/**
 * Piwik - Web Analytics
 *
 * Visitor profile popup control.
 *
 * @link http://piwik.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */

(function ($, require) {

    var piwik = require('piwik'),
        exports = require('piwik/UI'),
        UIControl = exports.UIControl;

    /**
     * Sets up and handles events for the visitor profile popup.
     * 
     * @param {Element} element The HTML element returned by the Live.getVisitorLog controller
     *                          action. Should have the CSS class 'visitor-profile'.
     * @constructor
     */
    var VisitorProfileControl = function (element) {
        UIControl.call(this, element);
        this._setupControl();
        this._bindEventCallbacks();
    };

    /**
     * Initializes all elements w/ the .visitor-profile CSS class as visitor profile popups,
     * if the element has not already been initialized.
     */
    VisitorProfileControl.initElements = function () {
        UIControl.initElements(this, '.visitor-profile');
    };

    /**
     * Shows the visitor profile popover for a visitor ID. This should not be called directly.
     * Instead broadcast.propagateNewPopoverParameter('visitorProfile', visitorId) should be
     * called. This would make sure the popover would be opened if the URL is copied and pasted
     * in a new tab/window.
     * 
     * @param {String} visitorId The string visitor ID.
     */
    VisitorProfileControl.showPopover = function (visitorId) {
        var url = 'module=Live&action=getVisitorProfilePopup&visitorId=' + encodeURIComponent(visitorId);

        // if there is already a map shown on the screen, do not show the map in the popup. kartograph seems
        // to only support showing one map at a time.
        if ($('.RealTimeMap').length > 0) {
            url += '&showMap=0';
        }
        
        Piwik_Popover.createPopupAndLoadUrl(url, _pk_translate('Live_VisitorProfile'), 'visitor-profile-popup');
    };

    $.extend(VisitorProfileControl.prototype, UIControl.prototype, {

        _setupControl: function () {
            // focus the popup so it will accept key events
            this.$element.focus();

            // highlight the first visit
            $('.visitor-profile-visits>li:first-child', this.$element).addClass('visitor-profile-current-visit');
        },

        _bindEventCallbacks: function () {
            var self = this,
                $element = this.$element;

            $element.on('click', '.visitor-profile-close', function (e) {
                e.preventDefault();
                Piwik_Popover.close();
                return false;
            });

            $element.on('click', '.visitor-profile-more-info>a', function (e) {
                e.preventDefault();
                self._loadMoreVisits();
                return false;
            });

            $element.on('click', '.visitor-profile-see-more-cvars>a', function (e) {
                e.preventDefault();
                $('.visitor-profile-extra-cvars', $element).slideToggle();
                return false;
            });

            $element.on('click', '.visitor-profile-visit-title-row', function () {
                self._loadIndividualVisitDetails($('h2', this));
            });

            $element.on('click', '.visitor-profile-prev-visitor', function (e) {
                e.preventDefault();
                self._loadPreviousVisitor();
                return false;
            });

            $element.on('click', '.visitor-profile-next-visitor', function (e) {
                e.preventDefault();
                self._loadNextVisitor();
                return false;
            });

            $element.on('keydown', function (e) {
                if (e.which == 37) { // on <- key press, load previous visitor
                    self._loadPreviousVisitor();
                } else if (e.which == 39) { // on -> key press, load next visitor
                    self._loadNextVisitor();
                }
            });

            $element.on('click', '.visitor-profile-show-map', function (e) {
                e.preventDefault();
                self.toggleMap();
                return false;
            });

            // append token_auth dynamically to export link
            $element.on('mousedown', '.visitor-profile-export', function (e) {
                var url = $(this).attr('href');
                if (url.indexOf('&token_auth=') == -1) {
                    $(this).attr('href', url + '&token_auth=' + piwik.token_auth);
                }
            });

            // on hover, show export link (chrome won't let me do this via css :( )
            $element.on('mouseenter mouseleave', '.visitor-profile-id', function (e) {
                var $exportLink = $(this).find('.visitor-profile-export');
                if ($exportLink.css('visibility') == 'hidden') {
                    $exportLink.css('visibility', 'visible');
                } else {
                    $exportLink.css('visibility', 'hidden');
                }
            });
        },

        toggleMap: function () {
            var $element = this.$element,
                $map = $('.visitor-profile-map', $element);
            if (!$map.children().length) { // if the map hasn't been loaded, load it
                this._loadMap($map);
                return;
            }

            if ($map.is(':hidden')) { // show the map if it is hidden
                if ($map.height() < 1) {
                    $map.resize();
                }

