const express = require('express');
const cors = require('cors');
const mongoose = require('mongoose');

const app = express();
const port = process.env.PORT || 5000;

app.use(cors({
  origin: '*', // Allow all origins for development
  methods: ['GET', 'POST', 'PUT', 'DELETE'], // Allow common HTTP methods
  allowedHeaders: ['Content-Type', 'Authorization'] // Allow common headers
}));
app.use(express.json());
app.use('/uploads', express.static('uploads'));

// MongoDB Connection
const uri = process.env.MONGO_URI || 'mongodb://localhost:27017/photogallery';
mongoose.connect(uri, { useNewUrlParser: true, useUnifiedTopology: true });
const connection = mongoose.connection;
connection.once('open', () => {
  console.log("MongoDB database connection established successfully");
})

// API Routes
const photosRouter = require('./routes/photos');
app.use('/photos', photosRouter);

app.listen(port, () => {
  console.log(`Server is running on port: ${port}`);
});