<?php

namespace WPDeveloper\BetterDocs\Utils;

use WP_Error;

class Database {
    /**
     * Cache DB Data
     * @var array
     */
    private $cache = [];

    /**
     * Retrieves theme modification value for the active theme.
     *
     * @since 2.5.0
     *
     * @param string $key
     * @param mixed   $default
     *
     * @return mixed
     */
    public function get_theme_mod( $key, $default = false ) {
        return get_theme_mod( $key, $default );
    }

    public function get( $key, $default = false ) {
        if ( empty( $key ) ) {
            return new WP_Error( 'invalid_key', __( 'Key cannot be empty.', 'betterdocs' ), ['status' => 404] );
        }

        if( ! isset( $this->cache[ $key ] ) ) {
            $this->cache[ $key ] = get_option( $key, $default );
        }

        return $this->cache[ $key ];
    }

    /**
     * Summary of save
     * @param mixed $key
     * @param mixed $value
     * @return bool
     */
    public function save( $key, $value ) {
        $_updated = update_option( $key, $value, 'no' );

        if( $_updated ) {
            $this->cache[ $key ] = $value;
        }

        return $_updated;
    }

    /**
     * Summary of get_cache
     * @param string|int $key
     * @param bool $force
     * @param string $group
     * @return bool|mixed
     */
    public function get_cache( $key, $force = false, $group = 'betterdocs' ) {
        return wp_cache_get( $key, $group, $force );
    }

    /**
     * Set cache
     *
     * @param string $key
     * @param mixed $value
     * @param int $expire
     * @param string $group
     * @return bool
     */
    public function set_cache( $key, $value, $expire = 2, $group = 'betterdocs' ) {
        $expire = $expire * DAY_IN_SECONDS;
        return wp_cache_set( $key, $value, $group, $expire );
    }

    public function flush_cache( $group = 'betterdocs' ){
        if( function_exists('wp_cache_flush_group') ) {
            wp_cache_flush_group( $group );
        } else {
            // @todo need to do by cache_key
        }
    }

    public function set_transient( $transient, $value, $expiration = null ) {
        $expiration = $expiration == null ? MINUTE_IN_SECONDS : $expiration;
        return set_transient( $transient, $value, $expiration );
    }

    public function get_transient( $transient ) {
        return get_transient( $transient );
    }

    public function delete_transient( $transient ) {
        return delete_transient( $transient );
    }
}