<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\Document;
use App\Http\Resources\Admin\DocumentResource;
use App\Http\Resources\Admin\DocumentEditFormResource;
use Illuminate\Http\Request;
use App\Enums\DocumentStatusEnum;
use App\Enums\DocumentPriorityEnum;
use Inertia\Inertia;
use Maatwebsite\Excel\Facades\Excel;
use App\Exports\DocumentExport;
use App\Http\Resources\Admin\PetResource;
use App\Models\Pet;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
use App\Http\Requests\Admin\DocumentRequest;
use Illuminate\Support\Facades\Auth;
use App\Services\FileStorageService;
use App\Enums\MediaDiskEnum;

class DocumentController extends Controller
{
    use AuthorizesRequests;

    protected FileStorageService $fileStorageService;

    public function __construct(FileStorageService $fileStorageService)
    {
        $this->fileStorageService = $fileStorageService;
    }

    public function index(Request $request)
    {
        $this->authorize('documents.index');

        $lists = Document::with(['pet', 'requester'])
            ->when(isset($request->search) , function ($query) use ($request){
                $query->where(function ($q) use ($request) {
                    $q->where('code', 'LIKE', "%{$request->search}%")
                        ->orWhere('id', $request->search)
                        ->orWhereHas('requester', function ($userQuery) use ($request) {
                            $userQuery->where('fullname', 'LIKE', "%{$request->search}%")
                            ->orWhere('username', 'LIKE', "%{$request->search}%")
                            ->orWhere('email', 'LIKE', "%{$request->search}%")
                            ->orWhere('phone', 'LIKE', "%{$request->search}%");
                        });
                });
           })
            ->when(isset($request->status), function ($query) use ($request) {
                $query->where('status' , DocumentStatusEnum::fromName($request->status)->value );
            })
            ->when(isset($request->priority), function ($query) use ($request) {
                $query->where('priority' , DocumentPriorityEnum::fromName($request->priority)->value);
            })
            ->when(isset($request->pet), function ($query) use ($request) {
                $query->where('pet_id' , $request->pet);
            })
           ->latest()
           ->paginate(20)
           ->withQueryString()
           ->onEachSide(1);

        $documents = DocumentResource::collection($lists);


        return Inertia::admin('Documents/index', [
            'documents' => $documents,
            'search' => $request->search,
            'status' => $request->status,
            'priority' => $request->priority,
            'pet' => $request->pet,
            'permissions_edit' => auth()->user()->can('documents.edit') ? false : true,
            'permissions_delete' => auth()->user()->can('documents.delete') ? false : true,
        ]);
    }

    public function create()
    {
        $this->authorize('documents.create');

        $pets = PetResource::collection(Pet::latest()->take(20)->get())->map(function($pet) {
            return [
                'label' => $pet->name,
                'value' => $pet->id
            ];
        });

        return Inertia::admin('Documents/create_and_edit', [
            'pets' => $pets,
        ]);
    }


    public function store(DocumentRequest $request)
    {
        $this->authorize('documents.create');

        $document = Document::create(
            [
                'status' => DocumentStatusEnum::fromName($request->status)->value,
                'priority' => DocumentPriorityEnum::fromName($request->priority)->value,
                'note' => $request->note,
                'modality' => $request->modality,
                'pet_id' => $request->pet_id,
                'requester_id' => Auth::id(),
                'submitted_at' => $request->submitted_at,
                'scan_date' => $request->scan_date,
                'processing_deadline' => $request->processing_deadline,
            ]
        );

        if ($request->has('primary_files')) {
            $primaryFileIds = $request->primary_files ?? [];
            if (!empty($primaryFileIds)) {
                $document->media()->attach($primaryFileIds, ['collection' => 'primary']);
            }
        }

        if ($request->has('history_files')) {
            $historyFileIds = $request->history_files ?? [];
            if (!empty($historyFileIds)) {
                $document->media()->attach($historyFileIds, ['collection' => 'history']);
            }
        }

        session()->flash('success', 'پرونده با موفقیت ثبت شد');
        return response(null , 200);

