/**
 * jQuery Conditions 1.0.1
 *
 * Copyright 2016 Bejamin Rojas
 * @license Released under the MIT license.
 * http://jquery.org/license
 */
(function ($) {
	'use strict';

	$.fn.conditions = function (conditions) {
		return this.each(function (index, element) {
			var CJS = new ConditionsJS(element, conditions, $.fn.conditions.defaults);
			CJS.init();
		});
	};

	$.fn.conditions.defaults = {
		condition: null,
		actions: {},
		effect: 'appear'
	};

	var ConditionsJS = function (element, conditions, defaults) {
		var that = this;

		that.element = $(element);
		that.defaults = defaults;
		that.conditions = conditions;
		that._init = false;

		if (!$.isArray(that.conditions)) {
			that.conditions = [that.conditions];
		}

		$.each(that.conditions, function (i, v) {
			that.conditions[i] = $.extend({}, that.defaults, v);
		});
	};

	ConditionsJS.prototype.init = function () {
		var that = this;
		that._init = true;
		// Set up event listener
		$(that.element).on('change', function () {
			that.matchConditions();
		});

		$(that.element).on('keyup', function () {
			that.matchConditions();
		});

		//Show based on current value on page load
		that.matchConditions(true);
	};

	ConditionsJS.prototype.matchConditions = function (init) {
		var that = this;

		if (!init) {
			that._init = false;
		}

		$.each(that.conditions, function (ind, cond) {
			var condition_matches = false,
				all_conditions_match = true;

			if (!$.isArray(cond.conditions)) {
				cond.conditions = [cond.conditions];
			}

			$.each(cond.conditions, function (i, c) {
				c = $.extend(
					{
						element: null,
						type: 'val',
						operator: '==',
						condition: null,
						multiple: 'single'
					},
					c
				);

				c.element = $(c.element);

				switch (c.type) {
					case 'value':
					case 'val':
						switch (c.operator) {
							case '===':
							case '==':
							case '=':
								if ($.isArray(c.element.val())) {
									var m_single_condition_matches = false;
									var m_all_condition_matches = true;
									$.each(c.element.val(), function (index, value) {
										if (value === c.condition) {
											m_single_condition_matches = true;
										} else {
											m_all_condition_matches = false;
										}
									});
									condition_matches =
										'single' == c.multiple ? m_single_condition_matches : m_all_condition_matches;
								} else {
									condition_matches = c.element.val() === c.condition;
								}
								break;
							case '!==':
							case '!=':
								if ($.isArray(c.element.val())) {
									var m_single_condition_matches = false;
									var m_all_condition_matches = true;
									$.each(c.element.val(), function (index, value) {
										if (value !== c.condition) {
											m_single_condition_matches = true;
										} else {
											m_all_condition_matches = false;
										}
									});
									condition_matches =
										'single' == c.multiple ? m_single_condition_matches : m_all_condition_matches;
								} else {
									condition_matches = c.element.val() !== c.condition;
								}
								break;
							case 'array':
								if ($.isArray(c.element.val())) {
									var m_single_condition_matches = false;
									var m_all_condition_matches = c.element.val().length === c.condition.length;
									$.each(c.element.val(), function (index, value) {
										if ($.inArray(value, c.condition) !== -1) {
											m_single_condition_matches = true;
										} else {
											m_all_condition_matches = false;
										}
									});
									condition_matches =
										'single' == c.multiple ? m_single_condition_matches : m_all_condition_matches;
								} else {
									condition_matches = $.inArray(c.element.val(), c.condition) !== -1;
								}
								break;
							case '!array':
								if ($.isArray(c.element.val())) {
									var m_single_condition_matches = false;
									var m_all_condition_matches = true;
									var selected = [];
									$.each(c.element.val(), function (index, value) {
										if ($.inArray(value, c.condition) === -1) {
											m_single_condition_matches = true;
										} else {
											selected.push(value);
										}
									});
									if (selected.length == c.condition.length) {
										m_all_condition_matches = false;
									}
									condition_matches =
										'single' == c.multiple ? m_single_condition_matches : m_all_condition_matches;
								} else {
									condition_matches = $.inArray(c.element.val(), c.condition) === -1;
								}
								break;
						}
						break;
					case 'checked':
						switch (c.operator) {
							case 'is':
								condition_matches = c.element.is(':checked');
								break;
							case '!is':
								condition_matches = !c.element.is(':checked');
								break;
						}
						break;
				}

				if (!condition_matches && all_conditions_match) {
					all_conditions_match = false;
				}
			});

			if (all_conditions_match) {
				if (!$.isEmptyObject(cond.actions.if)) {
					if (!$.isArray(cond.actions.if)) {
						cond.actions.if = [cond.actions.if];
					}

					$.each(cond.actions.if, function (i, condition) {
						that.showAndHide(condition, cond.effect);
					});
				}
			} else {
				if (!$.isEmptyObject(cond.actions.else)) {
					if (!$.isArray(cond.actions.else)) {
						cond.actions.else = [cond.actions.else];
					}

					$.each(cond.actions.else, function (i, condition) {
						that.showAndHide(condition, cond.effect);
					});
				}
			}
		});
	};

	ConditionsJS.prototype.showAndHide = function (condition, effect) {
		var that = this;

		switch (condition.action) {
			case 'show':
				that._show($(condition.element), effect);
				break;
			case 'hide':
				that._hide($(condition.element), effect);
				break;
		}
	};

	ConditionsJS.prototype._show = function (element, effect) {
		element.show();
	};

	ConditionsJS.prototype._hide = function (element, effect) {
		element.hide();
	};
})(jQuery);