var viewer;

// const devices = [
//     {
//         id: "Sensor 1",
//         position: {
//             x: -22.779729106182415,
//             y: 5.431043023608719,
//             z: 4.553068469137088,
//         },
//         type: "combo",
//         sensorTypes: ["temperature", "co2"],
//         dbId: 1,
//     },
//     {
//         id: "Sensor 2",
//         position: {
//             x: 0.20752051811882666,
//             y: 5.431043023608719,
//             z: 4.553068469137088,
//         },
//         type: "combo",
//         sensorTypes: ["temperature", "co2"],
//         dbId: 2,
//     },
// ];

// var sensorStyleDefinitions = {
//     co2: {
//         url: "https://d2zqnmauvnpnnm.cloudfront.net/assets-1/images/co2.svg",
//         color: 0xffffff,
//     },
//     temperature: {
//         url: "https://d2zqnmauvnpnnm.cloudfront.net/assets-1/images/thermometer.svg",
//         color: 0xffffff,
//     },
//     default: {
//         url: "https://d2zqnmauvnpnnm.cloudfront.net/assets-1/images/circle.svg",
//         color: 0xffffff,
//     },
// };

// Initialize sensor values
//let sensorVals = [];
let fragProxy;
var targetFloorZ;
var elevatorSpeed;
// for (let i = 0; i < devices.length; i++) {
//     sensorVals[i] = Math.random();
// }

function launchViewer(urn, callback) {
    var options = {
        env: 'AutodeskProduction',
        getAccessToken: getForgeToken
    };

    Autodesk.Viewing.Initializer(options, () => {
        viewer = new Autodesk.Viewing.GuiViewer3D(document.getElementById('forgeViewer'));
        //viewer = new Autodesk.Viewing.Viewer3D(document.getElementById('forgeViewer'));
        viewer.start();
        var documentId = 'urn:' + urn;

        Autodesk.Viewing.Document.load(documentId, onDocumentLoadSuccess, onDocumentLoadFailure);

        $("#forgeViewer").on("autodesk:loaded", function () {
            callback ? callback(viewer) : "";
        })


        //test 
        // for (let i = 0; i < urn.length; i++) {
        //     Autodesk.Viewing.Document.load(urn[i]["urn"], async (doc) => {
        //         let viewables = doc.getRoot().getDefaultGeometry();
        //         let model = await viewer.loadDocumentNode(doc, viewables, {
        //             preserveView: false,
        //             keepCurrentModels: true,
        //             placementTransform: (new THREE.Matrix4()).setPosition(urn[i]["xform"]),
        //             keepCurrentModels: true,
        //             globalOffset: {
        //                 x: 0,
        //                 y: 0,
        //                 z: 0
        //             }
        //         });

        //         await viewer.waitForLoadDone(); //!<<< Wait for loading materials, properties and geometries for this model (URN)
        //     });
        // }

        //loadHeatmaps(viewer.getAllModels()[0]); //!<<< equals to viewer.model



    });
}

function getAllLeafComponents(viewer, callback) {
    var cbCount = 0;
    var tree;
    var jsData = []

    function getLeafComponentsRec(current, parent) {
        cbCount++;
        if (tree.getChildCount(current) != 0) {
            tree.enumNodeChildren(current, function (children) {
                getLeafComponentsRec(children, current);
            }, false);
        }
        var nodeName = viewer.model.getInstanceTree().getNodeName(current)
        jsData.push({ id: current, parent: parent, text: nodeName })

        if (--cbCount == 0) callback(jsData);
    }
    viewer.getObjectTree(function (objectTree) {
        tree = objectTree;
        var rootId = tree.getRootId()
        var nodeName = viewer.model.getInstanceTree().getNodeName(rootId)
        jsData.push({ id: rootId, parent: '#', text: nodeName })
        var allLeafComponents = getLeafComponentsRec(rootId, '#');

    });
}

class elevator3D {
    constructor(option = {}) {
        this.ele = option.element;
        this.viewer = option.viewer;
        this.nodeId = option.nodeId;
        this.speed = option.speed ?? 0.3;
        this.fragProxys = [];
        this.fragProxy = null;
        this.initCallback = option.inited ?? null;
        this.movStatus = 0;
        this.targetFloorZ = 0;
        this.floorHeight = option.floorHeight ?? [{}];
        this.init();
    }

    setTreeFrag = function (callback) {
        let tree = this.viewer.model.getData().instanceTree;
        let nodeId = this.nodeId;
        //tree.enumNodeChildren(nodeId, (node) => {
        //    nodeId = node;
        //    tree.enumNodeFragments(nodeId, (frag) => {
        //        this.fragProxy = this.viewer.impl.getFragmentProxy(this.viewer.model, frag);
        //        this.fragProxy.getAnimTransform();
        //        let fragPosition = new THREE.Vector3(0, 0, 0);// 一樓0 二樓15 三樓 26

