<?php

namespace App\Http\Controllers;

use App\Http\Requests\CreateReclamationRequest;
use App\Http\Requests\StoreReclamationDetailsRequest;
use App\Http\Requests\StoreReclamationRequest;
use App\Http\Requests\StoreReclamationSparePartsRequest;
use App\Jobs\GenerateFilesPack;
use App\Jobs\GenerateReclamationPack;
use App\Models\File;
use App\Models\Order;
use App\Models\Reclamation;
use App\Models\ReclamationDetail;
use App\Models\ReclamationStatus;
use App\Models\ReclamationView;
use App\Models\Role;
use App\Models\User;
use App\Services\FileService;
use Illuminate\Http\Request;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Storage;

class ReclamationController extends Controller
{
    protected array $data = [
        'active' => 'reclamations',
        'title' => 'Рекламации',
        'id' => 'reclamations',
        'header' => [
            'id' => 'ID',
            'user_name' => 'Менеджер',
            'status_name' => 'Статус',
            'district_name' => 'Округ',
            'area_name' => 'Район',
            'object_address' => 'Адрес объекта',
            'create_date' => 'Дата создания',
            'finish_date' => 'Дата завершения',
            'start_work_date' => 'Дата начала работ',
            'work_days' => 'Срок работ, дней',
            'brigadier_name' => 'Бригадир',
            'reason' => 'Причина',
            'guarantee' => 'Гарантии',
            'whats_done' => 'Что сделано',
            'comment' => 'Комментарий',
        ],
        'searchFields' => [
            'reason',
            'guarantee',
            'whats_done',
            'comment',
        ],
        'ranges' => [],
    ];

    public function __construct()
    {
        $this->data['users'] = User::query()->whereIn('role', [Role::MANAGER, Role::ADMIN])->get()->pluck('name', 'id');
        $this->data['statuses'] = ReclamationStatus::query()->get()->pluck('name', 'id');
    }

    public function index(Request $request)
    {
        session(['gp_reclamations' => $request->all()]);
        $model = new ReclamationView();
        // fill filters
        $this->createFilters($model, 'user_name', 'status_name');
        $this->createDateFilters($model, 'create_date', 'finish_date');

        $q = $model::query();

        $this->acceptFilters($q, $request);
        $this->acceptSearch($q, $request);
        $this->setSortAndOrderBy($model, $request);

        $q->orderBy($this->data['sortBy'], $this->data['orderBy']);
        $this->data['reclamations'] = $q->paginate(session('per_page', config('pagination.per_page')))->withQueryString();

        return view('reclamations.index', $this->data);
    }

    public function create(CreateReclamationRequest $request, Order $order)
    {
        $reclamation = Reclamation::query()->create([
            'order_id' => $order->id,
            'user_id' => $request->user()->id,
            'status_id' => Reclamation::STATUS_NEW,
            'create_date' => Carbon::now(),
            'finish_date' => Carbon::now()->addDays(30),
        ]);
        $skus = $request->validated('skus');
        $reclamation->skus()->attach($skus);
        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => url()->previous()]);
    }

    public function show(Request $request, Reclamation $reclamation)
    {
        $this->data['brigadiers'] = User::query()->where('role', Role::BRIGADIER)->get()->pluck('name', 'id');
        $this->data['reclamation'] = $reclamation;
        $this->data['previous_url'] = $request->get('previous_url');
        return view('reclamations.edit', $this->data);
    }

    public function update(StoreReclamationRequest $request, Reclamation $reclamation)
    {
        $data = $request->validated();
        $reclamation->update($data);
        return redirect()->route('reclamations.show', $reclamation->id);
    }

    public function delete(Reclamation $reclamation)
    {
        $reclamation->delete();
        return redirect()->route('reclamations.index');
    }

    public function uploadPhotoBefore(Request $request, Reclamation $reclamation, FileService $fileService)
    {
        $data = $request->validate([
            'photo.*' => 'mimes:jpeg,jpg,png|max:8192',
        ]);
        $f = [];
        foreach ($data['photo'] as $photo) {
            $f[] = $fileService->saveUploadedFile('reclamations/' . $reclamation->id . '/photo_before', $photo);
        }
        $reclamation->photos_before()->syncWithoutDetaching($f);

        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')]);
    }

    public function uploadPhotoAfter(Request $request, Reclamation $reclamation, FileService $fileService)
    {
        $data = $request->validate([
            'photo.*' => 'mimes:jpeg,jpg,png|max:8192',
        ]);
        $f = [];
        foreach ($data['photo'] as $photo) {
            $f[] = $fileService->saveUploadedFile('reclamations/' . $reclamation->id . '/photo_after', $photo);
        }
        $reclamation->photos_after()->syncWithoutDetaching($f);

        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')]);
    }

    public function deletePhotoBefore(Request $request, Reclamation $reclamation, File $file, FileService $fileService)
    {
        $reclamation->photos_before()->detach($file);
        Storage::disk('public')->delete($file->path);
        $file->delete();
        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')]);
    }

    public function deletePhotoAfter(Request $request, Reclamation $reclamation, File $file, FileService $fileService)
    {
        $reclamation->photos_after()->detach($file);
        Storage::disk('public')->delete($file->path);
        $file->delete();
        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')]);
    }

    public function uploadDocument(Request $request, Reclamation $reclamation, FileService $fileService)
    {
        $data = $request->validate([
            'document.*' => 'file',
        ]);
        $f = [];
        $i = 0;
        foreach ($data['document'] as $document) {
            if($i++ >= 5) break;
            $f[] = $fileService->saveUploadedFile('reclamations/' . $reclamation->id . '/document', $document);
        }
        $reclamation->documents()->syncWithoutDetaching($f);

