import { paraglideVitePlugin } from '@inlang/paraglide-js';
import devtoolsJson from 'vite-plugin-devtools-json';
import tailwindcss from '@tailwindcss/vite';
import { defineConfig } from 'vitest/config';
import { playwright } from '@vitest/browser-playwright';
import { sveltekit } from '@sveltejs/kit/vite';

export default defineConfig({
	optimizeDeps: {
		include: ['pdfjs-dist', '@tiptap/core', '@tiptap/starter-kit', '@tiptap/extension-mention']
	},
	server: {
		host: '0.0.0.0', // Erlaubt Zugriff von außen
		port: 5173, // Standard SvelteKit Port
		// Proxy für API-Aufrufe während der Entwicklung (Browser -> Vite -> Spring Boot)
		proxy: {
			'/api': {
				target: process.env.API_PROXY_TARGET || 'http://localhost:8080',
				changeOrigin: true,
				// Inject Authorization header from the auth_token cookie so that
				// browser-side fetch('/api/...') calls work the same as SSR fetches
				// (which go through handleFetch in hooks.server.ts).
				configure: (proxy) => {
					proxy.on('proxyReq', (proxyReq, req) => {
						const cookies = req.headers.cookie ?? '';
						const match = cookies.match(/auth_token=([^;]+)/);
						if (match) {
							proxyReq.setHeader('Authorization', decodeURIComponent(match[1]));
						}
					});
				}
			}
		}
	},
	plugins: [
		tailwindcss(),
		sveltekit(),
		devtoolsJson(),
		paraglideVitePlugin({
			project: './project.inlang',
			outdir: './src/lib/paraglide'
		})
	],
	test: {
		expect: { requireAssertions: true },
		coverage: {
			provider: 'v8',
			reporter: ['text', 'lcov'],
			// Measure utility and server-side logic only. Svelte components run
			// in the browser project and are excluded here. Browser-only TS files
			// (actions, hooks, domain-specific UI state) are also excluded.
			// person/ is excluded until relationshipLabels.ts coverage is raised.
			include: [
				'src/lib/shared/utils/**',
				'src/lib/shared/server/**',
				'src/lib/shared/discussion/**',
				'src/lib/document/**'
			],
			exclude: ['**/*.svelte', '**/*.svelte.ts', '**/__mocks__/**'],
			thresholds: {
				branches: 80
			}
		},
		projects: [
			{
				extends: './vite.config.ts',
				test: {
					name: 'client',
					browser: {
						enabled: true,
						provider: playwright(),
						instances: [{ browser: 'chromium', headless: true }],
						screenshotDirectory: 'test-results/screenshots',
						screenshotFailures: true
					},
					include: ['src/**/*.svelte.{test,spec}.{js,ts}'],
					exclude: ['src/lib/server/**']
				}
			},
			{
				extends: './vite.config.ts',
				test: {
					name: 'server',
					environment: 'node',
					include: ['src/**/*.{test,spec}.{js,ts}'],
					exclude: ['src/**/*.svelte.{test,spec}.{js,ts}']
				}
			}
		]
	}
});