{% extends app.request.xmlHttpRequest ? 'form.html.twig' : 'base.html.twig' %}
{% import "macros/widgets.html.twig" as widgets %}

{% block main %}
    {% if timesheet.exported %}
        {{ widgets.alert('warning', ('timesheet.locked.warning'|trans({}, 'flashmessages')), ('warning'|trans({}, 'flashmessages')), 'warning') }}
    {% endif %}
    {% set formEditTemplate = app.request.xmlHttpRequest ? 'default/_form_modal.html.twig' : 'default/_form.html.twig' %}
    {% set formOptions = {
        'title': (timesheet.id ? 'timesheet.edit'|trans : 'create'|trans),
        'form': form,
        'back': path(route_back)
    } %}
    {% embed formEditTemplate with formOptions %}
        {% set length = 6 %}
        {% if form.begin is defined and form.end is defined and form.duration is defined %}
            {% set length = 5 %}
        {% elseif form.begin is defined and form.end is defined and form.duration is not defined %}
            {% set length = 6 %}
        {% elseif form.begin is defined and form.end is not defined and form.duration is defined %}
            {% set length = 10 %}
        {% elseif form.begin is not defined and form.end is defined and form.duration is defined %}
            {% set length = 10 %}
        {% endif %}
        {% block form_body %}
            {% if form.begin is defined or form.end is defined or form.duration is defined %}
            <div class="row">
                {% if form.begin is defined %}
                    <div class="col-md-{{ length }}">
                        {{ form_row(form.begin) }}
                    </div>
                {% endif %}
                {% if form.end is defined %}
                    <div class="col-md-{{ length }}">
                        {{ form_row(form.end) }}
                    </div>
                {% endif %}
                {% if form.duration is defined %}
                    <div class="col-md-2">
                        {{ form_row(form.duration) }}
                    </div>
                {% endif %}
            </div>
            {% endif %}
            {% if form.customer is defined %}
                {{ form_row(form.customer) }}
            {% endif %}
            {% if form.project is defined %}
                {{ form_row(form.project) }}
            {% endif %}
            {% if form.activity is defined %}
                {{ form_row(form.activity) }}
            {% endif %}
            {% if form.description is defined %}
                {{ form_row(form.description) }}
            {% endif %}
            {% if form.tags is defined %}
                {{ form_row(form.tags) }}
            {% endif %}
            {% if form.user is defined %}
                {{ form_row(form.user) }}
            {% endif %}
            {% if form.users is defined or form.teams is defined %}
                {% set uLength = 12 %}
                {% if form.users is defined and form.teams is defined %}
                    {% set uLength = 6 %}
                {% endif %}
                <div class="row">
                {% if form.users is defined %}
                    <div class="col-md-{{ uLength }}">
                        {{ form_row(form.users) }}
                    </div>
                {% endif %}
                {% if form.teams is defined %}
                    <div class="col-md-{{ uLength }}">
                        {{ form_row(form.teams) }}
                    </div>
                {% endif %}
                </div>
            {% endif %}
            {% if form.fixedRate is defined and form.hourlyRate is defined %}
            <div class="row">
                <div class="col-md-6">
                    {{ form_row(form.fixedRate) }}
                </div>
                <div class="col-md-6">
                    {{ form_row(form.hourlyRate) }}
                </div>
            </div>
            {% endif %}
            {% if form.metaFields is defined and form.metaFields is not empty %}
                {% for meta in form.metaFields|sort((a, b) => a.vars.data.order <=> b.vars.data.order) %}
                    {{ form_row(meta) }}
                {% endfor %}
            {% endif %}
            {% if form.exported is defined or form.billable is defined %}
                {% set ebLength = (form.exported is defined and form.billable is defined) ? 6 : 12 %}
                <div class="row">
                    {% if form.exported is defined %}
                    <div class="col-md-{{ ebLength }}">
                        {{ form_row(form.exported) }}
                    </div>
                    {% endif %}
                    {% if form.billable is defined %}
                    <div class="col-md-{{ ebLength }}">
                        {{ form_row(form.billable) }}
                    </div>
                    {% endif %}
                </div>
            {% endif %}
            {{ form_widget(form) }}
        {% endblock %}
        {% block form_after %}
            {% if form.begin is defined and form.end is defined and form.duration is defined %}
                {% set blockPrefix = form.vars.id %}
                <script type="text/javascript">
                    $('body').on('change', '#{{ blockPrefix }}_begin', function(ev) {
                        changedBegin($(this).val());
                    });

                    $('body').on('change', '#{{ blockPrefix }}_end', function(ev) {
                        changedEnd($(this).val());
                    });

                    $('body').on('change', '#{{ blockPrefix }}_duration', function(ev) {
                        changedDuration();
                    });

                    function getDurationField()
                    {
                        return document.getElementById('{{ blockPrefix }}_duration');
                    }

                    {#
                        Ruleset: 
                        - invalid begin => skip
                        - empty end => set end to begin (only if duration > 0 = running record)
                        - invalid end => skip
                        - calculate duration 
                    #}

                    function changedBegin(value)
                    {
                        var endField = document.getElementById('{{ blockPrefix }}_end');
                        var format = endField.dataset.format;
                        var momentDuration = getParsedDuration();

