marginTopMm: 15.15,
    gapXmm: 2.5,
    gapYmm: 0,
    note: "Geometry commonly sold as L7160-compatible; verify your exact sheet.",
  },
  {
    id: "a4-l7163",
    name: "A4 · 2 × 7 (99.1 × 38.1 mm)",
    pageName: "A4",
    pageWidthMm: 210,
    pageHeightMm: 297,
    columns: 2,
    rows: 7,
    labelWidthMm: 99.1,
    labelHeightMm: 38.1,
    marginLeftMm: 4.65,
    marginTopMm: 15.15,
    gapXmm: 2.5,
    gapYmm: 0,
    note: "Geometry commonly sold as L7163-compatible; verify your exact sheet.",
  },
  {
    id: "letter-5160",
    name: "Letter · 3 × 10 (2.625 × 1 in)",
    pageName: "US Letter",
    pageWidthMm: 8.5 * MM_PER_INCH,
    pageHeightMm: 11 * MM_PER_INCH,
    columns: 3,
    rows: 10,
    labelWidthMm: 2.625 * MM_PER_INCH,
    labelHeightMm: MM_PER_INCH,
    marginLeftMm: 0.1875 * MM_PER_INCH,
    marginTopMm: 0.5 * MM_PER_INCH,
    gapXmm: 0.125 * MM_PER_INCH,
    gapYmm: 0,
    note: "Common 5160-compatible geometry; verify printer and stock measurements.",
  },
  {
    id: "letter-5163",
    name: "Letter · 2 × 5 (4 × 2 in)",
    pageName: "US Letter",
    pageWidthMm: 8.5 * MM_PER_INCH,
    pageHeightMm: 11 * MM_PER_INCH,
    columns: 2,
    rows: 5,
    labelWidthMm: 4 * MM_PER_INCH,
    labelHeightMm: 2 * MM_PER_INCH,
    marginLeftMm: 0.15625 * MM_PER_INCH,
    marginTopMm: 0.5 * MM_PER_INCH,
    gapXmm: 0.1875 * MM_PER_INCH,
    gapYmm: 0,
    note: "Common 5163-compatible geometry; verify printer and stock measurements.",
  },
  {
    id: "letter-badge",
    name: "Letter · 2 × 4 badge cards (4 × 2.5 in)",
    pageName: "US Letter",
    pageWidthMm: 8.5 * MM_PER_INCH,
    pageHeightMm: 11 * MM_PER_INCH,
    columns: 2,
    rows: 4,
    labelWidthMm: 4 * MM_PER_INCH,
    labelHeightMm: 2.5 * MM_PER_INCH,
    marginLeftMm: 0.15625 * MM_PER_INCH,
    marginTopMm: 0.5 * MM_PER_INCH,
    gapXmm: 0.1875 * MM_PER_INCH,
    gapYmm: 0.3333 * MM_PER_INCH,
    note: "Generic badge-card geometry, not a vendor guarantee.",
  },
 ] as const;
 export function toMillimetres(value: number, unit: Unit): number {
  if (!Number.isFinite(value)) throw new Error("Dimension must be finite.");
  if (unit === "in") return value * MM_PER_INCH;
  if (unit === "pt") return (value * MM_PER_INCH) / PT_PER_INCH;
  return value;
 }
 export function fromMillimetres(value: number, unit: Unit): number {
  if (unit === "in") return value / MM_PER_INCH;
  if (unit === "pt") return (value * PT_PER_INCH) / MM_PER_INCH;
  return value;
 }
 export function validateStock(stock: LabelStock): LabelStock {
  const finitePositive: (keyof LabelStock)[] = [
    "pageWidthMm",
    "pageHeightMm",
    "labelWidthMm",
    "labelHeightMm",
    "columns",
    "rows",
  ];
  for (const key of finitePositive) {
    const value = stock[key];
    if (typeof value !== "number" || !Number.isFinite(value) || value <= 0)
      throw new Error(`${key} must be positive.`);
  }
  if (
    !Number.isInteger(stock.columns) ||
    !Number.isInteger(stock.rows) ||
    stock.columns > 20 ||
    stock.rows > 50
  )
    throw new Error("Grid rows and columns must be bounded integers.");
  if (stock.pageWidthMm > 1_000 || stock.pageHeightMm > 1_000)
    throw new Error("Page dimensions cannot exceed 1,000 mm.");
  const right =
    stock.marginLeftMm +
    stock.columns * stock.labelWidthMm +
    (stock.columns - 1) * stock.gapXmm;
  const bottom =
    stock.marginTopMm +
    stock.rows * stock.labelHeightMm +
    (stock.rows - 1) * stock.gapYmm;
  if (right > stock.pageWidthMm + 0.01 || bottom > stock.pageHeightMm + 0.01)
    throw new Error("The label grid does not fit on the page.");
  return stock;
 }
 export function stockCapacity(stock: LabelStock): number {
  return stock.columns * stock.rows;
 }
@@ -0,0 +1,93 @@
 export type Unit = "mm" | "in" | "pt";
 export type LayoutKind = "address" | "badge" | "asset";
 export type BarcodeFormat =
  | "qrcode"
  | "code128"
  | "gs1-128"
  | "ean13"
  | "ean8"
  | "upca"
  | "code39"
  | "datamatrix"
