<?php

namespace App\Http\Controllers\Web;

use App\Http\Controllers\Controller;
use App\Http\Resources\Mis\FormattedPatientResource;
use App\Models\MetrikaGroup;
use App\Models\MisLpuDoctor;
use App\Models\Report;
use App\Models\UnwantedEvent;
use App\Services\DateRangeService;
use App\Services\ReportService;
use Illuminate\Http\Request;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Auth;
use Inertia\Inertia;

class ReportController extends Controller
{
    public function __construct(
        protected ReportService $reportService,
        protected DateRangeService $dateRangeService
    ) {}

    public function index(Request $request)
    {
        $user = Auth::user();
        $department = $user->department;

        $dateRange = $this->dateRangeService->getDateRangeFromRequest($request, $user);

        // Получаем статистику
        $statistics = $this->reportService->getReportStatistics($user, $dateRange);

        // Получаем метрики
        $metrikaGroup = MetrikaGroup::whereMetrikaGroupId(2)->first();
        $metrikaItems = $metrikaGroup->metrikaItems;

        // Получаем информацию о текущем отчете
        $reportInfo = $this->reportService->getCurrentReportInfo($user, $dateRange);

        return Inertia::render('Report/Index', [
            'department' => [
                'beds' => $department->beds,
                'percentLoadedBeds' => $this->calculateBedOccupancy($department, $user),
                ...$statistics,
            ],
            'dates' => [
                'startAt' => $dateRange->startTimestamp(),
                'endAt' => $dateRange->endTimestamp()
            ],
            'report' => $reportInfo,
            'metrikaItems' => $metrikaItems,
            'userId' => $reportInfo['userId'],
            'userName' => $reportInfo['userName']
        ]);
    }

    public function store(Request $request)
    {
        $validated = $request->validate([
            'metrics' => 'required|array',
            'observationPatients' => 'nullable|array',
            'departmentId' => 'required|integer',
            'unwantedEvents' => 'nullable|array',
            'dates' => 'required|array',
            'userId' => 'required|integer',
            'reportId' => 'nullable|integer'
        ]);

        $report = $this->reportService->storeReport($validated, Auth::user(), false);

        return redirect()->route('start');
    }

    public function getPatients(Request $request)
    {
        $user = Auth::user();

        $validated = $request->validate([
            'status' => 'required|string',
            'startAt' => 'nullable',
            'endAt' => 'nullable',
        ]);

        $dateRange = $this->dateRangeService->getDateRangeFromRequest($request, $user);

        $patients = $this->reportService->getPatientsByStatus(
            Auth::user(),
            $validated['status'],
            $dateRange
        );

        return response()->json(FormattedPatientResource::collection($patients));
    }

    public function getPatientsCount(Request $request)
    {
        $user = Auth::user();

        $validated = $request->validate([
            'status' => 'required|string',
            'startAt' => 'nullable',
            'endAt' => 'nullable',
        ]);

        $dateRange = $this->dateRangeService->getDateRangeFromRequest($request, $user);

        $count = $this->reportService->getPatientsCountByStatus(
            Auth::user(),
            $validated['status'],
            $dateRange,
        );

        return response()->json($count);
    }

    public function removeObservation(Request $request)
    {
        $validated = $request->validate(['id' => 'required|integer']);

        $this->reportService->removeObservationPatient($validated['id']);

        return response()->json(['message' => 'Удалено'], 200);
    }

    public function removeUnwantedEvent(UnwantedEvent $unwantedEvent)
    {
        $unwantedEvent->delete();
        return response()->json(['message' => 'Удалено'], 200);
    }

    public function getDepartmentUsers()
    {
        $users = MisLpuDoctor::select(['LPUDoctorID', 'FAM_V', 'IM_V', 'OT_V'])
            ->active()
            ->inMyDepartment()
            ->get();

        return response()->json($users, 200);
    }

    /**
     * Рассчитать загруженность коек
     */
    private function calculateBedOccupancy($department, $user): int
    {
        $beds = (int)$department->metrikaDefault()->where('rf_metrika_item_id', 1)->first()->value;
        $occupiedBeds = optional(Report::where('rf_department_id', $user->rf_department_id)
            ->join('metrika_results', 'reports.report_id', '=', 'metrika_results.rf_report_id')
            ->where('metrika_results.rf_metrika_item_id', 8)
            ->orderBy('sent_at', 'desc')
            ->first())->value ?? 0;

        return $beds > 0 ? round(intval($occupiedBeds) * 100 / $beds) : 0;
    }
}