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

{% 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 %}
<a href="{{ url('sas:main') }}">SAS</a> > {{ print_path(album.parent) }} {{ album.get_display_name() }}
<h3>{{ album.get_display_name() }}</h3>
<a href="{{ url('sas:album_edit', album_id=album.id) }}">{% trans %}Edit{% endtrans %}</a><br>
{% set start = timezone.now() %}
<hr>
{% set edit_mode = user.can_edit(album) %}
{% if edit_mode %}
<form action="" method="post" enctype="multipart/form-data" style="width: 100%;">
    {% csrf_token %}
    <p>
        <input name="delete" type="submit" value="{% trans %}Delete{% endtrans %}"> |
        <input name="clear" type="submit" value="{% trans %}Clear clipboard{% endtrans %}"> |
        <input name="cut" type="submit" value="{% trans %}Cut{% endtrans %}"> |
        <input name="paste" type="submit" value="{% trans %}Paste{% endtrans %}">
    </p>
    {% if clipboard %}
    <p>{% trans %}Clipboard: {% endtrans %}
        <ul>
        {% for f in clipboard %}
            <li>{{ f.get_full_path() }}</li>
        {% endfor %}
        </ul>
    </p>
    {% endif %}
{% endif %}
    <div>
        {% for a in album.children_albums.order_by('-date') %}
        <div style="display: inline-block;">
        {% if edit_mode %}
        <input type="checkbox" name="file_list" value="{{ a.id }}">
        {% endif %}
        {% if user.can_view(a) %}
        <a href="{{ url("sas:album", album_id=a.id) }}" style="display: inline-block">
            <div class="album{% if not a.is_moderated %} not_moderated{% endif %}">
            <div>
            {% if a.file %}
            <img src="{{ a.get_download_url() }}" alt="{% trans %}preview{% endtrans %}">
            {% else %}
            <img src="{{ static('core/img/sas.jpg') }}" alt="{% trans %}preview{% endtrans %}">
            {% endif %}
            </div>
            {{ a.name }}
        </div>
        </a>
        {% endif %}
        </div>
        {% endfor %}
    </div>
    <div>
        {% for p in pictures %}
        <div style="display: inline-block;">
        {% if edit_mode %}
        <input type="checkbox" name="file_list" value="{{ p.id }}">
        {% endif %}
        {% if user.can_view(p) %}
        <div class="picture{% if not p.is_moderated %} not_moderated{% endif %}">
            <a href="{{ url("sas:picture", picture_id=p.id) }}#pict">
                <img src="{{ p.get_download_thumb_url() }}" alt="{{ p.get_display_name() }}" />
            </a>
        </div>
        {% endif %}
        </div>
        {% endfor %}
    </div>
    <br>
    {{ paginate(pictures, paginator) }}
{% if edit_mode %}
</form>
{% endif %}
<form id="upload_form" action="" method="post" enctype="multipart/form-data">
    {% csrf_token %}
    {{ form.as_p() }}
    <p><input type="submit" value="{% trans %}Upload{% endtrans %}" /></p>
</form>
<p style="font-size: small; color: #444;">{% trans %}Template generation time: {% endtrans %}
{{ timezone.now() - start }}
</p>
{% endblock %}

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

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

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

    event.preventDefault();

    var 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);

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

    var 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
        });
    }

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

    var poolSize = 1;
    var imagePool = [];

    while(images.length > 0 && imagePool.length < poolSize) {
        var 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, status, jqXHR) {
        var index;
        if(index = imagePool.indexOf(image) !== -1) {
            imagePool.splice(index, 1);
        }
        var nextImage;
        if(nextImage = images.shift()) {
            imagePool.push(nextImage);

            sendImage(nextImage);
        }
    }

    function onSuccess(image, data, status, jqXHR) {
        if ($(data.responseText).find('.errorlist.nonfield')[0])
            var errors = Array.from($(data.responseText).find('.errorlist.nonfield')[0].children);
        else
            var errors = []
        while(errors.length > 0)
            errorlist.appendChild(errors.shift());
        progress.value = ++completeCount / imagesCount;
        if(progress.value === 1 && errorlist.children.length === 0)
            document.location.reload(true)
    }
});
</script>
{% endblock %}