/* =========================================================

* bootstrap-timepicker.js
* http://www.github.com/jdewit/bootstrap-timepicker
* =========================================================
* Copyright 2012
*
* Created By:
* Joris de Wit @joris_dewit
*
* Contributions By:
* Gilbert @mindeavor
* Koen Punt info@koenpunt.nl
* Nek
* Chris Martin
* Dominic Barnes contact@dominicbarnes.us
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ========================================================= */

!function($) {

"use strict"; // jshint ;_;

/* TIMEPICKER PUBLIC CLASS DEFINITION
 * ================================== */
var Timepicker = function(element, options) {
    this.$element = $(element);
    this.options = $.extend({}, $.fn.timepicker.defaults, options, this.$element.data());
    this.minuteStep = this.options.minuteStep || this.minuteStep;
    this.secondStep = this.options.secondStep || this.secondStep;
    this.showMeridian = this.options.showMeridian || this.showMeridian;
    this.showSeconds = this.options.showSeconds || this.showSeconds;
    this.showInputs = this.options.showInputs || this.showInputs;
    this.disableFocus = this.options.disableFocus || this.disableFocus;
    this.template = this.options.template || this.template;
    this.modalBackdrop = this.options.modalBackdrop || this.modalBackdrop;
    this.defaultTime = this.options.defaultTime || this.defaultTime;
    this.open = false;
    this.init();
};

Timepicker.prototype = {

    constructor: Timepicker

    , init: function () {
        if (this.$element.parent().hasClass('input-append')) {
            this.$element.parent('.input-append').find('.add-on').on('click', $.proxy(this.showWidget, this));
            this.$element.on({
                focus: $.proxy(this.highlightUnit, this),
                click: $.proxy(this.highlightUnit, this),
                keypress: $.proxy(this.elementKeypress, this),
                blur: $.proxy(this.blurElement, this)
            });

        } else {
            if (this.template) {
                this.$element.on({
                    focus: $.proxy(this.showWidget, this),
                    click: $.proxy(this.showWidget, this),
                    blur: $.proxy(this.blurElement, this)
                });
            } else {
                this.$element.on({
                    focus: $.proxy(this.highlightUnit, this),
                    click: $.proxy(this.highlightUnit, this),
                    keypress: $.proxy(this.elementKeypress, this),
                    blur: $.proxy(this.blurElement, this)
                });
            }
        }

        this.$widget = $(this.getTemplate()).appendTo('body');

        this.$widget.on('click', $.proxy(this.widgetClick, this));

        if (this.showInputs) {
            this.$widget.find('input').on({
                click: function() { this.select(); },
                keypress: $.proxy(this.widgetKeypress, this),
                change: $.proxy(this.updateFromWidgetInputs, this)
            });
        }

        this.setDefaultTime(this.defaultTime);
    }

    , showWidget: function(e) {
        e.stopPropagation();
        e.preventDefault();

        if (this.open) {
            return;
        }

        this.$element.trigger('show');

        if (this.disableFocus) {
            this.$element.blur();
        }

        var pos = $.extend({}, this.$element.offset(), {
            height: this.$element[0].offsetHeight
        });

        this.updateFromElementVal();

        $('html')
            .trigger('click.timepicker.data-api')
            .one('click.timepicker.data-api', $.proxy(this.hideWidget, this));

        if (this.template === 'modal') {
            this.$widget.modal('show').on('hidden', $.proxy(this.hideWidget, this));
        } else {
            this.$widget.css({
                top: pos.top + pos.height
                , left: pos.left
            })

            if (!this.open) {
                this.$widget.addClass('open');
            }
        }

        this.open = true;
        this.$element.trigger('shown');
    }

    , hideWidget: function(){
        this.$element.trigger('hide');

        if (this.template === 'modal') {
            this.$widget.modal('hide');
        } else {
            this.$widget.removeClass('open');
        }
        this.open = false;
        this.$element.trigger('hidden');
    }

    , widgetClick: function(e) {
        e.stopPropagation();
        e.preventDefault();

        var action = $(e.target).closest('a').data('action');
        if (action) {
            this[action]();
            this.update();
        }
    }

