/*
 * Fuel UX Scheduler
 * https://github.com/ExactTarget/fuelux
 *
 * Copyright (c) 2014 ExactTarget
 * Licensed under the BSD New license.
 */

// -- BEGIN UMD WRAPPER PREFACE --

// For more information on UMD visit:
// https://github.com/umdjs/umd/blob/master/jqueryPlugin.js

(function (factory) {
	if (typeof define === 'function' && define.amd) {
		// if AMD loader is available, register as an anonymous module.
		define(['jquery', 'fuelux/combobox', 'fuelux/datepicker', 'fuelux/radio', 'fuelux/selectlist', 'fuelux/spinbox'], factory);
	} else if (typeof exports === 'object') {
		// Node/CommonJS
		module.exports = factory(require('jquery'), require('./combobox'), require('./datepicker'), 
			require('./radio'), require('./selectlist'), require('./spinbox') );
	} else {
		// OR use browser globals if AMD is not present
		factory(jQuery);
	}
}(function ($) {
	if (!$.fn.combobox || !$.fn.datepicker || !$.fn.radio || !$.fn.selectlist || !$.fn.spinbox) {
		throw new Error('Fuel UX scheduler control requires combobox, datepicker, radio, selectlist, and spinbox.');
	}

	// -- END UMD WRAPPER PREFACE --

	// -- BEGIN MODULE CODE HERE --

	var old = $.fn.scheduler;

	// SCHEDULER CONSTRUCTOR AND PROTOTYPE

	var Scheduler = function (element, options) {
		var self = this;

		this.$element = $(element);
		this.options = $.extend({}, $.fn.scheduler.defaults, options);

		// cache elements
		this.$startDate = this.$element.find('.start-datetime .start-date');
		this.$startTime = this.$element.find('.start-datetime .start-time');

		this.$timeZone = this.$element.find('.timezone-container .timezone');

		this.$repeatIntervalPanel = this.$element.find('.repeat-every-panel');
		this.$repeatIntervalSelect = this.$element.find('.repeat-options');

		this.$repeatIntervalSpinbox = this.$element.find('.repeat-every');
		this.$repeatIntervalTxt = this.$element.find('.repeat-every-text');

		this.$end = this.$element.find('.repeat-end');
		this.$endSelect = this.$end.find('.end-options');
		this.$endAfter = this.$end.find('.end-after');
		this.$endDate = this.$end.find('.end-on-date');

		// panels
		this.$recurrencePanels = this.$element.find('.repeat-panel');


		this.$repeatIntervalSelect.selectlist();

		//initialize sub-controls
		this.$element.find('.selectlist').selectlist();
		this.$startDate.datepicker(this.options.startDateOptions);
		this.$startTime.combobox();
		// init start time
		if (this.$startTime.find('input').val() === '') {
			this.$startTime.combobox('selectByIndex', 0);
		}

		// every 0 days/hours doesn't make sense, change if not set
		if (this.$repeatIntervalSpinbox.find('input').val() === '0') {
			this.$repeatIntervalSpinbox.spinbox({
				'value': 1,
				'min': 1
			});
		} else {
			this.$repeatIntervalSpinbox.spinbox({
				'min': 1
			});
		}

		this.$endAfter.spinbox({
			'value': 1,
			'min': 1
		});
		this.$endDate.datepicker(this.options.endDateOptions);
		this.$element.find('.radio-custom').radio();

		// bind events: 'change' is a Bootstrap JS fired event
		this.$repeatIntervalSelect.on('changed.fu.selectlist', $.proxy(this.repeatIntervalSelectChanged, this));
		this.$endSelect.on('changed.fu.selectlist', $.proxy(this.endSelectChanged, this));
		this.$element.find('.repeat-days-of-the-week .btn-group .btn').on('change.fu.scheduler', function (e, data) {
			self.changed(e, data, true);
		});
		this.$element.find('.combobox').on('changed.fu.combobox', $.proxy(this.changed, this));
		this.$element.find('.datepicker').on('changed.fu.datepicker', $.proxy(this.changed, this));
		this.$element.find('.datepicker').on('dateClicked.fu.datepicker', $.proxy(this.changed, this));
		this.$element.find('.selectlist').on('changed.fu.selectlist', $.proxy(this.changed, this));
		this.$element.find('.spinbox').on('changed.fu.spinbox', $.proxy(this.changed, this));
		this.$element.find('.repeat-monthly .radio-custom, .repeat-yearly .radio-custom').on('change.fu.scheduler', $.proxy(this.changed, this));
	};

