<?php

declare(strict_types=1);

namespace Belevo\EnelixEMS\Tests;

use Belevo\EnelixEMS\LadestationAdapter;
use Belevo\EnelixEMS\LadestationTransport;
use PHPUnit\Framework\TestCase;

final class LadestationAdapterTest extends TestCase
{
    /**
     * @dataProvider statusFaelle
     * @param array<string, string> $konfiguration
     * @param array{Rohstatus: int, Istleistung_W: float, Iststrom_A?: float, Phasenzahl?: int} $erwartet
     */
    public function testStatusaufrufUndDekodierungFuerAlleGeraete(
        int $geraetetyp,
        array $konfiguration,
        string $antwort,
        string $erwarteteUrl,
        array $erwartet
    ): void {
        $aufrufe = [];
        $transport = new LadestationTransport(static function (array $anfrage) use (
            &$aufrufe,
            $antwort
        ): string {
            $aufrufe[] = $anfrage;
            return $antwort;
        });

        $rohstatus = LadestationAdapter::dekodiereStatus(
            $geraetetyp,
            $transport->statusLesen($geraetetyp, $konfiguration)
        );

        self::assertSame($erwarteteUrl, $aufrufe[0]['URL']);
        self::assertSame('GET', $aufrufe[0]['Methode']);
        self::assertSame($erwartet, $rohstatus);
    }

    /** @return iterable<string, array<mixed>> */
    public function statusFaelle(): iterable
    {
        yield 'go-e alt' => [
            LadestationAdapter::GO_E_ALT,
            $this->lokaleKonfiguration(),
            $this->goEAntwort(2, 1100, [160, 158, 159]),
            'http://192.0.2.10/mqtt?payload=',
            [
                'Rohstatus' => 2,
                'Istleistung_W' => 11000.0,
                'Iststrom_A' => 16.0,
                'Phasenzahl' => 3,
            ],
        ];
        yield 'go-e Gemini' => [
            LadestationAdapter::GO_E_GEMINI,
            $this->lokaleKonfiguration(),
            $this->goEAntwort(2, 2300, [9.8, 0, 0]),
            'http://192.0.2.10/api/status',
            [
                'Rohstatus' => 2,
                'Istleistung_W' => 2300.0,
                'Iststrom_A' => 9.8,
                'Phasenzahl' => 1,
            ],
        ];
        yield 'Smart-me Pico' => [
            LadestationAdapter::SMART_ME_PICO,
            $this->picoKonfiguration(),
            json_encode([
                'State' => 2,
                'ActiveChargingPower' => 11.0,
                'MaxAllowedChargingCurrent' => 16,
            ], JSON_THROW_ON_ERROR),
            'https://api.smart-me.com/pico/charging/pico-id',
            ['Rohstatus' => 2, 'Istleistung_W' => 11000.0],
        ];
    }

    /**
     * @dataProvider steuerFaelle
     * @param array<string, string> $konfiguration
     * @param list<array{Methode: string, URL: string}> $erwarteteAufrufe
     */
    public function testSteueraufrufeWerdenUeberFakeTransportGeprueft(
        int $geraetetyp,
        array $konfiguration,
        int $strom,
        array $erwarteteAufrufe
    ): void {
        $aufrufe = [];
        $transport = new LadestationTransport(static function (array $anfrage) use (&$aufrufe): string {
            unset($anfrage['Benutzername'], $anfrage['Passwort']);
            $aufrufe[] = $anfrage;
            return '{}';
        });

        $transport->ladestromSetzen($geraetetyp, $konfiguration, $strom);

        self::assertSame($erwarteteAufrufe, $aufrufe);
    }

    /** @return iterable<string, array<mixed>> */
    public function steuerFaelle(): iterable
    {
        yield 'go-e alt laden' => [
            LadestationAdapter::GO_E_ALT,
            $this->lokaleKonfiguration(),
            16,
            [
                ['Methode' => 'GET', 'URL' => 'http://192.0.2.10/mqtt?payload=alw=1'],
                ['Methode' => 'GET', 'URL' => 'http://192.0.2.10/mqtt?payload=amp=16'],
            ],
        ];
        yield 'go-e Gemini stoppen' => [
            LadestationAdapter::GO_E_GEMINI,
            $this->lokaleKonfiguration(),
            0,
            [[
                'Methode' => 'GET',
                'URL' => 'http://192.0.2.10/api/set?frc=1&sua=false',
            ]],
        ];
        yield 'Smart-me Pico laden' => [
            LadestationAdapter::SMART_ME_PICO,
            $this->picoKonfiguration(),
            16,
            [[
                'Methode' => 'POST',
                'URL' => 'https://api.smart-me.com/pico/loadmanagementgroup/current/serial-1?current=16000',
            ]],
        ];
    }

    public function testPicoAnfragenVerwendenBasicAuth(): void
    {
        $anfrage = LadestationAdapter::statusAnfrage(
            LadestationAdapter::SMART_ME_PICO,
            $this->picoKonfiguration()
        );

        self::assertSame('api-user', $anfrage['Benutzername']);
        self::assertSame(hash('sha256', __FILE__), $anfrage['Passwort']);
    }

    /** @return array<string, string> */
    private function lokaleKonfiguration(): array
    {
        return [
            'Geraeteadresse' => '192.0.2.10',
            'GeraeteID' => '',
            'Seriennummer' => '',
            'Benutzername' => '',
            'Passwort' => '',
        ];
    }

    /** @return array<string, string> */
    private function picoKonfiguration(): array
    {
        return [
            'Geraeteadresse' => '',
            'GeraeteID' => 'pico-id',
            'Seriennummer' => 'serial-1',
            'Benutzername' => 'api-user',
            'Passwort' => hash('sha256', __FILE__),
        ];
    }

    /** @param list<int|float> $stroeme */
    private function goEAntwort(int $status, float $leistung, array $stroeme): string
    {
        $nrg = array_fill(0, 12, 0);
        foreach (array_values($stroeme) as $index => $strom) {
            $nrg[4 + $index] = $strom;
        }
        $nrg[11] = $leistung;

        return json_encode(['car' => $status, 'nrg' => $nrg], JSON_THROW_ON_ERROR);
    }
}