'use strict';
const { DataTypes } = require('sequelize');
const sequelize     = require('../../config/db.config');
const mdl_Product   = require('./products.mdl');

const mdl_CoursePurchase = sequelize.define('CoursePurchase', {
  id:               { type: DataTypes.BIGINT, primaryKey: true, autoIncrement: true },
  user_id:          { type: DataTypes.BIGINT, allowNull: false },
  product_id:       { type: DataTypes.BIGINT, allowNull: false },
  amount:           { type: DataTypes.DECIMAL(10, 2), allowNull: false },
  currency:         { type: DataTypes.STRING(10), allowNull: false, defaultValue: 'USD' },
  status:           { type: DataTypes.ENUM('pending', 'completed', 'failed', 'cancelled', 'refunded'), allowNull: false, defaultValue: 'pending' },
  provider:         { type: DataTypes.STRING(50), allowNull: false, defaultValue: 'paypal' },
  provider_payload: { type: DataTypes.JSONB, allowNull: true, defaultValue: {} },
  expires_at:       { type: DataTypes.DATE, allowNull: true },
  paid_at:          { type: DataTypes.DATE, allowNull: true },
}, {
  tableName:  'course_purchases',
  timestamps: true,
  paranoid:   true,
});

mdl_CoursePurchase.belongsTo(mdl_Product, { foreignKey: 'product_id', as: 'product' });
mdl_Product.hasMany(mdl_CoursePurchase,   { foreignKey: 'product_id', as: 'purchases' });

module.exports = mdl_CoursePurchase;