	Scheduler.prototype = {
		constructor: Scheduler,

		destroy: function () {
			var markup;
			// set input value attribute
			this.$element.find('input').each(function () {
				$(this).attr('value', $(this).val());
			});

			// empty elements to return to original markup and store
			this.$element.find('.datepicker .calendar').empty();

			markup = this.$element[0].outerHTML;

			// destroy components
			this.$element.find('.combobox').combobox('destroy');
			this.$element.find('.datepicker').datepicker('destroy');
			this.$element.find('.selectlist').selectlist('destroy');
			this.$element.find('.spinbox').spinbox('destroy');
			this.$element.find('.radio-custom').radio('destroy');
			this.$element.remove();

			// any external bindings
			// [none]

			return markup;
		},

		changed: function (e, data, propagate) {
			if (!propagate) {
				e.stopPropagation();
			}

			this.$element.trigger('changed.fu.scheduler', {
				data: (data !== undefined) ? data : $(e.currentTarget).data(),
				originalEvent: e,
				value: this.getValue()
			});
		},

		disable: function () {
			this.toggleState('disable');
		},

		enable: function () {
			this.toggleState('enable');
		},

		setUtcTime: function (d, t, offset) {
			var date = d.split('-');
			var time = t.split(':');
			function z(n) {
				return (n < 10 ? '0' : '') + n;
			}

			var utcDate = new Date(Date.UTC(date[0], (date[1] - 1), date[2], time[0], time[1], (time[2] ? time[2] : 0)));

			if (offset === 'Z') {
				utcDate.setUTCHours(utcDate.getUTCHours() + 0);
			} else {
				var re1 = '(.)';// Any Single Character 1
				var re2 = '.*?';// Non-greedy match on filler
				var re3 = '\\d';// Uninteresting: d
				var re4 = '.*?';// Non-greedy match on filler
				var re5 = '(\\d)';// Any Single Digit 1

				var p = new RegExp(re1 + re2 + re3 + re4 + re5, ["i"]);
				var m = p.exec(offset);
				if (m !== null) {
					var c1 = m[1];
					var d1 = m[2];

					var modifier = (c1 === '+') ? 1 : -1;

					utcDate.setUTCHours(utcDate.getUTCHours() + (modifier * parseInt(d1, 10)));
				}

			}

			var localDifference = utcDate.getTimezoneOffset();
			utcDate.setMinutes(localDifference);
			return utcDate;
		},

		// called when the end range changes
		// (Never, After, On date)
		endSelectChanged: function (e, data) {
			var selectedItem, val;

			if (!data) {
				selectedItem = this.$endSelect.selectlist('selectedItem');
				val = selectedItem.value;
			} else {
				val = data.value;
			}

			// hide all panels
			this.$endAfter.parent().addClass('hidden');
			this.$endAfter.parent().attr('aria-hidden', 'true');

			this.$endDate.parent().addClass('hidden');
			this.$endDate.parent().attr('aria-hidden', 'true');

			if (val === 'after') {
				this.$endAfter.parent().removeClass('hide hidden'); // hide is deprecated
				this.$endAfter.parent().attr('aria-hidden', 'false');
			} else if (val === 'date') {
				this.$endDate.parent().removeClass('hide hidden');	// hide is deprecated
				this.$endDate.parent().attr('aria-hidden', 'false');
			}
		},

		getValue: function () {
			// FREQ = frequency (secondly, minutely, hourly, daily, weekdays, weekly, monthly, yearly)
			// BYDAY = when picking days (MO,TU,WE,etc)
			// BYMONTH = when picking months (Jan,Feb,March) - note the values should be 1,2,3...
			// BYMONTHDAY = when picking days of the month (1,2,3...)
			// BYSETPOS = when picking First,Second,Third,Fourth,Last (1,2,3,4,-1)

			var interval = this.$repeatIntervalSpinbox.spinbox('value');
			var pattern = '';
			var repeat = this.$repeatIntervalSelect.selectlist('selectedItem').value;
			var startTime;

			if (this.$startTime.combobox('selectedItem').value) {
				startTime = this.$startTime.combobox('selectedItem').value;
				startTime = startTime.toLowerCase();

