import { Group, Vector3, Matrix4, Mesh, Quaternion, PlaneGeometry, MeshStandardMaterial, DoubleSide } from 'three';
import { InteractiveObject } from '../InteractiveObject';

class MazeObject {
    constructor(engine, def, params = {}){
        let room = new Group();
        let root = room;
        this.object = room;
        let context = {};

        const bbox = {l:0, r:0, f:0}

        const scale = 5;

        context.wallSize = params.wallSize || 1.2*scale; //half
        context.tubeSize = params.tubeSize || 1.2*scale;
        context.wallDepth = params.wallDepth || 0*scale;
        context.fontPath = params.fontPath || '/static/fonts/Montserrat-Regular.ttf';
        context.scale = scale;

        this.context = context;
        let _tf = {
            rotation: {
                r: 3 * Math.PI / 2, f: 0, l: Math.PI / 2, b: 0
            },
            pNext: {
                r: [-context.wallSize/2, context.wallSize/2],
                f: [0, context.wallSize],
                l: [context.wallSize/2, context.wallSize/2]
            }
        };

        let o = {};

        function addPhysics(matrix, position, size, placement = 'side'){
            let quat = new Quaternion().setFromRotationMatrix(matrix);
            let v = new Vector3(...position).applyMatrix4(matrix);
            let po = engine.phy.add(
                {position: v}, 'fixed', false, undefined, 'cuboid',{ width: 0.01, height:1, depth:size/2 }
            )
            if (placement == 'front') {
                quat.multiply(new Quaternion(0, 0.7071068, 0, 0.7071068)) //rotate by 90deg
            }
            po.rigidBody.setRotation(quat, true)
        }

        function addRoom(elements, def, offsetZ){
            // e = [
            //     o.floor.clone(), 
            //     o.door.clone(), 
            //     o[def.r ? 'door' : 'wall'].clone(),
            //     o[def.f ? 'door' : 'wall'].clone(), 
            //     o[def.l ? 'door' : 'wall'].clone()
            // ];

            let e = elements.map(e=>o[e].clone())

            e[0].position.set(0, 0, offsetZ + context.wallSize/2);

            e[1].rotateY(_tf.rotation.b);

            e[2].rotateY(_tf.rotation.r);
            e[3].rotateY(_tf.rotation.f);
            e[4].rotateY(_tf.rotation.l);

            e[1].position.set(0, 0, offsetZ + 0);
            e[2].position.set(-context.wallSize/2, 0, offsetZ + context.wallSize/2);
            e[3].position.set(0, 0, offsetZ + context.wallSize);
            e[4].position.set(context.wallSize/2, 0, offsetZ + context.wallSize/2);

            if (elements[1] == 'wall'){
                addPhysics(def.matrix, [0, 0, offsetZ], context.wallSize, 'front')
            }

            if (elements[2] == 'wall'){
                addPhysics(def.matrix, [-context.wallSize/2, 0, offsetZ + context.wallSize/2], context.wallSize)
            }

            if (elements[3] == 'wall'){
                addPhysics(def.matrix, [0, 0, offsetZ + context.wallSize], context.wallSize, 'front')
            }

            if (elements[4] == 'wall'){
                addPhysics(def.matrix, [context.wallSize/2, 0, offsetZ + context.wallSize/2], context.wallSize)
            }

            e.forEach(g => {
                g.applyMatrix4(def.matrix);
                root.add(g);
                bbox.l = Math.min(g.position.x, bbox.l)
                bbox.r = Math.max(g.position.x, bbox.r)
                bbox.f = Math.max(g.position.z, bbox.f)
            });
        }

