/**
 * Represents a socket message.
 */
export default class Message {
    #origin;
    #data;
    #message;

    /**
     * Creates an instance of Message.
     * @param {string} rawText - The raw text of the socket message.
     */
    constructor(rawText) {
        this.#origin = rawText;
        try {
            this.#data = JSON.parse(rawText.trim());
            this.#message = this.#data.message;
        } catch(err) {
            this.#data = undefined;
            this.#message = rawText;
        }
    }

    /**
     * Returns an iterable of the property names in the message data.
     * @returns {Generator<string>} - An iterable of property names.
     */
    *getProps() {
        if (!this.#data || typeof(this.#data) != 'object') return;
        for (const prop in this.#data) {
            yield prop;
        }
    }

    /**
     * Retrieves the value of a specific property in the message data.
     * @param {string} key - The key of the property.
     * @returns {*} - The value associated with the specified key.
     */
    get(key) {
        return this.#data[key];
    }

    /**
     * Retrieves the text content.
     * @returns {string} - the text content of the socket message;
     */
    text() {
        return this.#data.message || '';
    }
}