//= require jquery
//= require jquery_ujs

/** Javascript for selection. */

jQuery(function($){
    $(document).
        on('change', '.persistent-selection:checkbox', function(e) {
            $(document).trigger('selections-updated');
        });

    $('#selection-form-content').on("click", function(e) {
        e.stopPropagation();
    });
});

function dispatch_selection_action() {
    // Build a new "href" attribute for this link by starting with the
    // "data-href" attribute and appending ?foo[]=bar&foo[]=baz (or
    // &foo=... as appropriate) to reflect the current object
    // selections.
    var data = [];
    var param_name = $(this).attr('data-selection-param-name');
    var href = $(this).attr('data-href');
    if ($(this).closest('.disabled').length > 0) {
        return false;
    }
    $(this).
        closest('.selection-action-container').
        find(':checkbox:checked:visible').
        each(function() {
            data.push({name: param_name, value: $(this).val()});
        });
    if (href.indexOf('?') >= 0)
        href += '&';
    else
        href += '?';
    href += $.param(data, true);
    $(this).attr('href', href);
    return true;
}

function enable_disable_selection_actions() {
    var $container = $(this);
    var $checked = $('.persistent-selection:checkbox:checked', $container);
    $('[data-selection-action]', $container).
        closest('div.btn-group-sm').
        find('ul li').
        toggleClass('disabled', ($checked.length == 0));
    $('[data-selection-action=compare]', $container).
        closest('li').
        toggleClass('disabled',
                    ($checked.filter('[value*=-d1hrv-]').length < 2) ||
                    ($checked.not('[value*=-d1hrv-]').length > 0));
    <% unless Group.copies_to_projects? %>
        $('[data-selection-action=copy]', $container).
            closest('li').
            toggleClass('disabled',
                        ($checked.filter('[value*=-j7d0g-]').length > 0) ||
                        ($checked.length < 1));
    <% end %>
    $('[data-selection-action=combine-project-contents]', $container).
        closest('li').
        toggleClass('disabled',
                    ($checked.filter('[value*=-4zz18-]').length < 1) ||
                    ($checked.length != $checked.filter('[value*=-4zz18-]').length));
}

$(document).
    on('selections-updated', function() {
        $('.selection-action-container').each(enable_disable_selection_actions);
    }).
    on('ready ajax:complete', function() {
        $('[data-selection-action]').
            off('click', dispatch_selection_action).
            on('click', dispatch_selection_action);
        $(this).trigger('selections-updated');
    });