'use strict'

var mongoose = require('mongoose');
var Schema = mongoose.Schema;

var Comment = require('./comment_model');
var User = require('./user_model');

var eventSchema = new Schema({
  picture: {
    type: String,
    default: null
  },
  eventDate: {
    type: Date
  },
  location: {
    type: String,
    required: true
  },
  distance: {
    type: String,
    required: true
  },
  pace: {
    type: String,
    required: true
  },
  author: {
    type: Schema.Types.ObjectId,
    ref: 'User'
  },
  likes: [{
    type: Schema.Types.ObjectId,
    ref: 'User'
  }],
  runners: [{
    type: Schema.Types.ObjectId,
    ref: 'User'
  }],
  comments: [{
    type: Schema.Types.ObjectId,
    ref: 'Comment'
  }]
}, {
  timestamps: true //auto generation time of creation and last update
});

//*********************************************************** */
//            MIDDLEWARE REMOVE COMMENTS REF TO THIS EVENT
// ************************************************************

// eventSchema.pre('remove', async function (next) {
//   try {
//     await Comment.remove({
//       "_id": {
//         $in: this.comments
//       }
//     });

//     next();
//   } catch (err) {
//     next(err)
//   }
// });

//*********************************************************** */
//            MIDDLEWARE REMOVE REF IN USER TO THIS EVENT
// ************************************************************

// eventSchema.pre('remove', async function (next) {
//   try {
//     var event = this;
//     await User.update({
//       createdEvent: event._id
//     }, {
//       $pull: {
//         createdEvent: event._id
//       }
//     }, {
//       multi: true
//     });
//     next();
//   } catch (err) {
//     next(err)
//   }
// });

module.exports = mongoose.model('Event', eventSchema);