  | "pdf417"
  | "azteccode";
 export type MergeRecord = Record<string, string>;
 export interface LabelStock {
  id: string;
  name: string;
  pageName: string;
  pageWidthMm: number;
  pageHeightMm: number;
  columns: number;
  rows: number;
  labelWidthMm: number;
  labelHeightMm: number;
  marginLeftMm: number;
  marginTopMm: number;
  gapXmm: number;
  gapYmm: number;
  note: string;
 }
 export interface Calibration {
  offsetXmm: number;
  offsetYmm: number;
  scaleX: number;
  scaleY: number;
 }
 export interface FieldMapping {
  title: string;
  subtitle: string;
  body: string;
  barcode: string;
  image: string;
 }
 export interface ImageAsset {
  name: string;
  mimeType: string;
  dataUrl: string;
  width: number;
  height: number;
  bytes: number;
 }
 export interface RenderOptions {
  stock: LabelStock;
  calibration: Calibration;
  layout: LayoutKind;
  mapping: FieldMapping;
  barcodeFormat: BarcodeFormat;
  includeBarcodeText: boolean;
  fontFamily: string;
  records: MergeRecord[];
  images: ImageAsset[];
  defaultImage: string;
  cutMarks: boolean;
  registrationMarks: boolean;
  startPosition: number;
 }
 export interface RenderWarning {
  row: number;
  field: string;
  message: string;
 }
 export interface RenderResult {
  pages: string[];
  totalPages: number;
  totalLabels: number;
  warnings: RenderWarning[];
 }
 export interface GeneratorOptions {
  count: number;
  serialPrefix: string;
  serialStart: number;
  serialPadding: number;
  randomLength: number;
 }
@@ -0,0 +1,18 @@
 import { StrictMode } from "react";
 import { createRoot } from "react-dom/client";
 import { App } from "./App";
 createRoot(document.getElementById("root")!).render(
  <StrictMode>
    <App />
  </StrictMode>,
 );
 if ("serviceWorker" in navigator && import.meta.env.PROD) {
  window.addEventListener("load", () => {
    const url = new URL("./sw.js", document.baseURI);
    void navigator.serviceWorker
      .register(url, { scope: new URL("./", document.baseURI).pathname })
      .catch(() => undefined);
  });
 }
@@ -0,0 +1,409 @@
 :root {
  color-scheme: light dark;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  --surface: color-mix(in srgb, Canvas 94%, #86efac 6%);
  --surface-strong: color-mix(in srgb, Canvas 86%, #86efac 14%);
  --line: color-mix(in srgb, CanvasText 18%, transparent);
  --muted: color-mix(in srgb, CanvasText 65%, transparent);
  --accent: #287a47;
  --accent-soft: color-mix(in srgb, Canvas 82%, #4ade80 18%);
  --warning: #9a5a00;
  background: Canvas;
  color: CanvasText;
 }
 * {
  box-sizing: border-box;
 }
 body {
  margin: 0;
  min-width: 320px;
  background: Canvas;
 }
 button,
 input,
 select,
 textarea {
  font: inherit;
 }
 button,
 .file-button {
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  background: var(--surface);
  color: inherit;
  padding: 0.62rem 0.85rem;
  cursor: pointer;
 }
 button:hover,
 button:focus-visible,
 .file-button:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
 }
 button:focus-visible,
 input:focus-visible,
 select:focus-visible,
 textarea:focus-visible,
 summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 2px;
 }
 button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
 }
 .primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
 }
 .toolbox-shell__main {
  width: min(100%, 90rem);
 }
 .workbench {
  width: 100%;
  padding: clamp(0.75rem, 2vw, 1.5rem);
  display: grid;
  gap: 1rem;
 }
 .panel {
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface);
  padding: clamp(0.85rem, 2vw, 1.25rem);
  min-width: 0;
 }
 .hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  background: linear-gradient(135deg, var(--surface), var(--accent-soft));
 }
 .hero h1 {
  font-size: clamp(1.65rem, 4vw, 2.65rem);
  margin: 0.15rem 0 0.35rem;
 }
 .hero p {
  margin: 0;
  max-width: 68ch;
  color: var(--muted);
 }
 .eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--accent);
 }
 .privacy-chip,
