import { expect, test, type Page } from "@playwright/test";
import { Buffer } from "node:buffer";

const ORIGIN = "http://127.0.0.1:4173";
async function localOnly(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 from a nested path without external requests", async ({ page }) => {
  const errors: string[] = [];
  page.on("pageerror", (error) => errors.push(error.message));
  page.on("console", (message) => {
    if (message.type() === "error") errors.push(message.text());
  });
  const external = await localOnly(page);
  await page.goto("/deep/nested/text/");
  await expect(page.getByRole("heading", { name: "Text Tools" })).toBeVisible();
  expect(external).toEqual([]);
  expect(errors).toEqual([]);
});

test("applies the visible text pipeline and preserves its last output", async ({
  page,
}) => {
  const external = await localOnly(page);
  await page.goto("/deep/nested/text/");
  await page.getByLabel("Text source").fill("  Alpha  \r\nAlpha\n");
  await page.getByRole("button", { name: "Apply pipeline" }).click();
  await expect(page.getByLabel("Transformed output")).toHaveValue("Alpha\n");
  await expect(
    page.getByRole("cell", { name: "Trim every line" }),
  ).toBeVisible();
  await expect(
    page.getByRole("cell", { name: "Deduplicate lines" }),
  ).toBeVisible();
  expect(external).toEqual([]);
});

test("shows byte evidence and composes an added literal transform", async ({
  page,
}) => {
  await page.goto("/deep/nested/text/");
  await page.getByLabel("Decode as").selectOption("utf-8");
  await page.locator('input[type="file"]').setInputFiles({
    name: "bom.txt",
    mimeType: "text/plain",
    buffer: Buffer.from([0xef, 0xbb, 0xbf, ...Buffer.from("old\r\nold")]),
  });
  await page.getByText("Byte decoding evidence").click();
  await expect(page.getByText("utf-8 / utf-8")).toBeVisible();
  await expect(
    page
      .locator("details")
      .filter({ hasText: "Byte decoding evidence" })
      .getByText("1 / 0 / 0", { exact: true }),
  ).toBeVisible();
  await page.getByLabel("New transformation").selectOption("replace-literal");
  await page.getByRole("button", { name: "Add step" }).click();
  await page.getByLabel("Literal search text").fill("old");
  await page.getByLabel("Literal replacement text").fill("new");
  await page.getByRole("button", { name: "Apply pipeline" }).click();
  await expect(page.getByLabel("Transformed output")).toHaveValue("new");
  await expect(
    page.getByRole("button", { name: "Export artifact + evidence" }),
  ).toBeVisible();
});

test("serves the release identity and hardened headers", async ({
  request,
}) => {
  const index = await request.get("/deep/nested/text/");
  expect(index.ok()).toBe(true);
  expect(index.headers()["content-security-policy"]).toContain(
    "default-src 'self'",
  );
  expect(await index.text()).not.toMatch(/\b(?:src|href)=["']\//u);
  const manifest = await request.get("/deep/nested/text/toolbox-app.json");
  await expect(manifest.json()).resolves.toMatchObject({
    id: "de.add-ideas.text-tools",
    version: "0.2.0",
    entry: "./",
  });
});