/**
 * Class representing a controller for a context.
 */
export class ContextController {
    /**
     * Create a context controller.
     * @param {object} app - The app object.
     */
    constructor(app) {
        this.app = app
        this.model = null
        this.view = null

        app.context = this    // App must know the context controller.
    }

    /**
     * Handling of new data.
     *
     * @param {object} data - The data to handle, typically a JavaScript object.
     * @param {any} identifier - Property which handlers can use to identify the type of data.
     */
    onDataChanged(data, idendifier) {
    }

    prepareView() {

    }

    buildView(selector) {
        this.view.buildDOM(selector)
    }

    /**
     * Send a message to a specific component.
     *
     * @param {string} id - The id of the component, which should receive the message.
     * @param {any} message - The component is responsible for the interpretation of the message.
     */
    sendMessageToComponent(id, message) {
        const component = this.view.getComponentById(id)

        if (typeof component === 'object') {
            component.handleMessage(message)
        }
    }
}