import math from './math.js'

export default class ConvertViews {
    constructor() {
        this.sourceApp = null
        this.targetApp = null
        this.player1 = null
        this.player2 = null
        this.KanKan = null
    }

    /* bind(options = { sourceApp: null, targetApp: null }) {
        if (options.sourceApp) {
            this.sourceApp = options.sourceApp
            this.player1 = this.sourceApp.core.get('Player')
            //this.player1.model.addEventListener('gotPanos', this.init.bind(this))
        } else if (options.targetApp) {
            this.targetApp = options.targetApp
            this.player2 = this.targetApp.core.get('Player')
            //this.player2.model.addEventListener('gotPanos', this.init.bind(this))
        }
        if (this.sourceApp && this.targetApp) {
            // 两个实例都加载完了，可以进行特性处理
            this.init()
            this.applyDiff(options.sourceApp || options.targetApp)
        }
    } */

    init(viewer, dom2, sceneType, data) {
        //if (!this.player1.model.panos.list.length || !this.player2.model.panos.list.length) return
        this.needConvertAxis = sceneType == '4dkk'
        this.lastCamStatus = viewer.getCameraStatus()
        
        
        viewer.setNavigationMode(Glodon.Bimface.Viewer.NavigationMode3D.Walk)
        viewer.setFlySpeedRate(5)
        viewer.getViewer().setTransitionAnimationState(false) //setCameraStatus瞬间变化相机
        
        viewer.addEventListener('Rendered', (e)=>{
            let info = viewer.getCameraStatus()
             
            let poseChanged = !math.closeTo(this.lastCamStatus.position, info.position)
                || !math.closeTo(this.lastCamStatus.target, info.target)
                || !math.closeTo(this.lastCamStatus.fov, info.fov)
            
            if(poseChanged){
                
                this.send(info)
            }
            
            this.lastCamStatus = info
            
            
            
           /*   aspect: 0.7879440258342304
                coordinateSystem: "world"
                far: 11485.989363357028
                fov: 45
                name: "persp"
                near: 1.1852000000072447
                position: {x: -1130.0432094639486, y: -6058.569138159733, z: 2265.9284566100446}
                target: {x: 310.3968263091223, y: -66.0595010237127, z: 1477.7045866099475}
                up: {x: 0, y: 1.534753124827774e-13, z: 1}
                version: 1
                zoom: 0 */
        })
        
        
        viewer.addEventListener( Glodon.Bimface.Viewer.Viewer3DEvent.ViewAdded,
            ()=>{
                this.loaded = true
                if(this.firstData){
                    this.receive(this.firstData)
                }
            }
        )
        
        this.receive(data)
        
        
        
        
        {
            this.lockCamera(true)
            let dom1 = viewer.getDomElement() 
            dom1.addEventListener('mousedown',(e)=>{//传递到另一边的dom
                dom2.dispatchEvent(e) //试试
            })
            dom1.addEventListener('mousemove',(e)=>{//传递到另一边的dom
                dom2.dispatchEvent(e) //试试
            })
            dom1.addEventListener('mouseup',(e)=>{//传递到另一边的dom
                dom2.dispatchEvent(e) //试试
            })
            dom1.addEventListener('mousewheel',(e)=>{//传递到另一边的dom
                dom2.dispatchEvent(e) //试试
            })
            let stop = (e)=>{
                var event = document.createEvent('MouseEvents');
                event.initMouseEvent('mouseup', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
                dom2.dispatchEvent(event)  
            }
            dom1.addEventListener('mouseout',stop)
            dom1.addEventListener('mouseover',stop)
             
        }
        this.computeAveDiffLon()
        
    }



 


    receive(data){
        
        if(!this.loaded){
            return this.firstData = data
        }
        /* if(this.isMaster){
            return //正在操作当前，不接收 
        } */
        
        let position, target
        let currStatus = viewer.getCameraStatus()
        if(data.position){
            position = new THREE.Vector3().copy(data.position)
        }else{
            position.copy(currStatus.position)
        }
        if(this.needConvertAxis){
            position = math.convertVector.YupToZup(position)
        }
        
        
        if(!data.target){
            if(data.quaternion){ 
                if(this.needConvertAxis){
                    data.quaternion = math.convertQuaternion.YupToZup(data.quaternion)
                }
                let dir = new THREE.Vector3(0, 0, -1).applyQuaternion(data.quaternion)
                dir.applyQuaternion(this.diffQuaternion)/////!
                target.copy(position).add(dir) 
            }
        }else{
            if(this.needConvertAxis){
                target = math.convertVector.YupToZup(target)
            }else{
                target.copy(data.target)
            } 
        }

        let msg = {
            position,
            target,
            up: new THREE.Vector3(0,0,1)
        }//前三个缺一不可

        viewer.setCameraStatus(msg)    

        


        //fov, near,  far
        


    }


    send(info){ 
        let camera = viewer.getViewer().camera
        
        let data = { 
            position : info.position,
            quaternion : camera.quaternion,
            target : info.target,
        }
        
