<?php
/**
 * Main plugin controller for AiCB Chat Widget.
 *
 * @package AiCB_Chat_Widget
 */

defined( 'ABSPATH' ) || exit;

/**
 * Wires up settings, admin, REST and the front-end widget.
 */
class AICBC_Plugin {

	/**
	 * Settings controller.
	 *
	 * @var AICBC_Settings
	 */
	public $settings;

	/**
	 * Constructor: boot all components.
	 */
	public function __construct() {
		if ( is_admin() ) {
			AICBC_Store::maybe_upgrade();
		}

		$this->settings = new AICBC_Settings();
		$this->settings->init();

		$admin = new AICBC_Admin( $this->settings );
		$admin->init();

		$rest = new AICBC_REST();
		$rest->init();

		add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_widget' ) );
		add_filter( 'script_loader_tag', array( $this, 'hosted_script_attrs' ), 10, 2 );
	}

	/**
	 * Enqueue the chat widget on the public site.
	 *
	 * @return void
	 */
	public function enqueue_widget() {
		if ( ! AICBC_Settings::get( 'enabled' ) || is_admin() ) {
			return;
		}

		if ( 'hosted' === AICBC_Settings::get( 'mode' ) ) {
			$key = trim( (string) AICBC_Settings::get( 'hosted_site_key' ) );
			if ( '' === $key ) {
				return;
			}
			$base = untrailingslashit( (string) AICBC_Settings::get( 'aicb_base', 'https://caimunicate.com' ) );
			wp_enqueue_script( 'aicb-chat-hosted', $base . '/widget.js', array(), AICBC_VERSION, true );
			return;
		}

		wp_enqueue_script( 'aicb-chat-widget', AICBC_URL . 'assets/js/aicb-chat-widget.js', array(), AICBC_VERSION, true );
		wp_localize_script(
			'aicb-chat-widget',
			'AICBC_CFG',
			array(
				'rest'     => esc_url_raw( rest_url( AICBC_REST::NS ) ),
				'title'    => AICBC_Settings::bot_name(),
				'greeting' => AICBC_Settings::greeting(),
			)
		);
	}

	/**
	 * Add the data-site-key attribute + async to the hosted Caimunicate widget.
	 *
	 * @param string $tag    Script tag HTML.
	 * @param string $handle Script handle.
	 * @return string
	 */
	public function hosted_script_attrs( $tag, $handle ) {
		if ( 'aicb-chat-hosted' !== $handle ) {
			return $tag;
		}
		$key = trim( (string) AICBC_Settings::get( 'hosted_site_key' ) );
		return str_replace( ' src=', ' async data-site-key="' . esc_attr( $key ) . '" src=', $tag );
	}
}