			} else {
				startTime = this.$startTime.combobox('selectedItem').text.toLowerCase();
			}

			var timeZone = this.$timeZone.selectlist('selectedItem');
			var getFormattedDate;

			getFormattedDate = function (dateObj, dash) {
				var fdate = '';
				var item;

				fdate += dateObj.getFullYear();
				fdate += dash;
				item = dateObj.getMonth() + 1;//because 0 indexing makes sense when dealing with months /sarcasm
				fdate += (item < 10) ? '0' + item : item;
				fdate += dash;
				item = dateObj.getDate();
				fdate += (item < 10) ? '0' + item : item;

				return fdate;
			};

			var day, days, hasAm, hasPm, month, pos, startDateTime, type;

			startDateTime = '' + getFormattedDate(this.$startDate.datepicker('getDate'), '-');

			startDateTime += 'T';
			hasAm = (startTime.search('am') >= 0);
			hasPm = (startTime.search('pm') >= 0);
			startTime = $.trim(startTime.replace(/am/g, '').replace(/pm/g, '')).split(':');
			startTime[0] = parseInt(startTime[0], 10);
			startTime[1] = parseInt(startTime[1], 10);
			if (hasAm && startTime[0] > 11) {
				startTime[0] = 0;
			} else if (hasPm && startTime[0] < 12) {
				startTime[0] += 12;
			}

			startDateTime += (startTime[0] < 10) ? '0' + startTime[0] : startTime[0];
			startDateTime += ':';
			startDateTime += (startTime[1] < 10) ? '0' + startTime[1] : startTime[1];

			startDateTime += (timeZone.offset === '+00:00') ? 'Z' : timeZone.offset;

			if (repeat === 'none') {
				pattern = 'FREQ=DAILY;INTERVAL=1;COUNT=1;';
			} else if (repeat === 'secondly') {
				pattern = 'FREQ=SECONDLY;';
				pattern += 'INTERVAL=' + interval + ';';
			} else if (repeat === 'minutely') {
				pattern = 'FREQ=MINUTELY;';
				pattern += 'INTERVAL=' + interval + ';';
			} else if (repeat === 'hourly') {
				pattern = 'FREQ=HOURLY;';
				pattern += 'INTERVAL=' + interval + ';';
			} else if (repeat === 'daily') {
				pattern += 'FREQ=DAILY;';
				pattern += 'INTERVAL=' + interval + ';';
			} else if (repeat === 'weekdays') {
				pattern += 'FREQ=DAILY;';
				pattern += 'BYDAY=MO,TU,WE,TH,FR;';
				pattern += 'INTERVAL=1;';
			} else if (repeat === 'weekly') {
				days = [];
				this.$element.find('.repeat-days-of-the-week .btn-group input:checked').each(function () {
					days.push($(this).data().value);
				});

				pattern += 'FREQ=WEEKLY;';
				pattern += 'BYDAY=' + days.join(',') + ';';
				pattern += 'INTERVAL=' + interval + ';';
			} else if (repeat === 'monthly') {
				pattern += 'FREQ=MONTHLY;';
				pattern += 'INTERVAL=' + interval + ';';
				type = this.$element.find('input[name=repeat-monthly]:checked').val();

				if (type === 'bymonthday') {
					day = parseInt(this.$element.find('.repeat-monthly-date .selectlist').selectlist('selectedItem').text, 10);
					pattern += 'BYMONTHDAY=' + day + ';';
				} else if (type === 'bysetpos') {
					days = this.$element.find('.repeat-monthly-day .month-days').selectlist('selectedItem').value;
					pos = this.$element.find('.repeat-monthly-day .month-day-pos').selectlist('selectedItem').value;
					pattern += 'BYDAY=' + days + ';';
					pattern += 'BYSETPOS=' + pos + ';';
				}

