/*
* jQuery timepicker addon
* By: Trent Richardson [http://trentrichardson.com]
* Version 0.3
* Last Modified: 5/7/2010
* Modified by : RWA
*
* Copyright 2010 Trent Richardson
* Dual licensed under the MIT and GPL licenses.
* http://trentrichardson.com/Impromptu/GPL-LICENSE.txt
* http://trentrichardson.com/Impromptu/MIT-LICENSE.txt
*
* HERES THE CSS:
* #ui-timepicker-div dl{ text-align: left; }
* #ui-timepicker-div dl dt{ height: 25px; }
* #ui-timepicker-div dl dd{ margin: -25px 0 10px 65px; }
*/
(function ($) {
    function Timepicker() { }

    Timepicker.prototype = {
        $input: null,
        $timeObj: null,
        inst: null,
        hour_slider: null,
        minute_slider: null,
        second_slider: null,
        hour: 0,
        minute: 0,
        second: 0,
        ampm: '',
        formattedDate: '',
        formattedTime: '',
        formattedDateTime: '',
        defaults: {
            holdDatepickerOpen: true,
            showButtonPanel: true,
            timeOnly: false,
            showHour: true,
            showMinute: true,
            showSecond: false,
            stepHour: .05,
            stepMinute: .05,
            stepSecond: .05,
            ampm: false,
            hour: 0,
            minute: 0,
            second: 0,
            timeFormat: 'hh:mm tt'
        },

        //########################################################################
        // add our sliders to the calendar
        //########################################################################
        addTimePicker: function (dp_inst) {
            var tp_inst = this;
            var currDT = this.$input.val();
            var regstr = this.defaults.timeFormat.toString()
                            .replace(/h{1,2}/ig, '(\\d?\\d)')
                            .replace(/m{1,2}/ig, '(\\d?\\d)')
                            .replace(/s{1,2}/ig, '(\\d?\\d)')
                            .replace(/t{1,2}/ig, '(am|pm|a|p)?')
                            .replace(/\s/g, '\\s?') + '$';

            var order = this.getFormatPositions();
            var treg = currDT.match(new RegExp(regstr, 'i'));

            if (treg) {
                if (order.t !== -1)
                    this.ampm = ((treg[order.t] == undefined || treg[order.t].length == 0) ? '' : (treg[order.t].charAt(0).toUpperCase() == 'A') ? 'AM' : 'PM').toUpperCase();

                if (order.h !== -1) {
                    if (this.ampm == 'AM' && treg[order.h] == '12')
                        this.hour = 0; // 12am = 0 hour
                    else if (this.ampm == 'PM' && treg[order.h] != '12')
                        this.hour = (parseFloat(treg[order.h]) + 12).toFixed(0); //12pm = 12 hour, any other pm = hour + 12
                    else
                        this.hour = treg[order.h];
                }

                if (order.m !== -1)
                    this.minute = treg[order.m];

                if (order.s !== -1)
                    this.second = treg[order.s];
            }

            // wait for datepicker to create itself.. 60% of the time it works every time..
            setTimeout(function () {
                tp_inst.injectTimePicker(dp_inst, tp_inst);
            }, 10);
        },

        //########################################################################
        // figure out position of time elements.. cause js cant do named captures
        //########################################################################
        getFormatPositions: function () {
            var finds = this.defaults.timeFormat.toLowerCase().match(/(h{1,2}|m{1,2}|s{1,2}|t{1,2})/g);
            var orders = { h: -1, m: -1, s: -1, t: -1 };

            if (finds) {
                for (var i = 0; i < finds.length; i++) {
                    if (orders[finds[i].toString().charAt(0)] == -1)
                        orders[finds[i].toString().charAt(0)] = i + 1;
                }
            }

            return orders;
        },

        //########################################################################
        // generate and inject html for timepicker into ui datepicker
        //########################################################################
        injectTimePicker: function (dp_inst, tp_inst) {
            var $dp = $('#' + $.datepicker._mainDivId);

