<?php

class ChargingProfileBuilder
{
    public function build(array $setpoint, string $version): array
    {
        $currentA = max(0.0, (float)($setpoint['effectiveCurrentA'] ?? 0));
        $validTo = gmdate('Y-m-d\TH:i:s\Z', time() + 120);

        if ($version === '1.6') {
            return [
                'connectorId' => (int)($setpoint['connectorId'] ?? 1),
                'csChargingProfiles' => [
                    'chargingProfileId' => (int)(time() % 100000),
                    'stackLevel' => 0,
                    'chargingProfilePurpose' => 'TxDefaultProfile',
                    'chargingProfileKind' => 'Absolute',
                    'validTo' => $validTo,
                    'chargingSchedule' => [
                        'chargingRateUnit' => 'A',
                        'chargingSchedulePeriod' => [
                            ['startPeriod' => 0, 'limit' => $currentA]
                        ]
                    ]
                ]
            ];
        }

        return [
            'evseId' => (int)($setpoint['evseId'] ?? 1),
            'chargingProfile' => [
                'id' => (int)(time() % 100000),
                'stackLevel' => 0,
                'chargingProfilePurpose' => 'TxDefaultProfile',
                'chargingProfileKind' => 'Absolute',
                'validTo' => $validTo,
                'chargingSchedule' => [
                    [
                        'id' => 1,
                        'chargingRateUnit' => 'A',
                        'chargingSchedulePeriod' => [
                            ['startPeriod' => 0, 'limit' => $currentA]
                        ]
                    ]
                ]
            ]
        ];
    }
}

?>