import { mkdtempSync, rmSync, writeFileSync } from "node:fs";
import { tmpdir } from "node:os";
import { join } from "node:path";
import { ffmpegAvailable, probeMedia } from "@snapotter/media-engine";
import { afterAll, beforeAll, describe, expect, it } from "vitest";
import { fixtures, readFixture } from "../../../fixtures/index.js";
import {
  buildTestApp,
  createMultipartPayload,
  loginAsAdmin,
  type TestApp,
} from "../../test-server.js";

const MP4 = readFixture(fixtures.video.tiny("mp4"));

let testApp: TestApp;
let adminToken: string;

beforeAll(async () => {
  testApp = await buildTestApp();
  adminToken = await loginAsAdmin(testApp.app);
}, 30_000);

afterAll(async () => {
  await testApp.cleanup();
}, 10_000);

describe.skipIf(!ffmpegAvailable())("mute-video (requires ffmpeg)", () => {
  it("removes audio and returns 200 with settings {}", async () => {
    // Verify the factory default for empty settings schema: send NO settings part
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "tiny.mp4", contentType: "video/mp4", content: MP4 },
    ]);
    const res = await testApp.app.inject({
      method: "POST",
      url: "/api/v1/tools/video/mute-video",
      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
      body,
    });
    expect(res.statusCode).toBe(200);
    const envelope = JSON.parse(res.body);
    expect(envelope.downloadUrl).toBeDefined();
    const dl = await testApp.app.inject({
      method: "GET",
      url: envelope.downloadUrl,
    });
    expect(dl.statusCode).toBe(200);
    expect(dl.rawPayload.length).toBeGreaterThan(100);

    // The whole point of the tool: the audio track is gone while the video
    // stream survives. The tiny.mp4 fixture ships with both a video and an
    // audio stream, so a genuine mute must drop audio and keep video.
    const tmpDir = mkdtempSync(join(tmpdir(), "mute-test-"));
    try {
      const probeFile = join(tmpDir, "muted.mp4");
      writeFileSync(probeFile, dl.rawPayload);
      const info = await probeMedia(probeFile);
      expect(info.streams.some((s) => s.type === "video")).toBe(true);
      expect(info.streams.every((s) => s.type !== "audio")).toBe(true);
    } finally {
      rmSync(tmpDir, { recursive: true, force: true });
    }
  }, 60_000);

  it("also works with explicit empty settings", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "tiny.mp4", contentType: "video/mp4", content: MP4 },
      { name: "settings", content: JSON.stringify({}) },
    ]);
    const res = await testApp.app.inject({
      method: "POST",
      url: "/api/v1/tools/video/mute-video",
      headers: { authorization: `Bearer ${adminToken}`, "content-type": contentType },
      body,
    });
    expect(res.statusCode).toBe(200);
    const envelope = JSON.parse(res.body);
    expect(envelope.downloadUrl).toBeDefined();
  }, 60_000);
});