import {
    defineConfig,
    devices,
} from '@playwright/test';

/**
 * E2E config. Tests run against the production build via `vite preview` on port 4173.
 * Locally: all three browser engines run in parallel.
 * CI: chromium only, workers=1 — the runner has 6GB RAM and `yarn build` already
 * spikes 1–2GB, so we keep the E2E peak bounded.
 */
const isCI = !!process.env.CI;

export default defineConfig({
    testDir: 'e2e',
    testMatch: /.*\.test\.ts$/,

    fullyParallel: true,
    forbidOnly: isCI,
    retries: isCI ? 2 : 0,
    workers: isCI ? 1 : undefined,

    reporter: isCI
        ? [['html', { open: 'never' }], ['github']]
        : [['html', { open: 'on-failure' }], ['list']],

    use: {
        baseURL: 'http://localhost:4173',
        trace: 'on-first-retry',
        screenshot: 'only-on-failure',
        video: 'retain-on-failure',
    },

    projects: isCI
        ? [{ name: 'chromium', use: { ...devices['Desktop Chrome'] } }]
        : [
            {
                name: 'chromium',
                use: {
                    ...devices['Desktop Chrome'],
                },
            },
            {
                name: 'firefox',
                use: { ...devices['Desktop Firefox'] },
            },
        ],
    webServer: {
        command: 'yarn build && yarn preview',
        port: 4173,
        reuseExistingServer: !isCI,
        timeout: 120_000,
    },
});