<?php

declare(strict_types=1);

namespace Weerscherm\Tests;

use PHPUnit\Framework\TestCase;
use Weerscherm\StationMapper;

final class StationMapperTest extends TestCase
{
    /** @return array<string, mixed> */
    private function body(): array
    {
        $json = json_decode((string) file_get_contents(__DIR__ . '/fixtures/getstationsdata.json'), true);
        return $json['body'];
    }

    public function testStationMetadata(): void
    {
        $m = StationMapper::map($this->body(), null, []);

        self::assertSame('Europe/Berlin', $m['timezone']);
        self::assertSame(51.82, $m['lat']);
        self::assertSame(6.55, $m['lon']);
        self::assertSame('70:ee:50:00:00:01', $m['device_id']);
        self::assertSame(1789129812, $m['measured_at']);
    }

    public function testOutdoor(): void
    {
        $m = StationMapper::map($this->body(), null, []);

        self::assertSame([
            'temp' => 16.4,
            'trend' => 'down',
            'min' => 9.2,
            'min_at' => 1789099800,
            'max' => 19.8,
            'max_at' => 1789124700,
            'humidity' => 71.0,
        ], $m['outdoor']);
    }

    public function testIndoorDefaultOrderAndUnreachableModule(): void
    {
        $m = StationMapper::map($this->body(), null, []);

        self::assertCount(3, $m['indoor']);
        self::assertSame(['Woonkamer', 'Slaapkamer', 'Kantoor'], array_column($m['indoor'], 'name'));
        self::assertSame(['id' => '70:ee:50:00:00:01', 'name' => 'Woonkamer', 'temp' => 21.3, 'min' => 20.4, 'max' => 22.1, 'humidity' => 48.0, 'co2' => 612, 'reachable' => true], $m['indoor'][0]);
        self::assertSame(['id' => '03:00:00:00:00:03', 'name' => 'Kantoor', 'temp' => null, 'min' => null, 'max' => null, 'humidity' => null, 'co2' => null, 'reachable' => false], $m['indoor'][2]);
    }

    public function testIndoorConfigDeterminesOrderAndLabels(): void
    {
        $m = StationMapper::map($this->body(), null, [
            '03:00:00:00:00:03' => 'Studeerkamer',
            '70:ee:50:00:00:01' => 'Living',
        ]);

        self::assertSame(['Studeerkamer', 'Living', 'Slaapkamer'], array_column($m['indoor'], 'name'));
    }

    public function testRainModule(): void
    {
        $m = StationMapper::map($this->body(), null, []);

        self::assertSame('05:00:00:00:00:04', $m['rain_module_id']);
        self::assertSame(2.4, $m['sum_rain_24']);
    }

    public function testPressureFromBaseStation(): void
    {
        $m = StationMapper::map($this->body(), null, []);

        self::assertSame(['current' => 1014.2, 'trend' => 'up'], $m['pressure']);
    }

    public function testPressureNullWhenBaseStationUnreachable(): void
    {
        $body = $this->body();
        $body['devices'][0]['reachable'] = false;
        unset($body['devices'][0]['dashboard_data']);
        $m = StationMapper::map($body, null, []);

        self::assertSame(['current' => null, 'trend' => null], $m['pressure']);
        self::assertSame(1789129780, $m['measured_at'], 'valt terug op time_utc van de buitenmodule');
    }

    public function testWithoutRainModule(): void
    {
        $body = $this->body();
        $body['devices'][0]['modules'] = array_values(array_filter(
            $body['devices'][0]['modules'],
            fn(array $mod) => $mod['type'] !== 'NAModule3',
        ));
        $m = StationMapper::map($body, null, []);

        self::assertNull($m['rain_module_id']);
        self::assertNull($m['sum_rain_24']);
    }

    public function testUnreachableOutdoorModuleGivesNulls(): void
    {
        $body = $this->body();
        $body['devices'][0]['modules'][0]['reachable'] = false;
        unset($body['devices'][0]['modules'][0]['dashboard_data']);
        $m = StationMapper::map($body, null, []);

        self::assertSame(['temp' => null, 'trend' => null, 'min' => null, 'min_at' => null, 'max' => null, 'max_at' => null, 'humidity' => null], $m['outdoor']);
    }

    public function testUnknownDeviceIdFallsBackToFirstStation(): void
    {
        $m = StationMapper::map($this->body(), 'ff:ff:ff:ff:ff:ff', []);
        self::assertSame('70:ee:50:00:00:01', $m['device_id']);
    }

    public function testEmptyDevicesGivesNullsWithoutCrashing(): void
    {
        $m = StationMapper::map(['devices' => []], null, []);

        self::assertNull($m['device_id']);
        self::assertNull($m['timezone']);
        self::assertNull($m['measured_at']);
        self::assertSame([], $m['indoor']);
        self::assertNull($m['outdoor']['temp']);
        self::assertNull($m['rain_module_id']);
        self::assertSame(['current' => null, 'trend' => null], $m['pressure']);
    }
}