import { readdirSync, readFileSync, statSync } from "node:fs";
import { join } from "node:path";
import { describe, expect, it } from "vitest";

const SRC = join(__dirname, "..");

function sourceFiles(dir: string): string[] {
  return readdirSync(dir).flatMap((name) => {
    const path = join(dir, name);
    if (statSync(path).isDirectory()) {
      return sourceFiles(path);
    }
    return /\.(tsx?|css)$/.test(name) && !/\.spec\./.test(name) ? [path] : [];
  });
}

function read(relative: string): string {
  return readFileSync(join(SRC, relative), "utf8");
}

describe("area migration", () => {
  it("no file passes a gradient prop any more", () => {
    const offenders = sourceFiles(SRC).filter((file) => {
      const text = readFileSync(file, "utf8");
      return /gradient=|var\(--gradient-|\[background-image:var\(--gradient/.test(text);
    });
    expect(offenders).toEqual([]);
  });

  it("no source uses or defines the --gradient tokens any more (removed in task A4)", () => {
    const offenders = sourceFiles(SRC).filter((file) => /--gradient-/.test(readFileSync(file, "utf8")));
    expect(offenders).toEqual([]);
  });

  it("harvest detail uses Scissors, extraction create FlaskConical and storage only Warehouse", () => {
    expect(read("app/(app)/harvests/[id]/page.tsx")).toContain('area="harvests"');
    expect(read("app/(app)/extractions/new/page.tsx")).toContain('area="extractions"');
    const storage = read("app/(app)/storage/page.tsx");
    expect(storage).toContain('area="storage"');
    expect(storage).not.toMatch(/icon=\{Package\}/);
  });

  it("medicine packs, hive systems and voice settings use their own area icon", () => {
    expect(read("app/(app)/medicines/[id]/page.tsx")).not.toMatch(/icon=\{Package\}/);
    expect(read("app/(app)/medicines/lots/[id]/page.tsx")).toContain('area="medicines"');
    expect(read("app/(app)/settings/hive-systems/page.tsx")).toContain('area="hive-systems"');
    expect(read("app/(app)/settings/voice/page.tsx")).toContain('area="voice"');
  });

  it("no component passes a raw icon to the headers any more", () => {
    const offenders = sourceFiles(SRC).filter((file) => {
      const text = readFileSync(file, "utf8");
      return /<(PageHeader|DetailHeader|EntityCard)\b[^>]*\bicon=/.test(text);
    });
    expect(offenders).toEqual([]);
  });

  it("no white text outside the hive stage", () => {
    const offenders = sourceFiles(SRC)
      .filter((file) => !file.replaceAll("\\", "/").includes("/components/hive/"))
      .filter((file) => /\btext-white\b/.test(readFileSync(file, "utf8")));
    expect(offenders).toEqual([]);
  });

  it("the stage overlay on the hive stage uses the holo label colour instead of white", () => {
    expect(read("components/hive/editor/editor-stage-overlay.tsx")).not.toMatch(/\btext-white\b/);
  });
});