var mongoose = require('mongoose');

/**
 * Models
 */

var SettingsScheme = mongoose.Schema({
  key: String,
  value: mongoose.Schema.Types.Mixed
});

SettingsScheme.statics.get = function (key, cb) {
  this.findOne({key: key}, 'value', function (err, record) {
    if (record !== null) {
      record = record.value;
    }
    cb(err, record);
  });
};

SettingsScheme.statics.set = function (key, value, cb) {
  this.findOne({key: key}, function (err, object) {
    if (object === null) {
      object = new Settings({
        key: key
      });
    }
    object.value = value;
    object.save(cb);
  });
};


/**
 * Init models
 */
var Settings = mongoose.model('Settings', SettingsScheme);

/**
 * Globals
 */
module.exports = Settings;