<?php

namespace AIContentWriter\Admin;

defined( 'ABSPATH' ) || exit; // Exit if accessed directly.

/**
 * Class BlockEditor.
 *
 * Wires up the block editor integration: enqueues the editor script/style and
 * exposes the data the JS needs (REST endpoint, nonce, settings link, the
 * option lists used in the modal, and whether an API key is configured).
 *
 * @since 2.2.0
 * @package AIContentWriter\Admin
 */
class BlockEditor {

	/**
	 * Constructor.
	 */
	public function __construct() {
		add_action( 'enqueue_block_editor_assets', array( $this, 'enqueue_assets' ) );
	}

	/**
	 * Enqueue block editor assets.
	 *
	 * @since 2.2.0
	 * @return void
	 */
	public function enqueue_assets() {
		$script_asset_path = AICW_PATH . 'assets/js/block-editor.asset.php';
		$asset_version     = AICW_VERSION;
		if ( file_exists( $script_asset_path ) ) {
			$asset = require $script_asset_path;
			if ( ! empty( $asset['version'] ) ) {
				$asset_version = $asset['version'];
			}
		}

		$dependencies = array(
			'wp-blocks',
			'wp-element',
			'wp-components',
			'wp-hooks',
			'wp-api-fetch',
			'wp-i18n',
			'wp-compose',
			'wp-block-editor',
			'wp-plugins',
			'wp-edit-post',
			'wp-data',
			'wp-notices',
		);

		wp_enqueue_style(
			'aicw-block-editor',
			AICW_URL . 'assets/css/block-editor.css',
			array( 'wp-components' ),
			$asset_version
		);

		wp_enqueue_script(
			'aicw-block-editor',
			AICW_URL . 'assets/js/block-editor.js',
			$dependencies,
			$asset_version,
			true
		);

		// Make the script translatable.
		if ( function_exists( 'wp_set_script_translations' ) ) {
			wp_set_script_translations( 'aicw-block-editor', 'ai-content-writer' );
		}

		$provider    = aicw_get_ai_provider( get_option( 'aicw_api_model' ) );
		$has_api_key = $provider && $provider->is_configured();

		$tones = array();
		foreach ( aicw_get_content_tones() as $tone_value => $tone_label ) {
			$tones[] = array(
				'value' => $tone_value,
				'label' => $tone_label,
			);
		}

		// Leading "Default" entry keeps the current behavior (no language line
		// in the prompt) unless the user explicitly picks one.
		$languages = array(
			array(
				'value' => '',
				'label' => __( 'Default', 'ai-content-writer' ),
			),
		);
		foreach ( aicw_get_languages() as $language_value => $language_label ) {
			$languages[] = array(
				'value' => $language_value,
				'label' => $language_label,
			);
		}

		wp_localize_script(
			'aicw-block-editor',
			'aicwEditorData',
			array(
				'endpoints' => array(
					'generateContent' => rest_url( 'aicw/v1/generateContent' ),
				),
				'nonce'     => wp_create_nonce( 'wp_rest' ),
				'settings'  => array(
					'hasApiKey'   => (bool) $has_api_key,
					'settingsUrl' => admin_url( 'admin.php?page=aicw-settings' ),
				),
				'options'   => array(
					'tones'     => $tones,
					'languages' => $languages,
					'lengths'   => array(
						array(
							'value' => '',
							'label' => __( 'Default', 'ai-content-writer' ),
						),
						array(
							'value' => 'short',
							'label' => __( 'Short', 'ai-content-writer' ),
						),
						array(
							'value' => 'medium',
							'label' => __( 'Medium', 'ai-content-writer' ),
						),
						array(
							'value' => 'long',
							'label' => __( 'Long', 'ai-content-writer' ),
						),
					),
				),
			)
		);
	}
}