 .count {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
  font-size: 0.78rem;
  white-space: nowrap;
 }
 .status {
  min-height: 1.5em;
  margin: 0 0.2rem;
  color: var(--muted);
 }
 .studio-grid {
  display: grid;
  grid-template-columns: minmax(19rem, 31rem) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
 }
 .controls {
  display: grid;
  gap: 1rem;
 }
 .control-panel {
  display: grid;
  gap: 0.75rem;
 }
 .section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
 }
 .section-heading h2 {
  margin: 0.2rem 0 0;
 }
 label {
  display: grid;
  gap: 0.3rem;
  font-size: 0.84rem;
  color: var(--muted);
 }
 input,
 select,
 textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  background: Canvas;
  color: CanvasText;
  padding: 0.55rem 0.65rem;
 }
 textarea {
  min-height: 10rem;
  resize: vertical;
  font:
    0.78rem/1.45 ui-monospace,
    monospace;
 }
 .form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
 }
 .subpanel {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 0.75rem;
  display: grid;
  gap: 0.65rem;
 }
 .subpanel h3 {
  margin: 0;
  font-size: 0.95rem;
 }
 .hint,
 .boundary,
 .print-boundary {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
 }
 .boundary,
 .print-boundary {
  padding: 0.7rem;
  border-left: 3px solid var(--warning);
  background: color-mix(in srgb, var(--warning) 10%, Canvas);
  border-radius: 0.5rem;
 }
 .checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: inherit;
 }
 .checkbox input {
  width: auto;
 }
 .checkbox-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
 }
 .file-button {
  display: block;
  text-align: center;
  color: inherit;
 }
 .file-button input {
  position: absolute;
  width: 1px;
  height: 1px;
  clip: rect(0 0 0 0);
 }
 .asset-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.4rem;
 }
 .asset-list li {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.45rem;
  overflow-wrap: anywhere;
 }
 .asset-list img {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: contain;
  background: #fff;
  border-radius: 0.3rem;
 }
 .asset-list span {
  display: grid;
 }
 .asset-list small {
  color: var(--muted);
 }
 .preview-column {
  position: sticky;
  top: 1rem;
  display: grid;
  gap: 1rem;
  max-height: calc(100vh - 2rem);
  overflow: auto;
 }
 .page-frame {
  display: grid;
  place-items: center;
  padding: 1rem;
  border-radius: 0.75rem;
  background: #d8dee5;
  overflow: auto;
 }
 .page-frame img {
  display: block;
  max-width: 100%;
  max-height: 65vh;
  object-fit: contain;
  background: white;
  box-shadow: 0 0.5rem 1.5rem rgb(0 0 0 / 0.18);
 }
 .empty-preview {
  display: grid;
  min-height: 24rem;
  place-items: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 0.75rem;
 }
 .pager,
 .export-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
 }
 .pager span {
  color: var(--muted);
  font-size: 0.85rem;
 }
 .success {
  color: #19733d;
 }
 .warnings summary,
 details summary {
  cursor: pointer;
 }
 .warnings li {
  margin: 0.35rem 0;
 }
 .table-scroll {
  overflow: auto;
 }
 table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
 }
 th,
 td {
  padding: 0.45rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  max-width: 12rem;
  overflow-wrap: anywhere;
 }
 th {
  color: var(--muted);
 }
 .print-only {
  display: none;
 }
 .help-dialog {
  width: min(42rem, calc(100% - 2rem));
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: Canvas;
  color: CanvasText;
  padding: 1.25rem;
 }
 .help-dialog::backdrop {
  background: rgb(2 8 23 / 0.65);
 }
 .dialog-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
 }
 .dialog-heading button {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  font-size: 1.35rem;
 }
 .loading {
  padding: 2rem;
 }
@media (max-width: 900px) {
  .studio-grid {
    grid-template-columns: 1fr;
  }
  .preview-column {
    position: static;
    max-height: none;
  }
  .hero {
    align-items: stretch;
    flex-direction: column;
  }
 }
@media (max-width: 520px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }
