import { beforeEach, describe, expect, it, vi } from 'vitest';
import { createApp } from '../src/server/app.js';
import { pool, query } from '../src/server/db/pool.js';
import { getCertificateExpiry } from '../src/server/modules/monitoring/certificate.js';

vi.mock('../src/server/db/pool.js', () => ({
  pool: {
    connect: vi.fn(),
  },
  query: vi.fn(),
}));

vi.mock('../src/server/modules/monitoring/certificate.js', () => ({
  getCertificateExpiry: vi.fn(),
}));

const USER_ID = '11111111-1111-4111-8111-111111111111';
const SITE_ID = '22222222-2222-4222-8222-222222222222';
const ALERT_ID = '33333333-3333-4333-8333-333333333333';
const WEBHOOK_ID = '44444444-4444-4444-8444-444444444444';
const PUSH_ENDPOINT = 'https://push.example.com/subscription';

function authCookie() {
  return 'certremind_session=session-1';
}

function csrfCookie() {
  return `${authCookie()}; certremind_csrf=csrf-token`;
}

function mockAuthenticatedUser() {
  query.mockImplementation(async (sql, params) => {
    if (sql.includes('FROM sessions s')) {
      expect(params).toEqual(['session-1']);
      return {
        rows: [
          {
            user_id: USER_ID,
            username: 'alice',
            display_name: 'Alice',
          },
        ],
      };
    }

    throw new Error(`Unexpected query: ${sql}`);
  });
}

describe('API security boundaries', () => {
  beforeEach(() => {
    query.mockReset();
    pool.connect.mockReset();
    getCertificateExpiry.mockReset();
  });

  it('requires a CSRF token for state-changing API requests', async () => {
    const app = createApp();

    const response = await app.request('/api/sites', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({ url: 'https://example.com', alias: 'Example' }),
    });

    expect(response.status).toBe(403);
    await expect(response.json()).resolves.toMatchObject({
      error: 'CSRF トークンが不正です',
    });
    expect(query).not.toHaveBeenCalled();
  });

  it('requires authentication for site listing', async () => {
    const app = createApp();

    const response = await app.request('/api/sites');

    expect(response.status).toBe(401);
    await expect(response.json()).resolves.toMatchObject({
      error: '認証が必要です',
    });
    expect(query).not.toHaveBeenCalled();
  });

  it('uses the session user when listing sites', async () => {
    mockAuthenticatedUser();
    query.mockImplementationOnce(query.getMockImplementation()).mockImplementationOnce(async (sql, params) => {
      expect(sql).toContain('FROM sites');
      expect(params).toEqual([USER_ID]);
      return {
        rows: [
          {
            site_id: SITE_ID,
            url: 'https://example.com/',
            alias: 'Example',
            certificate_issuer: 'C = US, O = Example CA, CN = Example Root',
            certificate_issued_at: '2026-01-01T00:00:00.000Z',
            certificate_expires_at: '2026-12-31T00:00:00.000Z',
            certificate_checked_at: '2026-05-21T00:00:00.000Z',
            certificate_check_error: null,
            created_at: '2026-05-20T00:00:00.000Z',
            updated_at: '2026-05-21T00:00:00.000Z',
          },
        ],
      };
    });

    const app = createApp();
    const response = await app.request('/api/sites', {
      headers: {
        Cookie: authCookie(),
      },
    });

    expect(response.status).toBe(200);
    await expect(response.json()).resolves.toMatchObject({
      sites: [
        {
          siteId: SITE_ID,
          certificateIssuer: 'C = US, O = Example CA, CN = Example Root',
          certificateIssuedAt: '2026-01-01T00:00:00.000Z',
          certificateExpiresAt: '2026-12-31T00:00:00.000Z',
        },
      ],
    });
  });

  it('rejects private webhook URLs before insertion', async () => {
    mockAuthenticatedUser();
    const app = createApp();

    const response = await app.request('/api/notification-methods/webhooks', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({ alias: 'Internal', url: 'https://127.0.0.1/hook' }),
    });

    expect(response.status).toBe(400);
    expect(query).toHaveBeenCalledTimes(1);
  });

