const express = require('express');
const cors = require('cors');
const bodyParser = require('body-parser');
const authRoutes = require('./routes/authRoutes');
const dataRoutes = require('./routes/dataRoutes');
const stockRoutes = require('./routes/stockRoutes');
const campaignRoutes = require('./routes/campaignRoutes');
const internalRoutes = require('./routes/internalRoutes');
const analyticsRoutes = require('./routes/analyticsRoutes');
const userRoutes = require('./routes/userRoutes');
const productionOrderRoutes = require('./routes/productionOrderRoutes');
const cuttingSettingsRoutes = require('./routes/cuttingSettingsRoutes');
const catalogRoutes = require('./routes/catalogRoutes');
const supplyRoutes = require('./routes/supplyRoutes');

const createApp = () => {
    const app = express();

    app.use(cors());
    app.use(bodyParser.json());

    app.use('/api', authRoutes);
    app.use('/api', dataRoutes);
    app.use('/api', stockRoutes);
    app.use('/api', campaignRoutes);
    app.use('/api', productionOrderRoutes);
    app.use('/api', cuttingSettingsRoutes);
    app.use('/api', catalogRoutes);
    app.use('/api', supplyRoutes);
    app.use('/api', analyticsRoutes);
    app.use('/api', userRoutes);
    app.use('/api/internal', internalRoutes);

    app.use((err, req, res, next) => {
        if (res.headersSent) {
            next(err);
            return;
        }

        const statusCode = err.statusCode || 500;
        if (statusCode >= 500) {
            console.error(err);
        }

        res.status(statusCode).json({
            error: err.message || 'Internal server error'
        });
    });

    return app;
};

module.exports = {
    createApp
};