<?php

namespace Automattic\P2\Themes\P2020;

require_once get_template_directory() . '/inc/class-ellipsis-menu.php';

class PostActions {
	public $menu;

	public function __construct() {
		$this->menu          = new EllipsisMenu();
		$this->menu->label   = esc_html__( 'Post Actions', 'p2020' );
		$this->menu->classes = 'o2-dropdown-actions o2-post-actions';

		// Override Post Actions to use custom html (ellipsis menu).
		add_filter( 'o2_before_post_actions', array( $this->menu, 'header' ), 11 );
		add_filter( 'o2_after_post_actions', array( $this->menu, 'footer' ), 11 );
		add_filter( 'o2_filter_post_action_html', array( $this, 'action_item_html' ), 12, 3 );

		add_filter( 'o2_filter_post_actions', array( $this, 'filter_xpost_post_actions' ), 14, 2 );

		// Add Copy Link (full permalink).
		add_action( 'init', array( $this, 'permalink_register_post_action_states' ), 10 );
		add_filter( 'o2_filter_post_actions', array( $this, 'permalink_add_post_action' ), 10, 2 );
		add_filter( 'o2_options', array( $this, 'permalink_update_shortlink_string' ) );
		add_action( 'wp_enqueue_scripts', array( $this, 'permalink_enqueue_scripts' ) );
	}

	public function action_item_html( $html, $action, $location = '' ) {
		if ( false === $html ) {
			$html = '';
		}

		if ( in_array( $action['action'], [ 'reply', 'login-to-reply', 'follow', 'scrolltocomments' ] ) ) {
			return '';
		}

		if ( 'resolvedposts' === $action['action'] ) {
			if ( 'o2-post-footer' !== $location ) {
				return '';
			}

			return $html;
		}

		// Grab the appropriate state settings
		global $o2_post_action_states;
		if ( ! is_array( $o2_post_action_states ) ) {
			// no post action states have been registered with o2_register_post_action_states
			return $html;
		}

		$action_name = $action['action'];
		if ( ! isset( $o2_post_action_states[ $action_name ] ) ) {
			return $html;
		}

		if ( ! isset( $action['initialState'] ) ) {
			return $html;
		}

		$initial_action_state = $action['initialState'];
		if ( ! isset( $o2_post_action_states[ $action_name ][ $initial_action_state ] ) ) {
			return $html;
		}

		$initial_state_settings = $o2_post_action_states[ $action_name ][ $initial_action_state ];

		$class_array = array_merge( $action['classes'], $initial_state_settings['classes'] ); // classes to be applied to the action (not the post)
		$url         = false === $action['href'] ? '' : $action['href'];
		$attributes  = [
			'title'            => $initial_state_settings['title'],
			'class'            => implode( ' ', $class_array ),
			'data-action'      => $action_name,
			'data-actionstate' => $initial_action_state,
		];

		if ( isset( $action['rel'] ) && false !== $action['rel'] ) {
			$attributes['rel'] = $action['rel'];
		}

		$html_options = array(
			'label'      => $initial_state_settings['shortText'],
			'url'        => $url,
			'attributes' => apply_filters( 'p2_post_actions_item_attributes', $attributes, $action ),
		);

		$item_html = $this->menu->generate_item_html( $html_options );
		if ( in_array( 'o2-actions-border-bottom', $class_array, true ) ) {
			$item_html .= $this->menu->generate_item_html( $this->menu::SEPARATOR );
		}

		return $item_html;
	}

	public function filter_xpost_post_actions( $actions = false, $post_ID = false ) {
		if ( false === $actions ) {
			$actions = array();
		}

		$xpost_url = get_post_meta( $post_ID, '_xpost_original_permalink', true );
		if ( $xpost_url ) {
			$removable_actions = array( 'follow', 'edit', 'scrolltocomments', 'reply', 'stickyposts', 'remembered-posts' );
			foreach ( $actions as $key => $item ) {
				if ( in_array( $item['action'], $removable_actions, true ) ) {
					unset( $actions[ $key ] );
				}
			}
		}

		return $actions;
	}

	public function permalink_register_post_action_states() {
		if ( function_exists( '\o2_register_post_action_states' ) ) {
			\o2_register_post_action_states(
				'permalink',
				array(
					'default' => array(
						'shortText' => __( 'Copy link', 'o2' ),
						'title'     => '',
						'classes'   => array(),
						'genericon' => 'genericon-link',
					),
				)
			);
		}
	}

	public function permalink_add_post_action( $actions = [], $post_ID = false ) {
		if ( ! $post_ID ) {
			return $actions;
		}

		$post_permalink = is_preview() ? get_preview_post_link( $post_ID ) : get_permalink( $post_ID );

		if ( ! $post_permalink ) {
			return $actions;
		}

		$index             = 35; // TODO Better index assignment
		$actions[ $index ] = array(
			'action'       => 'permalink',
			'href'         => esc_url( $post_permalink ),
			'classes'      => array( 'o2-permalink' ),
			'initialState' => 'default',
		);

		return $actions;
	}

	public function permalink_enqueue_scripts() {
		wp_enqueue_script(
			'copy-permalink-js',
			get_template_directory_uri() . '/inc/post-actions/js/copy-permalink.js',
			[ 'o2-cocktail' ],
			filemtime( __FILE__ ),
			true
		);
	}
	/**
	 * Since we are reusing the shortlink event handler, we need to make the success message
	 * a bit generic to fit both shortlink and permalink actions.
	 */
	public function permalink_update_shortlink_string( $options ) {
		$options['strings']['shortlinkCopied'] = __( 'Link copied to clipboard.', 'p2020' );
		return $options;
	}
}

new PostActions();