import * as http from 'node:http';
import * as fs from 'node:fs';
import sirv from 'sirv';
export function createServer(options) {
    let currentManifest = options.manifest;
    let currentFileMapping = options.fileMapping;
    const staticHandler = sirv(options.bundlePath, { single: true });
    const requestHandler = (req, res) => {
        const url = req.url || '/';
        const method = req.method || 'GET';
        // Route 1: GET /dashboard-manifest.json
        if (method === 'GET' && url === '/dashboard-manifest.json') {
            const body = JSON.stringify(currentManifest);
            res.writeHead(200, {
                'Content-Type': 'application/json',
                'Content-Length': Buffer.byteLength(body),
            });
            res.end(body);
            return;
        }
        // Route 2: GET /dashboards/{dirName}/{fileName}
        if (method === 'GET' && url.startsWith('/dashboards/')) {
            const pathSegment = url.slice('/dashboards/'.length);
            const absolutePath = currentFileMapping[pathSegment];
            if (!absolutePath) {
                res.writeHead(404, { 'Content-Type': 'application/json' });
                res.end(JSON.stringify({ error: 'Not found' }));
                return;
            }
            try {
                const content = fs.readFileSync(absolutePath, 'utf-8');
                res.writeHead(200, {
                    'Content-Type': 'application/json',
                    'Content-Length': Buffer.byteLength(content),
                });
                res.end(content);
            }
            catch {
                res.writeHead(404, { 'Content-Type': 'application/json' });
                res.end(JSON.stringify({ error: 'Not found' }));
            }
            return;
        }
        // Route 3: All other paths → delegate to sirv static handler
        staticHandler(req, res);
    };
    const server = http.createServer(requestHandler);
    return {
        start() {
            return new Promise((resolve, reject) => {
                const onError = (err) => {
                    if (err.code === 'EADDRINUSE') {
                        reject(new Error(`Port ${options.port} is already in use`));
                    }
                    else {
                        reject(err);
                    }
                };
                server.once('error', onError);
                server.listen(options.port, () => {
                    server.removeListener('error', onError);
                    resolve();
                });
            });
        },
        stop() {
            return new Promise((resolve, reject) => {
                server.close((err) => {
                    if (err) {
                        reject(err);
                    }
                    else {
                        resolve();
                    }
                });
            });
        },
        updateManifest(manifest, fileMapping) {
            currentManifest = manifest;
            currentFileMapping = fileMapping;
        },
    };
}