import { describe, expect, test } from "vitest";
import { extractHardcodedStrings, extractIntlFormattingUsages, renderMarkdown } from "./i18n-audit.mjs";

describe("i18n-audit renderMarkdown", () => {
  test("renders a clean baseline when there are no hits", () => {
    const md = renderMarkdown(
      { scannedFileCount: 5, fileHitCount: 0, totalHardcodedStrings: 0, intlFileCount: 0, totalIntlFormattingUsages: 0, files: [], intlFiles: [] },
      new Date("2026-05-17T00:00:00Z"),
    );
    expect(md).toContain("# i18n Audit — Baseline 2026-05-17");
    expect(md).toContain("No hardcoded strings detected. Audit clean.");
    expect(md).toContain("apps/web/app/{routes,modules,routeModules,components}/**/*.{ts,tsx}");
  });

  test("includes top-offender + detail tables when hits exist", () => {
    const md = renderMarkdown(
      {
        scannedFileCount: 2,
        fileHitCount: 1,
        totalHardcodedStrings: 2,
        intlFileCount: 0,
        totalIntlFormattingUsages: 0,
        files: [
          {
            filePath: "apps/web/app/components/Foo.tsx",
            hits: [
              { line: 12, text: "Save changes" },
              { line: 34, text: "Cancel" },
            ],
          },
        ],
        intlFiles: [],
      },
      new Date("2026-05-17T00:00:00Z"),
    );
    expect(md).toContain("| `apps/web/app/components/Foo.tsx` | 2 |");
    expect(md).toContain("Save changes");
    expect(md).toContain("Cancel");
  });

  test("reports locale-sensitive formatting signals separately from hardcoded JSX text", () => {
    const md = renderMarkdown(
      {
        scannedFileCount: 1,
        fileHitCount: 0,
        totalHardcodedStrings: 0,
        intlFileCount: 1,
        totalIntlFormattingUsages: 3,
        files: [],
        intlFiles: [
          {
            filePath: "apps/web/app/routes/admin.tsx",
            hits: [
              { line: 10, expression: "toLocaleString" },
              { line: 11, expression: "DateUtils.dateYMD" },
              { line: 12, expression: "NumberUtils.intFormat" },
            ],
          },
        ],
      },
      new Date("2026-05-17T00:00:00Z"),
    );

    expect(md).toContain("| Files with locale-sensitive formatting signals | 1 |");
    expect(md).toContain("## Formatting migration signals");
    expect(md).toContain("| `apps/web/app/routes/admin.tsx:10` | `toLocaleString` |");
    expect(md).toContain("| `apps/web/app/routes/admin.tsx:11` | `DateUtils.dateYMD` |");
    expect(md).toContain("| `apps/web/app/routes/admin.tsx:12` | `NumberUtils.intFormat` |");
  });
});

describe("i18n-audit extractHardcodedStrings", () => {
  test("detects visible JSX text", () => {
    expect(extractHardcodedStrings("<h1>Visible heading</h1>")).toEqual([{ line: 1, text: "Visible heading" }]);
  });

  test("ignores html fragments inside string literals", () => {
    expect(
      extractHardcodedStrings(
        [
          'const html = "<p>Watch the demo video:</p>";',
          "const body = '<strong>It works!</strong>';",
          "const template = `<section>Configure account</section>`;",
        ].join("\n"),
      ),
    ).toEqual([]);
  });
});

describe("i18n-audit extractIntlFormattingUsages", () => {
  test("finds toLocale, DateUtils, and NumberUtils usages", () => {
    expect(
      extractIntlFormattingUsages(
        [
          "const amount = value.toLocaleString();",
          "const date = DateUtils.dateYMD(createdAt);",
          "const count = NumberUtils.intFormat(total);",
        ].join("\n"),
      ),
    ).toEqual([
      { line: 1, expression: "toLocaleString" },
      { line: 2, expression: "DateUtils.dateYMD" },
      { line: 3, expression: "NumberUtils.intFormat" },
    ]);
  });
});