                        var momentBegin = moment(value, format);
                        if (!momentBegin.isValid()) {
                            setDurationAsString(null);
                        }

                        if (endField.value === '' && momentDuration.asSeconds() > 0) {
                            applyDateToField(endField, momentBegin, format);
                        }

                        var momentEnd = moment(endField.value, format);
                        if (!momentEnd.isValid()) {
                            return;
                        }
                        
                        if (momentEnd.isBefore(momentBegin)) {
                            applyDateToField(endField, momentBegin.add(momentDuration), format);
                        }

                        momentBegin = moment(value, format);
                        momentEnd = moment(endField.value, format);
                        
                        var durationMoment = moment.duration(momentEnd.diff(momentBegin));

                        setDurationAsString(durationMoment);
                    }

                    {#
                        Ruleset: 
                        - invalid end => skip
                        - empty begin => set begin to end
                        - invalid begin => skip
                        - calculate duration 
                    #}

                    function changedEnd(value)
                    {
                        var beginField = document.getElementById('{{ blockPrefix }}_begin');
                        var format = beginField.dataset.format;
                        var momentDuration = getParsedDuration();

                        var momentEnd = moment(value, format);
                        if (!momentEnd.isValid()) {
                            setDurationAsString(null);
                        }

                        if (beginField.value === '') {
                            applyDateToField(beginField, momentEnd, format);
                        }

                        var momentBegin = moment(beginField.value, format);
                        if (!momentBegin.isValid()) {
                            return;
                        }

                        if (momentEnd.isBefore(momentBegin)) {
                            applyDateToField(beginField, momentEnd.subtract(momentDuration), format);
                        }

                        momentBegin = moment(beginField.value, format);
                        momentEnd = moment(value, format);

                        var durationMoment = moment.duration(momentEnd.diff(momentBegin));

                        setDurationAsString(durationMoment);
                    }

                    {#
                        Ruleset: 
                        - invalid duration => skip
                        - if begin and end are empty: set begin to now and end to duration
                        - if begin is empty and end is not empty: set begin to end minus duration
                        - if begin is not empty and end is empty and duration is > 0 (running records = 0): set end to begin plus duration
                    #}

                    function changedDuration()
                    {
                        var momentDuration = getParsedDuration();
                        if (!momentDuration.isValid()) {
                            return;
                        }
                        
                        var beginField = document.getElementById('{{ blockPrefix }}_begin');
                        var endField = document.getElementById('{{ blockPrefix }}_end');
                        var format = endField.dataset.format;
                        var begin = beginField.value;
                        var end = endField.value;
                        var duration = momentDuration.asSeconds();

                        if (begin === '' && end === '') {
                            applyDateToField(beginField, moment(), format);
                            applyDateToField(endField, moment(beginField.value, format).add(duration, 'seconds'), format); 
                        } else if (begin === '' && end !== '') {
                            applyDateToField(beginField, moment(end, format).subtract(duration, 'seconds'), format);
                        } else if (begin !== '' && duration > 0) {
                            applyDateToField(endField, moment(beginField.value, format).add(duration, 'seconds'), format); 
                        }
                    }

                    {# writes the value of a moment-duration object as human readable string into the duration field #}
                    function setDurationAsString(durationMoment)
                    {
                        if (durationMoment === null) {
                            getDurationField().value = '';
                            return;
                        }

                        if (!durationMoment.isValid()) {
                            return;
                        }

                        var hours = Math.floor(durationMoment.asHours());
                        if (hours < 10) {
                            hours = '0' + hours;
                        }

                        getDurationField().value = hours + ':' + ('0' + durationMoment.minutes()).slice(-2);
                    }

                    {# returns a moment duration object from the duration input field #}
                    function getParsedDuration()
                    {
                        var duration = getDurationField().value.toUpperCase();
                        var momentDuration = moment.duration(NaN);

                        if (duration.indexOf(':') !== -1) {
                            momentDuration = moment.duration(duration);
                        } else if (duration.indexOf('.') !== -1 || duration.indexOf(',') !== -1) {
                            duration = duration.replace(/,/, '.');
                            duration = parseFloat(duration) * 3600;
                            momentDuration = moment.duration('PT' + duration + 'S');
                        } else if (duration.indexOf('H') !== -1 || duration.indexOf('M') !== -1 || duration.indexOf('S') !== -1) {
                            momentDuration = moment.duration('PT' + duration);
                        }

                        return momentDuration;
                    }
                    
                    function applyDateToField(field, momentObj, format)
                    {
                        field.value = momentObj.format(format);
                        if (jQuery(field).data('daterangepicker') !== undefined) {
                            jQuery(field).data('daterangepicker').setStartDate(momentObj);
                            jQuery(field).data('daterangepicker').setEndDate(momentObj);
                            {# make sure that the project list is reloaded and the dates can be compared against the project end date #}
                            jQuery('#{{ blockPrefix }}_customer').trigger('change');
                        }
                    }
                </script>
            {% endif %}
        {% endblock %}
    {% endembed %}
{% endblock %}