<?php

namespace TotalTheme\Integration;

use Tribe__Events__Community__Main;
use Tribe__Events__Main;

defined( 'ABSPATH' ) || exit;

/**
 * Configure the Tribe Events Plugin.
 */
final class Tribe_Events {

	/**
	 * Current plugin version.
	 */
	public $plugin_version;

	/**
	 * Instance.
	 */
	private static $instance = null;

	/**
	 * Create or retrieve the instance of Tribe_Events.
	 */
	public static function instance() {
		if ( null === static::$instance ) {
			static::$instance = new self();
		}
		return static::$instance;
	}

	/**
	 * Private constructor.
	 */
	private function __construct() {
		$this->define_constants();
		$this->init_hooks();
	}

	/**
	 * Define constants.
	 */
	public function define_constants() {
		define( 'WPEX_TRIBE_EVENTS_DIR', WPEX_INC_DIR . 'integration/tribe-events/' );
		define( 'WPEX_TRIBE_EVENTS_COMMUNITY_ACTIVE', class_exists( 'Tribe__Events__Community__Main' ) );
	}

	/**
	 * Hook into actions and filters.
	 */
	public function init_hooks() {
		add_filter( 'totaltheme/overlays/styles', [ self::class, '_filter_overlay_styles' ] );

		if ( get_option( 'wpex_tribe_events_accent_color_set' ) ) {
			delete_option( 'wpex_tribe_events_accent_color_set' ); // remove deprecated setting
		}

		if ( is_customize_preview() ) {
			add_filter( 'wpex_customizer_panels', array( $this, 'customizer_settings' ) );
		}

		add_filter( 'wpex_register_sidebars_array', array( $this, 'register_events_sidebar' ), 10 );

		if ( $this->has_theme_styles() ) {
			if ( wpex_is_request( 'frontend' ) ) {
				add_action( 'wp_enqueue_scripts', array( $this, 'load_custom_stylesheet' ), 10 );
			}
		}

		if ( wpex_is_request( 'admin' ) ) {
			add_filter( 'wpex_main_metaboxes_post_types', array( $this, 'metaboxes' ), 10 );
		}

		if ( wpex_is_request( 'frontend' ) ) {
			add_filter( 'body_class', array( $this, 'body_class' ), 10 );
			add_filter( 'wpex_current_post_id', array( $this, 'set_events_page_id' ), 10 );
			add_filter( 'wpex_post_layout_class', array( $this, 'layouts' ), 10 );
			add_filter( 'wpex_page_header_title_args', array( $this, 'page_header_title_args' ), 10 );
			add_filter( 'totaltheme/page/header/subheading', array( $this, 'alter_page_header_subheading' ), 10 );
			add_filter( 'wpex_get_sidebar', array( $this, 'display_events_sidebar' ), 10 );
			add_filter( 'wpex_has_next_prev', array( $this, 'next_prev' ), 10, 2 );

			if ( get_theme_mod( 'tribe_events_main_page' ) && false === wpex_is_request( 'admin' ) ) {
				add_filter( 'template_redirect', array( $this, 'redirect_events_page_to_events_archive' ) );
			}

			if ( WPEX_TRIBE_EVENTS_COMMUNITY_ACTIVE ) {
				add_filter( 'get_edit_post_link', array( $this, 'get_edit_post_link' ), 40 );
			}

		}

	}

	/**
	 * Adds new overlay styles.
	 */
	public static function _filter_overlay_styles( array $styles ): array {
		return array_merge( $styles, [
			'tribe-events-date' => [
				'name' => esc_html__( 'Event Date: Top Right', 'total' ),
			],
			'tribe-events-date-br' => [
				'name'     => esc_html__( 'Event Date: Bottom Right', 'total' ),
				'template' => 'tribe-events-date',
				'args'     => [ 'align' => 'bottom_right' ],
			],
			'tribe-events-date-tl' => [
				'name'     => esc_html__( 'Event Date: Top Left', 'total' ),
				'template' => 'tribe-events-date',
				'args'     => [ 'align' => 'top_left' ],
			],
			'tribe-events-date-bl' => [
				'name'     => esc_html__( 'Event Date: Bottom Left', 'total' ),
				'template' => 'tribe-events-date',
				'args'     => [ 'align' => 'bottom_left' ],
			],
			'tribe-events-date-dark' => [
				'name'     => esc_html__( 'Event Date: Top Right Dark', 'total' ),
				'template' => 'tribe-events-date',
				'args'     => [ 'color_scheme' => 'wpex-surface-dark' ],
			],
			'tribe-events-date-dark-br'=> [
				'name'     => esc_html__( 'Event Date: Bottom Right Dark', 'total' ),
				'template' => 'tribe-events-date',
				'args'     => [ 'color_scheme' => 'wpex-surface-dark', 'align' => 'bottom_right' ],
			],
			'tribe-events-date-dark-tl' => [
				'name'     => esc_html__( 'Event Date: Top Left Dark', 'total' ),
				'template' => 'tribe-events-date',
				'args'     => [ 'color_scheme' => 'wpex-surface-dark', 'align' => 'top_left' ],
			],
			'tribe-events-date-dark-bl' => [
				'name'     => esc_html__( 'Event Date: Bottom Left Dark', 'total' ),
				'template' => 'tribe-events-date',
				'args'     => [ 'color_scheme' => 'wpex-surface-dark', 'align' => 'bottom_left' ],
			],
		] );
	}

