<?php

declare(strict_types=1);

if (! class_exists('wpdb')) {
    /**
     * Minimal wpdb for unit tests. prepare()/esc_like() behave like the real ones
     * closely enough for assertions on the generated SQL; query methods are meant
     * to be mocked via Mockery::mock(wpdb::class)->makePartial().
     */
    class wpdb
    {
        public $prefix = 'wp_';
        public $posts = 'wp_posts';
        public $postmeta = 'wp_postmeta';
        public $usermeta = 'wp_usermeta';
        public $options = 'wp_options';
        public $insert_id = 0;
        public $last_error = '';

        public function prepare($query, ...$args)
        {
            if (count($args) === 1 && is_array($args[0])) {
                $args = $args[0];
            }
            // Quotes string placeholders but does not escape, so tests can assert on raw values.
            $query = str_replace("'%s'", '%s', $query);
            $query = str_replace('%s', "'%s'", $query);

            return vsprintf($query, $args);
        }

        public function esc_like($text)
        {
            return addcslashes($text, '_%\\');
        }

        public function get_charset_collate()
        {
            return 'DEFAULT CHARACTER SET utf8mb4';
        }

        public function insert($table, $data, $format = null)
        {
            return 1;
        }

        public function query($query)
        {
            return 0;
        }

        public function get_col($query = null, $x = 0)
        {
            return [];
        }

        public function get_var($query = null, $x = 0, $y = 0)
        {
            return null;
        }

        public function get_results($query = null, $output = 'OBJECT')
        {
            return [];
        }
    }
}