import GObject from 'gi://GObject';

import * as utils from '../conveniences/utils.js';
const Clutter = await utils.import_in_shell_only('gi://Clutter');

const DEFAULT_PARAMS = {
    factor: 8, downsampling_mode: 0, opacity_factor: 1
};


export const PixelizeEffect = utils.IS_IN_PREFERENCES ?
    { default_params: DEFAULT_PARAMS } :
    new GObject.registerClass({
        GTypeName: "PixelizeEffect",
        Properties: {
            'factor': GObject.ParamSpec.int(
                `factor`,
                `Factor`,
                `Factor`,
                GObject.ParamFlags.READWRITE,
                0, 64,
                8,
            ),
            'downsampling_mode': GObject.ParamSpec.int(
                `downsampling_mode`,
                `Downsampling mode`,
                `Downsampling mode`,
                GObject.ParamFlags.READWRITE,
                0, 2,
                0,
            ),
            'opacity_factor': GObject.ParamSpec.double(
                `opacity_factor`,
                `Opacity factor`,
                `Opacity factor`,
                GObject.ParamFlags.READWRITE,
                0.0, 1.0,
                1.0,
            )
        }
    }, class PixelizeEffect extends Clutter.Effect {
        constructor(params) {
            super();

            utils.setup_params(this, params);
        }

        static get default_params() {
            return DEFAULT_PARAMS;
        }

        get factor() {
            return this._factor;
        }

        set factor(value) {
            this._factor = value;
        }

        get downsampling_mode() {
            return this._downsampling_mode;
        }

        set downsampling_mode(value) {
            this._downsampling_mode = value;
        }

        get opacity_factor() {
            return this._opacity_factor;
        }

        set opacity_factor(value) {
            this._opacity_factor = value;
        }
    });