import { test, expect } from "@playwright/test";
import { writeFile } from "node:fs/promises";

test("production analyzer matches the reviewed screenshot corpus", async ({ page }, testInfo) => {
  const fixture = process.env.FIXTURE_ID;
  await page.goto(fixture ? `/fixture.html?fixture=${encodeURIComponent(fixture)}` : "/fixture.html");
  const result = await page.evaluate(() => window.__fixtureRun);
  await writeFile(testInfo.outputPath("fixture-report.json"), JSON.stringify(result, null, 2));
  const artifacts = await page.evaluate(() => window.__fixtureArtifacts);
  for (const [fixtureId, artifact] of Object.entries(artifacts)) {
    const images = [
      ["overlay", artifact.preview],
      ...artifact.stages.map(({ key, image }) => [key, image]),
    ];
    for (const [label, dataUrl] of images) {
      if (!dataUrl) continue;
      const [, encoded] = dataUrl.split(",", 2);
      const extension = dataUrl.startsWith("data:image/png") ? "png" : "jpg";
      await writeFile(
        testInfo.outputPath(`${fixtureId}-${label}.${extension}`),
        Buffer.from(encoded, "base64"),
      );
    }
  }
  expect(result.total).toBeGreaterThan(0);
  expect(result.completed).toBe(result.total);
  if (!fixture) expect(result.completed).toBe(17);
  expect(result.failures, result.failures.join("\n")).toEqual([]);
});