<?php

namespace AIBP\Log;

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

class ActivityLog {

    const POST_TYPE = 'aibp_log';

    public static function init(): void {
        add_action( 'init', [ __CLASS__, 'register_post_type' ] );
    }

    public static function register_post_type(): void {
        register_post_type( self::POST_TYPE, [
            'labels'       => [
                'name'          => __( 'Activity Log', 'ai-bulk-post' ),
                'singular_name' => __( 'Log Entry', 'ai-bulk-post' ),
            ],
            'public'       => false,
            'show_ui'      => false,
            'supports'     => [],
            'map_meta_cap' => true,
        ] );
    }

    public static function log( int $agent_id, string $level, string $message, int $post_id = 0 ): void {
        wp_insert_post( [
            'post_type'    => self::POST_TYPE,
            'post_status'  => 'publish',
            'post_title'   => wp_strip_all_tags( $message ),
            'meta_input'   => [
                'aibp_log_agent_id' => $agent_id,
                'aibp_log_level'    => $level,
                'aibp_log_post_id'  => $post_id,
                'aibp_log_time'     => gmdate( 'Y-m-d H:i:s' ),
            ],
        ] );
    }

    public static function get_logs( int $agent_id = 0, int $limit = 50, int $offset = 0 ): array {
        $args = [
            'post_type'      => self::POST_TYPE,
            'posts_per_page' => $limit,
            'offset'         => $offset,
            'orderby'        => 'date',
            'order'          => 'DESC',
        ];

        if ( $agent_id > 0 ) {
            $args['meta_query'] = [
                [
                    'key'   => 'aibp_log_agent_id',
                    'value' => $agent_id,
                    'type'  => 'NUMERIC',
                ],
            ];
        }

        $query  = new \WP_Query( $args );
        $results = [];

        foreach ( $query->posts as $post ) {
            $results[] = [
                'id'        => $post->ID,
                'agent_id'  => (int) get_post_meta( $post->ID, 'aibp_log_agent_id', true ),
                'level'     => get_post_meta( $post->ID, 'aibp_log_level', true ),
                'message'   => $post->post_title,
                'post_id'   => (int) get_post_meta( $post->ID, 'aibp_log_post_id', true ),
                'time'      => get_post_meta( $post->ID, 'aibp_log_time', true ),
            ];
        }

        wp_reset_postdata();
        return $results;
    }

    public static function delete_old_logs( int $retention_days = 90 ): void {
        global $wpdb;

        $cutoff = gmdate( 'Y-m-d H:i:s', strtotime( '-' . $retention_days . ' days' ) );

        // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
        $wpdb->query( $wpdb->prepare(
            "DELETE FROM {$wpdb->posts} WHERE post_type = %s AND post_date < %s",
            self::POST_TYPE,
            $cutoff
        ) );
    }
}