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

// E2E runs against the dev stack: postgres + backend must be up and seeded
// (make dev / make seed); the vite dev server is reused or started here.
export default defineConfig({
	testDir: 'e2e',
	globalSetup: './e2e/global-setup.ts',
	globalTeardown: './e2e/global-teardown.ts',
	// One worker: every spec drives the same seeded user against one local
	// LLM, so parallel specs delete each other's in-flight conversations
	// (and queue behind the same model anyway).
	workers: 1,
	use: {
		baseURL: 'http://localhost:5173',
		// The specs assert English copy, so the language the interface picks
		// has to be pinned rather than inherited from whatever the machine
		// running the suite happens to send. Accept-Language is the strategy
		// that applies to a visitor with no account preference and no cookie.
		// A seeded user who HAS picked a language keeps it (that is the product
		// rule), so anything that runs as such a user selects by testid.
		locale: 'en-US',
		extraHTTPHeaders: { 'Accept-Language': 'en-US,en;q=0.9' }
	},
	projects: [{ name: 'chromium', use: { ...devices['Desktop Chrome'] } }],
	webServer: {
		command: 'npm run dev',
		port: 5173,
		reuseExistingServer: true
	}
});