import { describe, expect, it } from "vitest";
import {
  defaultTemplate,
  exportTemplate,
  importTemplate,
  mergeContent,
  validateTemplate,
} from "../../src/labels/template";

describe("label template model", () => {
  it("round-trips a bounded reusable template", () => {
    const template = defaultTemplate(63.5, 33.9);
    expect(importTemplate(exportTemplate(template))).toEqual(template);
    expect(mergeContent("{{name}} / {{missing}}", { name: "Ada" })).toBe(
      "Ada / ",
    );
  });

  it("reports quiet zones and rejects out-of-bounds elements", () => {
    const template = defaultTemplate(40, 20);
    const barcode = template.elements.find(
      (element) => element.kind === "barcode",
    )!;
    if (barcode.kind !== "barcode") throw new Error("fixture mismatch");
    barcode.quietZoneMm = 0;
    barcode.xMm = 100;
    const issues = validateTemplate(template);
    expect(issues.some((issue) => issue.severity === "warning")).toBe(true);
    expect(issues.some((issue) => issue.severity === "error")).toBe(true);
  });

  it("rejects malformed imported element collections without iterating them", () => {
    const malformed = JSON.stringify({
      ...defaultTemplate(40, 20),
      elements: { unexpected: true },
    });
    expect(() => importTemplate(malformed)).toThrow(/at most 100 elements/iu);
  });
});