const mongoose = require('mongoose');

const cartItemSchema = new mongoose.Schema({
  product: { type: mongoose.Schema.Types.ObjectId, ref: 'Product', required: true },
  variantColor: { type: String, default: '' },
  variantFinish: { type: String, default: '' },
  quantity: { type: Number, required: true, default: 1, min: 1 },
  price: { type: Number, required: true }
});

const cartSchema = new mongoose.Schema({
  user: { type: mongoose.Schema.Types.ObjectId, ref: 'User', default: null },
  sessionId: { type: String, default: null },
  items: [cartItemSchema],
  couponCode: { type: String, default: '' },
  discountAmount: { type: Number, default: 0 }
}, { timestamps: true });

module.exports = mongoose.model('Cart', cartSchema);