import { createRevenue } from '@classytic/revenue';
import { ManualProvider } from '@classytic/revenue-manual';

const revenue = createRevenue({
  models: { Transaction },
  providers: { manual: new ManualProvider() },
});

// Create subscription (no organizationId needed)
const { transaction } = await revenue.monetization.create({
  data: { customerId: user._id },
  planKey: 'monthly',
  monetizationType: 'subscription',
  amount: 2999,  // $29.99
  gateway: 'manual',
  paymentData: { method: 'card' },
});

// Verify → Refund
await revenue.payments.verify(transaction.gateway.paymentIntentId);

// Same API, just pass organizationId
const { transaction } = await revenue.monetization.create({
  data: {
    organizationId: vendor._id,  // ← Multi-tenant
    customerId: customer._id,
    referenceId: order._id,
    referenceModel: 'Order',
  },
  planKey: 'one_time',
  monetizationType: 'purchase',  // One-time purchase
  amount: 1500,
  gateway: 'manual',
  paymentData: { method: 'bkash' },
});

import mongoose from 'mongoose';
import {
  TRANSACTION_TYPE_VALUES,
  TRANSACTION_STATUS_VALUES,
} from '@classytic/revenue/enums';
import {
  gatewaySchema,
  paymentDetailsSchema,
} from '@classytic/revenue/schemas';

const transactionSchema = new mongoose.Schema({
  // ============ REQUIRED BY LIBRARY ============
  amount: { type: Number, required: true, min: 0 },
  type: { type: String, enum: TRANSACTION_TYPE_VALUES, required: true },  // 'income' | 'expense'
  method: { type: String, required: true },  // 'manual' | 'bkash' | 'card' | etc.
  status: { type: String, enum: TRANSACTION_STATUS_VALUES, required: true },
  category: { type: String, required: true },  // Your custom categories
  
  // ============ MULTI-TENANT (optional) ============
  organizationId: { type: String, index: true },  // For multi-tenant platforms

  // ============ LIBRARY SCHEMAS (nested) ============
  gateway: gatewaySchema,              // Payment gateway details
  paymentDetails: paymentDetailsSchema, // Payment info (wallet, bank, etc.)

  // ============ POLYMORPHIC REFERENCE (recommended) ============
  // Links transaction to any entity (Order, Subscription, Enrollment, etc.)
  referenceId: {
    type: mongoose.Schema.Types.ObjectId,
    refPath: 'referenceModel',
  },
  referenceModel: {
    type: String,
    enum: ['Subscription', 'Order', 'Enrollment', 'Membership'], // Your models
  },

  // ============ YOUR CUSTOM FIELDS ============
  customerId: String,
  currency: { type: String, default: 'BDT' },
  verifiedAt: Date,
  verifiedBy: mongoose.Schema.Types.ObjectId,
  refundedAmount: Number,
  idempotencyKey: { type: String, unique: true, sparse: true },
  metadata: mongoose.Schema.Types.Mixed,
}, { timestamps: true });

export default mongoose.model('Transaction', transactionSchema);

import { gatewaySchema } from '@classytic/revenue/schemas';

const schema = new mongoose.Schema({
  gateway: gatewaySchema,  // ✅ Correct - nested
  // ...gatewaySchema,     // ❌ Wrong - don't spread
});

// Create subscription
const { subscription, transaction, paymentIntent } = 
  await revenue.monetization.create({
    data: { organizationId, customerId },
    planKey: 'monthly',
    amount: 1500,
    currency: 'BDT',
    gateway: 'manual',
    paymentData: { method: 'bkash', walletNumber: '01712345678' },
  });

// Verify and activate
await revenue.payments.verify(transaction.gateway.paymentIntentId);
await revenue.monetization.activate(subscription._id);

// Renew subscription
await revenue.monetization.renew(subscription._id, {
  gateway: 'manual',
  paymentData: { method: 'nagad' },
});

// Pause/Resume
await revenue.monetization.pause(subscription._id, { reason: 'Customer request' });
await revenue.monetization.resume(subscription._id, { extendPeriod: true });

// Cancel
await revenue.monetization.cancel(subscription._id, { immediate: true });

// Verify payment (admin approval for manual)
const { transaction } = await revenue.payments.verify(paymentIntentId, {
  verifiedBy: adminUserId,
});

// Get payment status
const { status } = await revenue.payments.getStatus(paymentIntentId);

