<?php
/**
 * Player Class
 *
 * Frontend audio player implementation.
 *
 * @package Accessibility_Audio_TTS
 */

namespace Accessibility_Audio_TTS\Frontend;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Player Class
 *
 * Handles audio player rendering and content integration.
 */
class Player {
	/**
	 * Supported post types.
	 *
	 * @var array
	 */
	private $supported_post_types;

	/**
	 * Player renderer instance.
	 *
	 * @var Player_Renderer
	 */
	private $renderer;

	/**
	 * Constructor
	 *
	 * @param array|null $supported_post_types Supported post types.
	 */
	public function __construct( $supported_post_types = null ) {
		if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
			accessibility_audio_tts_debug_log( 'AAT: Player constructor started' );
		}

		// If post types not passed, get from settings.
		if ( null === $supported_post_types ) {
			$this->supported_post_types = get_option( 'accessibility_audio_tts_post_types', array( 'post' ) );
		} else {
			$this->supported_post_types = $supported_post_types;
		}

		if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
			accessibility_audio_tts_debug_log( 'AAT: Creating Player_Renderer...' );
		}
		$this->renderer = new Player_Renderer();
		if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
			accessibility_audio_tts_debug_log( 'AAT: Player_Renderer created successfully' );
		}

		add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_assets' ) );
		add_filter( 'the_content', array( $this, 'add_player_to_content' ), 20 );

		if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
			accessibility_audio_tts_debug_log( 'AAT: Player constructor completed, content filter registered' );
		}
	}

	/**
	 * Add player to post content if audio exists
	 *
	 * @param string $content Post content.
	 * @return string Modified content.
	 */
	public function add_player_to_content( $content ) {
		global $post;

		// Only add player on single post/page views.
		if ( ! is_singular() || ! $post || ! in_array( $post->post_type, $this->supported_post_types, true ) ) {
			return $content;
		}
		if ( ! \Accessibility_Audio_TTS\Core\Audio_Access::can_read( $post ) ) { return $content; }

		// Check if post has generated audio.
		try { $file = \Accessibility_Audio_TTS\Core\Audio_Access::resolve_audio_file( $post->ID ); }
		catch ( \Throwable $error ) { return $content; }
		$audio_url = $file['url'] ?? '';

		if ( $audio_url ) {
			// Add player before content.
			$player_html = $this->renderer->render_player( $post->ID, $audio_url );
			$content     = $player_html . $content;
		}

		return $content;
	}

	/**
	 * Enqueue assets for frontend player
	 * Note: Asset loading is now handled by Frontend_Asset_Loader via Asset_Manager
	 * This method only handles preconnect optimization
	 */
	public function enqueue_assets() {
		// Only enqueue preconnect if we're on a singular post/page with audio.
		if ( ! is_singular() ) {
			return;
		}

		global $post;
		if ( ! $post || ! in_array( $post->post_type, $this->supported_post_types, true ) ) {
			return;
		}

		// Check if post has generated audio.
		$audio_url = get_post_meta( $post->ID, 'accessibility_audio_tts_url', true );
		if ( ! $audio_url ) {
			return;
		}

		// Load jQuery (required by player scripts loaded by Frontend_Asset_Loader).
		wp_enqueue_script( 'jquery' );
	}
}