/**
 * @version $Id$
 * @uses $ jQuery
 * @uses _ Underscore
 */

"use strict";

qs.defineNS('app.event.admin');

app.event.admin.Form = qs.createObject();
app.event.admin.Form.prototype = {
    initialize: function (options) {
        this.eventNS = 'eventAdmin';

        this.options = $.extend({
            formId: undefined,
            /** @type {Array} List of relation compatible with jQuery.dynamicForm format */
            relations: undefined,
            timeDefaults: undefined
        }, options);

        this.form = $('#' + this.options.formId);
        this.startDate = $('#_startDate');
        this.registrationStartDate = $('#_registrationStartDate');
        this.registrationEndDate = $('#_registrationEndDate');

        this.endDate = $('#_endDate');

        $(this.form).dynamicForm({
            relations: this.options.relations
        });

        this.startDate
            .datepicker('option', 'onClose', _.bind(this.onStartDateChange, this))
            .on('change.' + this.eventNS, _.bind(this.onStartDateChange, this));

        this.endDate
            .datepicker('option', 'onClose', _.bind(this.onEndDateChange, this))
            .on('change.' + this.eventNS, _.bind(this.onEndDateChange, this));

        this.registrationStartDate.on('change.' + this.eventNS, _.bind(this.onRegistrationStartDateChange, this))
        this.registrationEndDate.on('change.' + this.eventNS, _.bind(this.onRegistrationEndDateChange, this))

        return this;
    },

    /**
     * Used by relations config in "AbstractForm->_initRelations()"
     * /site/App/Event/Admin/Form/AbstractForm.php
     * @static
     */
    switchToSingle: function () {
        var radioMulti = $('#durationType-multiple'), radioSingle = $('#durationType-single'),
            date1, startDate = $('#_startDate'), endDate = $('#_endDate');

        if (radioMulti.is(':checked')) {
            radioMulti.removeAttr('checked');
            radioSingle.attr('checked', 'checked').change();
        }

        if ((date1 = startDate.datepicker('getDate')) && +date1 !== +endDate.datepicker('getDate')) {
            endDate.datepicker('setDate', date1).datepicker('refresh').trigger('change');
        }

        $('label[for="startDate"]').text('Date');

        return true;
    },

    /**
     * Used by relations config in "AbstractForm->_initRelations()"
     * /site/App/Event/Admin/Form/AbstractForm.php
     * @static
     */
    switchToMulti: function () {
        $('label[for="startDate"]').text('Start Date');
        return true;
    },
    elementTimeSetValue: function(selectIdPrefix, strValue) {
        if (!strValue) {
            return false;
        }
        var timeParts = strValue.split(':');
        var timeVals = {
            g: '',
            i: '',
            a: ''
        };
        if (timeParts.length > 1) {
            timeVals.g = parseInt(timeParts[0]);
            if (timeVals.g > 24) timeVals.g = 0;
            var minutes= parseInt(timeParts[1]);
            timeVals.i = (minutes < 15) ? '00' : (minutes < 30) ? '15' : (minutes < 45) ? '30' : '45';
            if (timeVals.g <= 12) {
                timeVals.a = 'am';
            } else {
                timeVals.g -= 12;
                timeVals.a = 'pm';
            }
        }

        $('#' + selectIdPrefix + '-g').val(timeVals.g);
        $('#' + selectIdPrefix + '-i').val(timeVals.i);
        $('#' + selectIdPrefix + '-a').val(timeVals.a);
    },
    onRegistrationStartDateChange: function (event) {
        var emptyFlag = (!$('#registrationStartTime_g').val());
        if (this.registrationStartDate.val() && emptyFlag) {
            this.elementTimeSetValue('registrationStartTime', this.options.timeDefaults[0]);
        } else {
            this.elementTimeSetValue('registrationStartTime', '');
        }
    },
    onRegistrationEndDateChange:  function() {
        var emptyFlag = (!$('#registrationEndTime_g').val());
        if (this.registrationEndDate.val() && emptyFlag) {
            this.elementTimeSetValue('registrationEndTime', this.options.timeDefaults[1]);
        } else {
            this.elementTimeSetValue('registrationEndTime', '');
        }
    },
    /**
     * Service method, set required status visibility for fields labels
     * @param labelIdsArray ids of parent of label element
     */
    setLabelsDynamicRequiredStatus: function(labelIdsArray, required) {
        var requiredFlag = (required) | false;
        for(var i = 0, l = labelIdsArray.length; i < l; i++) {
            if (requiredFlag)
                $('#' + labelIdsArray[i] + ' > label').addClass('required');
            else
                $('#' + labelIdsArray[i] + ' > label').removeClass('required');
        }
    },
    /**
     * Service method, make required status not visible for all fields with dynamic required status
     */
    resetLabelsDRequiredStatus: function() {
        app.event.admin.Form.prototype.setLabelsDynamicRequiredStatus([
            'timeRanges-label',
            'registrationStartDate-label',
            'registrationStartTime-label',
            'registrationEndDate-label',
            'registrationEndTime-label',
            'location-label',
            'regularPrice-label',
            'memberPrice-label'
        ]);
    },
    resetFieldsErrors: function() {
        $('#event-form_elements .errors').html('');
    },
    onRegularTypeChanged: function() {
        app.event.admin.Form.prototype.resetFieldsErrors();
        app.event.admin.Form.prototype.resetLabelsDRequiredStatus();
    },
    onGroupTypeChanged: function() {
        app.event.admin.Form.prototype.resetFieldsErrors();
        app.event.admin.Form.prototype.resetLabelsDRequiredStatus();
    },
    onCommitteeTypeChanged: function() {
        app.event.admin.Form.prototype.resetFieldsErrors();
        app.event.admin.Form.prototype.setLabelsDynamicRequiredStatus([
            'timeRanges-label',
            'registrationStartDate-label',
            'registrationStartTime-label',
            'registrationEndDate-label',
            'registrationEndTime-label',
            'location-label',
            'regularPrice-label',
            'memberPrice-label'
        ], true);
        app.event.admin.Form.prototype.switchToSingle.call(this);
    },
    onOtherTypeChanged: function() {
        app.event.admin.Form.prototype.resetFieldsErrors();
        app.event.admin.Form.prototype.resetLabelsDRequiredStatus();
        app.event.admin.Form.prototype.setLabelsDynamicRequiredStatus([
            'registrationStartDate-label',
            'registrationStartTime-label',
            'registrationEndDate-label',
            'registrationEndTime-label',
            'regularPrice-label',
            'memberPrice-label'
        ], true);
    },
    onStartDateChange: function () {
        var date1, radioSingle = $('#durationType-single');
        if (radioSingle.is(':checked')) {
            date1 = this.startDate.datepicker('getDate');
            this.endDate.datepicker('setDate', date1).datepicker('refresh');
        }
        this.updateDuration();
        return true;
    },

    onEndDateChange: function () {
        this.updateDuration();
        return true;
    },
    updateDuration: function () {
        var duration, date1 = this.startDate.datepicker('getDate'), date2 = this.endDate.datepicker('getDate');
        if (date1 && date2) {
            // check date range
            if (date1 > date2) {
                Qs_Form.displayErrorsHtml(this.form.get(0), {timeRanges: []});
                duration = 0;
            } else {
                duration = (date2 - date1) / (24 * 60 * 60 * 1000) + 1;
            }
            // update duration
            duration = Math.abs(Math.floor(duration));
            $('#timeRanges').data('instance').setCount(duration);
        }
        return this;
    }
};