            // Prevent displaying twice
            if ($dp.find("div#ui-timepicker-div").length == 0) {
                var html = '<div id="ui-timepicker-div">' +
                        '<dl>' +
                            '<dt id="ui_tpicker_time_label">Time</dt>' +
                            '<dd id="ui_tpicker_time"></dd>' +
                            '<dt id="ui_tpicker_hour_label"' + ((tp_inst.defaults.showHour) ? '' : ' style="display:none;"') + '>Hour</dt>' +
                            '<dd id="ui_tpicker_hour"' + ((tp_inst.defaults.showHour) ? '' : ' style="display:none;"') + '></dd>' +
                            '<dt id="ui_tpicker_minute_label"' + ((tp_inst.defaults.showMinute) ? '' : ' style="display:none;"') + '>Minute</dt>' +
                            '<dd id="ui_tpicker_minute"' + ((tp_inst.defaults.showMinute) ? '' : ' style="display:none;"') + '></dd>' +
                            '<dt id="ui_tpicker_second_label"' + ((tp_inst.defaults.showSecond) ? '' : ' style="display:none;"') + '>Second</dt>' +
                            '<dd id="ui_tpicker_second"' + ((tp_inst.defaults.showSecond) ? '' : ' style="display:none;"') + '></dd>' +
                        '</dl>' +
                    '</div>';

                $tp = $(html);

                if (tp_inst.defaults.timeOnly == true) { // if we only want time picker
                    $tp.prepend('<div class="ui-widget-header ui-helper-clearfix ui-corner-all"><div class="ui-datepicker-title">Choose Time</div></div>');
                    $dp.find('.ui-datepicker-header, .ui-datepicker-calendar, .ui-datepicker-current').hide();
                }

                tp_inst.hour_slider = $tp.find('#ui_tpicker_hour').slider({ orientation: "horizontal", value: tp_inst.hour, max: 23, step: tp_inst.defaults.stepHour, slide: function () { tp_inst.onTimeChange(dp_inst, tp_inst); } });
                tp_inst.minute_slider = $tp.find('#ui_tpicker_minute').slider({ orientation: "horizontal", value: tp_inst.minute, max: 59, step: tp_inst.defaults.stepMinute, slide: function () { tp_inst.onTimeChange(dp_inst, tp_inst); } });
                tp_inst.second_slider = $tp.find('#ui_tpicker_second').slider({ orientation: "horizontal", value: tp_inst.second, max: 59, step: tp_inst.defaults.stepSecond, slide: function () { tp_inst.onTimeChange(dp_inst, tp_inst); } });

                $dp.find('.ui-datepicker-calendar').after($tp);
                tp_inst.$timeObj = $('#ui_tpicker_time');

                if (dp_inst != null) {
                    tp_inst.onTimeChange(dp_inst, tp_inst);
                }
            }
        },

        //########################################################################
        // when a slider moves..
        // on time change is also called when the time is updated in the text field
        //########################################################################
        onTimeChange: function (dp_inst, tp_inst) {
            var hour = tp_inst.hour_slider.slider('value');
            var minute = tp_inst.minute_slider.slider('value');
            var second = tp_inst.second_slider.slider('value');
            var ampm = (tp_inst.hour < 12) ? 'AM' : 'PM';

            var hasChanged = false;

            // if the update was done in the input field, this field should not be updated
            // if the update was done using the sliders, update the input field
            if (tp_inst.hour != hour || tp_inst.minute != minute || tp_inst.second != second || (tp_inst.ampm.length > 0 && tp_inst.ampm != ampm))
            hasChanged = true;

            tp_inst.hour = parseFloat(hour).toFixed(0);
            tp_inst.minute = parseFloat(minute).toFixed(0);
            tp_inst.second = parseFloat(second).toFixed(0);
            tp_inst.ampm = ampm;

            tp_inst.formatTime(tp_inst);

            tp_inst.$timeObj.text(tp_inst.formattedTime);

            // Update the time in the textbox if it was changed
            if (hasChanged)
                tp_inst.updateDateTime(dp_inst, tp_inst);
        },

