/**
 * system route module
 */

define([
    'jquery',
    'app/init',
    'app/util',
    'bootbox'
], function($, Init, Util, bootbox) {
    'use strict';

    var config = {
        // module info
        moduleClass: 'pf-module',                                               // class for each module

        routeCacheTTL: 10,                                                      // route cache timer (client) in seconds

        // system route module
        systemRouteModuleClass: 'pf-system-route-module',                       // class  for this module

        // headline toolbar
        systemModuleHeadlineIcon: 'pf-module-icon-button',                      // class for toolbar icons in the head
        systemModuleHeadlineIconSearch: 'pf-module-icon-button-search',         // class for "search" icon
        systemModuleHeadlineIconRefresh: 'pf-module-icon-button-refresh',       // class for "refresh" icon

        systemSecurityClassPrefix: 'pf-system-security-',                       // prefix class for system security level (color)

        // dialog
        routeDialogId: 'pf-route-dialog',                                       // id for route dialog
        systemDialogSelectClass: 'pf-system-dialog-select',                     // class for system select Element
        systemInfoRoutesTableClass: 'pf-system-route-table',                    // class for route tables
        mapSelectId: 'pf-route-dialog-map-select',                              // id for "map" select

        sigTableActionCellClass: 'pf-table-action-cell'                         // class for "action" cells

    };

    // cache for system routes
    var cache = {
        systemRoutes: {}                                                        // jump information between solar systems
    };

    /**
     * callback function, adds new row to a dataTable with jump information for a route
     * @param context
     * @param routesData
     */
    var callbackAddRouteRow = function(context, routesData){

        if(routesData.length > 0){
            for(var i = 0; i < routesData.length; i++){
                var routeData = routesData[i];

                // format routeData
                var rowData = formatRouteData(routeData);

                if(rowData.route){
                    var cacheKey = routeData.systemFrom.toLowerCase() + '_' + routeData.systemTo.toLowerCase();

                    // update route cache
                    cache.systemRoutes[cacheKey] = {
                        data: rowData,
                        updated: Util.getServerTime().getTime() / 1000
                    };

                    var rowElement = addRow(context, rowData);

                    rowElement.initTooltips({
                        container: 'body'
                    });
                }
            }

            // redraw dataTable
            context.dataTable.draw();
        }
    };

    /**
     * add a new dataTable row to the routes table
     * @param context
     * @param rowData
     * @returns {*}
     */
    var addRow = function(context, rowData){
        var dataTable = context.dataTable;
        var rowElement = null;
        var row = null;
        var animationStatus = 'changed';

        // search for an existing row (e.g. on mass "table refresh" [all routes])
        // get rowIndex where column 0 (equals to "systemTo") matches rowData.systemTo
        var indexes = dataTable.rows().eq(0).filter( function (rowIdx) {
            return (dataTable.cell(rowIdx, 0 ).data() === rowData.systemTo);
        });

        if(indexes.length > 0){
            // update row with FIRST index
            // -> systemFrom should be unique!
            row = dataTable.row( parseInt(indexes[0]) );
            // update row data
            row.data(rowData);
        }else{
            // no existing route found -> add new row
            row = dataTable.row.add( rowData );

            animationStatus = 'added';
        }

        if(row.length > 0){
            rowElement = row.nodes().to$();

            if(animationStatus !== null){
                rowElement.data('animationStatus', animationStatus);
            }
        }

        return rowElement;
    };

    /**
     * update complete routes table (refresh all)
     * @param moduleElement
     * @param dataTable
     */
    var updateRoutesTable = function(moduleElement, dataTable){
        var context = {
            moduleElement: moduleElement,
            dataTable: dataTable
        };

        var routeData = [];
        dataTable.rows().every( function() {

            var data = this.data();
            routeData.push({
                mapIds: data.mapIds,
                systemFrom: data.systemFrom,
                systemTo: data.systemTo
            });
        } );

        getRouteData({routeData: routeData}, context, callbackAddRouteRow);
    };

    /**
     * show route dialog. User can search for systems and jump-info for each system is added to a data table
     * @param dialogData
     */
    var showFindRouteDialog = function(dialogData){

        var mapSelectOptions = [];
        var currentMapData = Util.getCurrentMapData();
        if(currentMapData !== false){
            for(var i = 0; i < currentMapData.length; i++){
                mapSelectOptions.push({
                    id: currentMapData[i].config.id,
                    name: currentMapData[i].config.name,
                    selected: (dialogData.mapId === currentMapData[i].config.id)
                });
            }
        }
        var data = {
            id: config.routeDialogId,
            selectClass: config.systemDialogSelectClass,
            mapSelectId: config.mapSelectId,
            systemFrom: dialogData.systemFrom,
            mapSelectOptions: mapSelectOptions
        };

        requirejs(['text!templates/dialog/route.html', 'mustache'], function(template, Mustache) {

            var content = Mustache.render(template, data);

