<?php
/**
 * MainWP Child Comments
 *
 * This file handles all Child Site comment actions.
 *
 * @package MainWP\Child
 */

namespace MainWP\Child;

/**
 * Class MainWP_Child_Comments
 *
 * Handles all Child Site comment actions.
 */
class MainWP_Child_Comments {

    /**
     * Public static variable to hold the single instance of the class.
     *
     * @var mixed Default null
     */
    protected static $instance = null;

    /**
     * Comments and clauses.
     *
     * @var string Comments and clauses.
     */
    private $comments_and_clauses;

    /**
     * Get Class Name.
     *
     * @return string
     */
    public static function get_class_name() {
        return __CLASS__;
    }

    /**
     * MainWP_Child_Comments constructor.
     *
     * Run any time class is called.
     */
    public function __construct() {
        $this->comments_and_clauses = '';
    }

    /**
     * Create a public static instance of ainWP_Child_Comments.
     *
     * @return MainWP_Child_Comments|null
     */
    public static function get_instance() {
        if ( null === static::$instance ) {
            static::$instance = new self();
        }
        return static::$instance;
    }

    /**
     * MainWP Child Comment actions: approve, unapprove, spam, unspam, trash, restore, delete.
     *
     * @uses \MainWP\Child\MainWP_Child_Links_Checker::get_class_name()
     * @uses \MainWP\Child\MainWP_Helper::write()
     */
    public function comment_action() {
        $action = MainWP_System::instance()->validate_params( 'action' );
        // phpcs:disable WordPress.Security.NonceVerification
        $commentId = isset( $_POST['id'] ) ? sanitize_text_field( wp_unslash( $_POST['id'] ) ) : '';

        if ( 'approve' === $action ) {
            wp_set_comment_status( $commentId, 'approve' );
        } elseif ( 'unapprove' === $action ) {
            wp_set_comment_status( $commentId, 'hold' );
        } elseif ( 'spam' === $action ) {
            wp_spam_comment( $commentId );
        } elseif ( 'unspam' === $action ) {
            wp_unspam_comment( $commentId );
        } elseif ( 'trash' === $action ) {
            add_action( 'trashed_comment', array( MainWP_Child_Links_Checker::get_class_name(), 'hook_trashed_comment' ), 10, 1 );
            wp_trash_comment( $commentId );
        } elseif ( 'restore' === $action ) {
            wp_untrash_comment( $commentId );
        } elseif ( 'delete' === $action ) {
            wp_delete_comment( $commentId, true );
        } else {
            $information['status'] = 'FAIL';
        }

        if ( ! isset( $information['status'] ) ) {
            $information['status'] = 'SUCCESS';
        }
        // phpcs:enable
        MainWP_Helper::write( $information );
    }

    /**
     * MainWP Child Bulk Comment actions: approve, unapprove, spam, unspam, trash, restore, delete.
     *
     * @uses \MainWP\Child\MainWP_Helper::write()
     */
    public function comment_bulk_action() {
        $action = MainWP_System::instance()->validate_params( 'action' );
        // phpcs:disable WordPress.Security.NonceVerification
        $commentIds = isset( $_POST['ids'] ) ? explode( ',', sanitize_text_field( wp_unslash( $_POST['ids'] ) ) ) : array();
        // phpcs:enable
        $information['success'] = 0;
        foreach ( $commentIds as $commentId ) {
            if ( $commentId ) {
                ++$information['success'];
                if ( 'approve' === $action ) {
                    wp_set_comment_status( $commentId, 'approve' );
                } elseif ( 'unapprove' === $action ) {
                    wp_set_comment_status( $commentId, 'hold' );
                } elseif ( 'spam' === $action ) {
                    wp_spam_comment( $commentId );
                } elseif ( 'unspam' === $action ) {
                    wp_unspam_comment( $commentId );
                } elseif ( 'trash' === $action ) {
                    wp_trash_comment( $commentId );
                } elseif ( 'restore' === $action ) {
                    wp_untrash_comment( $commentId );
                } elseif ( 'delete' === $action ) {
                    wp_delete_comment( $commentId, true );
                } else {
                    --$information['success'];
                }
            }
        }
        MainWP_Helper::write( $information );
    }

    /**
     * Comment WHERE Clauses.
     *
     * @param array $clauses MySQL WHERE Clause.
     *
     * @return array $clauses, Array of MySQL WHERE Clauses.
     */
    public function comments_clauses( $clauses ) {
        if ( $this->comments_and_clauses ) {
            $clauses['where'] .= ' ' . $this->comments_and_clauses;
        }

        return $clauses;
    }

    /**
     * Get all comments.
     *
     * @uses \MainWP\Child\MainWP_Helper::write()
     */
    public function get_all_comments() { //phpcs:ignore -- NOSONAR - complex.