 }
@media print {
  @page {
    margin: 0;
  }
  .toolbox-shell__header,
  .toolbox-shell__footer,
  .workbench > :not(.print-only) {
    display: none !important;
  }
  .toolbox-shell__main,
  .workbench {
    width: auto !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  .print-only {
    display: block;
  }
  .print-only .page-frame {
    display: block;
    padding: 0;
    margin: 0;
    background: white;
    break-after: page;
    overflow: visible;
  }
  .print-only .page-frame img {
    width: 100%;
    height: auto;
    max-width: none;
    max-height: none;
    box-shadow: none;
  }
 }
@@ -0,0 +1,8 @@
 import "@testing-library/jest-dom/vitest";
 import { afterEach } from "vitest";
 import { cleanup } from "@testing-library/react";
 afterEach(() => {
  cleanup();
  localStorage.clear();
 });
@@ -0,0 +1,41 @@
 {
  "$schema": "https://git.add-ideas.de/lotobo/toolbox-sdk/raw/branch/main/schemas/toolbox-app.v1.schema.json",
  "schemaVersion": 1,
  "id": "de.add-ideas.label-tools",
  "name": "Label Tools",
  "version": "0.1.0",
  "description": "Merge and print labels locally.",
  "entry": "./",
  "icon": "./favicon.svg",
  "categories": ["documents", "graphics", "productivity"],
  "tags": ["labels", "badges", "mail-merge", "barcode", "print", "svg", "pdf"],
  "integration": {
    "contextVersion": 1,
    "launchModes": ["navigate", "new-tab"],
    "embedding": "unsupported"
  },
  "requirements": {
    "secureContext": true,
    "workers": false,
    "indexedDb": false,
    "crossOriginIsolated": false,
    "topLevelContext": false
  },
  "privacy": {
    "processing": "local",
    "fileUploads": true,
    "telemetry": false,
    "label": "Data, images and generated labels stay in this browser."
  },
  "source": {
    "repository": "https://git.add-ideas.de/lotobo/label-tools",
    "license": "GPL-3.0-or-later"
  },
  "actions": [
    {
      "id": "source",
      "label": "Source",
      "url": "https://git.add-ideas.de/lotobo/label-tools"
    }
  ]
 }
@@ -0,0 +1,4 @@
 import { defineToolboxApp, parseToolboxApp } from "@add-ideas/toolbox-contract";
 import source from "./manifest.source.json";
 export const manifest = defineToolboxApp(parseToolboxApp(source));
@@ -0,0 +1 @@
 export const APP_VERSION = "0.1.0";
@@ -0,0 +1 @@
 /// <reference types="vite/client" />
@@ -0,0 +1,113 @@
 import { expect, test, type Page } from "@playwright/test";
 import { readFile } from "node:fs/promises";
 import { unzipSync, strFromU8 } from "fflate";
 const ORIGIN = "http://127.0.0.1:4202";
 async function watchLocalOnly(page: Page) {
  const external: string[] = [];
  await page.route("**/*", async (route) => {
    const url = new URL(route.request().url());
    if (url.origin !== ORIGIN) {
      external.push(url.href);
      await route.abort();
    } else await route.continue();
  });
  return external;
 }
 test("runs at a nested path, stays local and uses the shared width", async ({
  page,
 }) => {
  await page.setViewportSize({ width: 1800, height: 1000 });
  const external = await watchLocalOnly(page);
  await page.goto("/deep/nested/label/");
  await expect(
    page.getByRole("heading", { name: "Label Tools" }),
  ).toBeVisible();
  await expect(page.getByText("2 labels · 1 page")).toBeVisible();
  expect(external).toEqual([]);
  expect(
    await page
      .locator(".toolbox-shell__main")
      .evaluate((node) => getComputedStyle(node).width),
  ).toBe("1440px");
 });
 test("merges inert CSV and exports vector SVG and deterministic ZIP", async ({
  page,
 }) => {
  await page.goto("/deep/nested/label/");
  await page
    .getByTestId("merge-data")
    .fill(
      "name,subtitle,address,code\n<script>alert(1)</script>,Local,No upload,SAFE-1",
    );
  await page.getByRole("button", { name: "Parse and keep rows" }).click();
  await expect(page.getByText(/1 data row parsed locally/iu)).toBeVisible();
  const svgDownload = page.waitForEvent("download");