            // disable modal focus event -> otherwise select2 is not working! -> quick fix
            $.fn.modal.Constructor.prototype.enforceFocus = function() {};

            var findRouteDialog = bootbox.dialog({
                title: 'Route finder',
                message: content,
                show: false,
                buttons: {
                    close: {
                        label: 'cancel',
                        className: 'btn-default',
                        callback: function(){
                            $(findRouteDialog).modal('hide');
                        }
                    },
                    success: {
                        label: '<i class="fa fa-fw fa-search"></i>&nbsp;search route',
                        className: 'btn-primary',
                        callback: function () {
                            // add new route to route table

                            // get form Values
                            var form = $('#' + config.routeDialogId).find('form');

                            var routeDialogData = $(form).getFormValues();

                            // validate form
                            form.validator('validate');

                            // check weather the form is valid
                            var formValid = form.isValidForm();

                            if(formValid === false){
                                // don't close dialog
                                return false;
                            }

                            var context = {
                                moduleElement: dialogData.moduleElement,
                                dataTable: dialogData.dataTable
                            };

                            var requestData = {
                                routeData: [{
                                    mapIds: routeDialogData.mapIds,
                                    systemFrom: dialogData.systemFrom,
                                    systemTo: routeDialogData.systemTo,
                                    stargates: routeDialogData.hasOwnProperty('stargates') ? parseInt( routeDialogData.stargates ) : 0,
                                    jumpbridges: routeDialogData.hasOwnProperty('jumpbridges') ? parseInt( routeDialogData.jumpbridges ) : 0,
                                    wormholes: routeDialogData.hasOwnProperty('wormholes') ? parseInt( routeDialogData.wormholes ) : 0,
                                    wormholesReduced: routeDialogData.hasOwnProperty('wormholesReduced') ? parseInt( routeDialogData.wormholesReduced ) : 0,
                                    wormholesCritical: routeDialogData.hasOwnProperty('wormholesCritical') ? parseInt( routeDialogData.wormholesCritical ) : 0
                                }]
                            };

                            getRouteData(requestData, context, callbackAddRouteRow);
                        }
                    }
                }
            });

            findRouteDialog.on('show.bs.modal', function(e) {
                findRouteDialog.initTooltips();

                // init some dialog/form observer
                setDialogObserver( $(this) );

                // init map select ----------------------------------------------------------------
                var mapSelect = $(this).find('#' + config.mapSelectId);
                mapSelect.initMapSelect();
            });


            findRouteDialog.on('shown.bs.modal', function(e) {

                // init system select live  search ------------------------------------------------
                // -> add some delay until modal transition has finished
                var systemTargetSelect = $(this).find('.' + config.systemDialogSelectClass);
                systemTargetSelect.delay(240).initSystemSelect({key: 'name'});
            });

            // show dialog
            findRouteDialog.modal('show');
        });
    };

    /**
     * set event observer for route finder dialog
     * @param routeDialog
     */
    var setDialogObserver = function(routeDialog){
        var wormholeCheckbox = routeDialog.find('input[type="checkbox"][name="wormholes"]');
        var wormholeReducedCheckbox = routeDialog.find('input[type="checkbox"][name="wormholesReduced"]');
        var wormholeCriticalCheckbox = routeDialog.find('input[type="checkbox"][name="wormholesCritical"]');

        // store current "checked" state for each box ---------------------------------------------
        var storeCheckboxStatus = function(){
            wormholeReducedCheckbox.data('selectState', wormholeReducedCheckbox.prop('checked'));
            wormholeCriticalCheckbox.data('selectState', wormholeCriticalCheckbox.prop('checked'));
        };

        // on wormhole checkbox change ------------------------------------------------------------
        var onWormholeCheckboxChange = function(){

            if( $(this).is(':checked') ){
                wormholeReducedCheckbox.prop('disabled', false);
                wormholeCriticalCheckbox.prop('disabled', false);

                wormholeReducedCheckbox.prop('checked', wormholeReducedCheckbox.data('selectState'));
                wormholeCriticalCheckbox.prop('checked', wormholeCriticalCheckbox.data('selectState'));
            }else{
                storeCheckboxStatus();

                wormholeReducedCheckbox.prop('checked', false);
                wormholeReducedCheckbox.prop('disabled', true);
                wormholeCriticalCheckbox.prop('checked', false);
                wormholeCriticalCheckbox.prop('disabled', true);
            }
        }.bind(wormholeCheckbox);

        wormholeCheckbox.on('change', onWormholeCheckboxChange);

