/**
 * This file is part of the jps-like-websites lib
 * URL: https://git.labos.goip.de/chris/jpc-like-websites
 * @copyright by its creator Christian Martin 
 */


/**
 * @inheritdoc
 * @extends ChildbearerComponent
 * @abstract
 */
class ModifiableComponent extends ChildbearerComponent {
    /**
     * @type {Modifier} modifier
     */
    _modifier;

    constructor(element, attr = {}) {
        super(element, attr);
        this._modifier = new Modifier();
    }

    /**
     * Sets, updates or overwrites the Modifier-Object for this component
     * @param {Modifier} modifier 
     * @param {boolean|ExtStorage|ExtStoreType|OverwriteBehaviour} [extStore=null] 
     * @returns {Component} this component object
     */
    modifier(modifier, underTheName = "", extStore = false) {
        if (underTheName === "") {
            underTheName = `.${this._compName}-style-${this._styles.length}`;
        }       

        if (!extStore) {
            this._modifier = this._modifier
                .join(modifier.ensureModifier());
        } else {
            this.addStyleClass(underTheName);
            this._styles.push(
                new SStoreDefinition(
                    underTheName,
                    modifier.ensureModifier()
                )
            );
        }

        return this;
    }

    /**
     * Returns a Modifier to chain modifications 
     * instead of setting them within an sepperate context.
     * @returns {ChainableModifier} 
     */
    chainModifier() {
        return new ChainableModifier(this);
    }

}