// tests/api/icon_sets.test.js
import { describe, it, expect, beforeAll, beforeEach } from 'vitest';
import { mkdtempSync, mkdirSync, writeFileSync } from 'node:fs';
import { tmpdir } from 'node:os';
import path from 'node:path';
import request from 'supertest';
import { createApp } from '../../server.js';
import * as sets from '../../lib/icons/sets.js';

const PNG = Buffer.from([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0, 0, 0, 0]);

let app;
let setsDir;
let bundledDir;

beforeAll(() => {
  process.env.OWNER_TOKEN = 'test-token';
  app = createApp();
});

beforeEach(() => {
  // Set up fresh temp dirs with a fake bundled device icon so the bundled set is non-empty.
  setsDir = mkdtempSync(path.join(tmpdir(), 'iconsets-'));
  bundledDir = path.join(setsDir, '__bundled');
  mkdirSync(bundledDir, { recursive: true });
  writeFileSync(path.join(bundledDir, 'router.svg'), '<svg><path/></svg>');
  sets._setDirs({ setsDir, bundledDir });
});

const owner = r => r.set('Authorization', 'Bearer test-token');

describe('GET /api/icon-sets', () => {
  it('returns 200 with an array including the bundled devices set', async () => {
    const res = await request(app).get('/api/icon-sets');
    expect(res.status).toBe(200);
    expect(Array.isArray(res.body)).toBe(true);
    const dev = res.body.find(s => s.set === 'devices');
    expect(dev).toBeDefined();
    expect(dev.readonly).toBe(true);
  });
});

describe('POST /api/icon-sets/:set', () => {
  it('returns 401 (not 500) without auth', async () => {
    const res = await request(app)
      .post('/api/icon-sets/mytest')
      .attach('files', PNG, { filename: 'router.png', contentType: 'image/png' });
    expect(res.status).toBe(401);
  });

  it('returns 200 and uploads the icon with owner auth', async () => {
    const res = await owner(
      request(app).post('/api/icon-sets/mytest')
    ).attach('files', PNG, { filename: 'router.png', contentType: 'image/png' });
    expect(res.status).toBe(200);
    expect(res.body.set).toBe('mytest');
    expect(res.body.icons).toContain('router.png');
  });
});

describe('GET /api/icon-sets/:set/:file', () => {
  it('serves a previously uploaded icon with image/png content-type', async () => {
    // Upload first
    await owner(
      request(app).post('/api/icon-sets/mytest')
    ).attach('files', PNG, { filename: 'router.png', contentType: 'image/png' });

    const res = await request(app).get('/api/icon-sets/mytest/router.png');
    expect(res.status).toBe(200);
    expect(res.headers['content-type']).toContain('image/png');
  });
});