#!/usr/bin/env node

const http = require('http');
const fs = require('fs');

const PORT = 9876;
const LOG_FILE = '/tmp/clawdnode-debug.log';

// Open log file
const logStream = fs.createWriteStream(LOG_FILE, { flags: 'a' });

function log(msg) {
    const ts = new Date().toISOString();
    const line = `[${ts}] ${msg}`;
    console.log(line);
    logStream.write(line + '\n');
}

function parseBody(req) {
    return new Promise((resolve) => {
        let body = '';
        req.on('data', chunk => body += chunk);
        req.on('end', () => {
            try {
                resolve(JSON.parse(body || '{}'));
            } catch {
                resolve({ raw: body });
            }
        });
    });
}

const server = http.createServer(async (req, res) => {
    const body = await parseBody(req);
    
    res.setHeader('Content-Type', 'application/json');
    res.setHeader('Access-Control-Allow-Origin', '*');
    
    if (req.method === 'OPTIONS') {
        res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS');
        res.setHeader('Access-Control-Allow-Headers', 'Content-Type');
        res.end();
        return;
    }

    const ip = req.socket.remoteAddress;
    
    switch (req.url) {
        case '/health':
            res.end(JSON.stringify({ status: 'ok', time: new Date().toISOString() }));
            break;
            
        case '/log':
            log(`📋 [LOG] from ${ip}: ${JSON.stringify(body)}`);
            res.end(JSON.stringify({ status: 'logged' }));
            break;
            
        case '/notification':
            log(`🔔 [NOTIFICATION] from ${ip}:`);
            log(`   App: ${body.app || body.packageName}`);
            log(`   Title: ${body.title}`);
            log(`   Text: ${body.text}`);
            log(`   Package: ${body.package || body.packageName}`);
            log(`   Actions: ${JSON.stringify(body.actions || [])}`);
            log(`   Full: ${JSON.stringify(body)}`);
            res.end(JSON.stringify({ status: 'received', id: body.id }));
            break;
            
        case '/call':
            log(`📞 [CALL] from ${ip}:`);
            log(`   Number: ${body.number}`);
            log(`   Contact: ${body.contact}`);
            log(`   State: ${body.state}`);
            log(`   Full: ${JSON.stringify(body)}`);
            res.end(JSON.stringify({ status: 'received' }));
            break;
            
        case '/event':
            log(`⚡ [EVENT:${body.type}] from ${ip}: ${JSON.stringify(body)}`);
            res.end(JSON.stringify({ status: 'received' }));
            break;
            
        case '/error':
            log(`❌ [ERROR] from ${ip}: ${JSON.stringify(body)}`);
            res.end(JSON.stringify({ status: 'logged' }));
            break;
            
        case '/lifecycle':
            log(`🔄 [LIFECYCLE:${body.event}] from ${ip}: ${body.message || ''}`);
            res.end(JSON.stringify({ status: 'logged' }));
            break;
            
        default:
            log(`[${req.method}] ${req.url} from ${ip}`);
            res.end(JSON.stringify({ 
                status: 'ok',
                endpoints: ['/health', '/log', '/notification', '/call', '/event', '/error', '/lifecycle']
            }));
    }
});

server.listen(PORT, '0.0.0.0', () => {
    log(`🚀 ClawdNode Debug Server starting on :${PORT}`);
    log(`📝 Logging to ${LOG_FILE}`);
    log(`🌐 Accessible at http://100.123.216.65:${PORT} (Tailscale)`);
});