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

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

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

const PORT = getEnv('PORT', PORTS.ORCHESTRATION);
const MEMORY_URL    = getEnv('MEMORY_SERVICE_URL', SERVICES.MEMORY_URL);
const EMBEDDING_URL = getEnv('EMBEDDING_SERVICE_URL', SERVICES.EMBEDDING_URL);
const INFERENCE_URL = getEnv('INFERENCE_SERVICE_URL', SERVICES.INFERENCE_URL);

// Health check endpoint
app.get('/health', (req, res) => {
    res.json({ 
        service:            'Orchestration Service', 
        status:             'healthy',
        memoryService:      MEMORY_URL,
        embeddingService:   EMBEDDING_URL,
        inferenceService:   INFERENCE_URL,
    });
});

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

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