			} else if (repeat === 'yearly') {
				pattern += 'FREQ=YEARLY;';
				type = this.$element.find('input[name=repeat-yearly]:checked').val();

				if (type === 'bymonthday') {
					// there are multiple .year-month classed elements in scheduler markup
					month = this.$element.find('.repeat-yearly-date .year-month').selectlist('selectedItem').value;
					day = this.$element.find('.repeat-yearly-date .year-month-day').selectlist('selectedItem').text;
					pattern += 'BYMONTH=' + month + ';';
					pattern += 'BYMONTHDAY=' + day + ';';
				} else if (type === 'bysetpos') {
					days = this.$element.find('.repeat-yearly-day .year-month-days').selectlist('selectedItem').value;
					pos = this.$element.find('.repeat-yearly-day .year-month-day-pos').selectlist('selectedItem').value;
					// there are multiple .year-month classed elements in scheduler markup
					month = this.$element.find('.repeat-yearly-day .year-month').selectlist('selectedItem').value;

					pattern += 'BYDAY=' + days + ';';
					pattern += 'BYSETPOS=' + pos + ';';
					pattern += 'BYMONTH=' + month + ';';
				}

			}

			var end = this.$endSelect.selectlist('selectedItem').value;
			var duration = '';

			// if both UNTIL and COUNT are not specified, the recurrence will repeat forever
			// http://tools.ietf.org/html/rfc2445#section-4.3.10
			if (repeat !== 'none') {
				if (end === 'after') {
					duration = 'COUNT=' + this.$endAfter.spinbox('value') + ';';
				} else if (end === 'date') {
					duration = 'UNTIL=' + getFormattedDate(this.$endDate.datepicker('getDate'), '') + ';';
				}

			}

			pattern += duration;
			// remove trailing semicolon
			pattern = pattern.substring(pattern.length - 1) === ';' ? pattern.substring(0, pattern.length - 1) : pattern;

			var data = {
				startDateTime: startDateTime,
				timeZone: {
					name: timeZone.name,
					offset: timeZone.offset
				},
				recurrencePattern: pattern
			};

			return data;
		},

		// called when the repeat interval changes
		// (None, Hourly, Daily, Weekdays, Weekly, Monthly, Yearly
		repeatIntervalSelectChanged: function (e, data) {
			var selectedItem, val, txt;

			if (!data) {
				selectedItem = this.$repeatIntervalSelect.selectlist('selectedItem');
				val = selectedItem.value;
				txt = selectedItem.text;
			} else {
				val = data.value;
				txt = data.text;
			}

			// set the text
			this.$repeatIntervalTxt.text(txt);

			switch (val.toLowerCase()) {
				case 'hourly':
				case 'daily':
				case 'weekly':
				case 'monthly':
					this.$repeatIntervalPanel.removeClass('hide hidden'); // hide is deprecated
					this.$repeatIntervalPanel.attr('aria-hidden', 'false');
					break;
				default:
					this.$repeatIntervalPanel.addClass('hidden'); // hide is deprecated
					this.$repeatIntervalPanel.attr('aria-hidden', 'true');
					break;
			}

			// hide all panels
			this.$recurrencePanels.addClass('hidden');
			this.$recurrencePanels.attr('aria-hidden', 'true');

			// show panel for current selection
			this.$element.find('.repeat-' + val).removeClass('hide hidden'); // hide is deprecated
			this.$element.find('.repeat-' + val).attr('aria-hidden', 'false');

			// the end selection should only be shown when
			// the repeat interval is not "None (run once)"
			if (val === 'none') {
				this.$end.addClass('hidden');
				this.$end.attr('aria-hidden', 'true');
			} else {
				this.$end.removeClass('hide hidden'); // hide is deprecated
				this.$end.attr('aria-hidden', 'false');
			}
		},

		setValue: function (options) {
			var hours, i, item, l, minutes, period, recur, temp, startDate, startTime, timeOffset;

			if (options.startDateTime) {
				temp = options.startDateTime.split('T');
				startDate = temp[0];

				if (temp[1]) {
					temp[1] = temp[1].split(':');
					hours = parseInt(temp[1][0], 10);
					minutes = (temp[1][1]) ? parseInt(temp[1][1].split('+')[0].split('-')[0].split('Z')[0], 10) : 0;
					period = (hours < 12) ? 'AM' : 'PM';

					if (hours === 0) {
						hours = 12;
					} else if (hours > 12) {
						hours -= 12;
					}

