<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\Dictionary\Area;
use App\Models\Dictionary\District;
use App\Services\Export\ExportAreasService;
use App\Services\Import\ImportAreasService;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use Illuminate\View\View;

class AdminAreaController extends Controller
{
    protected string $id = 'id';
    protected array $header = [
        'id' => 'ID',
        'name' => 'Название',
        'district_name' => 'Округ',
    ];
    protected array $searchFields = ['name'];

    public function index(Request $request): View
    {
        $query = Area::with('district')->orderBy('name');

        // Фильтр по округу
        if ($request->has('district_id') && $request->district_id) {
            $query->where('district_id', $request->district_id);
        }

        $areas = $query->get()->map(function ($area) {
            return [
                'id' => $area->id,
                'name' => $area->name,
                'district_name' => $area->district?->shortname ?? '-',
            ];
        });

        $districts = District::orderBy('shortname')->pluck('shortname', 'id')->toArray();

        return view('admin.areas.index', [
            'active' => 'admin_areas',
            'id' => $this->id,
            'header' => $this->header,
            'areas' => $areas,
            'districts' => $districts,
            'selectedDistrict' => $request->district_id,
        ]);
    }

    public function show(int $areaId): View
    {
        $area = Area::withTrashed()->findOrFail($areaId);
        $districts = District::orderBy('shortname')->pluck('name', 'id')->toArray();

        return view('admin.areas.edit', [
            'active' => 'admin_areas',
            'area' => $area,
            'districts' => $districts,
        ]);
    }

    public function store(Request $request): RedirectResponse
    {
        $validated = $request->validate([
            'id' => ['nullable', 'integer'],
            'name' => ['required', 'string', 'max:255'],
            'district_id' => ['required', 'integer', 'exists:districts,id'],
        ]);

        if (!empty($validated['id'])) {
            $area = Area::withTrashed()->findOrFail($validated['id']);
            $area->update([
                'name' => $validated['name'],
                'district_id' => $validated['district_id'],
            ]);
        } else {
            Area::create([
                'name' => $validated['name'],
                'district_id' => $validated['district_id'],
            ]);
        }

        return redirect()->route('admin.area.index')->with('success', 'Район сохранён');
    }

    public function destroy(Area $area): RedirectResponse
    {
        $area->delete();

        return redirect()->route('admin.area.index')->with('success', 'Район удалён');
    }

    public function undelete(int $areaId): RedirectResponse
    {
        $area = Area::withTrashed()->findOrFail($areaId);
        $area->restore();

        return redirect()->route('admin.area.index')->with('success', 'Район восстановлен');
    }

    public function export(Request $request): RedirectResponse
    {
        $service = new ExportAreasService();
        $link = $service->handle($request->user()->id);

        return redirect()->away($link);
    }

    public function import(Request $request): RedirectResponse
    {
        $request->validate([
            'import_file' => ['required', 'file', 'mimes:xlsx,xls'],
        ]);

        $file = $request->file('import_file');
        $path = $file->store('import/areas', 'upload');
        $fullPath = Storage::disk('upload')->path($path);

        $service = new ImportAreasService($fullPath, $request->user()->id);
        $result = $service->handle();

        if ($result['success']) {
            return redirect()->route('admin.area.index')
                ->with('success', 'Импорт завершён успешно');
        }

        return redirect()->route('admin.area.index')
            ->with('error', 'Ошибка импорта: ' . ($result['error'] ?? 'неизвестная ошибка'));
    }
}