<?php

namespace MintyPHP\Repository\Scheduler;

use MintyPHP\DB;
use MintyPHP\Domain\Taxonomy\SchedulerRuntimeResult;

class SchedulerRuntimeRepository implements SchedulerRuntimeRepositoryInterface
{
    public function touchHeartbeat(string $result, ?string $errorCode = null, ?string $heartbeatAtUtc = null): bool
    {
        $heartbeatAtUtc = trim((string) ($heartbeatAtUtc ?? ''));
        if ($heartbeatAtUtc === '') {
            $heartbeatAtUtc = gmdate('Y-m-d H:i:s');
        }

        $result = SchedulerRuntimeResult::normalizeOr($result, SchedulerRuntimeResult::Ok)->value;
        $errorCode = $this->nullableTrim($errorCode);

        $updated = DB::update(
            'insert into scheduler_runtime_status (id, last_heartbeat_at, last_result, last_error_code) ' .
            'values (1, ?, ?, ?) ' .
            'on duplicate key update ' .
            'last_heartbeat_at = values(last_heartbeat_at), ' .
            'last_result = values(last_result), ' .
            'last_error_code = values(last_error_code)',
            $heartbeatAtUtc,
            $result,
            $errorCode
        );

        return $updated !== false;
    }

    public function findStatus(): ?array
    {
        $row = DB::selectOne('select * from scheduler_runtime_status where id = 1 limit 1');
        if (!is_array($row)) {
            return null;
        }
        $item = $row['scheduler_runtime_status'] ?? $row;
        return is_array($item) ? $item : null;
    }

    private function nullableTrim(?string $value): ?string
    {
        $value = trim((string) $value);
        return $value !== '' ? $value : null;
    }
}