        //        this.fragProxy.position = fragPosition

        //        this.fragProxy.updateAnimTransform()
        //    });
        //})
        
        if (nodeId) {
            let childCnt = tree.getChildCount(nodeId);
            let curIdx = 1;
            this.fragProxys.filter(x => x.nodeId == nodeId).forEach((x) => {
                let idx = this.fragProxys.indexOf(x);
                this.fragProxys.splice(idx,1);
            })
            tree.enumNodeFragments(nodeId, (frag) => {
                let fragProxy = this.viewer.impl.getFragmentProxy(this.viewer.model, frag);

                this.fragProxys.push({ nodeId: nodeId, fragId: frag, frag: fragProxy });

                fragProxy.getAnimTransform();
                let fragPosition = new THREE.Vector3(0, 0, 0);// 一樓0 二樓15 三樓 26

                fragProxy.position = fragPosition;

                fragProxy.updateAnimTransform();
                if (childCnt == curIdx) {
                    this.initCallback ? this.initCallback() : "";
                    callback ? callback() : "";
                }
                curIdx++;
            }, true);
        }
        this.viewer.impl.sceneUpdated(true);
        if (typeof $(this.ele)[0]._elevator3D == "undefined") {
            $(this.ele)[0]._elevator3D = [];
        }
        $(this.ele)[0]._elevator3D.push({ nodeId: nodeId, obj: this });
    }

    init = function (callback = null) {
        this.setTreeFrag(callback);
    }

    setElevatorFloor = function (floor) {
        this.targetFloorZ = this.floorHeight.filter(x => x.floor == floor)[0]?.height ?? 0;
    }

    setElevatorSpeed = function (speed) { //0.01 ~ 1
        this.speed = speed;
    }

    movElevator = function () {

        let tree = this.viewer.model.getData().instanceTree;
        let nodeId = this.nodeId;
        let fragProxyZ = 0;
        let movStatus = this.movStatus; // 0=no 1=up 2=down
        let fragProxy = this.fragProxys.filter(x => x.nodeId == nodeId)[0]?.frag;
        if (!fragProxy) {
            return;
        }

        if (fragProxy.position.z > this.targetFloorZ) {
            movStatus = 2
        }
        else if (fragProxy.position.z < this.targetFloorZ) {
            movStatus = 1
        }

        if (movStatus == 0) {
            return;
        }

        tree.enumNodeFragments(nodeId, (frag) => {
            let fragProxy = this.viewer.impl.getFragmentProxy(this.viewer.model, frag);
            fragProxy.getAnimTransform();
            //let fragPosition = new THREE.Vector3(0, 0, 15);// 一樓0 二樓15 三樓 26
            if (movStatus == 2) {
                fragProxy.position.z -= this.speed;
            }
            else if (movStatus == 1) {
                fragProxy.position.z += this.speed;
            }

            fragProxyZ = fragProxy.position.z;
            fragProxy.updateAnimTransform()

        }, true);
        this.viewer.impl.sceneUpdated(true);

        let movElevator = $(this.ele)[0]._elevator3D.filter(x => x.nodeId == this.nodeId)[0]?.obj.movElevator.bind(this);
        if (movStatus == 2) {
            if (fragProxyZ >= this.targetFloorZ) {
                requestAnimationFrame(() => {
                    movElevator();
                });
            }
        }
        else if (movStatus == 1) {
            if (fragProxyZ <= this.targetFloorZ) {
                requestAnimationFrame(() => {
                    movElevator();
                });
            }
        }


        //let fragPosition = new THREE.Vector3(position);// 一樓0 二樓15 三樓 26

        //fragProxy.position = fragPosition;

        //fragProxy.updateAnimTransform();

        //viewer.impl.sceneUpdated(true);
    }
}

function onDocumentLoadSuccess(doc, eleOption) {
    var viewables = doc.getRoot().getDefaultGeometry();
    viewer.loadDocumentNode(doc, viewables).then(i => {
        // documented loaded, any action?