  await page.getByRole("button", { name: "Current SVG" }).click();
  const svgPath = await (await svgDownload).path();
  const svg = await readFile(svgPath!, "utf8");
  expect(svg).toContain("&lt;script&gt;alert");
  expect(svg).not.toContain("<script>");
  const zipDownload = page.waitForEvent("download");
  await page.getByRole("button", { name: "All SVG + report ZIP" }).click();
  const zipPath = await (await zipDownload).path();
  const files = unzipSync(new Uint8Array(await readFile(zipPath!)));
  expect(Object.keys(files)).toEqual([
    "label-sheet-001.svg",
    "merge-report.json",
  ]);
  expect(JSON.parse(strFromU8(files["merge-report.json"]!))).toMatchObject({
    application: "Label Tools 0.1.0",
    labels: 2,
  });
 });
 test("exports a local PDF with an explicit raster boundary", async ({
  page,
 }) => {
  await page.goto("/deep/nested/label/");
  const pending = page.waitForEvent("download", { timeout: 120_000 });
  await page.getByRole("button", { name: "PDF (144 DPI)" }).click();
  const download = await pending;
  expect(download.suggestedFilename()).toBe("label-tools-merge.pdf");
  const bytes = await readFile((await download.path())!);
  expect(bytes.subarray(0, 5).toString()).toBe("%PDF-");
  await expect(page.getByRole("status")).toContainText("PDF page");
 });
 test("integrates help, dark theme, PWA identity and hardened headers", async ({
  page,
  request,
 }) => {
  await page.goto("/deep/nested/label/");
  await page.getByRole("button", { name: "Help" }).click();
  await expect(
    page.getByRole("dialog", { name: "About Label Tools" }),
  ).toContainText("calibration sheet");
  await page.keyboard.press("Escape");
  await page.getByRole("button", { name: "Personalize" }).click();
  await page.getByRole("button", { name: "Dark" }).click();
  await expect(page.locator(".toolbox-shell").first()).toHaveAttribute(
    "data-toolbox-theme",
    "dark",
  );
  expect(
    await page.evaluate(async () =>
      Boolean(await navigator.serviceWorker.ready),
    ),
  ).toBe(true);
  const index = await request.get("/deep/nested/label/");
  expect(index.headers()["content-security-policy"]).toContain(
    "connect-src 'self'",
  );
  expect(await index.text()).not.toMatch(/\b(?:src|href)=["']\//u);
  const manifest = await request.get("/deep/nested/label/toolbox-app.json");
  await expect(manifest.json()).resolves.toMatchObject({
    id: "de.add-ideas.label-tools",
    version: "0.1.0",
    privacy: { processing: "local", telemetry: false },
  });
 });
@@ -0,0 +1,38 @@
 import { describe, expect, it } from "vitest";
 import { augmentRecords, parseMergeData } from "../../src/labels/data";
 describe("label merge data", () => {
  it("parses quoted CSV and bounded JSON records", () => {
    expect(
      parseMergeData('name,address\n"Ada, A.","Line 1\nLine 2"', "csv"),
    ).toEqual([{ name: "Ada, A.", address: "Line 1\nLine 2" }]);
    expect(
      parseMergeData('[{"name":"Grace","meta":{"team":"Compiler"}}]', "json"),
    ).toEqual([{ name: "Grace", "meta.team": "Compiler" }]);
  });
  it("rejects duplicate CSV headers and dangerous JSON keys", () => {
    expect(() => parseMergeData("name,name\na,b", "csv")).toThrow(/unique/iu);
    expect(() => parseMergeData('[{"__proto__":{"x":1}}]', "json")).toThrow(
      /Dangerous JSON/iu,
    );
  });
  it("adds deterministic serials and injected secure random bytes", () => {
    const records = augmentRecords(
      [{ name: "Ada" }],
      {
        count: 2,
        serialPrefix: "A-",
        serialStart: 7,
        serialPadding: 3,
        randomLength: 4,
      },
      (length) => new Uint8Array(length).fill(0),
    );
    expect(records).toEqual([
      { name: "Ada", __row: "1", __serial: "A-007", __random: "AAAA" },
      { __row: "2", __serial: "A-008", __random: "AAAA" },
    ]);
  });
 });
@@ -0,0 +1,70 @@
 import { describe, expect, it } from "vitest";
 import { renderLabelPages } from "../../src/labels/render";
 import {
  STOCKS,
  fromMillimetres,
