;( function( $, window, document, undefined ) {

	"use strict";

		// Create the defaults once
		var pluginName = "PasswordStrengthManager",
		    defaults = {
		      password: "",
		      confirm_pass : "",
		      blackList : [],
		      minChars : "",
		      maxChars : "",
		      security_level_class : "",
		      security_text_class: "",
		      pw_match_msg_class: "",
		    };

		// The actual plugin constructor
		function Plugin ( element, options ) {
			this.element = element;
			this.settings = $.extend( {}, defaults, options );
			this._defaults = defaults;
			this._name = pluginName;
			this.init();
			this.info = "";
		}

		// Avoid Plugin.prototype conflicts
		$.extend( Plugin.prototype, {
			init: function() {
				var errors = this.customValidators();

				$(this.settings.pw_match_msg_class).html("");

				if ("" == this.settings.password) {
					this.info = "";
				} else if (errors == 0) {
					this.msg = "";
					var strength = zxcvbn(this.settings.password, this.settings.blackList);
					this.info = this.settings.security_level_class+strength.score;
				}

				if (this.settings.confirm_pass && (this.settings.password != this.settings.confirm_pass)) {
					$(this.settings.pw_match_msg_class).html("비밀번호가 서로 일치하지 않습니다.");
					$(this.settings.pw_match_msg_class).attr('class','msg-fail');
				}
				if (this.settings.confirm_pass && (this.settings.password == this.settings.confirm_pass)) {
					$(this.settings.pw_match_msg_class).html("비밀번호가 일치합니다.");
					$(this.settings.pw_match_msg_class).attr('class','msg-success');
				}

				$(this.element).find('.'+this.settings.security_text_class).html(this.msg);
				$(this.element).attr('class', this.info);
			},

			minChars: function() {
				if (this.settings.password.length < this.settings.minChars) {
					this.msg = "비밀번호는 최소 " + this.settings.minChars + "자 이상 입력하셔야 합니다.";
					$(this.element).attr('class', this.settings.security_level_class+"min");
					return false;
				} else {
					return true;
				}
			},

			maxChars: function() {
				if (this.settings.password.length > this.settings.maxChars) {
					this.msg = "비밀번호는 최대 " + this.settings.maxChars + "자까지 사용하실 수 있습니다.";
					return false;
				} else {
					return true;
				}
			},

			customValidators: function() {
				var err = 0;

				if (this.settings.minChars != "") {
					if (!this.minChars()) {
						err++;
					}
				}
				if (this.settings.maxChars != "") {
					if (!this.maxChars()) {
						err++;
					}
				}
				return err;
			}
		} );

		$.fn[pluginName] = function (options) {
			this.each(function() {
				$.data(this, "plugin_" + pluginName, new Plugin(this, options));
			});
			return this;
		};

} )( jQuery, window, document );