    , widgetKeypress: function(e) {
        var input = $(e.target).closest('input').attr('name');

        switch (e.keyCode) {
            case 9: //tab
                if (this.showMeridian) {
                    if (input == 'meridian') {
                        this.hideWidget();
                    }
                } else {
                    if (this.showSeconds) {
                        if (input == 'second') {
                            this.hideWidget();
                        }
                    } else {
                        if (input == 'minute') {
                            this.hideWidget();
                        }
                    }
                }
            break;
            case 27: // escape
                this.hideWidget();
            break;
            case 38: // up arrow
                switch (input) {
                    case 'hour':
                        this.incrementHour();
                    break;
                    case 'minute':
                        this.incrementMinute();
                    break;
                    case 'second':
                        this.incrementSecond();
                    break;
                    case 'meridian':
                        this.toggleMeridian();
                    break;
                }
                this.update();
            break;
            case 40: // down arrow
                switch (input) {
                    case 'hour':
                        this.decrementHour();
                    break;
                    case 'minute':
                        this.decrementMinute();
                    break;
                    case 'second':
                        this.decrementSecond();
                    break;
                    case 'meridian':
                        this.toggleMeridian();
                    break;
                }
                this.update();
            break;
        }
    }

    , elementKeypress: function(e) {
        var input = this.$element.get(0);
        switch (e.keyCode) {
            case 0: //input
            break;
            case 9: //tab
                this.updateFromElementVal();
                if (this.showMeridian) {
                    if (this.highlightedUnit != 'meridian') {
                        e.preventDefault();
                        this.highlightNextUnit();
                    }
                } else {
                    if (this.showSeconds) {
                        if (this.highlightedUnit != 'second') {
                            e.preventDefault();
                            this.highlightNextUnit();
                        }
                    } else {
                        if (this.highlightedUnit != 'minute') {
                            e.preventDefault();
                            this.highlightNextUnit();
                        }
                    }
                }
            break;
            case 27: // escape
                this.updateFromElementVal();
            break;
            case 37: // left arrow
                this.updateFromElementVal();
                this.highlightPrevUnit();
            break;
            case 38: // up arrow
                switch (this.highlightedUnit) {
                    case 'hour':
                        this.incrementHour();
                    break;
                    case 'minute':
                        this.incrementMinute();
                    break;
                    case 'second':
                        this.incrementSecond();
                    break;
                    case 'meridian':
                        this.toggleMeridian();
                    break;
                }
                this.updateElement();
            break;
            case 39: // right arrow
                this.updateFromElementVal();
                this.highlightNextUnit();
            break;
            case 40: // down arrow
                switch (this.highlightedUnit) {
                    case 'hour':
                        this.decrementHour();
                    break;
                    case 'minute':
                        this.decrementMinute();
                    break;
                    case 'second':
                        this.decrementSecond();
                    break;
                    case 'meridian':
                        this.toggleMeridian();
                    break;
                }
                this.updateElement();
            break;
        }

        if (e.keyCode !== 0 && e.keyCode !== 8 && e.keyCode !== 9 && e.keyCode !== 46) {
            e.preventDefault();
        }
    }

    , setValues: function(time) {
        if (this.showMeridian) {
            var arr = time.split(' ');
            var timeArray = arr[0].split(':');
            this.meridian = arr[1];
        } else {
            var timeArray = time.split(':');
        }

        this.hour = parseInt(timeArray[0], 10);
        this.minute = parseInt(timeArray[1], 10);
        this.second = parseInt(timeArray[2], 10);

        if (isNaN(this.hour)) {
            this.hour = 0;
        }
        if (isNaN(this.minute)) {
            this.minute = 0;
        }

        if (this.showMeridian) {
            if (this.hour > 12) {
                this.hour = 12;
            } else if (this.hour < 1) {
                this.hour = 1;
            }

            if (this.meridian == 'am' || this.meridian == 'a') {
                this.meridian = 'AM';
            } else if (this.meridian == 'pm' || this.meridian == 'p') {
                this.meridian = 'PM';
            }

            if (this.meridian != 'AM' && this.meridian != 'PM') {
                this.meridian = 'AM';
            }
        } else {
             if (this.hour >= 24) {
                this.hour = 23;
            } else if (this.hour < 0) {
                this.hour = 0;
            }
        }

        if (this.minute < 0) {
            this.minute = 0;
        } else if (this.minute >= 60) {
            this.minute = 59;
        }

        if (this.showSeconds) {
            if (isNaN(this.second)) {
                this.second = 0;
            } else if (this.second < 0) {
                this.second = 0;
            } else if (this.second >= 60) {
                this.second = 59;
            }
        }

        if ( this.$element.val() != '' )
            this.updateElement();
        this.updateWidget();
    }