        //########################################################################
        // format the time all pretty...
        //########################################################################
        formatTime: function (inst) {
            var tmptime = inst.defaults.timeFormat.toString();
            var hour12 = ((inst.ampm == 'AM') ? (inst.hour) : (inst.hour % 12));
            hour12 = (hour12 == 0) ? 12 : hour12;

            if (inst.defaults.ampm == true) {
                tmptime = tmptime.toString()
                    .replace(/hh/g, ((hour12 < 10) ? '0' : '') + hour12)
                    .replace(/h/g, hour12)
                    .replace(/mm/g, ((inst.minute < 10) ? '0' : '') + inst.minute)
                    .replace(/m/g, inst.minute)
                    .replace(/ss/g, ((inst.second < 10) ? '0' : '') + inst.second)
                    .replace(/s/g, inst.second)
                    .replace(/TT/g, inst.ampm.toUpperCase())
                    .replace(/tt/g, inst.ampm.toLowerCase())
                    .replace(/T/g, inst.ampm.charAt(0).toUpperCase())
                    .replace(/t/g, inst.ampm.charAt(0).toLowerCase());
            }
            else {
                tmptime = tmptime.toString()
                    .replace(/hh/g, ((inst.hour < 10) ? '0' : '') + inst.hour)
                    .replace(/h/g, inst.hour)
                    .replace(/mm/g, ((inst.minute < 10) ? '0' : '') + inst.minute)
                    .replace(/m/g, inst.minute)
                    .replace(/ss/g, ((inst.second < 10) ? '0' : '') + inst.second)
                    .replace(/s/g, inst.second);
                tmptime = $.trim(tmptime.replace(/t/gi, ''));
            }

            inst.formattedTime = tmptime;
            return inst.formattedTime;
        },

        //########################################################################
        // update our input with the new date time..
        //########################################################################
        updateDateTime: function (dp_inst, tp_inst) {
            var dt = this.$input.datepicker('getDate');

            if (dt == null)
                this.formattedDate = $.datepicker.formatDate($.datepicker._get(dp_inst, 'dateFormat'), new Date(), $.datepicker._getFormatConfig(dp_inst));
            else this.formattedDate = $.datepicker.formatDate($.datepicker._get(dp_inst, 'dateFormat'), dt, $.datepicker._getFormatConfig(dp_inst));

            this.formattedDateTime = this.formattedDate + ' ' + this.formattedTime;

            if (this.defaults.timeOnly == true)
                this.$input.val(this.formattedTime);
            else this.$input.val(this.formattedDateTime);
        }
    };

    //########################################################################
    // extend timepicker to datepicker
    //########################################################################
    jQuery.fn.datetimepicker = function (o) {
        var tp = new Timepicker();

        if (o == undefined)
            o = {};

        tp.defaults = $.extend({}, tp.defaults, o);

        tp.defaults = $.extend({}, tp.defaults, {
            beforeShow: function (input, inst) {
                tp.hour = tp.defaults.hour;
                tp.minute = tp.defaults.minute;
                tp.second = tp.defaults.second;
                tp.ampm = '';
                tp.$input = $(input);
                tp.inst = inst;

                tp.addTimePicker(inst);

                if ($.isFunction(o['beforeShow'])) o.beforeShow(input, inst);
            },
            onChangeMonthYear: function (year, month, inst) {
                tp.addTimePicker(inst);
                // Update the time as well : this prevents the time from disappearing from the input field.
                tp.updateDateTime(inst, tp);

                if ($.isFunction(o['onChangeMonthYear'])) o.onChangeMonthYear(year, month, inst);
            },
            onClose: function (dateText, inst) {
                tp.updateDateTime(inst, tp);

                if ($.isFunction(o['onClose'])) o.onClose(dateText, inst);
            }
        });

        $(this).datepicker(tp.defaults);
    };

    //########################################################################
    // shorthand just to use timepicker..
    //########################################################################
    jQuery.fn.timepicker = function (o) {
        o = $.extend(o, { timeOnly: true });

        $(this).datetimepicker(o);
    };

