/** @module Logger */
__PluginManager__.register('Logger', function(module, exports, require, global){

    var support = require('support');
    var Collection = require('Collection');

    var LogLevel = {
        EMERGENCY: 'emergency',
        ALERT: 'alert',
        CRITICAL: 'critical',
        ERROR: 'error',
        WARNING: 'warning',
        NOTICE: 'notice',
        INFO: 'info',
        DEBUG: 'debug',
        SUCCESS: 'success',
    };

    /**
     * @class Logger
     * @memberOf kit
     */
    var Logger = function() {
        this.collection = new Collection();
        this.onLog = new Collection();
    };

    /**
     * @param collection {kit.Collection}
     */
    Logger.prototype.setCollection = function (collection) {
        this.collection = collection;
    };

    Logger.prototype.emergency = function (message, context) {
        this.log(LogLevel.EMERGENCY, message, context);
    };
    Logger.prototype.alert = function (message, context) {
        this.log(LogLevel.ALERT, message, context);
    };
    Logger.prototype.critical = function (message, context) {
        this.log(LogLevel.CRITICAL, message, context);
    };
    Logger.prototype.error = function (message, context) {
        this.log(LogLevel.ERROR, message, context);
    };
    Logger.prototype.warning = function (message, context) {
        this.log(LogLevel.WARNING, message, context);
    };
    Logger.prototype.notice = function (message, context) {
        this.log(LogLevel.NOTICE, message, context);
    };
    Logger.prototype.info = function (message, context) {
        this.log(LogLevel.INFO, message, context);
    };
    Logger.prototype.debug = function (message, context) {
        this.log(LogLevel.DEBUG, message, context);
    };
    Logger.prototype.success = function (message, context) {
        this.log(LogLevel.SUCCESS, message, context);
    };
    Logger.prototype.log = function (level, message, context = []) {
        var data = {
            level: level,
            message: message,
            context: context,
        };
        this.collection.push(data);
        this.onLog.eachCall(this, data);
    };

    return module.exports = Logger;
});