					minutes = (minutes < 10) ? '0' + minutes : minutes;
					startTime = hours + ':' + minutes;
					temp = hours + ':' + minutes + ' ' + period;
					this.$startTime.find('input').val(temp);
					this.$startTime.combobox('selectByText', temp);
				} else {
					startTime = '00:00';
				}
			} else {
				startTime = '00:00';
				var currentDate = this.$startDate.datepicker('getDate');
				startDate = currentDate.getFullYear() + '-' + currentDate.getMonth() + '-' + currentDate.getDate();
			}

			item = 'li[data';
			if (options.timeZone) {
				if (typeof (options.timeZone) === 'string') {
					item += '-name="' + options.timeZone;
				} else {
					if (options.timeZone.name) {
						item += '-name="' + options.timeZone.name;
					} else {
						item += '-offset="' + options.timeZone.offset;
					}
				}

				item += '"]';
				timeOffset = options.timeZone.offset;
				this.$timeZone.selectlist('selectBySelector', item);
			} else if (options.startDateTime) {
				temp = options.startDateTime.split('T')[1];
				if (temp) {
					if (temp.search(/\+/) > -1) {
						temp = '+' + $.trim(temp.split('+')[1]);
					} else if (temp.search(/\-/) > -1) {
						temp = '-' + $.trim(temp.split('-')[1]);
					} else {
						temp = '+00:00';
					}
				} else {
					temp = '+00:00';
				}

				timeOffset = (temp === '+00:00') ? 'Z' : temp;

				item += '-offset="' + temp + '"]';
				this.$timeZone.selectlist('selectBySelector', item);
			} else {
				timeOffset = 'Z';
			}

			if (options.recurrencePattern) {
				recur = {};
				temp = options.recurrencePattern.toUpperCase().split(';');
				for (i = 0, l = temp.length; i < l; i++) {
					if (temp[i] !== '') {
						item = temp[i].split('=');
						recur[item[0]] = item[1];
					}
				}

				if (recur.FREQ === 'DAILY') {
					if (recur.BYDAY === 'MO,TU,WE,TH,FR') {
						item = 'weekdays';
					} else {
						if (recur.INTERVAL === '1' && recur.COUNT === '1') {
							item = 'none';
						} else {
							item = 'daily';
						}
					}
				} else if (recur.FREQ === 'SECONDLY') {
					item = 'secondly';
				} else if (recur.FREQ === 'MINUTELY') {
					item = 'minutely';
				} else if (recur.FREQ === 'HOURLY') {
					item = 'hourly';
				} else if (recur.FREQ === 'WEEKLY') {
					if (recur.BYDAY) {
						item = this.$element.find('.repeat-days-of-the-week .btn-group');
						item.find('label').removeClass('active');
						temp = recur.BYDAY.split(',');
						for (i = 0, l = temp.length; i < l; i++) {
							item.find('input[data-value="' + temp[i] + '"]').prop('checked',true).parent().addClass('active');
						}
					}

					item = 'weekly';
				} else if (recur.FREQ === 'MONTHLY') {
					this.$element.find('.repeat-monthly input').removeAttr('checked').removeClass('checked');
					this.$element.find('.repeat-monthly label.radio-custom').removeClass('checked');
					if (recur.BYMONTHDAY) {
						temp = this.$element.find('.repeat-monthly-date');
						temp.find('input').addClass('checked').prop('checked', true);
						temp.find('label.radio-custom').addClass('checked');
						temp.find('.selectlist').selectlist('selectByValue', recur.BYMONTHDAY);
					} else if (recur.BYDAY) {
						temp = this.$element.find('.repeat-monthly-day');
						temp.find('input').addClass('checked').prop('checked', true);
						temp.find('label.radio-custom').addClass('checked');
						if (recur.BYSETPOS) {
							temp.find('.month-day-pos').selectlist('selectByValue', recur.BYSETPOS);
						}

						temp.find('.month-days').selectlist('selectByValue', recur.BYDAY);
					}

					item = 'monthly';
				} else if (recur.FREQ === 'YEARLY') {
					this.$element.find('.repeat-yearly input').removeAttr('checked').removeClass('checked');
					this.$element.find('.repeat-yearly label.radio-custom').removeClass('checked');
					if (recur.BYMONTHDAY) {
						temp = this.$element.find('.repeat-yearly-date');
						temp.find('input').addClass('checked').prop('checked', true);
						temp.find('label.radio-custom').addClass('checked');
						if (recur.BYMONTH) {
							temp.find('.year-month').selectlist('selectByValue', recur.BYMONTH);
						}

