require ('dotenv').config();
const express = require('express');
const {getEnv} = require('@nexusai/shared');
const chatRouter = require('./routes/chat');
const sessionsRouter = require('./routes/sessions');
const cors = require('cors');

const app = express();
app.use(express.json());

const PORT = getEnv('PORT', '4000');  // Default to 4000 if PORT is not set

app.use(cors({
    origin: [
        getEnv('CORS_ORIGIN', 'http://localhost:5173'),
        'http://localhost:5173',
    ],
    methods: ['GET', 'POST', 'DELETE'],
    allowedHeaders: ['Content-Type'],
}))

// Health check endpoint
app.get('/health', (req, res) => {
    res.json({ 
        service: 'Orchestration Service', 
        status: 'healthy',
        memoryService: getEnv('MEMORY_SERVICE_URL', 'http://localhost:3002'),
        embeddingService: getEnv('EMBEDDING_SERVICE_URL', 'http://localhost:3003'),
        inferenceService: getEnv('INFERENCE_SERVICE_URL', 'http://localhost:3001'),
    });
});

app.use('/chat', chatRouter);
app.use('/sessions', sessionsRouter);

/******* Start the server ************/
app.listen(PORT, () => {
    console.log(`Orchestration Service is running on port ${PORT}`);
});