<?php

declare(strict_types=1);

namespace ItalyStrap\Migrations;

class SettingsMigration
{
    private array $data = [];
    private array $pattern;

    public function __construct(array $pattern = [], array $data = [])
    {
        $this->data = $data;
        $this->pattern = $pattern;
    }

    /**
     * Puts an option to theme_mod.
     *
     * @param   array $pattern The pattern conversion.
     * @param   array $data The array with options to convert.
     *
     * @example $pattern = array( 'old_option_key'  => 'new_theme_mod_key', );
     */
    public function dataToThemeMod(array $pattern, array $data)
    {

        foreach ($pattern as $old_key => $new_key) {
            if (get_theme_mod($new_key)) {
                continue;
            }

            if (! isset($data[ $old_key ])) {
                continue;
            }

            if (preg_match('#png|jpg|gif#is', $data[ $old_key ])) {
                set_theme_mod($new_key, $this->getImageIdFromUrl($data[ $old_key ]));
                continue;
            }

            set_theme_mod($new_key, $data[ $old_key ]);
        }
    }

    /**
     * Puts an option to option.
     *
     * @param   array $pattern The pattern conversion.
     * @param   array $data The array with options to convert.
     *
     * @example $pattern = array( 'old_option_key'  => 'new_theme_mod_key', );
     */
    public function dataToOption(array $pattern, array $data)
    {

        foreach ($pattern as $old_key => $new_key) {
            if (get_option($new_key)) {
                continue;
            }

            if (! isset($data[ $old_key ])) {
                continue;
            }

            if (preg_match('#png|jpg|gif#is', $data[ $old_key ])) {
                update_option($new_key, $this->getImageIdFromUrl($data[ $old_key ]));
                continue;
            }

            update_option($new_key, $data[ $old_key ]);
        }
    }

    /**
     * Puts an option to options.
     *
     * @param   array  $pattern     The pattern conversion.
     * @param   array  $data        The array with options to convert.
     * @param   array  $options     The options in an array.
     * @param   string $option_name The name of the option to get.
     *
     * @example $pattern = array( 'old_option_key'  => 'new_theme_mod_key', );
     */
    public function dataToOptions(array $pattern, array $data, $options, $option_name)
    {

        if (! is_array($options)) {
            $options = [];
        }

        foreach ($pattern as $old_key => $new_key) {
            $options[ $new_key ] = null;

            if (! empty($options[ $new_key ])) {
                continue;
            }

            if (! isset($data[ $old_key ])) {
                continue;
            }

            if (preg_match('#png|jpg|gif#is', $data[ $old_key ])) {
                $options[ $new_key ] = $this->getImageIdFromUrl($data[ $old_key ]);
                update_option($option_name, $options);
                continue;
            }

            $options[ $new_key ] = $data[ $old_key ];
            update_option($option_name, $options);
        }
    }

    /**
     * Retrieves the attachment ID from the file URL
     *
     * @link https://pippinsplugins.com/retrieve-attachment-id-from-image-url/
     *
     * @param string $image_url The src of the image.
     *
     * @return int               Return the ID of the image
     */
    private function getImageIdFromUrl(string $image_url): int
    {

        return \ItalyStrap\Core\get_image_id_from_url($image_url);
    }
}