import { defineConfig, devices } from '@playwright/test';
import { existsSync } from 'node:fs';
import { dirname, resolve } from 'node:path';
import { fileURLToPath } from 'node:url';

const frontendPort = process.env.PLAYWRIGHT_FRONTEND_PORT ?? '3100';
const backendPort = process.env.PLAYWRIGHT_BACKEND_PORT ?? '4100';
const baseURL = `http://127.0.0.1:${frontendPort}`;
const graphqlURL = `http://127.0.0.1:${backendPort}/graphql`;
const skipWebServer = process.env.PW_SKIP_WEBSERVER === 'true';
const isStatefulRun = process.env.PLAYWRIGHT_STATEFUL === 'true';
const useBuiltFrontend = process.env.PLAYWRIGHT_USE_BUILT_FRONTEND === 'true';
const repoRoot = dirname(fileURLToPath(import.meta.url));
const backendCandidates = [
  resolve(repoRoot, 'gennit-backend'),
  resolve(repoRoot, '../gennit-backend'),
  resolve(repoRoot, '../../gennit-backend'),
];
const backendRoot =
  process.env.PLAYWRIGHT_BACKEND_CWD ??
  backendCandidates.find((candidate) => existsSync(candidate)) ??
  backendCandidates[0];

const webServers = [
  ...(isStatefulRun
    ? [
        {
          name: 'backend',
          command: 'node ./ts_emitted/index.js',
          cwd: backendRoot,
          env: {
            AUTH0_CLIENT_ID:
              process.env.AUTH0_CLIENT_ID ?? 'playwright-test-client',
            AUTH0_DOMAIN: process.env.AUTH0_DOMAIN ?? 'example.com',
            CYPRESS_ADMIN_TEST_EMAIL:
              process.env.CYPRESS_ADMIN_TEST_EMAIL ??
              'catherine.luse@gmail.com',
            CYPRESS_ADMIN_TEST_USERNAME:
              process.env.CYPRESS_ADMIN_TEST_USERNAME ?? 'cluse',
            NEO4J_PASSWORD:
              process.env.NEO4J_PASSWORD ?? 'playwright-ci-password',
            NEO4J_URI: process.env.NEO4J_URI ?? 'bolt://127.0.0.1:7688',
            NEO4J_USER: process.env.NEO4J_USER ?? 'neo4j',
            E2E_MOCK_AUTH: 'true',
            NODE_ENV: 'development',
            GOOGLE_CREDENTIALS_BASE64: '',
            MULTIFORUM_AUTH_PROVIDER: 'local-dev',
            MULTIFORUM_AUTO_PROVISION: 'true',
            MULTIFORUM_BOOTSTRAP_EMAIL: 'catherine.luse@gmail.com',
            MULTIFORUM_BOOTSTRAP_PASSWORD: 'playwright-local-password',
            MULTIFORUM_BOOTSTRAP_USERNAME: 'cluse',
            PLAYWRIGHT_MOCK_AUTH: 'true',
            PORT: backendPort,
            SERVER_CONFIG_NAME: 'Playwright Test Server',
            SUPERADMIN_EMAIL: 'catherine.luse@gmail.com',
          },
          url: `http://127.0.0.1:${backendPort}`,
          reuseExistingServer: true,
          timeout: 120_000,
        },
      ]
    : []),
  {
    name: 'frontend',
    // CI serves the prebuilt node artifact so cold Nuxt compilation cannot
    // consume the web-server readiness window. Local runs retain fast HMR.
    command: useBuiltFrontend
      ? 'node .output/server/index.mjs'
      : isStatefulRun
        ? `NODE_OPTIONS='--max-old-space-size=4096' pnpm exec nuxt dev --host 127.0.0.1 --port ${frontendPort}`
        : `pnpm exec nuxt dev --host 127.0.0.1 --port ${frontendPort}`,
    env: {
      NITRO_HOST: '127.0.0.1',
      NITRO_PORT: frontendPort,
      NUXT_BACKEND_GRAPHQL_URL: graphqlURL,
      NUXT_PUBLIC_AUTH_PROVIDER: 'local-dev',
      VITE_E2E_MOCK_MODE: 'true',
      VITE_GRAPHQL_URL: graphqlURL,
      VITE_SERVER_NAME: 'Playwright Test Server',
    },
    url: baseURL,
    reuseExistingServer: true,
    timeout: 120_000,
  },
];

export default defineConfig({
  testDir: './tests/playwright',
  // Increase timeout for stateful tests that need database reset
  timeout: isStatefulRun ? 180_000 : 60_000,
  // Retry failed stateful tests once to handle transient infrastructure issues
  retries: isStatefulRun ? 1 : 0,
  workers: 1,
  expect: {
    timeout: 30_000,
  },
  fullyParallel: false,
  reporter: [['list'], ['html', { open: 'never' }]],
  use: {
    baseURL,
    trace: 'retain-on-failure',
    screenshot: 'only-on-failure',
    video: 'retain-on-failure',
    headless: true,
  },
  webServer: skipWebServer ? undefined : webServers,
  projects: [
    {
      name: 'chromium',
      use: {
        ...devices['Desktop Chrome'],
      },
    },
  ],
});