    , setMeridian: function(meridian) {
        if (meridian == 'a' || meridian == 'am' || meridian == 'AM' ) {
            this.meridian = 'AM';
        } else if (meridian == 'p' || meridian == 'pm' || meridian == 'PM' ) {
            this.meridian = 'PM';
        } else {
            this.updateWidget();
        }

        this.updateElement();
    }

    , setDefaultTime: function(defaultTime){
        if (defaultTime) {
            if (defaultTime === 'current') {
                var dTime = new Date();
                var hours = dTime.getHours();
                var minutes = Math.floor(dTime.getMinutes() / this.minuteStep) * this.minuteStep;
                var seconds = Math.floor(dTime.getSeconds() / this.secondStep) * this.secondStep;
                var meridian = "AM";
                if (this.showMeridian) {
                    if (hours === 0) {
                        hours = 12;
                    } else if (hours >= 12) {
                        if (hours > 12) {
                            hours = hours - 12;
                        }
                        meridian = "PM";
                    } else {
                       meridian = "AM";
                    }
                }
                this.hour = hours;
                this.minute = minutes;
                this.second = seconds;
                this.meridian = meridian;
            } else if (defaultTime === 'value') {
                this.setValues(this.$element.val());
            } else {
                this.setValues(defaultTime);
            }
            if ( this.$element.val() != '' )
                this.updateElement();
            this.updateWidget();
        } else {
            this.hour = 0;
            this.minute = 0;
            this.second = 0;
        }
    }

    , formatTime: function(hour, minute, second, meridian) {
        hour = hour < 10 ? '0' + hour : hour;
        minute = minute < 10 ? '0' + minute : minute;
        second = second < 10 ? '0' + second : second;

        return hour + ':' + minute + (this.showSeconds ? ':' + second : '') + (this.showMeridian ? ' ' + meridian : '');
    }

    , getTime: function() {
        return this.formatTime(this.hour, this.minute, this.second, this.meridian);
    }

    , setTime: function(time) {
        this.setValues(time);
        this.update();
    }

    , update: function() {
        this.updateElement();
        this.updateWidget();
    }

    , blurElement: function() {
      this.highlightedUnit = undefined;
      this.updateFromElementVal();
    }

    , updateElement: function() {
        var time = this.getTime();

        this.$element.val(time).change();

        switch (this.highlightedUnit) {
            case 'hour':
                this.highlightHour();
            break;
            case 'minute':
                this.highlightMinute();
            break;
            case 'second':
                this.highlightSecond();
            break;
            case 'meridian':
                this.highlightMeridian();
            break;
        }
    }

    , updateWidget: function() {
        if (this.showInputs) {
            this.$widget.find('input.bootstrap-timepicker-hour').val(this.hour < 10 ? '0' + this.hour : this.hour);
            this.$widget.find('input.bootstrap-timepicker-minute').val(this.minute < 10 ? '0' + this.minute : this.minute);
            if (this.showSeconds) {
                this.$widget.find('input.bootstrap-timepicker-second').val(this.second < 10 ? '0' + this.second : this.second);
            }
            if (this.showMeridian) {
                this.$widget.find('input.bootstrap-timepicker-meridian').val(this.meridian);
            }
        } else {
            this.$widget.find('span.bootstrap-timepicker-hour').text(this.hour);
            this.$widget.find('span.bootstrap-timepicker-minute').text(this.minute < 10 ? '0' + this.minute : this.minute);
            if (this.showSeconds) {
                this.$widget.find('span.bootstrap-timepicker-second').text(this.second < 10 ? '0' + this.second : this.second);
            }
            if (this.showMeridian) {
                this.$widget.find('span.bootstrap-timepicker-meridian').text(this.meridian);
            }
        }
    }

    , updateFromElementVal: function (e) {
        var time = this.$element.val();
        if (time) {
            this.setValues(time);
            this.updateWidget();
        }
    }

    , updateFromWidgetInputs: function () {
        var time = $('input.bootstrap-timepicker-hour', this.$widget).val() + ':' +
                   $('input.bootstrap-timepicker-minute', this.$widget).val() +
                   (this.showSeconds ?
                       ':' + $('input.bootstrap-timepicker-second', this.$widget).val()
                    : '') +
                   (this.showMeridian ?
                       ' ' + $('input.bootstrap-timepicker-meridian', this.$widget).val()
                    : '');

        this.setValues(time);
    }

    , getCursorPosition: function() {
        var input = this.$element.get(0);

        if ('selectionStart' in input) {
            // Standard-compliant browsers
            return input.selectionStart;
        } else if (document.selection) {
            // IE fix
            input.focus();
            var sel = document.selection.createRange();
            var selLen = document.selection.createRange().text.length;
            sel.moveStart('character', - input.value.length);

            return sel.text.length - selLen;
        }
    }

    , highlightUnit: function () {
        var input = this.$element.get(0);

        this.position = this.getCursorPosition();
        if (this.position >= 0 && this.position <= 2) {
            this.highlightHour();
        } else if (this.position >= 3 && this.position <= 5) {
            this.highlightMinute();
        } else if (this.position >= 6 && this.position <= 8) {
            if (this.showSeconds) {
                this.highlightSecond();
            } else {
                this.highlightMeridian();
            }
        } else if (this.position >= 9 && this.position <= 11) {
            this.highlightMeridian();
        }
    }

