vk-bot-sdk/structures/keyboard/keyboard.js

NodeJS Lib for VK API

var Button = require( './button' );
var TextButton = require( './text-button' );

class Keyboard {
	/**
	 * @param {Object} options
	 */
	constructor( { oneTime = false } = {}) {
		this.oneTime = oneTime;
		this.buttons = [];
	}

	/**
	 * Return keyboard
	 *
	 * @param {Array}  rows
	 * @param {Object} options
	 *
	 * @return {Keyboard}
	 */
	static keyboard( rows, options ) {

		if ( rows.length > 10 ) {
            return console.error( 'Max count of rows 10' );
		}

		const keyboard = new Keyboard( options );

		for ( const buttons of rows ) {
			keyboard.addButtons(buttons);
		}

		return keyboard;
	}

	/**
	 * Returns the text button
	 *
	 * @param {Object} options
	 *
	 * @return {TextButton}
	 */
	static textButton(options) {
		return new TextButton(options);
	}

	/**
	 * Add button
	 *
	 * @param {Button[]} buttons
	 */
	addButtons( buttons ) {
		if (!Array.isArray(buttons)) {
			buttons = [buttons];
		}

		if (buttons.length > 4) {
			return console.error( 'Max count of columns 4' );
		}

		this.buttons.push( buttons );

		return this;
	}

	/**
	 * Returns a string to keyboard a VK
	 *
	 * @return {string}
	 */
	toString() {
		const buttons = this.buttons.map((buttonRow) => {
			if (!Array.isArray(buttonRow)) {
				return buttonRow.toJSON();
			}

			return buttonRow.map( button => button.toJSON() );
		});

		return JSON.stringify({
			one_time: this.oneTime,
			buttons
		});
	}
}

module.exports = Keyboard;