<?php

namespace App\Domain\Reports\ValueObjects;

final class MetrikaConfig
{
    public const BEDS = 1;

    public const RECIPIENT = 3;

    public const PLAN = 4;

    public const OUTCOME = 7;

    public const CURRENT = 8;

    public const DECEASED = 9;

    public const EMERGENCY_SURGERY = 10;

    public const PLAN_SURGERY = 11;

    public const EMERGENCY = 12;

    public const TRANSFERRED = 13;

    public const OBSERVATION = 14;

    public const DISCHARGED = 15;

    public const UNWANTED_EVENTS = 16;

    public const STAFF_COUNT = 17;

    public const AVERAGE_BED_DAYS = 18;

    public const PREOPERATIVE_AVERAGE_DAYS = 21;

    public const DEPARTMENT_LOADED = 22;

    public const TOTAL_BED_DAYS = 25;

    public const TOTAL_PREOPERATIVE_DAYS = 26;

    public const PREOPERATIVE_PATIENT_COUNT = 27;

    public static function payloadKey(int $metricId): string
    {
        return 'metrika_item_'.$metricId;
    }

    /**
     * @param  array<int|string, int|float|string|null>  $metrics
     * @return array<int, int|float|string|null>
     */
    public static function normalizeMetrics(array $metrics): array
    {
        $normalized = [];

        foreach ($metrics as $key => $value) {
            $metricId = self::extractMetricId($key);

            if ($metricId === null) {
                continue;
            }

            $normalized[$metricId] = $value;
        }

        ksort($normalized);

        return $normalized;
    }

    /**
     * @param  array<int, int|float|string|null>  $metrics
     * @return array<string, int|float|string|null>
     */
    public static function toPayloadMetrics(array $metrics): array
    {
        $payload = [];

        foreach (self::normalizeMetrics($metrics) as $metricId => $value) {
            $payload[self::payloadKey($metricId)] = $value;
        }

        return $payload;
    }

    public static function extractMetricId(int|string $key): ?int
    {
        if (is_int($key) || ctype_digit((string) $key)) {
            return (int) $key;
        }

        if (preg_match('/^metrika_item_(\d+)$/', (string) $key, $matches) !== 1) {
            return null;
        }

        return (int) $matches[1];
    }
}