backend/models/Room.js

const mongoose = require('mongoose');

const roomSchema = new mongoose.Schema({
  roomId: {
    type: String,
    required: true,
    unique: true,
  },
  name: {
    type: String,
    required: true,
  },
  host: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'User',
    required: true,
  },
  participants: [{
    type: mongoose.Schema.Types.ObjectId,
    ref: 'User',
  }],
  isActive: {
    type: Boolean,
    default: true,
  },
  createdAt: {
    type: Date,
    default: Date.now,
  },
  expiresAt: {
    type: Date,
    default: () => new Date(+new Date() + 24*60*60*1000), // 24 hours
  },
});

module.exports = mongoose.model('Room', roomSchema);