<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\WeatherReport;
use Illuminate\Http\JsonResponse;

class WeatherController extends Controller
{
    public function index(string $period = 'now'): JsonResponse
    {
        $period = in_array($period, ['now', 'daily', 'weekly']) ? $period : 'now';

        return match ($period) {
            'now' => $this->getCurrentConditions(),
            'daily' => $this->getDailyForecast(),
            'weekly' => $this->getWeeklyForecast(),
        };
    }

    private function getCurrentConditions(): JsonResponse
    {
        $latestHourly = WeatherReport::query()
            ->where('type', 'hourly')
            ->with('periods')
            ->orderByDesc('reported_at')
            ->first();

        $currentPeriod = $latestHourly?->periods->first();

        if (! $currentPeriod) {
            return response()->json(['error' => 'No current conditions available'], 404);
        }

        return response()->json([
            'period' => 'now',
            'reportedAt' => $latestHourly->reported_at->toIso8601String(),
            'location' => [
                'latitude' => $latestHourly->latitude,
                'longitude' => $latestHourly->longitude,
            ],
            'conditions' => [
                'temperature' => $currentPeriod->temperature,
                'temperatureUnit' => $currentPeriod->temperature_unit,
                'shortForecast' => $currentPeriod->short_forecast,
                'detailedForecast' => $currentPeriod->detailed_forecast,
                'windSpeed' => $currentPeriod->wind_speed,
                'windDirection' => $currentPeriod->wind_direction,
                'humidity' => $currentPeriod->relative_humidity,
                'dewpointCelsius' => $currentPeriod->dewpoint_celsius,
                'precipitationProbability' => $currentPeriod->precipitation_probability,
                'isDaytime' => $currentPeriod->is_daytime,
                'startTime' => $currentPeriod->start_time->toIso8601String(),
                'endTime' => $currentPeriod->end_time->toIso8601String(),
            ],
        ]);
    }

    private function getDailyForecast(): JsonResponse
    {
        $latestHourly = WeatherReport::query()
            ->where('type', 'hourly')
            ->with('periods')
            ->orderByDesc('reported_at')
            ->first();

        if (! $latestHourly || $latestHourly->periods->isEmpty()) {
            return response()->json(['error' => 'No daily forecast available'], 404);
        }

        $periods = $latestHourly->periods->map(fn ($period) => [
            'periodNumber' => $period->period_number,
            'startTime' => $period->start_time->toIso8601String(),
            'endTime' => $period->end_time->toIso8601String(),
            'isDaytime' => $period->is_daytime,
            'temperature' => $period->temperature,
            'temperatureUnit' => $period->temperature_unit,
            'shortForecast' => $period->short_forecast,
            'windSpeed' => $period->wind_speed,
            'windDirection' => $period->wind_direction,
            'humidity' => $period->relative_humidity,
            'precipitationProbability' => $period->precipitation_probability,
        ]);

        return response()->json([
            'period' => 'daily',
            'reportedAt' => $latestHourly->reported_at->toIso8601String(),
            'location' => [
                'latitude' => $latestHourly->latitude,
                'longitude' => $latestHourly->longitude,
            ],
            'periods' => $periods,
        ]);
    }

    private function getWeeklyForecast(): JsonResponse
    {
        $latestWeekly = WeatherReport::query()
            ->where('type', 'weekly')
            ->with('periods')
            ->orderByDesc('reported_at')
            ->first();

        if (! $latestWeekly || $latestWeekly->periods->isEmpty()) {
            return response()->json(['error' => 'No weekly forecast available'], 404);
        }

        $periods = $latestWeekly->periods->map(fn ($period) => [
            'periodNumber' => $period->period_number,
            'name' => $period->name,
            'startTime' => $period->start_time->toIso8601String(),
            'endTime' => $period->end_time->toIso8601String(),
            'isDaytime' => $period->is_daytime,
            'temperature' => $period->temperature,
            'temperatureUnit' => $period->temperature_unit,
            'shortForecast' => $period->short_forecast,
            'detailedForecast' => $period->detailed_forecast,
            'windSpeed' => $period->wind_speed,
            'windDirection' => $period->wind_direction,
            'precipitationProbability' => $period->precipitation_probability,
        ]);

        return response()->json([
            'period' => 'weekly',
            'reportedAt' => $latestWeekly->reported_at->toIso8601String(),
            'location' => [
                'latitude' => $latestWeekly->latitude,
                'longitude' => $latestWeekly->longitude,
            ],
            'periods' => $periods,
        ]);
    }
}