    }


    public function show(Document $document)
    {
        //
    }


    public function edit(Document $document)
    {
        $this->authorize('documents.edit');

        $document->load(['primaryFiles', 'historyFiles', 'requester']);

        $pets = PetResource::collection(Pet::latest()->take(20)->get())->map(function($pet) {
            return [
                'label' => $pet->name,
                'value' => $pet->id
            ];
        });

        return Inertia::admin('Documents/create_and_edit', [
            'document' => DocumentEditFormResource::make($document)->resolve(),
            'is_edit' => true,
            'pets' => $pets,
        ]);
    }


    public function update(DocumentRequest $request, Document $document)
    {
        $this->authorize('documents.edit');

        $document->update(
            [
            'status' => DocumentStatusEnum::fromName($request->status)->value,
            'priority' => DocumentPriorityEnum::fromName($request->priority)->value,
            'note' => $request->note,
            'modality' => $request->modality,
            'pet_id' => $request->pet_id,
            'requester_id' => Auth::id(),
            'submitted_at' => $request->submitted_at,
            'scan_date' => $request->scan_date,
            'processing_deadline' => $request->processing_deadline,
            ]
        );

        if ($request->has('primary_files')) {
            $primaryFileIds = $request->primary_files ?? [];
            $document->media()->wherePivot('collection', 'primary')->detach();
            if (!empty($primaryFileIds)) {
                $document->media()->attach($primaryFileIds, ['collection' => 'primary']);
            }
        }

        if ($request->has('history_files')) {
            $historyFileIds = $request->history_files ?? [];
            $document->media()->wherePivot('collection', 'history')->detach();
            if (!empty($historyFileIds)) {
                $document->media()->attach($historyFileIds, ['collection' => 'history']);
            }
        }

        session()->flash('success', 'پرونده با موفقیت بروزرسانی شد');
        return response(null , 200);

    }


    public function destroy(Document $document)
    {
        $this->authorize('documents.delete');

        $document->delete();
        session()->flash('success', 'مدرک مورد نظر با موفقیت حذف شد.');
        return response(null , 200);
    }

    public function exportData(Request $request)
    {
        $filters = $request->only(['status', 'priority', 'pet' , 'search']);
        return Excel::download(new DocumentExport($filters), 'documents.xlsx');
    }

    public function uploadFile(Request $request)
    {
        $this->authorize('documents.create');

        $request->validate([
            'file' => 'required|file|max:20480',
        ]);

        $file = $request->file('file');
        $medium = $this->fileStorageService->storeFile($file, MediaDiskEnum::Private->value, 'documents');

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

    public function getOptions(Request $request)
    {
        $this->authorize('documents.index');


        $lists = Document::with(['pet', 'requester'])
            ->when(isset($request->search) && !empty($request->search), function ($query) use ($request){
                $query->where(function ($q) use ($request) {
                    $q->where('code', 'LIKE', "%{$request->search}%")
                        ->orWhere('id', $request->search)
                        ->orWhereHas('requester', function ($userQuery) use ($request) {
                            $userQuery->where('fullname', 'LIKE', "%{$request->search}%")
                            ->orWhere('username', 'LIKE', "%{$request->search}%")
                            ->orWhere('email', 'LIKE', "%{$request->search}%")
                            ->orWhere('phone', 'LIKE', "%{$request->search}%");
                        });
                });
           })
           ->latest()
           ->take(20)
           ->get(['id', 'code', 'modality']);

        $options = $lists->map(function ($document) {
            return [
                'label' => "پرونده {$document->code} - {$document->modality}",
                'value' => $document->id
            ];
        });
        return response()->json([
            'success' => true,
            'data' => $options
        ]);
    }
}