    , highlightNextUnit: function() {
        switch (this.highlightedUnit) {
            case 'hour':
                this.highlightMinute();
            break;
            case 'minute':
                if (this.showSeconds) {
                    this.highlightSecond();
                } else {
                    this.highlightMeridian();
                }
            break;
            case 'second':
                this.highlightMeridian();
            break;
            case 'meridian':
                this.highlightHour();
            break;
        }
    }

    , highlightPrevUnit: function() {
        switch (this.highlightedUnit) {
            case 'hour':
                this.highlightMeridian();
            break;
            case 'minute':
                this.highlightHour();
            break;
            case 'second':
                this.highlightMinute();
            break;
            case 'meridian':
                if (this.showSeconds) {
                    this.highlightSecond();
                } else {
                    this.highlightMinute();
                }
            break;
        }
    }

    , highlightHour: function() {
        this.highlightedUnit = 'hour';
        this.$element.get(0).setSelectionRange(0,2);
    }

    , highlightMinute: function() {
        this.highlightedUnit = 'minute';
        this.$element.get(0).setSelectionRange(3,5);
    }

    , highlightSecond: function() {
        this.highlightedUnit = 'second';
        this.$element.get(0).setSelectionRange(6,8);
    }

    , highlightMeridian: function() {
        this.highlightedUnit = 'meridian';
        if (this.showSeconds) {
            this.$element.get(0).setSelectionRange(9,11);
        } else {
            this.$element.get(0).setSelectionRange(6,8);
        }
    }

    , incrementHour: function() {
        if (this.showMeridian) {
            if (this.hour === 11) {
                this.toggleMeridian();
            } else if (this.hour === 12) {
                return this.hour = 1;
            }
        }
        if (this.hour === 23) {
            return this.hour = 0;
        }
        this.hour = this.hour + 1;
    }

    , decrementHour: function() {
        if (this.showMeridian) {
            if (this.hour === 1) {
                return this.hour = 12;
            }
            else if (this.hour === 12) {
                this.toggleMeridian();
            }
        }
        if (this.hour === 0) {
            return this.hour = 23;
        }
        this.hour = this.hour - 1;
    }

    , incrementMinute: function() {
        var newVal = this.minute + this.minuteStep - (this.minute % this.minuteStep);
        if (newVal > 59) {
            this.incrementHour();
            this.minute = newVal - 60;
        } else {
            this.minute = newVal;
        }
    }

    , decrementMinute: function() {
        var newVal = this.minute - this.minuteStep;
        if (newVal < 0) {
            this.decrementHour();
            this.minute = newVal + 60;
        } else {
            this.minute = newVal;
        }
    }

    , incrementSecond: function() {
        var newVal = this.second + this.secondStep - (this.second % this.secondStep);
        if (newVal > 59) {
            this.incrementMinute();
            this.second = newVal - 60;
        } else {
            this.second = newVal;
        }
    }

    , decrementSecond: function() {
        var newVal = this.second - this.secondStep;
        if (newVal < 0) {
            this.decrementMinute();
            this.second = newVal + 60;
        } else {
            this.second = newVal;
        }
    }

    , toggleMeridian: function() {
        this.meridian = this.meridian === 'AM' ? 'PM' : 'AM';