    });
    // viewer.addEventListener(Autodesk.Viewing.AGGREGATE_SELECTION_CHANGED_EVENT, (args) => {
    //     var currSelection = viewer.getSelection();
    //     var domElem = document.getElementById('id_printer');
    //     domElem.innerText = currSelection[0];
    // });

    viewer.addEventListener(Autodesk.Viewing.GEOMETRY_LOADED_EVENT, function () {
        //var instanceTree = viewer.model.getData().instanceTree;
        //var allDbIdsStr = Object.keys(instanceTree.nodeAccess.dbIdToIndex);
        //var domElem = document.getElementById('all_id');
        //domElem.innerText = allDbIdsStr;
        //let nodes = eleOption.nodes ?? [];
        //let element = eleOption.element ?? "";
        //$(element)[0]._elevator3D = [];
        //$.each(nodes, function (idx, node) {
        //    let options = {
        //        element: $(element),
        //        viewer: viewer,
        //        nodeId: node,
        //        floorHeight: eleOption.floorHeight ?? [],
        //        inited: function () {
        //            if (idx == nodes.length - 1) {
        //                $(element).trigger("autodesk:loaded");
        //            }
        //        }
        //    }
        //    let elevator3DObj = new elevator3D(options);

        //})
        $("#forgeViewer").trigger("autodesk:loaded");
        //let tree = viewer.model.getData().instanceTree;
        //let nodeId = 10952;
        //console.log("tree", tree)
        //tree.enumNodeFragments(nodeId, function (frag) {
        //    fragProxy = viewer.impl.getFragmentProxy(viewer.model, frag);
        //    fragProxy.getAnimTransform();
        //    let fragPosition = new THREE.Vector3(0, 0, 0);// 一樓0 二樓15 三樓 26

        //    fragProxy.position = fragPosition

        //    fragProxy.updateAnimTransform()
        //});
        //viewer.impl.sceneUpdated(true);
        //$("#forgeViewer").trigger("autodesk:loaded");

    });


}

function setElevatorFloor(floor) {
    if (floor == 0)
        targetFloorZ = 0;
    else if (floor == 1)
        targetFloorZ = 15;
    else if (floor == 2)
        targetFloorZ = 26;
}

function setElevatorSpeed(speed) { //0.01 ~ 1
    elevatorSpeed = speed;
}

function movElevator() {


    let tree = viewer.model.getData().instanceTree;
    let nodeId = 10952;
    let fragProxyZ = 0;
    var movStatus = 0; // 0=no 1=up 2=down


    if (fragProxy.position.z > targetFloorZ) {
        movStatus = 2
    }
    else if (fragProxy.position.z < targetFloorZ) {
        movStatus = 1
    }

    if (movStatus == 0) {
        return;
    }

    tree.enumNodeFragments(nodeId, function (frag) {
        fragProxy = viewer.impl.getFragmentProxy(viewer.model, frag);
        fragProxy.getAnimTransform();
        //let fragPosition = new THREE.Vector3(0, 0, 15);// 一樓0 二樓15 三樓 26
        if (movStatus == 2) {
            fragProxy.position.z -= elevatorSpeed;
        }
        else if (movStatus == 1) {
            fragProxy.position.z += elevatorSpeed;
        }

        fragProxyZ = fragProxy.position.z;
        fragProxy.updateAnimTransform()

    });
    viewer.impl.sceneUpdated(true);

    if (movStatus == 2) {
        if (fragProxyZ >= targetFloorZ) {
            requestAnimationFrame(movElevator);
        }
    }
    else if (movStatus == 1) {
        if (fragProxyZ <= targetFloorZ) {
            requestAnimationFrame(movElevator);
        }
    }


    //let fragPosition = new THREE.Vector3(position);// 一樓0 二樓15 三樓 26

    //fragProxy.position = fragPosition;

    //fragProxy.updateAnimTransform();

