const https = require('https');
const { URL } = require('url');

const REMOTE_URL = 'https://git.aotoagent.com/mcp';
const TOKEN = 'gitea-mcp-token-2026';

let sessionId = null;

async function sendRequest(body) {
    return new Promise((resolve, reject) => {
        const url = new URL(REMOTE_URL);
        const data = JSON.stringify(body);
        
        const options = {
            hostname: url.hostname,
            port: url.port || 443,
            path: url.pathname,
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
                'Accept': 'application/json, text/event-stream',
                'Authorization': `Bearer ${TOKEN}`,
                'Content-Length': Buffer.byteLength(data)
            }
        };
        
        if (sessionId) {
            options.headers['Mcp-Session-Id'] = sessionId;
        }
        
        const req = https.request(options, (res) => {
            let body = '';
            res.on('data', (chunk) => body += chunk);
            res.on('end', () => {
                if (res.headers['mcp-session-id']) {
                    sessionId = res.headers['mcp-session-id'];
                }
                resolve(body);
            });
        });
        
        req.on('error', reject);
        req.write(data);
        req.end();
    });
}

async function main() {
    let buffer = '';
    
    process.stdin.on('data', async (chunk) => {
        buffer += chunk.toString();
        
        // Process complete lines
        while (buffer.includes('\n')) {
            const newlineIndex = buffer.indexOf('\n');
            const line = buffer.substring(0, newlineIndex).trim();
            buffer = buffer.substring(newlineIndex + 1);
            
            if (!line) continue;
            
            try {
                const request = JSON.parse(line);
                const response = await sendRequest(request);
                
                // Handle SSE format
                if (response.startsWith('event:')) {
                    const lines = response.split('\n');
                    for (const l of lines) {
                        if (l.startsWith('data:')) {
                            process.stdout.write(l.substring(5).trim() + '\n');
                        }
                    }
                } else if (response.trim()) {
                    process.stdout.write(response + '\n');
                }
            } catch (e) {
                process.stderr.write(`Error: ${e.message}\n`);
            }
        }
    });
    
    process.stdin.on('end', () => {
        // Process any remaining buffer
        if (buffer.trim()) {
            try {
                const request = JSON.parse(buffer.trim());
                sendRequest(request).then(response => {
                    if (response.startsWith('event:')) {
                        const lines = response.split('\n');
                        for (const l of lines) {
                            if (l.startsWith('data:')) {
                                process.stdout.write(l.substring(5).trim() + '\n');
                            }
                        }
                    } else if (response.trim()) {
                        process.stdout.write(response + '\n');
                    }
                });
            } catch (e) {
                process.stderr.write(`Error: ${e.message}\n`);
            }
        }
    });
}

main();