<?php

namespace App\Services\Vehicle;

use App\Models\Tenants\VehicleLog;
use App\Services\Service;
use Illuminate\Contracts\Pagination\LengthAwarePaginator;
use Illuminate\Support\Facades\DB;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

class VehicleLogService extends Service
{
    public function index(array $filters = []): LengthAwarePaginator
    {
        $query = VehicleLog::query()->with(['vehicle:id,plate_number,model']);

        if (! empty($filters['search'])) {
            $search = $filters['search'];
            $query->where(function ($q) use ($search) {
                $q->where('driver_name', 'like', "%{$search}%")
                    ->orWhere('departure_name', 'like', "%{$search}%")
                    ->orWhere('arrival_name', 'like', "%{$search}%");
            });
        }

        if (! empty($filters['vehicle_id'])) {
            $query->where('vehicle_id', $filters['vehicle_id']);
        }

        if (! empty($filters['year']) && ! empty($filters['month'])) {
            $query->whereYear('log_date', $filters['year'])
                ->whereMonth('log_date', $filters['month']);
        }

        if (! empty($filters['trip_type'])) {
            $query->where('trip_type', $filters['trip_type']);
        }

        $query->orderByDesc('log_date')->orderByDesc('id');

        return $query->paginate($filters['per_page'] ?? 20);
    }

    public function show(int $id): VehicleLog
    {
        $log = VehicleLog::with('vehicle:id,plate_number,model')->find($id);

        if (! $log) {
            throw new NotFoundHttpException('운행기록을 찾을 수 없습니다.');
        }

        return $log;
    }

    public function store(array $data): VehicleLog
    {
        return DB::transaction(function () use ($data) {
            $data['tenant_id'] = $this->tenantId();

            return VehicleLog::create($data);
        });
    }

    public function update(int $id, array $data): VehicleLog
    {
        return DB::transaction(function () use ($id, $data) {
            $log = VehicleLog::find($id);

            if (! $log) {
                throw new NotFoundHttpException('운행기록을 찾을 수 없습니다.');
            }

            $log->update($data);

            return $log->fresh(['vehicle:id,plate_number,model']);
        });
    }

    public function destroy(int $id): bool
    {
        return DB::transaction(function () use ($id) {
            $log = VehicleLog::find($id);

            if (! $log) {
                throw new NotFoundHttpException('운행기록을 찾을 수 없습니다.');
            }

            return $log->delete();
        });
    }

    /**
     * 월별 통계
     */
    public function summary(array $filters = []): array
    {
        $query = VehicleLog::query();

        if (! empty($filters['vehicle_id'])) {
            $query->where('vehicle_id', $filters['vehicle_id']);
        }

        if (! empty($filters['year']) && ! empty($filters['month'])) {
            $query->whereYear('log_date', $filters['year'])
                ->whereMonth('log_date', $filters['month']);
        }

        $totalDistance = (clone $query)->sum('distance_km');
        $totalCount = (clone $query)->count();

        $commuteToQuery = (clone $query)->whereIn('trip_type', ['commute_to', 'commute_round']);
        $commuteFromQuery = (clone $query)->whereIn('trip_type', ['commute_from', 'commute_round']);
        $businessQuery = (clone $query)->whereIn('trip_type', ['business', 'business_round']);
        $personalQuery = (clone $query)->whereIn('trip_type', ['personal', 'personal_round']);

        return [
            'total_distance' => (int) $totalDistance,
            'total_count' => $totalCount,
            'commute_to_distance' => (int) $commuteToQuery->sum('distance_km'),
            'commute_to_count' => $commuteToQuery->count(),
            'commute_from_distance' => (int) $commuteFromQuery->sum('distance_km'),
            'commute_from_count' => $commuteFromQuery->count(),
            'business_distance' => (int) $businessQuery->sum('distance_km'),
            'business_count' => $businessQuery->count(),
            'personal_distance' => (int) $personalQuery->sum('distance_km'),
            'personal_count' => $personalQuery->count(),
        ];
    }
}