var mongoose = require('mongoose');
var Schema = mongoose.Schema({
    name: String,
    balance: {},
    description: String,
    author: {type: mongoose.Schema.Types.ObjectId, ref: 'User'},
    moderators: [{type: mongoose.Schema.Types.ObjectId, sparse: true, ref: 'User'}],
    url: {type: String, unique: true, sparse: true, trim: true},
    avatarUrl: {type: String, default: '/assets/img/groups/avatar.png'},
});

Schema.methods.create = function(obj, user, sd) {
    this.author = user._id;
    this.balance = {};
    this.moderators = [user._id];
    this.name = obj.name;
    this.balance[user._id] = [];
    this.avatarUrl = obj.avatarUrl || '/assets/img/groups/avatar.png'
    this.balance['item'] = 0
}

module.exports = mongoose.model('Group', Schema);