/**
 * Integration tests for the red-eye-removal tool (/api/v1/tools/image/red-eye-removal).
 *
 * This tool requires the Python sidecar (MediaPipe face-detection bundle).
 * Tests accept both 200 (sidecar running) and 501 (not installed) for the
 * processing path while fully testing validation paths that don't depend on
 * the sidecar.
 */

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 PNG = readFixture(fixtures.image.base.png200);
const JPG = readFixture(fixtures.image.base.jpg100);
const HEIC = readFixture(fixtures.image.base.heic200);
const TINY = readFixture(fixtures.image.edge.px1);

let testApp: TestApp;
let app: TestApp["app"];
let adminToken: string;

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

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

describe("Red Eye Removal", () => {
  // ── Processing (AI-dependent) ────────────────────────────────────

  it("route exists and responds to POST", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test.png", contentType: "image/png", content: PNG },
      { name: "settings", content: JSON.stringify({}) },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    expect([202, 501]).toContain(res.statusCode);
  }, 60_000);

  it("accepts default settings", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test.png", contentType: "image/png", content: PNG },
      { name: "settings", content: JSON.stringify({}) },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    expect([202, 501]).toContain(res.statusCode);

    if (res.statusCode === 202) {
      const result = JSON.parse(res.body);
      expect(result.jobId).toBeDefined();
      expect(result.async).toBe(true);
    }

    if (res.statusCode === 501) {
      const result = JSON.parse(res.body);
      expect(result.code).toBe("FEATURE_NOT_INSTALLED");
    }
  }, 60_000);

  it("accepts explicit sensitivity and strength", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test.png", contentType: "image/png", content: PNG },
      {
        name: "settings",
        content: JSON.stringify({ sensitivity: 80, strength: 90 }),
      },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    expect([202, 501]).toContain(res.statusCode);
  }, 60_000);

  it("accepts explicit format and quality", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test.png", contentType: "image/png", content: PNG },
      {
        name: "settings",
        content: JSON.stringify({ format: "png", quality: 85 }),
      },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    expect([202, 501]).toContain(res.statusCode);
  }, 60_000);

  it("processes JPEG input", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "photo.jpg", contentType: "image/jpeg", content: JPG },
      { name: "settings", content: JSON.stringify({}) },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    expect([202, 501]).toContain(res.statusCode);
  }, 60_000);

  it(
    "handles HEIC input",
    { timeout: 120_000 },
    async () => {
      const { body, contentType } = createMultipartPayload([
        { name: "file", filename: "photo.heic", contentType: "image/heic", content: HEIC },
        { name: "settings", content: JSON.stringify({}) },
      ]);

      const res = await app.inject({
        method: "POST",
        url: "/api/v1/tools/image/red-eye-removal",
        headers: {
          authorization: `Bearer ${adminToken}`,
          "content-type": contentType,
        },
        body,
      });

      expect([202, 501]).toContain(res.statusCode);
    },
    60_000,
  );

  it("handles 1x1 pixel input", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "tiny.png", contentType: "image/png", content: TINY },
      { name: "settings", content: JSON.stringify({}) },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    // AI tool may return 200, 501 (not installed), or 422 (processing error on tiny image)
    expect([202, 422, 501]).toContain(res.statusCode);
  }, 60_000);

  // ── Validation (always testable) ─────────────────────────────────

  it("rejects requests without a file", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "settings", content: JSON.stringify({ sensitivity: 50 }) },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    // 400 (file check runs before tool-installed check) or 501 (tool-installed check first)
    expect([400, 501]).toContain(res.statusCode);
    if (res.statusCode === 400) {
      const result = JSON.parse(res.body);
      expect(result.error).toMatch(/no image/i);
    }
  });

  it("rejects invalid settings JSON", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test.png", contentType: "image/png", content: PNG },
      { name: "settings", content: "not valid json{{{" },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    expect([400, 501]).toContain(res.statusCode);
    if (res.statusCode === 400) {
      const result = JSON.parse(res.body);
      expect(result.error).toMatch(/json/i);
    }
  });

  it("rejects sensitivity out of range", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test.png", contentType: "image/png", content: PNG },
      {
        name: "settings",
        content: JSON.stringify({ sensitivity: 200 }),
      },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    expect([400, 501]).toContain(res.statusCode);
    if (res.statusCode === 400) {
      const result = JSON.parse(res.body);
      expect(result.error).toMatch(/invalid settings/i);
    }
  });

  it("rejects strength out of range", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test.png", contentType: "image/png", content: PNG },
      {
        name: "settings",
        content: JSON.stringify({ strength: -10 }),
      },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    expect([400, 501]).toContain(res.statusCode);
    if (res.statusCode === 400) {
      const result = JSON.parse(res.body);
      expect(result.error).toMatch(/invalid settings/i);
    }
  });

  it("rejects quality out of range", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test.png", contentType: "image/png", content: PNG },
      {
        name: "settings",
        content: JSON.stringify({ quality: 0 }),
      },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: {
        authorization: `Bearer ${adminToken}`,
        "content-type": contentType,
      },
      body,
    });

    expect([400, 501]).toContain(res.statusCode);
    if (res.statusCode === 400) {
      const result = JSON.parse(res.body);
      expect(result.error).toMatch(/invalid settings/i);
    }
  });

  it("rejects unauthenticated requests", async () => {
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test.png", contentType: "image/png", content: PNG },
      { name: "settings", content: JSON.stringify({}) },
    ]);

    const res = await app.inject({
      method: "POST",
      url: "/api/v1/tools/image/red-eye-removal",
      headers: { "content-type": contentType },
      body,
    });

    expect(res.statusCode).toBe(401);
  });
});
