{% extends "core/base.jinja" %}
{% from "core/macros.jinja" import paginate %}

{%- block additional_css -%}
    <link rel="stylesheet" href="{{ scss('sas/album.scss') }}">
{%- endblock -%}

{% block title %}
    {% trans %}SAS{% endtrans %}
{% endblock %}

{% macro print_path(file) %}
    {% if file and file.parent %}
        {{ print_path(file.parent) }}
        <a href="{{ url('sas:album', album_id=file.id) }}">{{ file.get_display_name() }}</a> /
    {% endif %}
{% endmacro %}


{% block content %}
    <code>
        <a href="{{ url('sas:main') }}">SAS</a> / {{ print_path(album.parent) }} {{ album.get_display_name() }}
    </code>

    {% set edit_mode = user.can_edit(album) %}
    {% set start = timezone.now() %}

    {% if edit_mode %}
        <form action="" method="post" enctype="multipart/form-data">
            {% csrf_token %}

            <div class="album-navbar">
                <h3>{{ album.get_display_name() }}</h3>

                <div class="toolbar">
                    <a href="{{ url('sas:album_edit', album_id=album.id) }}">{% trans %}Edit{% endtrans %}</a>
                    <input name="delete" type="submit" value="{% trans %}Delete{% endtrans %}">
                    <input name="cut" type="submit" value="{% trans %}Cut{% endtrans %}">
                    <input {% if not clipboard %}disabled{% endif %} name="paste" type="submit" value="{% trans %}Paste{% endtrans %}">
                </div>
            </div>

            {% if clipboard %}
                <div class="clipboard">
                    {% trans %}Clipboard: {% endtrans %}
                    <ul>
                        {% for f in clipboard %}
                            <li>{{ f.get_full_path() }}</li>
                        {% endfor %}
                    </ul>
                    <input name="clear" type="submit" value="{% trans %}Clear clipboard{% endtrans %}">
                </div>
            {% endif %}
    {% endif %}

    {% if album.children_albums.count() > 0 %}
        <h4>{% trans %}Albums{% endtrans %}</h4>
        <div class="albums">
            {% for a in album.children_albums.order_by('-date') %}
                {% if a.can_be_viewed_by(user) %}
                    <a href="{{ url('sas:album', album_id=a.id) }}">
                        <div
                            class="album{% if not a.is_moderated %} not_moderated{% endif %}"
                            style="background-image: url('{% if a.file %}{{ a.get_download_url() }}{% else %}{{ static('core/img/sas.jpg') }}{% endif %}');"
                        >
                            {% if not a.is_moderated %}
                                <div class="overlay">&nbsp;</div>
                                <div class="text">{% trans %}To be moderated{% endtrans %}</div>
                            {% else %}
                                <div class="text">{{ a.name }}</div>
                            {% endif %}
                        </div>
                        {% if edit_mode %}
                            <input type="checkbox" name="file_list" value="{{ a.id }}">
                        {% endif %}
                    </a>
                {% endif %}
            {% endfor %}
        </div>

        <br>
    {% endif %}

    <h4>{% trans %}Pictures{% endtrans %}</h4>
    {% if pictures | length != 0 %}
        <div class="photos">
            {% for p in pictures %}
                {% if p.can_be_viewed_by(user) %}
                    <a href="{{ url('sas:picture', picture_id=p.id) }}#pict">
                        <div
                            class="photo {% if p.is_vertical %}vertical{% endif %}"
                            style="background-image: url('{{ p.get_download_thumb_url() }}')"
                        >
                            {% if not p.is_moderated %}
                                <div class="overlay">&nbsp;</div>
                                <div class="text">{% trans %}To be moderated{% endtrans %}</div>
                            {% else %}
                                <div class="text">&nbsp;</div>
                            {% endif %}
                        </div>
                        {% if edit_mode %}
                            <input type="checkbox" name="file_list" value="{{ p.id }}">
                        {% endif %}
                    </a>
                {% endif %}
            {% endfor %}
        </div>
    {% else %}
        {% trans %}This album does not contain any photos.{% endtrans %}
    {% endif %}