        this.update();
    }

    , getTemplate: function() {
        if (this.options.templates[this.options.template]) {
            return this.options.templates[this.options.template];
        }
        if (this.showInputs) {
            var hourTemplate = '<input type="text" name="hour" class="bootstrap-timepicker-hour" maxlength="2"/>';
            var minuteTemplate = '<input type="text" name="minute" class="bootstrap-timepicker-minute" maxlength="2"/>';
            var secondTemplate = '<input type="text" name="second" class="bootstrap-timepicker-second" maxlength="2"/>';
            var meridianTemplate = '<input type="text" name="meridian" class="bootstrap-timepicker-meridian" maxlength="2"/>';
        } else {
            var hourTemplate = '<span class="bootstrap-timepicker-hour"></span>';
            var minuteTemplate = '<span class="bootstrap-timepicker-minute"></span>';
            var secondTemplate = '<span class="bootstrap-timepicker-second"></span>';
            var meridianTemplate = '<span class="bootstrap-timepicker-meridian"></span>';
        }
        var templateContent = '<table class="'+ (this.showSeconds ? 'show-seconds' : '') +' '+ (this.showMeridian ? 'show-meridian' : '') +'">'+
                                   '<tr>'+
                                       '<td><a href="#" data-action="incrementHour"><i class="fa fa-chevron-up"></i></a></td>'+
                                       '<td class="separator">&nbsp;</td>'+
                                       '<td><a href="#" data-action="incrementMinute"><i class="fa fa-chevron-up"></i></a></td>'+
                                       (this.showSeconds ?
                                           '<td class="separator">&nbsp;</td>'+
                                           '<td><a href="#" data-action="incrementSecond"><i class="fa fa-chevron-up"></i></a></td>'
                                       : '') +
                                       (this.showMeridian ?
                                           '<td class="separator">&nbsp;</td>'+
                                           '<td class="meridian-column"><a href="#" data-action="toggleMeridian"><i class="fa fa-chevron-up"></i></a></td>'
                                       : '') +
                                   '</tr>'+
                                   '<tr>'+
                                       '<td>'+ hourTemplate +'</td> '+
                                       '<td class="separator">:</td>'+
                                       '<td>'+ minuteTemplate +'</td> '+
                                       (this.showSeconds ?
                                            '<td class="separator">:</td>'+
                                            '<td>'+ secondTemplate +'</td>'
                                       : '') +
                                       (this.showMeridian ?
                                            '<td class="separator">&nbsp;</td>'+
                                            '<td>'+ meridianTemplate +'</td>'
                                       : '') +
                                   '</tr>'+
                                   '<tr>'+
                                       '<td><a href="#" data-action="decrementHour"><i class="fa fa-chevron-down"></i></a></td>'+
                                       '<td class="separator"></td>'+
                                       '<td><a href="#" data-action="decrementMinute"><i class="fa fa-chevron-down"></i></a></td>'+
                                       (this.showSeconds ?
                                            '<td class="separator">&nbsp;</td>'+
                                            '<td><a href="#" data-action="decrementSecond"><i class="fa fa-chevron-down"></i></a></td>'
                                       : '') +
                                       (this.showMeridian ?
                                            '<td class="separator">&nbsp;</td>'+
                                            '<td><a href="#" data-action="toggleMeridian"><i class="fa fa-chevron-down"></i></a></td>'
                                       : '') +
                                   '</tr>'+
                               '</table>';

        var template;
        switch(this.options.template) {
            case 'modal':
                template = '<div class="bootstrap-timepicker modal hide fade in" style="top: 30%; margin-top: 0; width: 200px; margin-left: -100px;" data-backdrop="'+ (this.modalBackdrop ? 'true' : 'false') +'">'+
                               '<div class="modal-header">'+
                                   '<a href="#" class="close" data-dismiss="modal">×</a>'+
                                   '<h3>Pick a Time</h3>'+
                               '</div>'+
                               '<div class="modal-content">'+
                                    templateContent +
                               '</div>'+
                               '<div class="modal-footer">'+
                                   '<a href="#" class="btn btn-primary" data-dismiss="modal">Ok</a>'+
                               '</div>'+
                           '</div>';

            break;
            case 'dropdown':
                template = '<div class="bootstrap-timepicker dropdown-menu">'+
                                templateContent +
                           '</div>';
            break;

        }
        return template;
    }
};

/* TIMEPICKER PLUGIN DEFINITION
 * =========================== */

$.fn.timepicker = function (option) {
    return this.each(function () {
        var $this = $(this)
        , data = $this.data('timepicker')
        , options = typeof option == 'object' && option;
        if (!data) {
            $this.data('timepicker', (data = new Timepicker(this, options)));
        }
        if (typeof option == 'string') {
            data[option]();
        }
    })
}

$.fn.timepicker.defaults = {
  minuteStep: 15
, secondStep: 15
, disableFocus: false
, defaultTime: 'current'
, showSeconds: false
, showInputs: true
, showMeridian: true
, template: 'dropdown'
, modalBackdrop: false
, templates: {} // set custom templates
}

$.fn.timepicker.Constructor = Timepicker

}(window.jQuery);