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

/**
 * Playwright configuration.
 *
 * Tests run against the Vite dev server with the mock API enabled, so they
 * don't require Django to be running. Each test gets an isolated user session
 * via the `storageState` reset in globalSetup (implicit: every test starts
 * with a blank context).
 *
 * Run:
 *   npx playwright install chromium   # first time only — installs browsers
 *   npm run test:e2e                  # headless
 *   npm run test:e2e:headed           # opens a browser
 *   npm run test:e2e:ui               # Playwright UI mode
 */
export default defineConfig({
	testDir: './tests/e2e',
	timeout: 30_000,
	expect: { timeout: 5_000 },
	fullyParallel: false, // the mock plugin writes to shared JSON files on disk
	workers: 1,
	forbidOnly: !!process.env.CI,
	retries: process.env.CI ? 1 : 0,
	reporter: [['list'], ['html', { open: 'never' }]],
	use: {
		baseURL: 'http://127.0.0.1:5173',
		trace: 'retain-on-failure',
		video: 'retain-on-failure',
		screenshot: 'only-on-failure',
	},
	projects: [
		{
			name: 'chromium',
			use: { ...devices['Desktop Chrome'] },
		},
	],
	webServer: {
		command: 'npm run dev -- --port 5173 --strictPort',
		url: 'http://127.0.0.1:5173',
		reuseExistingServer: !process.env.CI,
		timeout: 60_000,
		env: {
			VITE_USE_MOCK_API: 'true',
			VITE_API_BASE_URL: '/api',
		},
	},
});