    {% if pictures.has_previous() or pictures.has_next() %}
        <div class="paginator">
            {{ paginate(pictures, paginator) }}
        </div>
    {% endif %}

    {% if edit_mode %}
        </form>
    {% endif %}

    {% if user.is_in_group(settings.SITH_GROUP_SAS_ADMIN_ID) %}
        <form class="add-files" id="upload_form" action="" method="post" enctype="multipart/form-data">
            {% csrf_token %}
            <div class="inputs">
                {{ form.as_p() }}

                <input type="submit" value="{% trans %}Upload{% endtrans %}" />
            </div>
        </form>
    {% endif %}

    <hr>

    <p style="font-size: small; color: #444;">{% trans %}Template generation time: {% endtrans %}
    {{ timezone.now() - start }}
    </p>
{% endblock %}

{% block script %}
    {{ super() }}
    <script>
    $("form#upload_form").submit(function (event) {
        let formData = new FormData($(this)[0]);

        if(!formData.get('album_name') && !formData.get('images').name)
            return false;

        if(!formData.get('images').name) {
            return true;
        }

        event.preventDefault();

        let errorList;
        if((errorList = this.querySelector('#upload_form ul.errorlist.nonfield')) === null) {
            errorList = document.createElement('ul');
            errorList.classList.add('errorlist', 'nonfield');
            this.insertBefore(errorList, this.firstElementChild);
        }

        while(errorList.childElementCount > 0)
            errorList.removeChild(errorList.firstElementChild);

        let progress;
        if((progress = this.querySelector('progress')) === null) {
            progress = document.createElement('progress');
            progress.value = 0;
            let p = document.createElement('p');
            p.appendChild(progress);
            this.insertBefore(p, this.lastElementChild);
        }

        let dataHolder;

        if(formData.get('album_name')) {
            dataHolder = new FormData();
            dataHolder.set('csrfmiddlewaretoken', '{{ csrf_token }}');
            dataHolder.set('album_name', formData.get('album_name'));
            $.ajax({
                method: 'POST',
                url: "{{ url('sas:album_upload', album_id=object.id) }}",
                data: dataHolder,
                processData: false,
                contentType: false,
                success: onSuccess
            });
        }

        let images = formData.getAll('images');
        let imagesCount = images.length;
        let completeCount = 0;

        let poolSize = 1;
        let imagePool = [];

        while(images.length > 0 && imagePool.length < poolSize) {
            let image = images.shift();
            imagePool.push(image);
            sendImage(image);
        }

        function sendImage(image) {
            dataHolder = new FormData();
            dataHolder.set('csrfmiddlewaretoken', '{{ csrf_token }}');
            dataHolder.set('images', image);

            $.ajax({
                method: 'POST',
                url: "{{ url('sas:album_upload', album_id=object.id) }}",
                data: dataHolder,
                processData: false,
                contentType: false,
            })
                .fail(onSuccess.bind(undefined, image))
                .done(onSuccess.bind(undefined, image))
                .always(next.bind(undefined, image));
        }

        function next(image, _, __) {
            let index = imagePool.indexOf(image);
            let nextImage = images.shift();

            if(index !== -1)
                imagePool.splice(index, 1);

            if(nextImage) {
                imagePool.push(nextImage);
                sendImage(nextImage);
            }
        }

        function onSuccess(image, data, _, __) {
            let errors = [];

            if ($(data.responseText).find('.errorlist.nonfield')[0])
                errors = Array.from($(data.responseText).find('.errorlist.nonfield')[0].children);

            while(errors.length > 0)
                errorList.appendChild(errors.shift());

            progress.value = ++completeCount / imagesCount;
            if(progress.value === 1 && errorList.children.length === 0)
                document.location.reload()
        }
    });
    </script>
{% endblock %}