  it('does not expose registered push subscription lists', async () => {
    mockAuthenticatedUser();
    query.mockImplementationOnce(query.getMockImplementation()).mockImplementationOnce(async (sql, params) => {
      expect(sql).toContain('FROM notification_methods');
      expect(sql).toContain("notification_type = 'webhook'");
      expect(params).toEqual([USER_ID]);
      return {
        rows: [
          {
            notification_method_id: WEBHOOK_ID,
            alias: 'Deploy hook',
            url: 'https://hooks.example.com/',
            created_at: '2026-05-20T00:00:00.000Z',
            updated_at: '2026-05-21T00:00:00.000Z',
          },
        ],
      };
    }).mockImplementationOnce(async (sql, params) => {
      expect(sql).toContain('FROM user_notification_settings');
      expect(params).toEqual([USER_ID]);
      return { rows: [] };
    });

    const app = createApp();
    const response = await app.request('/api/notification-methods', {
      headers: {
        Cookie: authCookie(),
      },
    });

    expect(response.status).toBe(200);
    const data = await response.json();
    expect(data.webhooks).toHaveLength(1);
    expect(data).not.toHaveProperty('pushSubscriptions');
    expect(data.webhookMessageSettings).toMatchObject({
      timezone: 'Asia/Tokyo',
      usesDefault: true,
    });
  });

  it('requires a CSRF token when saving webhook message settings', async () => {
    const app = createApp();

    const response = await app.request('/api/notification-methods/webhook-message-settings', {
      method: 'PUT',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        webhookMessageTemplate: '{{siteDomain}}',
      }),
    });

    expect(response.status).toBe(403);
    expect(query).not.toHaveBeenCalled();
  });

  it('rejects invalid webhook message templates before persistence', async () => {
    mockAuthenticatedUser();
    const app = createApp();

    const unsupportedVariable = await app.request('/api/notification-methods/webhook-message-settings', {
      method: 'PUT',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({
        webhookMessageTemplate: '{{unknownValue}}',
      }),
    });

    expect(unsupportedVariable.status).toBe(400);
    expect(query).toHaveBeenCalledTimes(1);
  });

  it('rejects invalid account timezone before persistence', async () => {
    mockAuthenticatedUser();
    const app = createApp();

    const invalidTimezone = await app.request('/api/account/profile', {
      method: 'PATCH',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({
        displayName: 'Alice',
        timezone: 'Mars/Base',
      }),
    });

    expect(invalidTimezone.status).toBe(400);
    expect(query).toHaveBeenCalledTimes(1);
    expect(pool.connect).not.toHaveBeenCalled();
  });

  it('saves account timezone for the session user only', async () => {
    const client = {
      query: vi.fn(async (sql, params) => {
        if (sql === 'BEGIN' || sql === 'COMMIT') return { rows: [] };
        expect(sql).toContain('INSERT INTO user_notification_settings');
        expect(params).toEqual([USER_ID, 'Alice', 'America/New_York']);
        return {
          rows: [
            {
              user_id: USER_ID,
              username: 'alice',
              display_name: 'Alice',
              otp_secret: null,
              timezone: 'America/New_York',
            },
          ],
        };
      }),
      release: vi.fn(),
    };
    pool.connect.mockResolvedValue(client);
    mockAuthenticatedUser();

    const app = createApp();
    const response = await app.request('/api/account/profile', {
      method: 'PATCH',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({
        displayName: 'Alice',
        timezone: 'America/New_York',
      }),
    });

    expect(response.status).toBe(200);
    await expect(response.json()).resolves.toMatchObject({
      account: { timezone: 'America/New_York' },
    });
    expect(client.query).toHaveBeenCalledWith('COMMIT');
    expect(client.release).toHaveBeenCalledOnce();
  });

  it('saves and deletes webhook message settings for the session user only', async () => {
    mockAuthenticatedUser();
    query
      .mockImplementationOnce(query.getMockImplementation())
      .mockImplementationOnce(async (sql, params) => {
        expect(sql).toContain('INSERT INTO user_notification_settings');
        expect(params).toEqual([USER_ID, '{{siteDomain}}']);
        return {
          rows: [
            {
              webhook_message_template: '{{siteDomain}}',
              timezone: 'Asia/Tokyo',
            },
          ],
        };
      });

    const app = createApp();
    const saveResponse = await app.request('/api/notification-methods/webhook-message-settings', {
      method: 'PUT',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({
        webhookMessageTemplate: '{{siteDomain}}',
      }),
    });

    expect(saveResponse.status).toBe(200);

    query.mockReset();
    mockAuthenticatedUser();
    query
      .mockImplementationOnce(query.getMockImplementation())
      .mockImplementationOnce(async (sql, params) => {
        expect(sql).toContain('UPDATE user_notification_settings');
        expect(sql).toContain('webhook_message_template = NULL');
        expect(params).toEqual([USER_ID]);
        return { rows: [{ webhook_message_template: null, timezone: 'Asia/Tokyo' }] };
      });

