import { defineConfig } from 'vite';
import react from '@vitejs/plugin-react';
import path from 'path';
import fs from 'fs';
// SPA fallback middleware - runs after Vite's built-in middleware
function spaFallback() {
    return {
        name: 'spa-fallback',
        configureServer: function (server) {
            // Return a function to execute after Vite's internal middleware
            return function () {
                server.middlewares.use(function (req, res, next) {
                    var _a, _b;
                    // Skip API routes and file requests
                    if (((_a = req.url) === null || _a === void 0 ? void 0 : _a.startsWith('/api')) || ((_b = req.url) === null || _b === void 0 ? void 0 : _b.includes('.'))) {
                        return next();
                    }
                    // Serve index.html for SPA routes
                    var indexPath = path.resolve(__dirname, 'index.html');
                    if (fs.existsSync(indexPath)) {
                        res.statusCode = 200;
                        res.setHeader('Content-Type', 'text/html');
                        var html = fs.readFileSync(indexPath, 'utf-8');
                        server.transformIndexHtml(req.url || '/', html).then(function (transformed) {
                            res.end(transformed);
                        }).catch(next);
                    }
                    else {
                        next();
                    }
                });
            };
        },
        configurePreviewServer: function (server) {
            // Same logic for preview server
            server.middlewares.use(function (req, res, next) {
                var _a, _b;
                if (((_a = req.url) === null || _a === void 0 ? void 0 : _a.startsWith('/api')) || ((_b = req.url) === null || _b === void 0 ? void 0 : _b.includes('.'))) {
                    return next();
                }
                var indexPath = path.resolve(__dirname, 'dist/client/index.html');
                if (fs.existsSync(indexPath)) {
                    res.statusCode = 200;
                    res.setHeader('Content-Type', 'text/html');
                    res.end(fs.readFileSync(indexPath, 'utf-8'));
                }
                else {
                    next();
                }
            });
        }
    };
}
export default defineConfig({
    plugins: [react(), spaFallback()],
    root: '.',
    publicDir: 'public',
    build: {
        outDir: 'dist/client',
    },
    server: {
        host: '0.0.0.0',
        proxy: {
            '/api': {
                target: 'http://localhost:3000',
                changeOrigin: true,
            },
        },
    },
    preview: {
        host: '0.0.0.0',
    },
    resolve: {
        alias: {
            '@': path.resolve(__dirname, 'src/client'),
            '@shared': path.resolve(__dirname, 'src/shared'),
        },
    },
});