        this.mazeObject = function(def, room, step = 0) {
            if (!def.matrix){
                def.matrix = new Matrix4();
            }
            let offsetZ = 0, e;
            def.len = def.len || 0;
            if (step == 0) {
                // e = o.door.clone();
                // e.rotateY(_tf.rotation.f);
                // mazeMeshes.push(e);
                addRoom(['floor', 'wall', 'wall', 'door', 'wall'], def, -context.wallSize)
            }
            for (let i = 0; i < def.len; i++) {
                let t = o.tunnel.clone();
                t.position.set(0, 0, i * context.tubeSize);
                def.matrix && t.applyMatrix4(def.matrix);
                root.add(t);
            }
            offsetZ = def.len * context.tubeSize;
            //if (!def.len) offsetZ = -.275;
            //room.getWorldQuaternion(quat);
            // const geometry = new BoxGeometry(2, 2, offsetZ);
            // const cube = new Mesh(geometry, o.tunnel.material)
            // cube.position.set(context.tubeSize / 2, 0.6, offsetZ/2)
            // root.add(cube);

            // console.log(offsetZ, room.localToWorld(new Vector3(context.tubeSize / 2, 0.6, offsetZ/2)))

            addPhysics(def.matrix, [context.tubeSize / 2, 0.6, offsetZ/2], offsetZ)
            addPhysics(def.matrix, [-context.tubeSize / 2, 0.6, offsetZ/2], offsetZ)

            addRoom(['floor', 'door', def.r ? 'door' : 'wall', def.f ? 'door' : 'wall', def.l ? 'door' : 'wall'], def, offsetZ)

            console.log('loadingggg', def.objects)
            def.objects?.forEach(async obj => {
                obj.room = room;
                // let go = new GameObject(obj, context);
                let go = new InteractiveObject(obj, context)
                await go.ready;
                go.object.scale.multiplyScalar(context.wallSize)
                go.object.position.multiplyScalar(context.wallSize)
                go.object.applyMatrix4(def.matrix);
                root.add(go.object);
                // go.ready.then(mesh => {
                //     room.add(mesh);
                // });
            });
            
            def.room = room;
            ['r', 'f', 'l'].forEach((d, i) => {
                if (!def[d]) return;
                let mtx = new Matrix4();
                mtx.makeRotationY(_tf.rotation[d]);
                mtx.setPosition(_tf.pNext[d][0], 0, _tf.pNext[d][1] + offsetZ);
                let rr = new Group();
                root.add(rr);
                def[d].matrix = mtx.premultiply(def.matrix);
                rr.applyMatrix4(def[d].matrix);
                rr.updateMatrixWorld();
                this.mazeObject(def[d], rr, step + 1);
            });
        };
        
        this.load = async function(){
            let mazeAsset = await engine.load('/static/meshes/quiz.gltf');
            ['tunnel', 'wall', 'door', 'floor'].forEach(e => {
                o[e] = mazeAsset.scene.getObjectByName(e);
                //o[e].frustumCulled = false;
                o[e].scale.set(scale, scale, scale)
                // o[e].geometry.computeBoundingBox();
                // console.log(e, o[e].geometry.boundingBox)
            });
            this.mazeObject(def, room);
            // mazeMeshes.forEach(mesh=>{
            //     //let mesh = new Mesh(mg, o.tunnel.material)
            //     root.add(mesh);
            //     //engine.phy.add(mesh, 'fixed')
            // })

            console.log(bbox, 'bbox')
            const floorGeometry = new PlaneGeometry(bbox.r - bbox.l + 10*scale, bbox.f + 10*scale);
            const floor = new Mesh(floorGeometry,new MeshStandardMaterial({
                roughness: 0, metalness:1, color: 0x00ffff, side: DoubleSide
            }))
            floor.rotation.set(Math.PI/2, 0, 0)
            floor.position.set((bbox.l + bbox.r)/2, 0.3, bbox.f/2);
            root.add(floor);
            //scene.add(new Mesh(BufferGeometryUtils.mergeGeometries(mazeGeometries, false), o.tunnel.material));
            //console.log(room);
        }
    }
}

export { MazeObject }