        // initial checkbox check
        storeCheckboxStatus();
        onWormholeCheckboxChange();
    };

    /**
     * requests route data from eveCentral API and execute callback
     * @param requestData
     * @param context
     * @param callback
     */
    var getRouteData = function(requestData, context, callback){

        context.moduleElement.showLoadingAnimation();

        $.ajax({
            url: Init.path.searchRoute,
            type: 'POST',
            dataType: 'json',
            data: requestData,
            context: context
        }).done(function(routesData){

            this.moduleElement.hideLoadingAnimation();

            // execute callback
            callback(this, routesData.routesData);
        });

    };

    /**
     * format route data from API request into dataTable row format
     * @param routeData
     * @returns {{}}
     */
    var formatRouteData = function(routeData){

        var reloadButton = '<i class="fa ' + ['fa-refresh'].join(' ') + '"></i>';
        var deleteButton = '<i class="fa ' + ['fa-close', 'txt-color', 'txt-color-redDarker'].join(' ') + '"></i>';

        // default row data (e.g. no route found)
        var tableRowData = {
            systemFrom:  routeData.systemFrom,
            systemTo:  routeData.systemTo,
            jumps: {
                value: 0,
                formatted: '---'
            },
            avgTrueSec: {
                value: '',
                formatted: ''
            },
            route: 'not found',
            stargates: routeData.stargates,
            jumpbridges: routeData.jumpbridges,
            wormholes: routeData.wormholes,
            wormholesReduced: routeData.wormholesReduced,
            wormholesCritical: routeData.wormholesCritical,
            reload: {
                button: reloadButton
            },
            clear: {
                button: deleteButton
            },
            maps: routeData.maps,
            mapIds: routeData.mapIds //map data (mapIds is "redundant")
        };

        if(
            routeData.routePossible === true &&
            routeData.route.length > 0
        ){
            // route data available

            // add route Data
            var jumpData = [];
            var avgSecTemp = 0;

            // loop all systems on this route
            for(var i = 0; i < routeData.route.length; i++){
                var routeNodeData = routeData.route[i];
                // format system name (camelCase)
                var systemName = routeNodeData.system.charAt(0).toUpperCase() + routeNodeData.system.slice(1).toLowerCase();

                var systemSec = Number(routeNodeData.security).toFixed(1).toString();
                var tempSystemSec = systemSec;

                if(tempSystemSec <= 0){
                    tempSystemSec = '0-0';
                }

                var systemSecClass = config.systemSecurityClassPrefix + tempSystemSec.replace('.', '-');

                var system = '<i class="fa fa-square ' + systemSecClass + '" ';
                system += 'data-toggle="tooltip" data-placement="bottom" data-container="body" ';
                system += 'title="' + systemName + ' [' + systemSec + '] "></i>';
                jumpData.push( system );

                avgSecTemp += Number(routeNodeData.security);
            }

            var avgSec = ( avgSecTemp /  routeData.route.length).toFixed(2);
            var avgSecForClass = Number(avgSec).toFixed(1);

            if(avgSecForClass <= 0){
                avgSecForClass = '0.0';
            }

            var avgSecClass = config.systemSecurityClassPrefix + avgSecForClass.toString().replace('.', '-');

            tableRowData.jumps = {
                value: routeData.routeJumps,
                formatted: routeData.routeJumps
            };

            tableRowData.avgTrueSec = {
                value: avgSec,
                formatted: '<span class="' + avgSecClass + '">' + avgSec + '</span>'
            };
            tableRowData.route = jumpData.join(' ');
        }

        return tableRowData;
    };

    /**
     * get the route finder moduleElement
     * @returns {*}
     */
    var getModule = function(){

        // create new module container
        var moduleElement = $('<div>', {
            class: [config.moduleClass, config.systemRouteModuleClass].join(' ')
        });