// Refund (creates separate EXPENSE transaction)
const { transaction, refundTransaction } = await revenue.payments.refund(
  transactionId,
  500,  // Amount or null for full refund
  { reason: 'Customer requested' }
);

// Handle webhook (for automated providers like Stripe)
const { event, transaction } = await revenue.payments.handleWebhook(
  'stripe',
  webhookPayload,
  headers
);

// Get transaction by ID
const transaction = await revenue.transactions.get(transactionId);

// List with filters
const { transactions, total } = await revenue.transactions.list(
  { type: 'income', status: 'verified' },
  { limit: 50, sort: { createdAt: -1 } }
);

// Calculate net revenue
const income = await revenue.transactions.list({ type: 'income' });
const expense = await revenue.transactions.list({ type: 'expense' });
const netRevenue = income.total - expense.total;

const revenue = createRevenue({
  models: { Transaction },
  config: {
    transactionTypeMapping: {
      subscription: 'income',
      purchase: 'income',
      refund: 'expense',  // Refunds create separate expense transactions
    },
  },
});

const revenue = createRevenue({
  models: { Transaction },
  config: {
    categoryMappings: {
      Order: 'order_subscription',
      PlatformSubscription: 'platform_subscription',
      Membership: 'gym_membership',
      Enrollment: 'course_enrollment',
    },
  },
});

// Usage
await revenue.monetization.create({
  entity: 'Order',  // Maps to 'order_subscription' category
  monetizationType: 'subscription',
  // ...
});

const revenue = createRevenue({
  models: { Transaction },
  config: {
    // Commission rates by category
    commissionRates: {
      'product_order': 0.10,     // 10% platform commission
      'course_enrollment': 0.10, // 10% on courses
      'gym_membership': 0,       // No commission
    },
    
    // Gateway fees (deducted from commission)
    gatewayFeeRates: {
      'stripe': 0.029,    // 2.9% Stripe fee
      'bkash': 0.018,     // 1.8% bKash fee
      'manual': 0,        // No fee
    },
  },
});

// Commission calculated automatically
const { transaction } = await revenue.monetization.create({
  amount: 10000, // $100
  entity: 'ProductOrder',  // → 10% commission
  gateway: 'stripe',       // → 2.9% fee
});

console.log(transaction.commission);
// {
//   rate: 0.10,
//   grossAmount: 1000,      // $10 (10% of $100)
//   gatewayFeeAmount: 290,  // $2.90 (2.9% of $100)
//   netAmount: 710,         // $7.10 (platform keeps)
//   status: 'pending'
// }

// Query pending commissions
const pending = await Transaction.find({ 'commission.status': 'pending' });

import {
  // Period calculation
  calculatePeriodRange,
  calculateProratedAmount,
  addDuration,
  
  // Action eligibility
  canRenewSubscription,
  canPauseSubscription,
  isSubscriptionActive,
} from '@classytic/revenue/utils';

// Calculate period
const { startDate, endDate } = calculatePeriodRange({
  duration: 30,
  unit: 'days',
});

// Calculate prorated refund
const refund = calculateProratedAmount({
  amountPaid: 1500,
  startDate: sub.startDate,
  endDate: sub.endDate,
  asOfDate: new Date(),
});

// Check eligibility
if (canRenewSubscription(membership)) {
  await revenue.monetization.renew(membership.subscriptionId);
}

// 1. Customer makes purchase
const { transaction } = await revenue.monetization.create({
  amount: 1000,
  gateway: 'stripe',
  // ...
});

// 2. Verify payment
await revenue.payments.verify(transaction._id);

// 3. Hold in escrow
await revenue.escrow.hold(transaction._id);

// 4. Split to multiple recipients
await revenue.escrow.split(transaction._id, [
  { type: 'platform_commission', recipientId: 'platform', rate: 0.10 },
  { type: 'affiliate_commission', recipientId: 'affiliate-123', rate: 0.05 },
]);
// Auto-releases remainder to organization (85%)

// Or manually release
await revenue.escrow.release(transaction._id, {
  recipientId: 'org-123',
  recipientType: 'organization',
});

import { calculateCommissionWithSplits } from '@classytic/revenue';

const commission = calculateCommissionWithSplits(
  5000,    // amount
  0.10,    // platform rate
  0.029,   // gateway fee
  {
    affiliateRate: 0.05,
    affiliateId: 'affiliate-123',
  }
);

