const mongoose = require('mongoose');

const complaintSchema = new mongoose.Schema({
  complaintId: { type: String, required: true, unique: true },
  customer: { type: mongoose.Schema.Types.ObjectId, ref: 'Customer' },
  order: { type: mongoose.Schema.Types.ObjectId, ref: 'Order' },
  type: { type: String, enum: ['服务态度', '车辆问题', '费用问题', '其他'], required: true },
  content: { type: String, required: true },
  status: { type: String, enum: ['待处理', '处理中', '已解决', '已关闭'], default: '待处理' },
  response: { type: String },
  handler: { type: String },
  createdAt: { type: Date, default: Date.now },
  updatedAt: { type: Date, default: Date.now }
});

complaintSchema.pre('save', function(next) {
  if (!this.complaintId) {
    this.complaintId = `COMP${Date.now()}`;
  }
  this.updatedAt = new Date();
  next();
});

module.exports = mongoose.model('Complaint', complaintSchema);