import Charactor from "./Charactor.js";
import common from "./common.js";
import data from "./data.js";
import settings from "./settings.js";

export default class CharactorManager {

    constructor(app) {

        this.app = app

        this.frameRate = settings.video.frameRate;

        fetch("../textures/outputmp4/points.json", {
            headers: {
                'content-type': 'application/json'
            },
            method: 'GET',
        })
        .then(response => response.json())
        .then(response => {
            this.pointsData = response
        })
    }

    importCharactorModel(modelPath, modelName) {

        let self = this

        BABYLON.SceneLoader.ImportMesh("", modelPath, modelName, this.app.scene, function (newMeshes, particleSystems, skeletons, animationGroups) {
            
            self.charactor = new Charactor(newMeshes, particleSystems, skeletons, animationGroups)

            self.charactor.mesh.scaling.scaleInPlace(1.4);
            
            // 初始人物位置
            self.charactor.mesh.position = new BABYLON.Vector3(
                self.pointsData[0].position.x, 
                0,
                self.pointsData[0].position.y
            )
        });

    }

    clickHouse() {

        var scene = this.app.scene
        var pickinfo = scene.pick(scene.pointerX, scene.pointerY);

        if(pickinfo.pickedPoint) {

            this.charactorWalkTo(pickinfo.pickedPoint)

            // // 在行走之前，首先要把人物矫正到45度的倍数（有视频的8个方向）

            // if(this.charactor.actionType.split("-")[1] == "Walking") 
            // {
            //     // 如果是行走时改方向的话，相机保持之前已校正的度数，所以不用再改
            //     this.charactorWalkTo(pickinfo.pickedPoint)
            // } 
            // else {

            //     let cameraAlphaAmend = parseInt(this.app.camera.alpha / (Math.PI / 2)) * (Math.PI / 2)
            //     let sendData = {
            //         type: "CameraRotate",
            //         point: this.charactor.mesh.position,
            //         dirc: {
            //             from: this.app.camera.alpha % (Math.PI * 2),
            //             to: cameraAlphaAmend % (Math.PI * 2)
            //         }
            //     }
                
            //     // todo 发送数据
            //     // common.postData("", sendData).then(response => {

            //         let video = response[0].video

            //         this.app.updateHouseVideo(video)

            //         let rotateAni = new BABYLON.Animation("rotate", "alpha", this.frameRate, 
            //             BABYLON.Animation.ANIMATIONTYPE_FLOAT, BABYLON.Animation.ANIMATIONLOOPMODE_RELATIVE);

            //         const rotateFrameNum = this.frameRate * video.duration
            //         const rotateKeyFrames = [{
            //             frame: 0,
            //             value: this.app.camera.alpha
            //         },{
            //             frame: rotateFrameNum,
            //             value: cameraAlphaAmend
            //         }]; 

            //         rotateAni.setKeys(rotateKeyFrames);

            //         scene.beginDirectAnimation(this.app.camera, [rotateAni], 0, rotateFrameNum, false, 1, () => {
            //             // 旋转完后开始行走
            //             this.charactorWalkTo(pickinfo.pickedPoint)
            //         })

            //     // })
            // }
        }
    }

    onBeforeAnimation() {

        this.charactor.updateAniTrans()

    }

    charactorWalkTo(endPoint) {

        let currentPath = this.charactor.walkData.pathArr[this.charactor.walkData.currentPoint]
        let startPoint = (currentPath && currentPath.point) || this.charactor.mesh.position
        let sendData = {
            type: "Walk",
            point: {
                from: { x: startPoint.x, y: startPoint.z },
                to: { x: endPoint.x, y: endPoint.z }
            },
            dirc: this.app.camera.alpha % (Math.PI * 2)
        }

        // todo 发送数据
        // common.postData("", sendData).then(response => {

            let path = data.walkPath    // response
            path.forEach(data => data.point = this.pointsData[data.id].position)

            path = path.map(data => { 
                return { 
                    point: new BABYLON.Vector3(data.point.x, 0, data.point.y), 
                    video: data.video && common.createVideoElement(data.video) 
                } 
            })

            // 行走时锁定camera
            this.app.lockCamera(true)

            this.charactor.startWalk(path, this)

        // })

    }

}