						temp.find('.year-month-day').selectlist('selectByValue', recur.BYMONTHDAY);
					} else if (recur.BYSETPOS) {
						temp = this.$element.find('.repeat-yearly-day');
						temp.find('input').addClass('checked').prop('checked', true);
						temp.find('label.radio-custom').addClass('checked');
						temp.find('.year-month-day-pos').selectlist('selectByValue', recur.BYSETPOS);
						if (recur.BYDAY) {
							temp.find('.year-month-days').selectlist('selectByValue', recur.BYDAY);
						}

						if (recur.BYMONTH) {
							temp.find('.year-month').selectlist('selectByValue', recur.BYMONTH);
						}

					}

					item = 'yearly';
				} else {
					item = 'none';
				}

				if (recur.COUNT) {
					this.$endAfter.spinbox('value', parseInt(recur.COUNT, 10));
					this.$endSelect.selectlist('selectByValue', 'after');
				} else if (recur.UNTIL) {
					temp = recur.UNTIL;
					if (temp.length === 8) {
						temp = temp.split('');
						temp.splice(4, 0, '-');
						temp.splice(7, 0, '-');
						temp = temp.join('');
					}

					var timeZone = this.$timeZone.selectlist('selectedItem');
					var timezoneOffset = (timeZone.offset === '+00:00') ? 'Z' : timeZone.offset;

					var utcEndHours = this.setUtcTime(temp, startTime, timezoneOffset);
					this.$endDate.datepicker('setDate', utcEndHours);

					this.$endSelect.selectlist('selectByValue', 'date');
				} else {
					this.$endSelect.selectlist('selectByValue', 'never');
				}

				this.endSelectChanged();

				if (recur.INTERVAL) {
					this.$repeatIntervalSpinbox.spinbox('value', parseInt(recur.INTERVAL, 10));
				}

				this.$repeatIntervalSelect.selectlist('selectByValue', item);
				this.repeatIntervalSelectChanged();
			}

			var utcStartHours = this.setUtcTime(startDate, startTime, timeOffset);

			this.$startDate.datepicker('setDate', utcStartHours);
		},

		toggleState: function (action) {
			this.$element.find('.combobox').combobox(action);
			this.$element.find('.datepicker').datepicker(action);
			this.$element.find('.selectlist').selectlist(action);
			this.$element.find('.spinbox').spinbox(action);
			this.$element.find('.radio-custom').radio(action);

			if (action === 'disable') {
				action = 'addClass';
			} else {
				action = 'removeClass';
			}

			this.$element.find('.repeat-days-of-the-week .btn-group')[action]('disabled');
		},

		value: function (options) {
			if (options) {
				return this.setValue(options);
			} else {
				return this.getValue();
			}
		}
	};


	// SCHEDULER PLUGIN DEFINITION

	$.fn.scheduler = function (option) {
		var args = Array.prototype.slice.call(arguments, 1);
		var methodReturn;

		var $set = this.each(function () {
			var $this = $(this);
			var data = $this.data('fu.scheduler');
			var options = typeof option === 'object' && option;

			if (!data) {
				$this.data('fu.scheduler', (data = new Scheduler(this, options)));
			}

			if (typeof option === 'string') {
				methodReturn = data[option].apply(data, args);
			}
		});

		return (methodReturn === undefined) ? $set : methodReturn;
	};

	$.fn.scheduler.defaults = {};

	$.fn.scheduler.Constructor = Scheduler;

	$.fn.scheduler.noConflict = function () {
		$.fn.scheduler = old;
		return this;
	};


	// DATA-API

	$(document).on('mousedown.fu.scheduler.data-api', '[data-initialize=scheduler]', function (e) {
		var $control = $(e.target).closest('.scheduler');
		if (!$control.data('fu.scheduler')) {
			$control.scheduler($control.data());
		}
	});

	// Must be domReady for AMD compatibility
	$(function () {
		$('[data-initialize=scheduler]').each(function () {
			var $this = $(this);
			if ($this.data('scheduler')) return;
			$this.scheduler($this.data());
		});
	});

	// -- BEGIN UMD WRAPPER AFTERWORD --
}));
// -- END UMD WRAPPER AFTERWORD --
