<?php

/**
 * Instagram Feed block with live preview.
 *
 * @since 2.3
 */

use InstagramFeed\Helpers\Util;

class SB_Instagram_Blocks
{
	/**
	 * Checking if is Gutenberg REST API call.
	 *
	 * @return bool True if is Gutenberg REST API call.
	 * @since 2.3
	 */
	public static function is_gb_editor()
	{
        return defined('REST_REQUEST') && REST_REQUEST && !empty($_REQUEST['context']) && 'edit' === $_REQUEST['context']; // phpcs:ignore
	}

	/**
	 * Indicates if current integration is allowed to load.
	 *
	 * @return bool
	 * @since 1.8
	 */
	public function allow_load()
	{
		return function_exists('register_block_type');
	}

	/**
	 * Loads an integration.
	 *
	 * @since 2.3
	 */
	public function load()
	{
		$this->hooks();
	}

	/**
	 * Integration hooks.
	 *
	 * @since 2.3
	 */
	protected function hooks()
	{
		add_action('init', array($this, 'register_block'), 99);
		add_action('enqueue_block_editor_assets', array($this, 'enqueue_block_editor_assets'));
	}

	/**
	 * Register Instagram Feed Gutenberg block on the backend.
	 *
	 * @since 2.3
	 */
	public function register_block()
	{

		wp_register_style(
			'sbi-blocks-styles',
			trailingslashit(SBI_PLUGIN_URL) . 'css/sb-blocks.css',
			array('wp-edit-blocks'),
			SBIVER
		);

		$attributes = array(
			'shortcodeSettings' => array(
				'type' => 'string',
			),
			'noNewChanges' => array(
				'type' => 'boolean',
			)
		);

		register_block_type(
			'sbi/sbi-feed-block',
			array(
				'attributes' => $attributes,
				'render_callback' => array($this, 'get_feed_html'),
			)
		);
	}

	/**
	 * Load Instagram Feed Gutenberg block scripts.
	 *
	 * @since 2.3
	 */
	public function enqueue_block_editor_assets()
	{
		$db = sbi_get_database_settings();

		sb_instagram_scripts_enqueue(true);

		wp_enqueue_style('sbi-blocks-styles');
		wp_enqueue_script(
			'sbi-feed-block',
			trailingslashit(SBI_PLUGIN_URL) . 'js/sb-blocks.js',
			array('wp-blocks', 'wp-i18n', 'wp-element'),
			SBIVER,
			true
		);

		$shortcodeSettings = '';

		$i18n = array(
			'addSettings' => esc_html__('Add Settings', 'instagram-feed'),
			'shortcodeSettings' => esc_html__('Shortcode Settings', 'instagram-feed'),
			'example' => esc_html__('Example', 'instagram-feed'),
			'preview' => esc_html__('Apply Changes', 'instagram-feed'),

		);

		wp_localize_script(
			'sbi-feed-block',
			'sbi_block_editor',
			array(
				'wpnonce' => wp_create_nonce('sb-instagram-blocks'),
				'canShowFeed' => !empty($db['connected_accounts']),
				'configureLink' => admin_url('admin.php?page=sbi-settings'),
				'shortcodeSettings' => $shortcodeSettings,
				'i18n' => $i18n,
			)
		);
	}

	/**
	 * Get form HTML to display in a Instagram Feed Gutenberg block.
	 *
	 * @param array $attr Attributes passed by Instagram Feed Gutenberg block.
	 *
	 * @return string
	 * @since 2.3
	 */
	public function get_feed_html($attr)
	{

		$return = '';

		$shortcode_settings = isset($attr['shortcodeSettings']) ? $attr['shortcodeSettings'] : '';

		$shortcode_settings = str_replace(array('[instagram-feed', ']'), '', $shortcode_settings);

		$return .= do_shortcode('[instagram-feed ' . $shortcode_settings . ']');

		return $return;
	}
}
