<?php

declare(strict_types=1);

namespace GerSync;

defined('ABSPATH') || exit;

/**
 * Прогресс пошагового импорта между запросами 1С.
 */
final class State
{
    private const OPTION = 'gersync_state';

    /** @param array<string, array{pos:int, classifier:bool, done:bool}> $files */
    private function __construct(private array $files)
    {
    }

    public static function load(): self
    {
        $data = get_option(self::OPTION, []);
        return new self(is_array($data) ? $data : []);
    }

    public static function reset(): void
    {
        delete_option(self::OPTION);
    }

    public function save(): void
    {
        update_option(self::OPTION, $this->files, false);
    }

    public function isDone(string $file): bool
    {
        return !empty($this->files[$file]['done']);
    }

    public function position(string $file): int
    {
        return (int) ($this->files[$file]['pos'] ?? 0);
    }

    public function classifierDone(string $file): bool
    {
        return !empty($this->files[$file]['classifier']);
    }

    public function setPosition(string $file, int $pos): void
    {
        $this->files[$file]['pos'] = $pos;
    }

    public function markClassifier(string $file): void
    {
        $this->files[$file]['classifier'] = true;
    }

    public function markDone(string $file): void
    {
        $this->files[$file]['done'] = true;
    }
}