    //viewer.impl.sceneUpdated(true);
}

function getAllDbIds(viewer) {
    var instanceTree = viewer.model.getData().instanceTree;

    var allDbIdsStr = Object.keys(instanceTree.nodeAccess.dbIdToIndex);

    return allDbIdsStr.map(function (id) { return parseInt(id) });
}

/**
 * Autodesk.Viewing.Document.load() failuire callback.
 */
function onDocumentLoadFailure(viewerErrorCode) {
    console.error("onDocumentLoadFailure() - errorCode:" + viewerErrorCode);
}

function getForgeToken(callback) {
    fetch(baseApiUrl + '/api/forge/oauth/token').then(res => {
        res.json().then(data => {
            callback(data.dictionary.access_token, data.dictionary.expires_in);
        });
    });
    //callback("eyJhbGciOiJSUzI1NiIsImtpZCI6IlU3c0dGRldUTzlBekNhSzBqZURRM2dQZXBURVdWN2VhIn0.eyJzY29wZSI6WyJkYXRhOndyaXRlIiwiZGF0YTpyZWFkIiwiYnVja2V0OnJlYWQiLCJidWNrZXQ6dXBkYXRlIiwiYnVja2V0OmNyZWF0ZSJdLCJjbGllbnRfaWQiOiJUQTNocXNGZnpRYk5PVVhLcGxkS1VLU2V3NFNKMjF3NSIsImF1ZCI6Imh0dHBzOi8vYXV0b2Rlc2suY29tL2F1ZC9hand0ZXhwNjAiLCJqdGkiOiJiemxzWE5qWElvZ2R1UjUzTUJkdlhrTTNTT01qeVB1bHJrMmdTVWJudGNTeDg1b01kRG1xejg3Z05jenJkRzhpIiwiZXhwIjoxNjY4MTgzMDM2fQ.VU3qLwTJ9nlXnomKCdk4y5UcgszGEO_zlvE7w5mWWajeBMwKLo-zw7LJEqUEajRksvssppR9SbVsjLSx-vDVc3DRhCo3jYTWKPT1T3wQrlkOSqLeIrAdnKdBDNBWKgrGJt_xcmXc3dZ3XNKf9L_F6Ex808rUlo6cem1mcPpKl1jCBDqKu1mAX7aDtZ65TTQZbGGhbG4HdnET-d1i5w4LunGN11UAHhDUW3n0SWWIBL27PiiUQONZttajhD5st6IngYLcjr93BYVyJmDF7-wm4WZlHSw2OnXIfbJcFXEd83uVv_Rej4UXjzZ0e6kHwzc2nvGvKSIFu3Nt7CabdR8CkA", 3599);
}

async function loadHeatmaps(model) {

    const dataVizExtn = await viewer.loadExtension("Autodesk.DataVisualization");

    // Given a model loaded from Forge
    const structureInfo = new Autodesk.DataVisualization.Core.ModelStructureInfo(model);

    const devices = [
        {
            id: "Oficina 6",
            name: "Oficina-",
            position: { x: 22.475382737884104, y: 7.4884431474006163, z: 3.0 },
            sensorTypes: ["temperature", "humidity"]
        }
    ];

    var offset = Autodesk.viewer.model.getGlobalOffset();
    removeOffset(devices[0], offset)

    // Generates `SurfaceShadingData` after assigning each device to a room.

    const shadingData = await Autodesk.structureInfo.generateSurfaceShadingData(devices);

    // Use the resulting shading data to generate heatmap from.
    await dataVizExtn.setupSurfaceShading(model, shadingData);

    // Register color stops for the heatmap. Along with the normalized sensor value
    // in the range of [0.0, 1.0], `renderSurfaceShading` will interpolate the final
    // heatmap color based on these specified colors.
    const sensorColors = [0x0000ff, 0x00ff00, 0xffff00, 0xff0000];

    // Set heatmap colors for temperature
    const sensorType = "temperature";
    dataVizExtn.registerSurfaceShadingColors(sensorType, sensorColors);

    // Function that provides sensor value in the range of [0.0, 1.0]

    function getSensorValue(surfaceShadingPoint, sensorType) {
        // The `SurfaceShadingPoint.id` property matches one of the identifiers passed
        // to `generateSurfaceShadingData` function. In our case above, this will either
        // be "cafeteria-entrace-01" or "cafeteria-exit-01".
        const deviceId = surfaceShadingPoint.id;

        // Read the sensor data, along with its possible value range
        let sensorValue = readSensorValue(deviceId, sensorType);
        const maxSensorValue = getMaxSensorValue(sensorType);
        const minSensorValue = getMinSensorValue(sensorType);

        // Normalize sensor value to [0, 1.0]
        sensorValue = (sensorValue - minSensorValue) / (maxSensorValue - minSensorValue);
        return clamp(sensorValue, 0.0, 1.0);
    }

    // This value can also be a room instead of a floor
    const floorName = "01 - Entry Level";
    dataVizExtn.renderSurfaceShading(floorName, sensorType, getSensorValue);
}