        // headline toolbar icons
        var headlineToolbar  = $('<h5>', {
            class: 'pull-right'
        }).append(
            $('<i>', {
                class: ['fa', 'fa-fw', 'fa-search', config.systemModuleHeadlineIcon, config.systemModuleHeadlineIconSearch].join(' '),
                title: 'find&nbsp;route'
            }).attr('data-html', 'true').attr('data-toggle', 'tooltip'),
            $('<i>', {
                class: ['fa', 'fa-fw', 'fa-refresh', config.systemModuleHeadlineIcon, config.systemModuleHeadlineIconRefresh].join(' '),
                title: 'refresh&nbsp;all'
            }).attr('data-html', 'true').attr('data-toggle', 'tooltip')
        );

        moduleElement.append(headlineToolbar);

        // headline
        var headline = $('<h5>', {
            class: 'pull-left',
            text: 'Routes'
        });

        moduleElement.append(headline);

        // crate new route table
        var table = $('<table>', {
            class: ['compact', 'stripe', 'order-column', 'row-border', config.systemInfoRoutesTableClass].join(' ')
        });

        moduleElement.append( $(table) );

        // init empty table
        var routesTable = table.DataTable( {
            paging: false,
            ordering: true,
            order: [ 1, 'asc' ],
            info: false,
            searching: false,
            hover: false,
            autoWidth: false,
            rowId: 'systemTo',
            language: {
                emptyTable:  'No routes added'
            },
            columnDefs: [
                {
                    targets: 0,
                    orderable: true,
                    title: 'system&nbsp;&nbsp;&nbsp;',
                    data: 'systemTo'
                },{
                    targets: 1,
                    orderable: true,
                    title: '<span title="jumps" data-toggle="tooltip"><i class="fa fa-arrows-h"></i>&nbsp;&nbsp;</span>',
                    width: '18px',
                    class: 'text-right',
                    data: 'jumps',
                    render: {
                        _: 'formatted',
                        sort: 'value'
                    }
                },{
                    targets: 2,
                    orderable: true,
                    title: '<span title="average security" data-toggle="tooltip">&#216;&nbsp;&nbsp;</span>',
                    width: '15px',
                    class: 'text-right',
                    data: 'avgTrueSec',
                    render: {
                        _: 'formatted',
                        sort: 'value'
                    }
                },{
                    targets: 3,
                    orderable: false,
                    title: 'route',
                    data: 'route'
                },{
                    targets: 4,
                    title: '',
                    orderable: false,
                    searchable: false,
                    width: '10px',
                    class: ['text-center', config.sigTableActionCellClass].join(' '),
                    data: 'reload',
                    render: {
                        _: 'button'
                    },
                    createdCell: function(cell, cellData, rowData, rowIndex, colIndex){
                        var tempTableApi = this.api();

                        $(cell).on('click', function(e) {
                            // get current row data (important!)
                            // -> "rowData" param is not current state, values are "on createCell()" state
                            rowData = tempTableApi.row( $(cell).parents('tr')).data();

                            var context = {
                                moduleElement: moduleElement,
                                dataTable: tempTableApi
                            };

                            var requestData = {
                                routeData: [{
                                    mapIds: rowData.mapIds,
                                    systemFrom: rowData.systemFrom,
                                    systemTo: rowData.systemTo,
                                    stargates: rowData.stargates ? 1 : 0,
                                    jumpbridges: rowData.jumpbridges ? 1 : 0,
                                    wormholes: rowData.wormholes ? 1 : 0,
                                    wormholesReduced: rowData.wormholesReduced ? 1 : 0,
                                    wormholesCritical: rowData.wormholesCritical ? 1 : 0
                                }]
                            };

                            getRouteData(requestData, context, callbackAddRouteRow);
                        });
                    }
                },{
                    targets: 5,
                    title: '',
                    orderable: false,
                    searchable: false,
                    width: '10px',
                    class: ['text-center', config.sigTableActionCellClass].join(' '),
                    data: 'clear',
                    render: {
                        _: 'button'
                    },
                    createdCell: function(cell, cellData, rowData, rowIndex, colIndex){
                        var tempTableElement = this;

                        var confirmationSettings = {
                            container: 'body',
                            placement: 'left',
                            btnCancelClass: 'btn btn-sm btn-default',
                            btnCancelLabel: 'cancel',
                            btnCancelIcon: 'fa fa-fw fa-ban',
                            title: 'delete route',
                            btnOkClass: 'btn btn-sm btn-danger',
                            btnOkLabel: 'delete',
                            btnOkIcon: 'fa fa-fw fa-close',
                            onConfirm : function(e, target){
                                var deleteRowElement = $(cell).parents('tr');
                                tempTableElement.api().rows(deleteRowElement).remove().draw();
                            }
                        };

