import { paraglideVitePlugin } from '@inlang/paraglide-js';
import tailwindcss from '@tailwindcss/vite';
import adapter from '@sveltejs/adapter-node';
import { sveltekit } from '@sveltejs/kit/vite';
import { defineConfig } from 'vite';

export default defineConfig({
	plugins: [
		tailwindcss(),
		paraglideVitePlugin({
			project: './project.inlang',
			outdir: './src/lib/paraglide',
			// Order is the precedence. The account setting wins, because a
			// language a person chose should follow them to every device; the
			// cookie keeps that decision available before /me has answered;
			// the browser's Accept-Language is the first-contact guess; the
			// base locale is the floor. No `url` strategy: Pablan is one
			// installation for one company, so /de/ path prefixes would buy
			// nothing and break every existing link.
			strategy: ['custom-userPreference', 'cookie', 'preferredLanguage', 'baseLocale'],
			// A missing translation must fail the build, never fall back
			// silently to another language (see scripts/check-messages.py).
			experimentalMiddlewareLocaleSplitting: false
		}),
		sveltekit({
			compilerOptions: {
				// Force runes mode for the project, except for libraries. Can be removed in svelte 6.
				runes: ({ filename }) =>
					filename.split(/[/\\]/).includes('node_modules') ? undefined : true
			},

			adapter: adapter()
		})
	],

	server: {
		// Dev-only same-origin setup: /api goes to the native FastAPI process.
		// In production the reverse proxy does this (see deploy/).
		proxy: {
			'/api': 'http://localhost:8000'
		}
	}
});