        
    }


    lockCamera(locked){
        this.locked = locked 
        this.updateCtrlEnable() 
    }

    setPanoMode(state){
        this.isPanoMode = state
        this.updateCtrlEnable()
    }

    updateCtrlEnable(){
        viewer.camera3D.enableRotate(this.locked ? false : true)
        viewer.enableShortcutKey((this.locked || this.isPanoMode) ? false : true) //键盘移动
    }



    computeAveDiffLon() {
        //获取两个场景的lon偏差值
        //需要点的个数>1, 且两个场景点一一对应，位置接近且顺序一致
        //pick两个点来计算
        let diffLonAve = 0,
            diffLons = []

        let panoPos1 = [//4dkk
            
        ]
        let panoPos2 = [{
            x: -0.8948667986001945,
            y: -0.7200655233964686,
            z: 1.742798893355817
        },{
            x: -0.8675960783595227,
            y: 2.3758592370806317,
            z: 1.7428102653224462
        }]
        
        let length = panoPos1.length
        
        if(this.needConvertAxis){
            panoPos1 = panoPos1.map(e=>math.convertVector.YupToZup(e))
        }

        //挑选连续的两个点为向量来计算，如有123个漫游点，则选取12 23 31作为向量

        let index = 0
        while (index < length) {
            let pos11 = new THREE.Vector3().copy(panoPos1[index])
            let pos12 = new THREE.Vector3().copy(panoPos1[(index + 1) % length])
            let pos21 = new THREE.Vector3().copy(panoPos2[index])
            let pos22 = new THREE.Vector3().copy(panoPos2[(index + 1) % length])
            let vec1 = new THREE.Vector3().subVectors(pos11, pos12).setY(0)
            let vec2 = new THREE.Vector3().subVectors(pos21, pos22).setY(0)
            let diffLon = this.KanKan.Utils.math.getAngle(vec1, vec2, 'z')
            diffLons.push(diffLon)
            diffLonAve += diffLon
            index++
        }

        console.log('diffLons', diffLons)
        diffLonAve /= length
        console.log('diffLonAve', diffLonAve)
        
        this.diffQuaternion = new THREE.Quaternion().setFromAxisAngle(new THREE.Vector3(0, 1, 0),  diffLonAve)
        this.diffQuaternionInvert = this.diffQuaternion.clone().invert()

    }

    /* applyDiff(app) {
        //sourcePlayer -> targetPlayer
        if (!this.player1 || !this.player2 || this.targetApp.config.num == this.sourceApp.config.num) return //场景码相同的话返回
        if (this.player1.mode != this.player2.mode) return

        let player1, player2, quaternion //player1为要改变的, player2是参照
        if (app == this.sourceApp) {
            player1 = this.player1
            player2 = this.player2
            quaternion = this.diffQuaternion
        } else {
            player1 = this.player2
            player2 = this.player1
            quaternion = this.diffQuaternionInvert
        }

        let control1 = player1.cameraControls.activeControl
        let control2 = player2.cameraControls.activeControl
        //if(!control1 || !control2)return

        player1.quaternion.copy(player2.quaternion).premultiply(quaternion)

        if (player1.mode == 'panorama') {
            //平移
            let dir = new this.KanKan.THREE.Vector3().subVectors(control2.target, player2.position)
            dir.applyQuaternion(quaternion)
            let target1 = new this.KanKan.THREE.Vector3().addVectors(player1.position, dir)
            control1.lookAt(target1)
            control1.target.copy(target1)
        } else if (control2) {
            //修改target，保证target在panos之间的相对位置一样
            //console.log('target', control2.target.clone())
            //console.log('position', control2.target.clone())
            let vec = new this.KanKan.THREE.Vector3().subVectors(control2.target, player2.model.panos.list[0].position)
            vec.applyQuaternion(quaternion)
            control1.target.addVectors(player1.model.panos.list[0].position, vec)
            player1.target.copy(control1.target)
            //修改position，保证方向一样
            let dir = new this.KanKan.THREE.Vector3().subVectors(control2.camera.position , control2.target)
            dir.applyQuaternion(quaternion)
            player1.position = new this.KanKan.THREE.Vector3().addVectors(control1.target, dir)

            control1.camera.position.copy(player1.position)
        }
        control1.camera.quaternion.copy(player1.quaternion)
    } */

    /* applyDiff(app, data) {
        //sourcePlayer -> targetPlayer

        let quaternion
        if (data.quaternion) {
            quaternion = new this.KanKan.THREE.Quaternion().copy(data.quaternion)
            data.quaternion = quaternion
        } else if (data.info && data.info.quaternion) {
            //飞出
            quaternion = new this.KanKan.THREE.Quaternion(data.info.quaternion._x, data.info.quaternion._y, data.info.quaternion._z, data.info.quaternion._w)
            data.info.quaternion = quaternion
            //let radius = data.info.position.distanceTo(data.info.target)
        }
        if (!quaternion) return

        if (app == this.sourceApp) {
            quaternion.premultiply(this.diffQuaternionInvert)
        } else {
            quaternion.premultiply(this.diffQuaternion)
        }

        if (data.info && data.info.quaternion) {
            //飞出
            let dir = new this.KanKan.THREE.Vector3().subVectors(data.info.position, data.info.target)
            dir.applyQuaternion(app == this.sourceApp ? this.diffQuaternionInvert : this.diffQuaternion)
            data.info.position = new this.KanKan.THREE.Vector3().addVectors(data.info.target, dir)
        }

         

        //先不管飞出后的位置平移

        //位置参照第一个漫游点。保持相机相对第一个漫游点的位移和
    } */
}