                        // init confirmation dialog
                        $(cell).confirmation(confirmationSettings);
                    }
                }
            ],
            drawCallback: function(settings){

                var animationRows = this.api().rows().nodes().to$().filter(function() {
                    return (
                        $(this).data('animationStatus') ||
                        $(this).data('animationTimer')
                    );
                });

                for(var i = 0; i < animationRows.length; i++){
                    $(animationRows[i]).pulseTableRow($(animationRows[i]).data('animationStatus'));
                    $(animationRows[i]).removeData('animationStatus');
                }

            },
            data: [] // will be added dynamic
        });

        // init tooltips for this module
        var tooltipElements = moduleElement.find('[data-toggle="tooltip"]');
        tooltipElements.tooltip({
            container: 'body'
        });

        return moduleElement;
    };

    /**
     * init route module
     * -> request route path fore "default" trade hub systems
     * @param moduleElement
     * @param mapId
     * @param systemData
     */
    var initModule = function(moduleElement, mapId, systemData){

        var systemFrom = systemData.name;
        var systemsTo = ['Jita', 'Amarr', 'Rens', 'Dodixie'];

        var routesTableElement =  moduleElement.find('.' + config.systemInfoRoutesTableClass);

        var routesTable = routesTableElement.DataTable();

        // init refresh routes --------------------------------------------------------------------
        moduleElement.find('.' + config.systemModuleHeadlineIconRefresh).on('click', function(e){
            updateRoutesTable(moduleElement, routesTable);
        });

        // init search routes dialog --------------------------------------------------------------
        moduleElement.find('.' + config.systemModuleHeadlineIconSearch).on('click', function(e){
            var dialogData = {
                moduleElement: moduleElement,
                mapId: mapId,
                systemFrom: systemFrom,
                dataTable: routesTable
            };

            showFindRouteDialog(dialogData);
        });

        // fill routesTable with data -------------------------------------------------------------
        var requestRouteData = [];
        var currentTimestamp = Util.getServerTime().getTime();

        for(var i = 0; i < systemsTo.length; i++){
            var systemTo = systemsTo[i];

            if(systemFrom !== systemTo){
                var cacheKey = 'route_' + mapId + '_' + systemFrom.toUpperCase() + '_' + systemTo.toUpperCase();

                if(
                    cache.systemRoutes.hasOwnProperty(cacheKey) &&
                    Math.round(
                        ( currentTimestamp - (new Date( cache.systemRoutes[cacheKey].updated * 1000).getTime())) / 1000
                    ) <= config.routeCacheTTL
                ){
                    // route data is cached (client side)
                    var context = {
                        dataTable: routesTable
                    };

                    addRow(context, cache.systemRoutes[cacheKey].data);
                }else{
                    // get route data

                    requestRouteData.push({
                        mapIds: [mapId],
                        systemFrom: systemFrom,
                        systemTo: systemTo,
                        stargates: 1,
                        jumpbridges: 1,
                        wormholes: 1,
                        wormholesReduced: 1,
                        wormholesCritical: 1
                    });
                }
            }
        }

        // check if routes data is not cached and is requested
        if(requestRouteData.length > 0){
            var contextData = {
                moduleElement: moduleElement,
                dataTable: routesTable
            };

            var requestData = {
                routeData: requestRouteData
            };

            getRouteData(requestData, contextData, callbackAddRouteRow);
        }
    };


    /**
     * updates an dom element with the system route module
     * @param mapId
     * @param systemData
     */
    $.fn.drawSystemRouteModule = function(mapId, systemData){

        var parentElement = $(this);

        // show route module
        var showModule = function(moduleElement){
            if(moduleElement){
                moduleElement.css({ opacity: 0 });
                parentElement.append(moduleElement);

                moduleElement.velocity('transition.slideDownIn', {
                    duration: Init.animationSpeed.mapModule,
                    delay: Init.animationSpeed.mapModule,
                    complete: function(){
                        initModule(moduleElement, mapId, systemData);
                    }
                });
            }
        };

        // check if module already exists
        var moduleElement = parentElement.find('.' + config.systemRouteModuleClass);

        if(moduleElement.length > 0){
            moduleElement.velocity('transition.slideDownOut', {
                duration: Init.animationSpeed.mapModule,
                complete: function(tempElement){
                    $(tempElement).remove();

                    moduleElement = getModule();
                    showModule(moduleElement);
                }
            });
        }else{
            moduleElement = getModule();
            showModule(moduleElement);
        }

    };

});