                $map.slideDown('slow');
                var newLabel = 'Live_HideMap';

                piwikHelper.lazyScrollTo($('.visitor-profile-location', $element)[0], 400);
            } else { // hide the map if it is shown
                $map.slideUp('slow');
                var newLabel = 'Live_ShowMap';
            }

            newLabel = _pk_translate(newLabel).replace(' ', '\xA0');
            $('.visitor-profile-show-map', $element).text('(' + newLabel + ')');
        },

        _loadMap: function ($map) {
            var self = this;

            var ajax = new ajaxHelper();
            ajax.setUrl($map.attr('data-href'));
            ajax.setCallback(function (response) {
               $map.html(response);
               self.toggleMap();
            });
            ajax.setFormat('html');
            ajax.setLoadingElement($('.visitor-profile-location > p > .loadingPiwik', self.$element));
            ajax.send();
        },

        _loadMoreVisits: function () {
            var self = this,
                $element = this.$element;

            var loading = $('.visitor-profile-more-info > .loadingPiwik', $element);
            loading.show();

            var ajax = new ajaxHelper();
            ajax.addParams({
                module: 'Live',
                action: 'getVisitList',
                period: '',
                date: '',
                visitorId: $element.attr('data-visitor-id'),
                filter_offset: $('.visitor-profile-visits>li', $element).length
            }, 'GET');
            ajax.setCallback(function (response) {
                if (response == "") { // no more visits left
                    self._showNoMoreVisitsSpan();
                } else {
                    response = $(response);
                    loading.hide();

                    $('.visitor-profile-visits', $element).append(response);
                    if (response.filter('li').length < 10) {
                        self._showNoMoreVisitsSpan();
                    }

                    piwikHelper.lazyScrollTo($(response)[0], 400, true);
                }
            });
            ajax.setFormat('html');
            ajax.send();
        },

        _showNoMoreVisitsSpan: function () {
            var noMoreSpan = $('<span/>').text(_pk_translate('Live_NoMoreVisits')).addClass('visitor-profile-no-visits');
            $('.visitor-profile-more-info', this.$element).html(noMoreSpan);
        },

        _loadIndividualVisitDetails: function ($visitElement) {
            var self = this,
                $element = this.$element,
                visitId = $visitElement.attr('data-idvisit');

            $('.visitor-profile-avatar .loadingPiwik', $element).css('display', 'inline-block');
            piwikHelper.lazyScrollTo($('.visitor-profile-avatar', $element)[0], 400);

            var ajax = new ajaxHelper();
            ajax.addParams({
                module: 'Live',
                action: 'getSingleVisitSummary',
                visitId: visitId,
                idSite: piwik.idSite
            }, 'GET');
            ajax.setCallback(function (response) {
                $('.visitor-profile-avatar .loadingPiwik', $element).hide();

                $('.visitor-profile-current-visit', $element).removeClass('visitor-profile-current-visit');
                $visitElement.closest('li').addClass('visitor-profile-current-visit');

                var $latestVisitSection = $('.visitor-profile-latest-visit', $element);
                $latestVisitSection
                    .html(response)
                    .parent()
                    .effect('highlight', {color: '#FFFFCB'}, 1200);
            });
            ajax.setFormat('html');
            ajax.send();
        },

        _loadPreviousVisitor: function () {
            this._gotoAdjacentVisitor(this.$element.attr('data-prev-visitor'));
        },

        _loadNextVisitor: function () {
            this._gotoAdjacentVisitor(this.$element.attr('data-next-visitor')); 
        },

        _gotoAdjacentVisitor: function (idVisitor) {
            if (!idVisitor) {
                return;
            }

            if (this._inPopover()) {
                broadcast.propagateNewPopoverParameter('visitorProfile', idVisitor);
            } else if (this._inWidget()) {
                this.$element.closest('[widgetid]').dashboardWidget('reload', false, true, {visitorId: idVisitor});
            }
        },

        _getFirstVisitId: function () {
            return $('.visitor-profile-visits>li:first-child>h2', this.$element).attr('data-idvisit');
        },

        _inPopover: function () {
            return !! this.$element.closest('#Piwik_Popover').length;
        },

        _inWidget: function () {
            return !! this.$element.closest('.widget').length;
        }
    });

    exports.VisitorProfileControl = VisitorProfileControl;

    // add the popup handler that creates a visitor profile
    broadcast.addPopoverHandler('visitorProfile', VisitorProfileControl.showPopover);

})(jQuery, require);