    const deleteResponse = await app.request('/api/notification-methods/webhook-message-settings', {
      method: 'DELETE',
      headers: {
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
    });

    expect(deleteResponse.status).toBe(200);
  });

  it('reports the current browser push subscription as registered for the session user', async () => {
    mockAuthenticatedUser();
    query.mockImplementationOnce(query.getMockImplementation()).mockImplementationOnce(async (sql, params) => {
      expect(sql).toContain('FROM notification_methods');
      expect(sql).toContain("notification_type = 'push'");
      expect(params).toEqual([USER_ID, PUSH_ENDPOINT]);
      return { rows: [{ notification_method_id: '66666666-6666-4666-8666-666666666666' }] };
    });

    const app = createApp();
    const response = await app.request('/api/notification-methods/push-subscription-status', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({ endpoint: PUSH_ENDPOINT }),
    });

    expect(response.status).toBe(200);
    await expect(response.json()).resolves.toEqual({ registered: true });
  });

  it('reports push subscriptions for other users or unknown endpoints as unregistered', async () => {
    mockAuthenticatedUser();
    query.mockImplementationOnce(query.getMockImplementation()).mockImplementationOnce(async (sql, params) => {
      expect(sql).toContain('FROM notification_methods');
      expect(params).toEqual([USER_ID, PUSH_ENDPOINT]);
      return { rows: [] };
    });

    const app = createApp();
    const response = await app.request('/api/notification-methods/push-subscription-status', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({ endpoint: PUSH_ENDPOINT }),
    });

    expect(response.status).toBe(200);
    await expect(response.json()).resolves.toEqual({ registered: false });
  });

  it('rejects non-HTTPS push subscription status endpoints', async () => {
    mockAuthenticatedUser();

    const app = createApp();
    const response = await app.request('/api/notification-methods/push-subscription-status', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({ endpoint: 'http://push.example.com/subscription' }),
    });

    expect(response.status).toBe(400);
    expect(query).toHaveBeenCalledTimes(1);
  });

  it('requires a CSRF token when deleting push subscriptions', async () => {
    const app = createApp();

    const response = await app.request('/api/notification-methods/push-subscriptions', {
      method: 'DELETE',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({ endpoint: PUSH_ENDPOINT }),
    });

    expect(response.status).toBe(403);
    expect(query).not.toHaveBeenCalled();
  });

  it('deletes the current user push subscription by endpoint', async () => {
    mockAuthenticatedUser();
    query.mockImplementationOnce(query.getMockImplementation()).mockImplementationOnce(async (sql, params) => {
      expect(sql).toContain('DELETE FROM notification_methods');
      expect(sql).toContain("notification_type = 'push'");
      expect(params).toEqual([USER_ID, PUSH_ENDPOINT]);
      return { rows: [{ notification_method_id: '66666666-6666-4666-8666-666666666666' }] };
    });

    const app = createApp();
    const response = await app.request('/api/notification-methods/push-subscriptions', {
      method: 'DELETE',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({ endpoint: PUSH_ENDPOINT }),
    });

    expect(response.status).toBe(200);
    await expect(response.json()).resolves.toEqual({ ok: true });
  });

  it('does not delete push subscriptions owned by other users or unknown endpoints', async () => {
    mockAuthenticatedUser();
    query.mockImplementationOnce(query.getMockImplementation()).mockImplementationOnce(async (sql, params) => {
      expect(sql).toContain('DELETE FROM notification_methods');
      expect(params).toEqual([USER_ID, PUSH_ENDPOINT]);
      return { rows: [] };
    });

    const app = createApp();
    const response = await app.request('/api/notification-methods/push-subscriptions', {
      method: 'DELETE',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({ endpoint: PUSH_ENDPOINT }),
    });

    expect(response.status).toBe(404);
  });

  it('rejects non-HTTPS push subscription delete endpoints', async () => {
    mockAuthenticatedUser();

    const app = createApp();
    const response = await app.request('/api/notification-methods/push-subscriptions', {
      method: 'DELETE',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({ endpoint: 'http://push.example.com/subscription' }),
    });

    expect(response.status).toBe(400);
    expect(query).toHaveBeenCalledTimes(1);
  });

