import dotenv from 'dotenv';

dotenv.config();

export const config = {
  env: process.env.NODE_ENV || 'development',
  port: process.env.PORT || 3010,
  
  mongodb: {
    uri: process.env.MONGODB_URI || 'mongodb://localhost:27017/billing'
  },
  
  stripe: {
    secretKey: process.env.STRIPE_SECRET_KEY || 'sk_test_...',
    publishableKey: process.env.STRIPE_PUBLISHABLE_KEY || 'pk_test_...',
    webhookSecret: process.env.STRIPE_WEBHOOK_SECRET || 'whsec_...'
  },
  
  jwt: {
    secret: process.env.JWT_SECRET || 'your-secret-key',
    expiresIn: '7d'
  },
  
  redis: {
    url: process.env.REDIS_URL || 'redis://localhost:6379'
  },
  
  email: {
    provider: process.env.EMAIL_PROVIDER || 'sendgrid',
    apiKey: process.env.EMAIL_API_KEY || '',
    from: process.env.EMAIL_FROM || 'billing@company.com'
  },
  
  cors: {
    origin: process.env.CORS_ORIGIN?.split(',') || ['http://localhost:8080'],
    credentials: true
  },
  
  rateLimit: {
    windowMs: 15 * 60 * 1000, // 15 minutes
    max: 100 // limit each IP to 100 requests per windowMs
  },
  
  billing: {
    currency: 'USD',
    taxRate: 0, // Default tax rate percentage
    trialDays: 14,
    gracePeriodDays: 7,
    dunningAttempts: 3,
    dunningIntervalDays: 3
  },
  
  plans: {
    free: {
      name: 'Free',
      price: 0,
      features: {
        users: 5,
        campaigns: 10,
        messagesPerMonth: 1000
      }
    },
    starter: {
      name: 'Starter',
      price: 29,
      stripePriceId: 'price_starter_monthly',
      features: {
        users: 20,
        campaigns: 50,
        messagesPerMonth: 10000
      }
    },
    professional: {
      name: 'Professional',
      price: 99,
      stripePriceId: 'price_professional_monthly',
      features: {
        users: 100,
        campaigns: 'unlimited',
        messagesPerMonth: 100000
      }
    },
    enterprise: {
      name: 'Enterprise',
      price: 299,
      stripePriceId: 'price_enterprise_monthly',
      features: {
        users: 'unlimited',
        campaigns: 'unlimited',
        messagesPerMonth: 'unlimited'
      }
    }
  }
};