    //########################################################################
    // the bad hack :/ override datepicker so it doesnt close on select
    //########################################################################
    $.datepicker._selectDate = function (id, dateStr) {
        var target = $(id);
        var inst = this._getInst(target[0]);
        var holdDatepickerOpen = (this._get(inst, 'holdDatepickerOpen') === true) ? true : false; // this line for timepicker..
        dateStr = (dateStr != null ? dateStr : this._formatDate(inst));

        if (inst.input)
            inst.input.val(dateStr);
        this._updateAlternate(inst);
        var onSelect = this._get(inst, 'onSelect');
        if (onSelect)
            onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);  // trigger custom callback
        else if (inst.input)
            inst.input.trigger('change'); // fire the change event
        if (inst.inline)
            this._updateDatepicker(inst);
        else if (holdDatepickerOpen) { } // this line for timepicker..
        else {
            this._hideDatepicker();
            this._lastInput = inst.input[0];
            if (typeof (inst.input[0]) != 'object')
                inst.input.focus(); // restore focus
            this._lastInput = null;
        }

        this._notifyChange(inst);
    };


    //#############################################################################################
    // second bad hack :/ override datepicker so it triggers an event when changing the input field
    //#############################################################################################
    /* Generate the date picker content. */
    $.datepicker._updateDatepicker = function (inst) {
        var self = this;
        var borders = $.datepicker._getBorders(inst.dpDiv);
        inst.dpDiv.empty().append(this._generateHTML(inst))
            .find('iframe.ui-datepicker-cover') // IE6- only
                .css({ left: -borders[0], top: -borders[1],
                    width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()
                })
            .end()
            .find('button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a')
                .bind('mouseout', function () {
                    $(this).removeClass('ui-state-hover');
                    if (this.className.indexOf('ui-datepicker-prev') != -1) $(this).removeClass('ui-datepicker-prev-hover');
                    if (this.className.indexOf('ui-datepicker-next') != -1) $(this).removeClass('ui-datepicker-next-hover');
                })
                .bind('mouseover', function () {
                    if (!self._isDisabledDatepicker(inst.inline ? inst.dpDiv.parent()[0] : inst.input[0])) {
                        $(this).parents('.ui-datepicker-calendar').find('a').removeClass('ui-state-hover');
                        $(this).addClass('ui-state-hover');
                        if (this.className.indexOf('ui-datepicker-prev') != -1) $(this).addClass('ui-datepicker-prev-hover');
                        if (this.className.indexOf('ui-datepicker-next') != -1) $(this).addClass('ui-datepicker-next-hover');
                    }
                })
            .end()
            .find('.' + this._dayOverClass + ' a')
                .trigger('mouseover')
            .end();
        var numMonths = this._getNumberOfMonths(inst);
        var cols = numMonths[1];
        var width = 17;
        if (cols > 1)
            inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');
        else
            inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');
        inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? 'add' : 'remove') +
            'Class']('ui-datepicker-multi');
        inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
            'Class']('ui-datepicker-rtl');
        if (inst == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
                inst.input.is(':visible') && !inst.input.is(':disabled'))
            inst.input.focus();

        // Reload the time control when changing something in the input text field.
        this._beforeShow(inst.input, inst);
    };

    $.datepicker._beforeShow = function (input, inst) {
        var beforeShow = this._get(inst, 'beforeShow');
        if (beforeShow)
            beforeShow.apply((inst.input ? inst.input[0] : null), [inst.input, inst]);
    };

    //#######################################################################################
    // third bad hack :/ override datepicker so it allows spaces and colan in the input field
    //#######################################################################################
    $.datepicker._doKeyPress = function (event) {
        var inst = $.datepicker._getInst(event.target);
        if ($.datepicker._get(inst, 'constrainInput')) {
            var dateChars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
            var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);
            // keyCode == 58 => ":"
            // keyCode == 32 => " "
            return event.ctrlKey || (chr < ' ' || !dateChars || dateChars.indexOf(chr) > -1 || event.keyCode == 58 || event.keyCode == 32);
        }
    };

})(jQuery);