  toMillimetres,
 } from "../../src/labels/stocks";
 import type { RenderOptions } from "../../src/labels/types";
 function options(): RenderOptions {
  return {
    stock: STOCKS[0]!,
    calibration: { offsetXmm: 0, offsetYmm: 0, scaleX: 1, scaleY: 1 },
    layout: "asset",
    mapping: {
      title: "name",
      subtitle: "serial",
      body: "body",
      barcode: "code",
      image: "image",
    },
    barcodeFormat: "qrcode",
    includeBarcodeText: false,
    fontFamily: "Arial, Helvetica, sans-serif",
    records: [
      {
        name: "<script>alert(1)</script>",
        serial: "A-1",
        body: "local",
        code: "https://example.test/inert",
        image: "",
      },
    ],
    images: [],
    defaultImage: "",
    cutMarks: true,
    registrationMarks: true,
    startPosition: 2,
  };
 }
 describe("label SVG renderer", () => {
  it("creates a physical-size inert SVG and escapes merged text", () => {
    const result = renderLabelPages(options());
    expect(result.pages).toHaveLength(1);
    expect(result.pages[0]).toContain('width="210mm"');
    expect(result.pages[0]).toContain("&lt;script&gt;alert");
    expect(result.pages[0]).not.toContain("<script>");
    expect(result.pages[0]).toContain("clip-path");
  });
  it("paginates with a start position and caps preview rendering", () => {
    const input = options();
    input.records = Array.from({ length: 60 }, (_, index) => ({
      name: String(index),
      code: String(index),
    }));
    expect(renderLabelPages(input, 2)).toMatchObject({
      totalPages: 3,
      totalLabels: 60,
    });
    expect(renderLabelPages(input, 2).pages).toHaveLength(2);
  });
  it("converts mm, inches and points round-trip", () => {
    expect(toMillimetres(1, "in")).toBeCloseTo(25.4);
    expect(fromMillimetres(25.4, "pt")).toBeCloseTo(72);
    expect(toMillimetres(fromMillimetres(42, "in"), "in")).toBeCloseTo(42);
  });
 });
@@ -0,0 +1,27 @@
 {
  "compilerOptions": {
    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
    "target": "ES2023",
    "lib": ["ES2023", "DOM", "DOM.Iterable"],
    "module": "ESNext",
    "types": ["vite/client", "node"],
    "allowArbitraryExtensions": true,
    "skipLibCheck": true,
    "moduleResolution": "Bundler",
    "allowImportingTsExtensions": true,
    "verbatimModuleSyntax": true,
    "moduleDetection": "force",
    "noEmit": true,
    "jsx": "react-jsx",
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "erasableSyntaxOnly": true,
    "noFallthroughCasesInSwitch": true,
    "strict": true,
    "noUncheckedIndexedAccess": true,
    "useDefineForClassFields": true,
    "resolveJsonModule": true,
    "isolatedModules": true
  },
  "include": ["src", "tests"]
 }
@@ -0,0 +1,11 @@
 {
  "files": [],
  "references": [
    {
      "path": "./tsconfig.app.json"
    },
    {
      "path": "./tsconfig.node.json"
    }
  ]
 }
@@ -0,0 +1,24 @@
 {
  "compilerOptions": {
    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
    "target": "ES2023",
    "lib": ["ES2023"],
    "module": "ESNext",
    "types": ["node"],
    "skipLibCheck": true,
    "moduleResolution": "Bundler",
    "allowImportingTsExtensions": true,
    "verbatimModuleSyntax": true,
    "moduleDetection": "force",
    "noEmit": true,
    "strict": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true
  },
  "include": [
    "vite.config.ts",
    "playwright.config.ts",
    "eslint.config.mjs",
    "scripts/**/*.mjs"
  ]
 }
@@ -0,0 +1,16 @@
 /// <reference types="vitest/config" />
 import { defineConfig } from "vite";
 import react from "@vitejs/plugin-react";
 export default defineConfig({
  base: "./",
  plugins: [react()],
  test: {
    environment: "jsdom",
    setupFiles: "./src/test/setup.ts",
    css: true,
    maxWorkers: 2,
    restoreMocks: true,
    exclude: ["tests/browser/**", "node_modules/**", "dist/**"],
  },
 });
		`@@ -0,0 +1 @@`
							`@add-ideas:registry=https://git.add-ideas.de/api/packages/lotobo/npm/`