<?php
/**
 * Render asset loader.
 *
 * Enqueues addifect render engine assets for frontend pages.
 *
 * @package Addifect
 * @version 1.0.2
 */

defined( 'ABSPATH' ) || exit;

/**
 * Enqueue addifect render assets.
 *
 * @return void
 */
function addifect_enqueue_render_assets() {

	// Do not load render assets inside Studio.
	if ( get_query_var( 'addifect_studio' ) ) {
		return;
	}

	// Resolve the current template ID.
	$template_id = addifect_resolve_template_id();

	$index                 = addifect_get_active_index();
	$template_last_updated = isset( $index['updated'] )
		? (string) $index['updated']
		: '1';

	/**
	 * 1. Enqueue the "God" CSS File.
	 * We use the version constant to ensure users always get the latest styles.
	 */
	$god_css_url = addifect_get_url( 'render-styles' ); // Ensure this points to your .css file.

	wp_enqueue_style(
		'addifect-render-styles',
		$god_css_url,
		array(),
		ADDIFECT_RENDER_ENGINE_VERSION,
		'all'
	);

	/**
	 * 2. Scripts Registration & Enqueue.
	 */
	$render_engine_url = addifect_get_url( 'render' );
	$vendor_url        = addifect_get_url( 'render-vendors' );

	// 1. Load Vendor Asset Data
	$vendor_asset_path = ADDIFECT_PLUGIN_PATH . 'assets/render/js/render-vendors.asset.php';
	$vendor_asset      = file_exists( $vendor_asset_path ) ?
		include $vendor_asset_path :
		array(
			'dependencies' => array(),
			'version'      => ADDIFECT_RENDER_ENGINE_VERSION,
		);

	wp_enqueue_script(
		'addifect-render-vendor',
		$vendor_url,
		$vendor_asset['dependencies'],
		$vendor_asset['version'],
		true
	);

	// 2. Load Main Render Engine Asset Data
	$engine_asset_path = ADDIFECT_PLUGIN_PATH . 'assets/render/js/render.asset.php';
	$engine_asset      = file_exists( $engine_asset_path ) ?
		include $engine_asset_path :
		array(
			'dependencies' => array(),
			'version'      => ADDIFECT_RENDER_ENGINE_VERSION,
		);

	// Ensure our vendor script is treated as a dependency for the engine.
	$engine_deps = array_merge( $engine_asset['dependencies'], array( 'addifect-render-vendor' ) );

	wp_enqueue_script(
		'addifect-render-engine',
		$render_engine_url,
		$engine_deps,
		$engine_asset['version'],
		true
	);

	/**
	 * 3. Runtime Data.
	 */

	$runtime_data = array(
		'assetsPath'       => ADDIFECT_PLUGIN_URL . 'assets/render/js/',
		'templatesUpdated' => $template_last_updated,
	);

	wp_localize_script(
		'addifect-render-engine',
		'addifectRender',
		$runtime_data
	);

	// Explicit Data Retrieval.

	$global_data = addifect_get_template( '__global' );
	if ( false === $global_data || ! is_array( $global_data ) ) {
		$global_data = array();
	}

	$font_version = '1';
	if ( ! empty( $global_data['fontVersion'] ) ) {
		$font_version = (string) $global_data['fontVersion'];
	}

	/**
	 * 5. Enqueue Google Fonts
	 */
	if ( ! empty( $global_data['fontURL'] ) ) {
		wp_enqueue_style( 'addifect-fonts', esc_url( $global_data['fontURL'] ), array(), $font_version );
	}

	/**
	 * 6. Enqueue Global CSS Variables
	 */
	if ( ! empty( $global_data['css'] ) ) {
		$global_css = wp_strip_all_tags( (string) $global_data['css'] );
		wp_add_inline_style( 'addifect-render-styles', $global_css );
	}

	/**
	 * 7. Enqueue Template CSS
	 */
	// Load current template and its associated metadata.
	$addifect_current_template_data = addifect_get_template( $template_id );
	if ( false === $addifect_current_template_data || ! is_array( $addifect_current_template_data ) ) {
		$addifect_current_template_data = array();
	}

	// Build the global CSS string from main template and parts.
	$addifect_css = '';

	if ( ! empty( $addifect_current_template_data['ssr']['css'] ) ) {

		$addifect_css .= $addifect_current_template_data['ssr']['css'] . "\n";
	}

	if ( ! empty( $addifect_current_template_data['globalParts']['top'] ) ) {
		$addifect_header_data = addifect_get_template(
			$addifect_current_template_data['globalParts']['top']
		);
		if ( is_array( $addifect_header_data ) && ! empty( $addifect_header_data['ssr']['css'] ) ) {
			$addifect_css .= $addifect_header_data['ssr']['css'] . "\n";
		}
	}

	if ( ! empty( $addifect_current_template_data['globalParts']['bottom'] ) ) {
		$addifect_footer_data = addifect_get_template(
			$addifect_current_template_data['globalParts']['bottom']
		);
		if ( is_array( $addifect_footer_data ) && ! empty( $addifect_footer_data['ssr']['css'] ) ) {
			$addifect_css .= $addifect_footer_data['ssr']['css'] . "\n";
		}
	}

	/**
	 * THE FINAL PUZZLE PIECE: Current Post Specific CSS
	 * If the user is viewing a specific blog post or page, grab the
	 * custom block styles that were generated specifically for this post's content.
	 */
	if ( is_singular() ) {
		$current_post_id = get_queried_object_id();
		$post_css        = get_post_meta( $current_post_id, '_addifect_post_css', true );

		if ( ! empty( $post_css ) ) {
			$addifect_css .= "\n/* --- Addifect Post Content Styles --- */\n";
			$addifect_css .= $post_css . "\n";
		}
	}

	/**
	 * 8. Enqueue Template CSS
	 * We use a "virtual" handle ('addifect-style-root') with an empty source.
	 * This ensures WordPress generates a dedicated <style> tag with a unique ID.
	 * Our frontend render engine targets this specific ID.
	 * at runtime to dynamically update styles without a page reload.
	 */
	if ( ! empty( $addifect_css ) ) {
		$addifect_css_version = $template_last_updated;

		wp_register_style( 'addifect-style-root', false, array(), $addifect_css_version );
		wp_enqueue_style( 'addifect-style-root' );

		$sanitized_css = wp_strip_all_tags( (string) $addifect_css );
		wp_add_inline_style( 'addifect-style-root', $sanitized_css );
	}
}

add_action( 'wp_enqueue_scripts', 'addifect_enqueue_render_assets' );