// Returns:
// {
//   grossAmount: 500,  // Platform: 10%
//   netAmount: 355,    // After gateway fee (2.9%)
//   affiliate: {
//     grossAmount: 250,  // Affiliate: 5%
//     netAmount: 250,
//   },
//   splits: [...]
// }

import { calculateSplits } from '@classytic/revenue';

const splits = calculateSplits(10000, [
  { type: 'platform_commission', recipientId: 'platform', rate: 0.10 },
  { type: 'affiliate_commission', recipientId: 'level1', rate: 0.05 },
  { type: 'affiliate_commission', recipientId: 'level2', rate: 0.02 },
  { type: 'partner_commission', recipientId: 'partner', rate: 0.03 },
], 0.029);  // Gateway fee

// Returns splits array with calculated amounts
// Organization receives: 8000 (80%)

import { holdSchema, splitsSchema } from '@classytic/revenue';

TransactionSchema.add(holdSchema);    // Adds hold/release tracking
TransactionSchema.add(splitsSchema);  // Adds multi-party splits

// Create transaction linked to Order
const { transaction } = await revenue.monetization.create({
  data: {
    organizationId,
    customerId,
    referenceId: order._id,      // ⭐ Direct field (not metadata)
    referenceModel: 'Order',     // ⭐ Model name
  },
  amount: 1500,
  // ...
});

// Query all transactions for an order
const orderTransactions = await Transaction.find({
  referenceModel: 'Order',
  referenceId: order._id,
});

// Use Mongoose populate
const transactions = await Transaction.find({ ... })
  .populate('referenceId');  // Populates based on referenceModel

const revenue = createRevenue({
  models: { Transaction },
  hooks: {
    // Monetization lifecycle (specific)
    'purchase.created': async ({ transaction, isFree }) => {
      console.log('One-time purchase:', transaction._id);
    },
    'subscription.created': async ({ transaction, isFree }) => {
      console.log('Recurring subscription:', transaction._id);
    },
    'free.created': async ({ transaction }) => {
      console.log('Free access granted:', transaction._id);
    },
    
    // Generic event (fires for all types)
    'monetization.created': async ({ transaction, monetizationType }) => {
      console.log(`${monetizationType} created:`, transaction._id);
    },

    // Payment lifecycle
    'payment.verified': async ({ transaction }) => {
      // Send confirmation email
    },
    'payment.failed': async ({ transaction, error, provider }) => {
      // Alert admin or send customer notification
      console.error('Payment failed:', error);
    },
    'payment.refunded': async ({ refundTransaction }) => {
      // Process refund notification
    },
    
    // Subscription management (requires Subscription model)
    'subscription.activated': async ({ subscription }) => {
      // Subscription activated after payment
    },
    'subscription.renewed': async ({ subscription, renewalCount }) => {
      // Subscription renewed
    },
    'subscription.paused': async ({ subscription }) => {
      // Subscription paused
    },
    'subscription.resumed': async ({ subscription }) => {
      // Subscription resumed
    },
    'subscription.cancelled': async ({ subscription }) => {
      // Subscription cancelled
    },
  },
});

import { PaymentProvider, PaymentIntent, PaymentResult } from '@classytic/revenue';

export class StripeProvider extends PaymentProvider {
  constructor(config) {
    super(config);
    this.name = 'stripe';
    this.stripe = new Stripe(config.apiKey);
  }

  async createIntent(params) {
    const intent = await this.stripe.paymentIntents.create({
      amount: params.amount,
      currency: params.currency,
    });

    return new PaymentIntent({
      id: intent.id,
      provider: 'stripe',
      status: intent.status,
      amount: intent.amount,
      currency: intent.currency,
      clientSecret: intent.client_secret,
      raw: intent,
    });
  }

  async verifyPayment(intentId) {
    const intent = await this.stripe.paymentIntents.retrieve(intentId);
    return new PaymentResult({
      id: intent.id,
      provider: 'stripe',
      status: intent.status === 'succeeded' ? 'succeeded' : 'failed',
      paidAt: new Date(),
      raw: intent,
    });
  }

  // Implement: getStatus(), refund(), handleWebhook()
}

import { 
  TransactionNotFoundError,
  ProviderNotFoundError,
  AlreadyVerifiedError,
  RefundError,
} from '@classytic/revenue';

try {
  await revenue.payments.verify(id);
} catch (error) {
  if (error instanceof AlreadyVerifiedError) {
    console.log('Already verified');
  } else if (error instanceof TransactionNotFoundError) {
    console.log('Transaction not found');
  }
}