import Common from './Common.js' 


//处理cursor优先级


var CursorDeal = {
    priorityEvent : [//在前面的优先级高
        
        { pen_delPoint: `url({Potree.resourcePath}/images/polygon_mark/pic_pen_sub.png),auto`},
        { pen_addPoint: `url({Potree.resourcePath}/images/polygon_mark/pic_pen_add.png),auto`},
        { pen: `url({Potree.resourcePath}/images/polygon_mark/pic_pen.png),auto`},
         
        {'grabbing':'grabbing'},//通用
        {'hoverGrab':'grab'},//通用
        {'pointer':'pointer'},//通用
        
        
        
        {'zoomInCloud':'zoom-in'},
        {'hoverPano':'pointer'}, 
        {"notAllowed-default":'not-allowed'},   
        {'connectPano':`url({Potree.resourcePath}/images/connect.png),auto`},
        {'disconnectPano':`url({Potree.resourcePath}/images/connect-dis.png),auto`},
        
        
        
        {'hoverLine':'pointer'},
        {'hoverTranHandle':'grab'},
         
         
         
        {"movePointcloud":'move'}, 
        {"polygon_isIntersectSelf":'not-allowed'},
        {"polygon_AtWrongPlace":'not-allowed'},
        {'delPoint':'url("https://4dkk.4dage.com/v4-test/www/sdk/images/polygon_mark/pic_pen_sub.png"), auto'},
        {"markerMove":'grab'},
        {'addPoint':'url("https://4dkk.4dage.com/v4-test/www/sdk/images/polygon_mark/pic_pen_add.png"), auto'},
        {'mapClipMove':'move'},
        {'mapClipRotate':`url({Potree.resourcePath}/images/rotate-cursor.png),auto`},
        {'rotatePointcloud':`url({Potree.resourcePath}/images/rotate-cursor.png),auto`},
        {'siteModelFloorDrag':'row-resize'},
        {'addSth':'cell'},//or  crosshair
    ], 
    list:[], //当前存在的cursor状态
    currentCursorIndex:null,
    
    init : function(viewer, viewers){
        
        this.priorityEvent.forEach(e=>{//刚开始Potree.resourcePath没值,现在换
            for(let i in e){
                e[i] = Common.replaceAll(e[i],'{Potree.resourcePath}',Potree.resourcePath)
            }
        })
        
         
        
        this.domElements = viewers.map(e=>e.renderArea)  
        
        viewer.addEventListener("CursorChange",(e)=>{
            if(e.action == 'add'){
                this.add(e.name)
            }else{
                this.remove(e.name)
            } 
        })
        
        
    },
    
    
    add : function(name){
        var priorityItem = this.priorityEvent.find(e=>e[name])
        if(!priorityItem){
            console.error('CursorDeal  未定义优先级 name:'+ name);
            return
        }
        
        
        if(!this.list.includes(name)){
            
            this.judge({addItem: priorityItem, name})
            
            this.list.push(name)
        }
         
    },
    
    
    remove : function(name){
        var index = this.list.indexOf(name);
        if(index > -1){
            this.list.splice(index, 1)
            this.judge()
        }
        
        
        
    },
    
    judge:function(o={}){
        //console.log(o,this.list)
        if(o.addItem){
            var addIndex = this.priorityEvent.indexOf(o.addItem) 
            if(addIndex < this.currentCursorIndex || this.currentCursorIndex == void 0){ 
                this.domElements.forEach(e=>e.style.cursor = o.addItem[o.name] )
                this.currentCursorIndex = addIndex
            }  
        }else{
            var levelMax = {index:Infinity, cursor:null }
            this.list.forEach(name=>{
                var priorityItem = this.priorityEvent.find(e=>e[name])
                var index = this.priorityEvent.indexOf(priorityItem)
                if(index < levelMax.index){
                    levelMax.index = index;
                    levelMax.cursor = priorityItem[name]
                }
            })
            this.currentCursorIndex = levelMax.index
            this.domElements.forEach(e=>e.style.cursor = levelMax.cursor || '')
        }
        
    }
    
     
}


export default CursorDeal;