function Header(el) {
    this.el = el;

    var $buttons = this.el.find('.openwebrx-main-buttons').find('[data-toggle-panel]').filter(function(){
        // ignore buttons when the corresponding panel is not in the DOM
        return $('#' + $(this).data('toggle-panel'))[0];
    });

    $buttons.css({display: 'block'}).click(function () {
        toggle_panel($(this).data('toggle-panel'));
    });

    this.init_rx_photo();
    this.download_details();
};

Header.prototype.setDetails = function(details) {
    this.el.find('.webrx-rx-title').html(details['receiver_name']);
    this.el.find('.webrx-rx-desc').html(details['receiver_location'] + ' | Loc: ' + details['locator'] + ', ASL: ' + details['receiver_asl'] + ' m');
    this.el.find('.webrx-rx-photo-title').html(details['photo_title']);
    this.el.find('.webrx-rx-photo-desc').html(details['photo_desc']);
};

Header.prototype.init_rx_photo = function() {
    this.rx_photo_state = 0;

    $.extend($.easing, {
        easeOutCubic:function(x) {
            return 1 - Math.pow( 1 - x, 3 );
        }
    });

    $('.webrx-top-container').find('.openwebrx-photo-trigger').click(this.toggle_rx_photo.bind(this));
};

Header.prototype.close_rx_photo = function() {
    this.rx_photo_state = 0;
    this.el.find('.openwebrx-description-container').removeClass('expanded');
    this.el.find(".openwebrx-rx-details-arrow").removeClass('openwebrx-rx-details-arrow--up').addClass('openwebrx-rx-details-arrow--down');
}

Header.prototype.open_rx_photo = function() {
    this.rx_photo_state = 1;
    this.el.find('.openwebrx-description-container').addClass('expanded');
    this.el.find(".openwebrx-rx-details-arrow").removeClass('openwebrx-rx-details-arrow--down').addClass('openwebrx-rx-details-arrow--up');
}

Header.prototype.toggle_rx_photo = function(ev) {
    if (ev && ev.target && ev.target.tagName == 'A') {
        return;
    }
    if (this.rx_photo_state) {
        this.close_rx_photo();
    } else {
        this.open_rx_photo();
    }
};

Header.prototype.download_details = function() {
    var self = this;
    // TODO: make this use a relative URL again
    $.ajax('/api/receiverdetails').done(function(data){
        self.setDetails(data);
    });
};

$.fn.header = function() {
    if (!this.data('header')) {
        this.data('header', new Header(this));
    }
    return this.data('header');
};

$(function(){
    $('.webrx-top-container').header();
});