import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';

describe('API Keys API', () => {
  const originalFetch = globalThis.fetch;

  beforeEach(() => {
    vi.resetModules();
    Object.defineProperty(window, 'location', {
      value: { href: '' },
      writable: true,
    });
  });

  afterEach(() => {
    globalThis.fetch = originalFetch;
  });

  describe('list', () => {
    it('should call GET /api/v1/user/api-keys and parse response', async () => {
      const mockKeys = [
        {
          id: 'key-1',
          provider_name: 'gemini',
          key_prefix: 'AIza...xQ',
          created_at: '2026-03-01T00:00:00Z',
          updated_at: '2026-03-01T00:00:00Z',
        },
        {
          id: 'key-2',
          provider_name: 'openai',
          key_prefix: 'sk-ab...cd',
          created_at: '2026-03-02T00:00:00Z',
          updated_at: '2026-03-02T00:00:00Z',
        },
      ];

      globalThis.fetch = vi.fn().mockResolvedValue({
        ok: true,
        status: 200,
        json: () => Promise.resolve(mockKeys),
      });

      const { apiKeysApi } = await import('~/api/apiKeys');
      const result = await apiKeysApi.list();

      expect(globalThis.fetch).toHaveBeenCalledWith(
        '/api/v1/user/api-keys',
        expect.objectContaining({
          method: 'GET',
          headers: expect.objectContaining({
            'X-Requested-With': 'XMLHttpRequest',
          }),
          credentials: 'same-origin',
        }),
      );

      expect(result).toEqual(mockKeys);
      expect(result).toHaveLength(2);
      expect(result[0].provider_name).toBe('gemini');
      expect(result[0].key_prefix).toBe('AIza...xQ');
      expect(result[1].provider_name).toBe('openai');
      expect(result[1].key_prefix).toBe('sk-ab...cd');
    });

    it('should return empty array when no keys configured', async () => {
      globalThis.fetch = vi.fn().mockResolvedValue({
        ok: true,
        status: 200,
        json: () => Promise.resolve([]),
      });

      const { apiKeysApi } = await import('~/api/apiKeys');
      const result = await apiKeysApi.list();

      expect(result).toEqual([]);
      expect(result).toHaveLength(0);
    });

    it('should never include full API key in list response', async () => {
      const mockKeys = [
        {
          id: 'key-1',
          provider_name: 'gemini',
          key_prefix: 'AIza...xQ',
          created_at: '2026-03-01T00:00:00Z',
          updated_at: '2026-03-01T00:00:00Z',
        },
      ];

      globalThis.fetch = vi.fn().mockResolvedValue({
        ok: true,
        status: 200,
        json: () => Promise.resolve(mockKeys),
      });

      const { apiKeysApi } = await import('~/api/apiKeys');
      const result = await apiKeysApi.list();

      // Verify no key field with full API key exists in the response
      for (const key of result) {
        expect(key).not.toHaveProperty('api_key');
        expect(key).not.toHaveProperty('encrypted_key');
        expect(key).toHaveProperty('key_prefix');
      }
    });
  });

  describe('create', () => {
    it('should call POST /api/v1/user/api-keys with body', async () => {
      const mockResponse = {
        id: 'key-3',
        provider_name: 'anthropic',
        key_prefix: 'sk-an...ef',
        created_at: '2026-03-10T00:00:00Z',
        updated_at: '2026-03-10T00:00:00Z',
      };

      globalThis.fetch = vi.fn().mockResolvedValue({
        ok: true,
        status: 200,
        json: () => Promise.resolve(mockResponse),
      });

      const { apiKeysApi } = await import('~/api/apiKeys');
      const result = await apiKeysApi.create({
        provider_name: 'anthropic',
        api_key: 'sk-ant-full-key-here',
      });

      expect(globalThis.fetch).toHaveBeenCalledWith(
        '/api/v1/user/api-keys',
        expect.objectContaining({
          method: 'POST',
          body: JSON.stringify({
            provider_name: 'anthropic',
            api_key: 'sk-ant-full-key-here',
          }),
          headers: expect.objectContaining({
            'Content-Type': 'application/json',
          }),
        }),
      );

      expect(result).toEqual(mockResponse);
      expect(result.key_prefix).toBe('sk-an...ef');
    });
  });

  describe('remove', () => {
    it('should call DELETE /api/v1/user/api-keys/:provider', async () => {
      globalThis.fetch = vi.fn().mockResolvedValue({
        ok: true,
        status: 204,
      });

      const { apiKeysApi } = await import('~/api/apiKeys');
      await apiKeysApi.remove('gemini');

      expect(globalThis.fetch).toHaveBeenCalledWith(
        '/api/v1/user/api-keys/gemini',
        expect.objectContaining({ method: 'DELETE' }),
      );
    });

    it('should encode provider name in URL', async () => {
      globalThis.fetch = vi.fn().mockResolvedValue({
        ok: true,
        status: 204,
      });

      const { apiKeysApi } = await import('~/api/apiKeys');
      await apiKeysApi.remove('provider with spaces');

      expect(globalThis.fetch).toHaveBeenCalledWith(
        '/api/v1/user/api-keys/provider%20with%20spaces',
        expect.objectContaining({ method: 'DELETE' }),
      );
    });
  });

  describe('test', () => {
    it('should call POST /api/v1/user/api-keys/:provider/test', async () => {
      const mockResponse = {
        success: true,
        message: 'Connection successful',
      };

      globalThis.fetch = vi.fn().mockResolvedValue({
        ok: true,
        status: 200,
        json: () => Promise.resolve(mockResponse),
      });

      const { apiKeysApi } = await import('~/api/apiKeys');
      const result = await apiKeysApi.test('gemini');

      expect(globalThis.fetch).toHaveBeenCalledWith(
        '/api/v1/user/api-keys/gemini/test',
        expect.objectContaining({
          method: 'POST',
          credentials: 'same-origin',
        }),
      );

      expect(result.success).toBe(true);
      expect(result.message).toBe('Connection successful');
    });

    it('should return failure result for invalid key', async () => {
      const mockResponse = {
        success: false,
        message: 'Invalid API key',
      };

      globalThis.fetch = vi.fn().mockResolvedValue({
        ok: true,
        status: 200,
        json: () => Promise.resolve(mockResponse),
      });

      const { apiKeysApi } = await import('~/api/apiKeys');
      const result = await apiKeysApi.test('openai');

      expect(result.success).toBe(false);
      expect(result.message).toBe('Invalid API key');
    });
  });
});

describe('Key prefix display formatting', () => {
  it('should display prefix as-is from the API response', () => {
    // The backend is responsible for generating the prefix (e.g., "sk-ab...cd")
    // The frontend displays it verbatim; this test documents that contract.
    const keyPrefix = 'sk-ab...cd';
    expect(keyPrefix).toMatch(/^.{2,6}\.\.\..{2,4}$/);
  });

  it('should handle various prefix formats', () => {
    const prefixes = [
      'AIza...xQ',    // Gemini-style
      'sk-ab...cd',   // OpenAI-style
      'sk-an...ef',   // Anthropic-style
    ];

    for (const prefix of prefixes) {
      // All prefixes should contain the ellipsis marker
      expect(prefix).toContain('...');
      // No prefix should be longer than 12 characters (prefix + ... + suffix)
      expect(prefix.length).toBeLessThanOrEqual(12);
    }
  });

  it('should never contain a full key value', () => {
    // A full API key is typically 30+ characters
    const prefix = 'sk-ab...cd';
    expect(prefix.length).toBeLessThan(20);
    expect(prefix).toContain('...');
  });
});