        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')]);
    }

    public function deleteDocument(Request $request, Reclamation $reclamation, File $file)
    {
        $reclamation->documents()->detach($file);
        Storage::disk('public')->delete($file->path);
        $file->delete();
        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')]);
    }

    public function uploadAct(Request $request, Reclamation $reclamation, FileService $fileService)
    {
        $data = $request->validate([
            'acts.*' => 'file',
        ]);
        $f = [];
        $i = 0;
        foreach ($data['acts'] as $document) {
            if($i++ >= 5) break;
            $f[] = $fileService->saveUploadedFile('reclamations/' . $reclamation->id . '/act', $document);
        }
        $reclamation->acts()->syncWithoutDetaching($f);

        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')]);
    }

    public function deleteAct(Request $request, Reclamation $reclamation, File $file)
    {
        $reclamation->acts()->detach($file);
        Storage::disk('public')->delete($file->path);
        $file->delete();
        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')]);
    }

    public function updateDetails(StoreReclamationDetailsRequest $request, Reclamation $reclamation)
    {
        $names = $request->validated('name');
        $quantity = $request->validated('quantity');
        $withDocuments = $request->validated('with_documents');

        $inventoryService = app(\App\Services\SparePartInventoryService::class);

        foreach ($names as $key => $name) {
            if (!$name) continue;

            if ((int)$quantity[$key] >= 1) {
                // Проверяем, является ли это запчастью
                $sparePart = \App\Models\SparePart::where('article', $name)->first();

                if ($sparePart) {
                    // Автоматическое списание
                    $withDocs = isset($withDocuments[$key]) && $withDocuments[$key];

                    $inventoryService->deductForReclamation(
                        $name,
                        (int)$quantity[$key],
                        $withDocs,
                        $reclamation->id
                    );

                    // Сохраняем в pivot
                    $reclamation->spareParts()->syncWithoutDetaching([
                        $sparePart->id => [
                            'quantity' => $quantity[$key],
                            'with_documents' => $withDocs,
                        ]
                    ]);
                } else {
                    // Обычная деталь
                    ReclamationDetail::query()->updateOrCreate(
                        ['reclamation_id' => $reclamation->id, 'name' => $name],
                        ['quantity' => $quantity[$key]]
                    );
                }
            } else {
                // Удаление
                ReclamationDetail::query()
                    ->where('reclamation_id', $reclamation->id)
                    ->where('name', $name)
                    ->delete();
            }
        }

        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')]);
    }

    public function updateSpareParts(StoreReclamationSparePartsRequest $request, Reclamation $reclamation)
    {
        $rows = $request->validated('rows') ?? [];

        $inventoryService = app(\App\Services\SparePartInventoryService::class);

        // Получаем текущие привязки для сравнения
        $currentSpareParts = $reclamation->spareParts->keyBy('id');

        // Собираем новые привязки
        $newSpareParts = [];

        foreach ($rows as $row) {
            $sparePartId = $row['spare_part_id'] ?? null;
            if (empty($sparePartId)) continue;

            $quantity = (int)($row['quantity'] ?? 0);
            if ($quantity < 1) continue;

            $withDocs = !empty($row['with_documents']) && $row['with_documents'] != '0';

            // Проверяем, изменилось ли количество
            $currentQty = $currentSpareParts->get($sparePartId)?->pivot->quantity ?? 0;
            $diff = $quantity - $currentQty;

            if ($diff > 0) {
                // Нужно списать дополнительное количество
                $sparePart = \App\Models\SparePart::find($sparePartId);
                if ($sparePart) {
                    $inventoryService->deductForReclamation(
                        $sparePart->article,
                        $diff,
                        $withDocs,
                        $reclamation->id
                    );
                }
            }

            $newSpareParts[$sparePartId] = [
                'quantity' => $quantity,
                'with_documents' => $withDocs,
            ];
        }

        // Синхронизируем (заменяем все старые привязки новыми)
        $reclamation->spareParts()->sync($newSpareParts);

        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')]);
    }

    public function generateReclamationPack(Request $request, Reclamation $reclamation)
    {
        GenerateReclamationPack::dispatch($reclamation, auth()->user()->id);
        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')])
            ->with(['success' => 'Задача генерации документов создана!']);
    }

    public function generatePhotosBeforePack(Request $request, Reclamation $reclamation)
    {
        GenerateFilesPack::dispatch($reclamation, $reclamation->photos_before, auth()->user()->id, 'Фото проблемы');
        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')])
            ->with(['success' => 'Задача архивации создана!']);
    }

    public function generatePhotosAfterPack(Request $request, Reclamation $reclamation)
    {
        GenerateFilesPack::dispatch($reclamation, $reclamation->photos_after, auth()->user()->id, 'Фото после');
        return redirect()->route('reclamations.show', ['reclamation' => $reclamation, 'previous_url' => $request->get('previous_url')])
            ->with(['success' => 'Задача архивации создана!']);    }

}