	/**
	 * Check if the theme should add custom theme styles.
	 */
	public function has_theme_styles() {
		return get_theme_mod( 'tribe_events_total_styles', true );
	}

	/**
	 * Get plugin version.
	 */
	public function get_plugin_version() {
		if ( ! $this->plugin_version ) {
			if ( class_exists( 'Tribe__Events__Main' ) && defined( 'Tribe__Events__Main::VERSION' ) ) {
				$this->plugin_version = Tribe__Events__Main::VERSION;
			}
		}
		return $this->plugin_version;
	}

	/**
	 * Filter body classes.
	 */
	public function body_class( $classes ) {
		if ( get_theme_mod( 'tribe_events_page_header_details', true )
			&& is_singular( 'tribe_events' )
			&& totaltheme_call_static( 'Page\Header', 'is_enabled' )
		) {
			$classes[] = 'tribe-page-header-details';
		}
		return $classes;
	}

	/**
	 * Load custom CSS file for tweaks.
	 */
	public function load_custom_stylesheet() {
		if ( $this->has_theme_styles() ) {
			wp_enqueue_style(
				'wpex-the-events-calendar',
				totaltheme_get_css_file( 'frontend/tribe-events' )
			);
		}
	}

	/**
	 * Set page id for main events page.
	 */
	public function set_events_page_id( $id ) {
		if ( is_post_type_archive( 'tribe_events' )
			&& $page_id = wpex_get_tribe_events_main_page_id()
		) {
			return $page_id;
		}
		return $id;
	}

	/**
	 * Alter the post layouts for all events.
	 */
	public function layouts( $class ) {
		if ( self::is_event_page() ) {
			if ( is_singular( 'tribe_events' ) ) {
				$class = get_theme_mod( 'tribe_events_single_layout', 'full-width' );
			} else {
				$class = get_theme_mod( 'tribe_events_archive_layout', 'full-width' );
			}
		}
		if ( function_exists( 'tribe_is_community_edit_event_page' )
			&& function_exists( 'tribe_is_community_my_events_page' )
		) {
			if ( tribe_is_community_edit_event_page() || tribe_is_community_my_events_page() ) {
				$class = get_theme_mod( 'tribe_events_community_my_events_layout', 'full-width' );
			}
		}
		return $class;
	}

	/**
	 * Add the Page Settings metabox to the events calendar.
	 */
	public function metaboxes( $types ) {
		$types['tribe_events'] = 'tribe_events';
		return $types;
	}

	/**
	 * Alter the main page header title text for tribe events.
	 */
	public function page_header_title_args( $args ) {
		if ( ! self::is_event_page() ) {
			return $args;
		}

		// Event categories
		if ( self::is_tribe_category() ) {
			$main_page = wpex_get_tribe_events_main_page_id();
			$args['string'] = $main_page ? get_the_title( $main_page ) : esc_html__( 'Events Calendar', 'total' );
		}
		// Event months
		elseif ( self::is_tribe_month() ) {
			$post_id = wpex_get_current_post_id();
			$args['string'] = $post_id ? get_the_title( $post_id ) : esc_html__( 'Events Calendar', 'total' );
		}
		// Event list
		elseif ( self::is_tribe_event() && ! self::is_tribe_day() && ! is_single() ) {
			$args['string'] = esc_html__( 'Events List', 'total' );
		}
		// Single day events
		elseif ( self::is_tribe_day() ) {
			$args['string'] = esc_html__( 'Single Day Events', 'total' );
		}
		// Event post
		elseif ( is_singular( 'tribe_events' ) ) {
			if ( get_theme_mod( 'tribe_events_page_header_details', true ) ) {
				$args['html_tag'] = 'h1';
				$args['string']   = single_post_title( '', false );
			} else {
				$args['string'] = get_post_type_object( 'tribe_events' )->labels->name;
			}
		}

		return $args;
	}

	/**
	 * Alter the post subheading for events.
	 */
	public function alter_page_header_subheading( $subheading ) {
		if ( is_singular( 'tribe_events' ) && get_theme_mod( 'tribe_events_page_header_details', true ) ) {
			$subheading = '<div class="page-subheading-extra wpex-mt-5">';
				$schedule = tribe_events_event_schedule_details( wpex_get_current_post_id() );
				if ( $schedule ) {
					$subheading .= '<div class="schedule">';
						if ( 'font' === totaltheme_call_static( 'Theme_Icons', 'get_format' ) ) {
							// @note we use shortcode to prevent issues with SVG's and wp_kses_post
							$subheading .= '[ticon icon="calendar-o" class="wpex-mr-10"]';
						}
						$subheading .= $schedule;
					$subheading .= '</div>';
				}
			$cost = tribe_get_cost( null, true );
			if ( $cost ) {
				$subheading .= '<div class="cost">';
					if ( 'font' === totaltheme_call_static( 'Theme_Icons', 'get_format' ) ) {
						$subheading .= '[ticon icon="money" class="wpex-mr-10"]';
					} else {
						$subheading .= '<span class="wpex-bold">' . esc_html__( 'Event Cost:', 'total' ) . ' </span>';
					}
					$subheading .= wp_kses_post( $cost );
				$subheading .= '</div>';
			}
			$subheading .= '</div>';
		}
		return $subheading;
	}

