import { PerspectiveCamera } from 'three';
import {
    DEFAULT_LAYER_MASK,
    HELPER_LAYER_MASK,
    PRODUCT_LAYER_MASK,
    UI_LAYER_MASK,
} from '../constant/VisibilityLayerMask.ts';

export type DIVEPerspectiveCameraSettings = {
    fov: number;
    near: number;
    far: number;
};

export const DIVEPerspectiveCameraDefaultSettings: DIVEPerspectiveCameraSettings =
    {
        fov: 70,
        near: 0.1,
        far: 1000,
    };

/**
 * A Perspective camera. Can change the layer mask to show different objects.
 *
 * @module
 */

export default class DIVEPerspectiveCamera extends PerspectiveCamera {
    public static readonly EDITOR_VIEW_LAYER_MASK =
        DEFAULT_LAYER_MASK |
        UI_LAYER_MASK |
        HELPER_LAYER_MASK |
        PRODUCT_LAYER_MASK;
    public static readonly LIVE_VIEW_LAYER_MASK = PRODUCT_LAYER_MASK;

    public onSetCameraLayer: (mask: number) => void = () => {};

    constructor(
        settings: Partial<DIVEPerspectiveCameraSettings> = DIVEPerspectiveCameraDefaultSettings,
    ) {
        super(
            settings.fov || DIVEPerspectiveCameraDefaultSettings.fov,
            1,
            settings.near || DIVEPerspectiveCameraDefaultSettings.near,
            settings.far || DIVEPerspectiveCameraDefaultSettings.far,
        );

        this.layers.mask = DIVEPerspectiveCamera.EDITOR_VIEW_LAYER_MASK;
    }

    public OnResize(width: number, height: number): void {
        this.aspect = width / height;
        this.updateProjectionMatrix();
    }

    public SetCameraLayer(layer: 'LIVE' | 'EDITOR'): void {
        this.layers.mask =
            layer === 'LIVE'
                ? DIVEPerspectiveCamera.LIVE_VIEW_LAYER_MASK
                : DIVEPerspectiveCamera.EDITOR_VIEW_LAYER_MASK;
        this.onSetCameraLayer(this.layers.mask);
    }
}