        /**
         * WordPress Database instance.
         *
         * @global object $wpdb
         */
        global $wpdb;

        add_filter( 'comments_clauses', array( &$this, 'comments_clauses' ) );
        // phpcs:disable WordPress.Security.NonceVerification
        if ( isset( $_POST['postId'] ) ) {
            $this->comments_and_clauses .= $wpdb->prepare( " AND $wpdb->comments.comment_post_ID = %d ", sanitize_text_field( wp_unslash( $_POST['postId'] ) ) );
        } else {
            if ( isset( $_POST['keyword'] ) && '' !== $_POST['keyword'] ) {
                $this->comments_and_clauses .= $wpdb->prepare( " AND $wpdb->comments.comment_content LIKE %s ", '%' . $wpdb->esc_like( sanitize_text_field( wp_unslash( $_POST['keyword'] ) ) ) . '%' );
            }
            if ( isset( $_POST['dtsstart'] ) && '' !== $_POST['dtsstart'] ) {
                $this->comments_and_clauses .= $wpdb->prepare( " AND $wpdb->comments.comment_date > %s ", $wpdb->esc_like( sanitize_text_field( wp_unslash( $_POST['dtsstart'] ) ) ) );
            }
            if ( isset( $_POST['dtsstop'] ) && '' !== $_POST['dtsstop'] ) {
                $this->comments_and_clauses .= $wpdb->prepare( " AND $wpdb->comments.comment_date < %s ", $wpdb->esc_like( sanitize_text_field( wp_unslash( $_POST['dtsstop'] ) ) ) );
            }
        }

        $maxComments = 50;
        if ( defined( 'MAINWP_CHILD_NR_OF_COMMENTS' ) ) {
            $maxComments = MAINWP_CHILD_NR_OF_COMMENTS; // to compatible.
        }

        if ( isset( $_POST['maxRecords'] ) ) {
            $maxComments = ! empty( $_POST['maxRecords'] ) ? intval( $_POST['maxRecords'] ) : 0;
        }

        if ( 0 === $maxComments ) {
            $maxComments = 99999;
        }
        $status                     = isset( $_POST['status'] ) ? sanitize_text_field( wp_unslash( $_POST['status'] ) ) : '';
        $rslt                       = $this->get_recent_comments( explode( ',', $status ), $maxComments );
        $this->comments_and_clauses = '';
        // phpcs:enable
        MainWP_Helper::write( $rslt );
    }

    /**
     * Get recent comments.
     *
     * @param array $pAllowedStatuses An array containing allowed comment statuses.
     * @param int   $pCount Number of comments to return.
     *
     * @return array $allComments Array of all comments found.
     */
    public function get_recent_comments( $pAllowedStatuses, $pCount ) {
        if ( ! function_exists( '\get_comment_author_url' ) ) {
            include_once WPINC . '/comment-template.php'; // NOSONAR -- WP compatible.
        }
        $allComments = array();

        foreach ( $pAllowedStatuses as $status ) {
            $params = array( 'status' => $status );
            if ( 0 !== $pCount ) {
                $params['number'] = $pCount;
            }
            $comments = get_comments( $params );
            if ( is_array( $comments ) ) {
                foreach ( $comments as $comment ) {
                    $post                        = get_post( $comment->comment_post_ID );
                    $outComment                  = array();
                    $outComment['id']            = $comment->comment_ID;
                    $outComment['status']        = wp_get_comment_status( $comment->comment_ID );
                    $outComment['author']        = $comment->comment_author;
                    $outComment['author_url']    = get_comment_author_url( $comment->comment_ID );
                    $outComment['author_ip']     = get_comment_author_IP( $comment->comment_ID );
                    $outComment['author_email']  = apply_filters( 'comment_email', $comment->comment_author_email );
                    $outComment['postId']        = $comment->comment_post_ID;
                    $outComment['postName']      = $post->post_title;
                    $outComment['comment_count'] = $post->comment_count;
                    $outComment['content']       = $comment->comment_content;
                    $outComment['dts']           = strtotime( $comment->comment_date_gmt );
                    $allComments[]               = $outComment;
                }
            }
        }

        return $allComments;
    }
}