const mongoose = require('mongoose')

const chatRoomMessageSchema = new mongoose.Schema({
  roomId: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'ChatRoom',
    required: true,
    index: true
  },
  senderId: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'User',
    required: true,
    index: true
  },
  content: { type: String, trim: true },
  file: { type: String },
  fileType: {
    type: String,
    enum: ['image', 'video', 'file', 'voice', 'location']
  },
  replyToId: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'ChatRoomMessage'
  },
  createdAt: { type: Date, default: Date.now, index: true },
  reactions: [
    {
      userId: {
        type: mongoose.Schema.Types.ObjectId,
        ref: 'User',
        required: true
      },
      emoji: { type: String, required: true, trim: true }
    }
  ]
})

module.exports = mongoose.model('ChatRoomMessage', chatRoomMessageSchema)