	/**
	 * Register a new events sidebar area.
	 */
	public function register_events_sidebar( $sidebars ) {
		$sidebars['tribe_events_sidebar'] = esc_html__( 'Events Sidebar', 'total' );
		return $sidebars;
	}

	/**
	 * Alter main sidebar to display events sidebar.
	 */
	public function display_events_sidebar( $sidebar ) {
		if ( self::is_event_page() && is_active_sidebar( 'tribe_events_sidebar' ) ) {
			$sidebar = 'tribe_events_sidebar';
		}
		return $sidebar;
	}

	/**
	 * Disables the next/previous links for tribe events because they already have some.
	 */
	public function next_prev( $return, $post_type ) {
		if ( 'tribe_events' === $post_type ) {
			return false;
		}
		return $return;
	}

	/**
	 * Adds Customizer settings for Tribe Events.
	 */
	public function customizer_settings( $panels ) {
		$branding = ( $branding = totaltheme_get_branding_label() ) ? " ({$branding})" : '';
		$panels['tribe_events'] = [
			'title'      => "Events Calendar{$branding}",
			'is_section' => true,
			'settings'   => WPEX_TRIBE_EVENTS_DIR . 'customizer-settings.php',
			'icon'       => '\f145',
		];
		return $panels;
	}

	/**
	 * Redirects.
	 *
	 * @todo Can we remove this now?
	 */
	public function redirect_events_page_to_events_archive() {
		if ( $page_id = get_theme_mod( 'tribe_events_main_page' ) ) {
			// Redirect on page as long as it's not posts page to prevent endless loop
			if ( is_page( $page_id ) && $page_id != get_option( 'page_for_posts' ) ) {
				$redirect = get_post_type_archive_link( 'tribe_events' ) ?: home_url( '/' );
				wp_redirect( esc_url( $redirect ), 301 );
				exit();
			}

		}
	}

	/**
	 * Edit post link.
	 */
	public function get_edit_post_link( $url ) {
		if ( is_singular( 'tribe_events' ) && class_exists( 'Tribe__Events__Community__Main' ) ) {
			$url = esc_url( Tribe__Events__Community__Main::instance()->getUrl( 'edit', get_the_ID(), null, Tribe__Events__Main::POSTTYPE ) );
		}
		return $url;
	}

	/**
	 * Check if we are currently on a tribe page.
	 */
	public static function is_event_page() {
		if ( is_search() || wpex_is_blog_query() || is_singular( 'post' ) ) {
			return false; // fixes some bugs with the plugin
		}

		if ( is_singular( 'tribe_events' ) || self::is_tribe_event() || self::is_tribe_list_view() ) {
			return true;
		}

		if ( function_exists( 'tec_is_view' ) ) {
			return tec_is_view();
		} elseif ( function_exists( 'tec_is_view' ) ) {
			return tribe_is_view(); // deprecated in 6.7.0
		}

		if ( is_archive() ) {
			if ( is_post_type_archive( 'tribe_events' )
				|| self::is_tribe_month()
				|| self::is_tribe_day()
				|| self::is_tribe_category()
			) {
				return true;
			}
		}
	}

	/**
	 * Is tribe event check.
	 */
	protected static function is_tribe_event() {
		return function_exists( 'tribe_is_event' ) && tribe_is_event();
	}

	/**
	 * Is tribe list view check.
	 */
	protected static function is_tribe_list_view() {
		return function_exists( 'tribe_is_list_view' ) && tribe_is_list_view();
	}

	/**
	 * Is tribe category check.
	 */
	protected static function is_tribe_category() {
		return function_exists( 'tribe_is_event_category' ) && tribe_is_event_category();
	}

	/**
	 * Is tribe day check.
	 */
	protected static function is_tribe_day() {
		return function_exists( 'tribe_is_day' ) && tribe_is_day();
	}

	/**
	 * Is tribe month check.
	 */
	protected static function is_tribe_month() {
		return function_exists( 'tribe_is_month' ) && tribe_is_month();
	}

	/**
	 * Prevent cloning.
	 */
	private function __clone() {}

	/**
	 * Prevent unserializing.
	 */
	public function __wakeup() {
		trigger_error( 'Cannot unserialize a Singleton.', E_USER_WARNING );
	}

}