/*
 * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

Ext.define('Traccar.view.map.MapController', {
    extend: 'Ext.app.ViewController',
    alias: 'controller.map',
    
    config: {
        listen: {
            controller: {
                '*': {
                    reportShow: 'reportShow',
                    reportClear: 'reportClear',
                    selectDevice: 'selectDevice',
                    selectReport: 'selectReport'
                }
            }
        }
    },
    
    init: function() {
        this.liveData = {};
        this.update(true);
    },
    
    update: function(first) {
        Ext.Ajax.request({
            scope: this,
            url: '/api/async',
            params: {
                first: first
            },
            success: function(response) {
                var data = Ext.decode(response.responseText).data;
                
                var i;
                for (i = 0; i < data.length; i++) {

                    // TODO check if exists and update
                    var store = Ext.getStore('LiveData');

                    var found = store.query('deviceId', data[i].deviceId);
                    if (found.getCount() > 0) {
                        var model = found.first();
                        model.set(data[i]);

                        //store.commitChanges(); need for update?

                    } else {
                        store.add(Ext.create('Traccar.model.Position', data[i]));
                    }

                    var geometry = new ol.geom.Point(ol.proj.fromLonLat([
                        data[i].longitude,
                        data[i].latitude
                    ]));
                    
                    if (data[i].deviceId in this.liveData) {
                        this.liveData[data[i].deviceId].setGeometry(geometry);
                    } else {
                        var style = this.getMarkerStyle(styles.map_live_radius, styles.map_live_color);
                        var marker = new ol.Feature({
                            geometry: geometry,
                            originalStyle: style
                        });
                        marker.setStyle(style);
                        this.getView().vectorSource.addFeature(marker);
                        this.liveData[data[i].deviceId] = marker;
                    }
                }
                
                this.update(false);
            },
            failure: function() {
                // TODO: error
            }
        });
    },

    getLineStyle: function() {
        return new ol.style.Style({
            stroke: new ol.style.Stroke({
                color: styles.map_stroke_color,
                width: styles.map_route_width
            })
        });
    },

    getMarkerStyle: function(radius, color) {
        /*return new ol.style.Style({
            text: new ol.style.Text({
                text: '\uf041',
                font: 'normal 32px FontAwesome',
                textBaseline: 'Bottom',
                fill: new ol.style.Fill({
                    color: color
                }),
                stroke: new ol.style.Stroke({
                    color: 'black',
                    width: 2
                })
            })
        });*/
        return new ol.style.Style({
            image: new ol.style.Circle({
                radius: radius,
                fill: new ol.style.Fill({
                    color: color
                }),
                stroke: new ol.style.Stroke({
                    color: styles.map_stroke_color,
                    width: styles.map_marker_stroke
                })
            })
        });
    },
    
    reportShow: function() {
        this.reportClear();
        
        var vectorSource = this.getView().vectorSource;

        var data = Ext.getStore('Positions').getData().clone();
        data.sort('fixTime');
        
        var index;
        var positions = [];
        this.reportRoutePoints = {};

        for (index = 0; index < data.getCount(); index++) {
            var point = ol.proj.fromLonLat([
                data.getAt(index).data.longitude,
                data.getAt(index).data.latitude
            ]);
            positions.push(point);

            var style = this.getMarkerStyle(styles.map_report_radius, styles.map_report_color);
            var feature = new ol.Feature({
                geometry: new ol.geom.Point(positions[index]),
                originalStyle: style
            });
            feature.setStyle(style);
            this.reportRoutePoints[data.getAt(index).get('id')] = feature;
        }

        this.reportRoute = new ol.Feature({
            geometry: new ol.geom.LineString(positions)
        });
        this.reportRoute.setStyle(this.getLineStyle());
        vectorSource.addFeature(this.reportRoute);

        for (var key in this.reportRoutePoints) {
            if (this.reportRoutePoints.hasOwnProperty(key)) {
                vectorSource.addFeature(this.reportRoutePoints[key]);
            }
        }
    },

    reportClear: function() {
        var index;
        var vectorSource = this.getView().vectorSource;
        
        vectorSource.removeFeature(this.reportRoute);

        for (var key in this.reportRoutePoints) {
            if (this.reportRoutePoints.hasOwnProperty(key)) {
                vectorSource.removeFeature(this.reportRoutePoints[key]);
            }
        }

        this.reportRoutePoints = {};
    },

    selectPosition: function(feature) {
        if (this.currentFeature !== undefined) {
            this.currentFeature.setStyle(this.currentFeature.get('originalStyle'));
        }

        feature.setStyle(this.getMarkerStyle(styles.map_select_radius, styles.map_select_color));

        var pan = ol.animation.pan({
            duration: styles.map_delay,
            source: this.getView().mapView.getCenter()
        });
        this.getView().map.beforeRender(pan);
        this.getView().mapView.setCenter(feature.getGeometry().getCoordinates());

        this.currentFeature = feature;
    },

    selectDevice: function(device) {
        if (this.liveData[device.get('id')] !== undefined) {
            this.selectPosition(this.liveData[device.get('id')]);
        }
    },

    selectReport: function(position) {
        if (this.reportRoutePoints[position.get('id')] !== undefined) {
            this.selectPosition(this.reportRoutePoints[position.get('id')]);
        }
    }

});