<?php declare(strict_types=1);

namespace AeonDumpManager\Service;

use Doctrine\DBAL\Connection;
use Shopware\Core\Framework\Uuid\Uuid;

/**
 * Owns the aeon_dump_manager_job table. Shopware core has no generic
 * async-job-status framework to hook into (confirmed against core's own
 * Import/Export source) — this mirrors that pattern with a small dedicated table.
 */
class DumpJobStatusService
{
    public function __construct(private readonly Connection $connection)
    {
    }

    public function createPending(): string
    {
        $id = Uuid::randomBytes();

        $this->connection->insert('aeon_dump_manager_job', [
            'id' => $id,
            'status' => 'pending',
            'created_at' => (new \DateTimeImmutable())->format('Y-m-d H:i:s.v'),
        ]);

        return Uuid::fromBytesToHex($id);
    }

    public function markRunning(string $jobId): void
    {
        $this->update($jobId, ['status' => 'running']);
    }

    public function updateProgress(string $jobId, int $percent): void
    {
        $this->update($jobId, ['percent' => min(99, max(0, $percent))]);
    }

    public function markDone(string $jobId, string $filename): void
    {
        $this->update($jobId, ['status' => 'done', 'percent' => 100, 'filename' => $filename]);
    }

    public function markFailed(string $jobId, string $errorMessage): void
    {
        $this->update($jobId, ['status' => 'failed', 'error_message' => $errorMessage]);
    }

    /**
     * @return array{id: string, status: string, percent: ?int, filename: ?string, errorMessage: ?string}|null
     */
    public function find(string $jobId): ?array
    {
        $row = $this->connection->fetchAssociative(
            'SELECT LOWER(HEX(id)) AS id, status, percent, filename, error_message FROM aeon_dump_manager_job WHERE id = :id',
            ['id' => Uuid::fromHexToBytes($jobId)]
        );

        if ($row === false) {
            return null;
        }

        return [
            'id' => $row['id'],
            'status' => $row['status'],
            'percent' => $row['percent'] !== null ? (int) $row['percent'] : null,
            'filename' => $row['filename'],
            'errorMessage' => $row['error_message'],
        ];
    }

    public function purgeOlderThan(\DateTimeImmutable $threshold): void
    {
        $this->connection->executeStatement(
            'DELETE FROM aeon_dump_manager_job WHERE created_at < :threshold',
            ['threshold' => $threshold->format('Y-m-d H:i:s.v')]
        );
    }

    private function update(string $jobId, array $data): void
    {
        $data['updated_at'] = (new \DateTimeImmutable())->format('Y-m-d H:i:s.v');

        $this->connection->update('aeon_dump_manager_job', $data, ['id' => Uuid::fromHexToBytes($jobId)]);
    }
}