// /components/payments/transactionModel.js
'use strict';

const mongoose = require('mongoose');
const uniqueCodePlugin = require('../../utils/mongooseUniqueCodePlugin');

const transactionSchema = new mongoose.Schema({
  payment: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'Payment',
    required: true,
    index: true
  },
  user: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'User',
    index: true
  },
  amount: {
    type: Number,
    required: true,
    min: 0
  },
  method: {
    type: String,
    enum: ['online', 'card', 'cash']
  },
  receiptNumber: { type: String, trim: true },
  notes: { type: String, trim: true, maxlength: 5000 },
  recordedBy: { type: mongoose.Schema.Types.ObjectId, ref: 'User' },
  date: { type: Date },
  dueDate: {
    type: Date,
    required: true,
    index: true
  },
  status: {
    type: String,
    enum: ['pending', 'paid', 'cancelled', 'reverted'],
    default: 'pending',
    index: true
  }
}, {
  timestamps: true
});

transactionSchema.plugin(uniqueCodePlugin);

transactionSchema.index({ payment: 1, dueDate: 1 });

module.exports = mongoose.model('Transaction', transactionSchema);