const express = require('express');
const cors = require('cors');
const path = require('path');
require('dotenv').config();
require('dotenv').config({ path: path.join(__dirname, '../.env') });

// Initialize database connection (auto-creates schema)
require('./database/db');

// Migration runner
const { runMigrations } = require('./database/runMigrations');

const app = express();
const PORT = process.env.PORT || 5001;

// Middleware
app.use(
  cors({
    origin: ['http://localhost:3000', 'http://localhost:5173', 'http://localhost:3001', 'http://localhost:5002', '*'],
    credentials: true,
  })
);
app.use(express.json());

// Request logging middleware
app.use((req, res, next) => {
  next();
});

// Routes
const cyclesRouter = require('./routes/cycles');
const mortalityRouter = require('./routes/mortality');
const chickenCountsRouter = require('./routes/chickenCounts');
const apiKeysRouter = require('./routes/apiKeys');
const kandangsRouter = require('./routes/kandangs');
const feedSackColumnConfigRouter = require('./routes/feedSackColumnConfig');
const manualFeedSackRouter = require('./routes/manualFeedSack');
const cycleFeedInitialBalanceRouter = require('./routes/cycleFeedInitialBalance');
const auditLogsRouter = require('./routes/auditLogs');
const aiInsightsRouter = require('./routes/aiInsights');

app.use('/api/cycles', cyclesRouter);
app.use('/api/mortality', mortalityRouter);
app.use('/api/chicken-counting', chickenCountsRouter);
app.use('/api/admin/api-keys', apiKeysRouter);
app.use('/api/kandangs', kandangsRouter);
app.use('/api/feed-sack-column-config', feedSackColumnConfigRouter);
app.use('/api/manual-feed-sack', manualFeedSackRouter);
app.use('/api/cycle-feed-initial-balance', cycleFeedInitialBalanceRouter);
app.use('/api/audit-logs', auditLogsRouter);
app.use('/api/ai-insights', aiInsightsRouter);

// Health check endpoint
app.get('/health', (req, res) => {
  res.json({ status: 'ok', timestamp: new Date().toISOString(), database: 'postgresql' });
});

// 404 handler
app.use((req, res) => {
  res.status(404).json({ success: false, error: 'Route not found' });
});

// Error handling middleware (MUST be last)
const { errorHandler } = require('./middleware/errorHandler');
app.use(errorHandler);

// Start server with migrations
async function startServer() {
  try {
    // Run database migrations first
    await runMigrations();

    // Then start the server
    app.listen(PORT, () => {});
  } catch (error) {
    console.error('❌ Failed to start server due to migration error');
    console.error(error);
    process.exit(1);
  }
}

// Start the server
startServer();