import {AbstractActionManager, AbstractMesh, ActionManager, Observable, Scene, WebXRDefaultExperience} from "@babylonjs/core";
import {DiagramEntity, DiagramEntityType, DiagramEvent, DiagramEventType} from "./types/diagramEntity";
import log from "loglevel";

import {AppConfig} from "../util/appConfig";
import {buildEntityActionManager} from "./functions/buildEntityActionManager";
import {DefaultScene} from "../defaultScene";
import {DiagramMenuManager} from "./diagramMenuManager";
import {DiagramEventObserverMask} from "./types/diagramEventObserverMask";
import {DiagramObject} from "./diagramObject";
import {getMe} from "../util/me";
import {UserModelType} from "../users/userTypes";
import {vectoxys} from "./functions/vectorConversion";
import {controllerObservable} from "../controllers/controllers";
import {ControllerEvent} from "../controllers/types/controllerEvent";


export class DiagramManager {
    private readonly _logger = log.getLogger('DiagramManager');
    public readonly _config: AppConfig;
    private readonly _controllerObservable: Observable<ControllerEvent>;
    private readonly _diagramEntityActionManager: ActionManager;
    public readonly onDiagramEventObservable: Observable<DiagramEvent> = new Observable();
    public readonly onUserEventObservable: Observable<UserModelType> = new Observable();
    private readonly _diagramMenuManager: DiagramMenuManager;
    private readonly _scene: Scene;
    private readonly _diagramObjects: Map<string, DiagramObject> = new Map<string, DiagramObject>();
    private readonly _me: string;
    private _moving: number = 10;
    private _i: number = 0;

    public get diagramMenuManager(): DiagramMenuManager {
        return this._diagramMenuManager;
    }

    public setXR(xr: WebXRDefaultExperience): void {
        this._diagramMenuManager.setXR(xr);
    }

    constructor(readyObservable: Observable<boolean>) {
        this._me = getMe();
        this._scene = DefaultScene.Scene;
        this._config = new AppConfig();
        this._diagramMenuManager = new DiagramMenuManager(this.onDiagramEventObservable, controllerObservable, readyObservable);
        this._diagramEntityActionManager = buildEntityActionManager(controllerObservable);
        this.onDiagramEventObservable.add(this.onDiagramEvent, DiagramEventObserverMask.FROM_DB, true, this);
        this.onUserEventObservable.add((user) => {
            if (user.id != this._me) {
                this._logger.debug('user event', user);
            }
        });
        window.setInterval(() => {
            this._i++;
            const platform = this._scene.getMeshByName('platform');

            if (!platform || !platform.physicsBody) {
                return;
            }
            if (platform.physicsBody) {
                if ((this._i % this._moving) == 0) {
                    this.onUserEventObservable.notifyObservers(
                        {
                            id: this._me,
                            name: 'me',
                            type: 'user',
                            base: {
                                position: vectoxys(platform.absolutePosition),
                                rotation: vectoxys(platform.absoluteRotationQuaternion.toEulerAngles()),
                                velocity: vectoxys(platform.physicsBody.getLinearVelocity())
                            },
                        }
                    );
                }
                if (platform.physicsBody.getLinearVelocity().length() > 0.01) {
                    this._moving = 1;
                } else {
                    this._moving = 10;
                }

            }


        }, 100);

        document.addEventListener('uploadImage', (event: CustomEvent) => {
            const diagramEntity: DiagramEntity = {
                template: '#image-template',
                image: event.detail.data,
                text: event.detail.name,
                type: DiagramEntityType.ENTITY,
                position: {x: 0, y: 1.6, z: 0},
                rotation: {x: 0, y: Math.PI, z: 0},
                scale: {x: 1, y: 1, z: 1},
            }
            const object = new DiagramObject(this._scene, this.onDiagramEventObservable, {diagramEntity: diagramEntity});
            this._diagramObjects.set(diagramEntity.id, object);

            //const newMesh = buildMeshFromDiagramEntity(diagramEntity, this._scene);
            if (this.onDiagramEventObservable) {
                this.onDiagramEventObservable.notifyObservers({
                    type: DiagramEventType.ADD,
                    entity: diagramEntity
                }, DiagramEventObserverMask.TO_DB);
            }

        });
        this._logger.debug("DiagramManager constructed");
    }

    public get actionManager(): AbstractActionManager {
        return this._diagramEntityActionManager;
    }

    public getDiagramObject(id: string) {
        return this._diagramObjects.get(id);
    }

    public isDiagramObject(mesh: AbstractMesh) {
        return this._diagramObjects.has(mesh?.id)
    }

    public createCopy(id: string): DiagramObject {
        const diagramObject = this._diagramObjects.get(id);
        if (!diagramObject) {
            this._logger.warn('createCopy called with invalid diagram object', id);
            return null;
        }
        const obj = diagramObject.clone();
        return obj;
    }

    public addObject(diagramObject: DiagramObject) {
        this._diagramObjects.set(diagramObject.diagramEntity.id, diagramObject);
    }

    public get config(): AppConfig {
        return this._config;
    }


    private onDiagramEvent(event: DiagramEvent) {
        let diagramObject = this._diagramObjects.get(event?.entity?.id);
        switch (event.type) {
            case DiagramEventType.CLEAR:
                this._diagramObjects.forEach((value) => {

                    value.dispose();
                });
                this._diagramObjects.clear();
                break;
            case DiagramEventType.ADD:
                if (diagramObject) {
                    diagramObject.fromDiagramEntity(event.entity);
                } else {
                    diagramObject = DiagramObject.CreateObject(this._scene,
                        this.onDiagramEventObservable,
                        {diagramEntity: event.entity, actionManager: this._diagramEntityActionManager});
                }
                if (diagramObject) {
                    this._diagramObjects.set(event.entity.id, diagramObject);
                } else {
                    this._logger.error('failed to create diagram object for ', event.entity);
                }
                break;
            case DiagramEventType.REMOVE:
                if (diagramObject) {
                    diagramObject.dispose();
                }
                this._diagramObjects.delete(event?.entity?.id);
                break;
            case DiagramEventType.MODIFY:
                this._logger.debug(event);
                //diagramObject = this._diagramObjects.get(event.entity.id);
                if (diagramObject && event.entity.text && event.entity.text != diagramObject.text) {
                    diagramObject.text = event.entity.text;
                } else {
                    this._logger.warn('Skipping text update for', event);
                }

                if (event.entity.position) {
                    //diagramObject.position = event.entity.position;
                }
                break;
        }
    }
}