  it('stores the initial certificate metadata when creating a site', async () => {
    const issuer = 'C = US, O = Example CA, CN = Example Root';
    const issuedAt = new Date('2026-01-01T00:00:00.000Z');
    const expiresAt = new Date('2026-12-31T00:00:00.000Z');
    getCertificateExpiry.mockResolvedValue({ issuer, issuedAt, expiresAt, hoursUntilExpiry: 24 * 30 });
    mockAuthenticatedUser();
    query.mockImplementationOnce(query.getMockImplementation()).mockImplementationOnce(async (sql, params) => {
      expect(sql).toContain('INSERT INTO sites');
      expect(sql).toContain('certificate_issuer');
      expect(sql).toContain('certificate_issued_at');
      expect(sql).toContain('certificate_expires_at');
      expect(sql).toContain('certificate_checked_at');
      expect(params).toEqual([USER_ID, 'https://example.com/', 'Example', issuer, issuedAt, expiresAt]);
      return {
        rows: [
          {
            site_id: SITE_ID,
            url: 'https://example.com/',
            alias: 'Example',
            certificate_issuer: issuer,
            certificate_issued_at: issuedAt.toISOString(),
            certificate_expires_at: expiresAt.toISOString(),
            certificate_checked_at: '2026-05-21T00:00:00.000Z',
            certificate_check_error: null,
            created_at: '2026-05-20T00:00:00.000Z',
            updated_at: '2026-05-21T00:00:00.000Z',
          },
        ],
      };
    });

    const app = createApp();
    const response = await app.request('/api/sites', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({ url: 'https://example.com', alias: 'Example' }),
    });

    expect(response.status).toBe(201);
    expect(getCertificateExpiry).toHaveBeenCalledWith('https://example.com/', {
      timeoutMs: 3000,
    });
    await expect(response.json()).resolves.toMatchObject({
      site: {
        siteId: SITE_ID,
        certificateIssuer: issuer,
        certificateIssuedAt: issuedAt.toISOString(),
        certificateExpiresAt: expiresAt.toISOString(),
      },
    });
  });

  it('rejects site creation when the initial certificate expiry cannot be fetched', async () => {
    getCertificateExpiry.mockRejectedValue(new Error('OpenSSL の実行がタイムアウトしました'));
    mockAuthenticatedUser();

    const app = createApp();
    const response = await app.request('/api/sites', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({ url: 'https://example.com', alias: 'Example' }),
    });

    expect(response.status).toBe(400);
    expect(query).toHaveBeenCalledTimes(1);
    await expect(response.json()).resolves.toMatchObject({
      error: '証明書の期限を取得できませんでした',
      details: {
        reason: 'OpenSSL の実行がタイムアウトしました',
      },
    });
  });

  it('does not mark another user alert as read', async () => {
    mockAuthenticatedUser();
    query.mockImplementationOnce(query.getMockImplementation()).mockImplementationOnce(async (sql, params) => {
      expect(sql).toContain('UPDATE alert_history');
      expect(params).toEqual([USER_ID, ALERT_ID]);
      return { rows: [] };
    });

    const app = createApp();
    const response = await app.request(`/api/alerts/${ALERT_ID}/read`, {
      method: 'PATCH',
      headers: {
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
    });

    expect(response.status).toBe(404);
  });

  it('rejects settings that reference another user webhook', async () => {
    mockAuthenticatedUser();
    query
      .mockImplementationOnce(query.getMockImplementation())
      .mockImplementationOnce(async () => ({
        rows: [
          {
            site_id: SITE_ID,
            url: 'https://example.com/',
            alias: 'Example',
            certificate_issuer: null,
            certificate_issued_at: null,
            certificate_expires_at: null,
            certificate_checked_at: null,
            certificate_check_error: null,
            created_at: '2026-05-20T00:00:00.000Z',
            updated_at: '2026-05-21T00:00:00.000Z',
          },
        ],
      }))
      .mockImplementationOnce(async (sql, params) => {
        expect(sql).toContain('FROM notification_methods');
        expect(params).toEqual([USER_ID, [WEBHOOK_ID]]);
        return { rowCount: 0, rows: [] };
      });

    const app = createApp();
    const response = await app.request(`/api/sites/${SITE_ID}/settings`, {
      method: 'PUT',
      headers: {
        'Content-Type': 'application/json',
        Cookie: csrfCookie(),
        'x-csrf-token': 'csrf-token',
      },
      body: JSON.stringify({
        conditions: [{ thresholdHours: 24 }],
        webhookMethodIds: [WEBHOOK_ID],
        pushEnabled: false,
      }),
    });

    expect(response.status).toBe(400);
    await expect(response.json()).resolves.toMatchObject({
      error: '選択された Webhook が見つかりません',
    });
  });
});