<?php

namespace App\Http\Livewire\Traits;

use App\Models\AllegatiGalleryType;
use App\Models\ReportAllegatiGallery;
use Livewire\WithFileUploads;
use Illuminate\Support\Facades\Log;

trait HasAllegato
{
    use WithFileUploads;

    public $allegatoId = 0;
    public $allegatoType = 0;
    public $allegatoGallery = 0;
    public $allegatoName = '';
    public $allegatoVisible = false;
    public $allegatoFiles = '';
    public $allegatiFiles = [];
    public $allegatiImmagini;
    public $allegatiDocumenti;
    public $allegati = [];

    protected $imageExtensions = ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'svg', 'webp'];

    protected function getAllegatiRules()
    {
        return [
            'allegati.*' => 'file|max:2048',// 2MB max per file
        ];
    }

    public function updatedAllegati()
    {
        $this->resetErrorBag('allegati');

        Log::info('File upload started', [
            'files_count' => is_array($this->allegati) ? count($this->allegati) : 'No files',
        ]);

        try {
            $this->validate($this->getAllegatiRules(), [
                'allegati.*.file' => 'Il file deve essere valido',
                'allegati.*.max' => 'Il file non può superare 2MB',
            ]);

            if (!empty($this->allegati)) {
                foreach ($this->allegati as $index => $allegato) {
                    try {
                        $size = $allegato->getSize();
                        Log::info('Processing file', [
                            'index' => $index,
                            'original_name' => $allegato->getClientOriginalName(),
                            'size' => $size,
                            'size_mb' => round($size / 1024 / 1024, 2) . 'MB',
                        ]);

                        $name = $allegato->getClientOriginalName();
                        $allegato->storeAs('', $name, 'public');
                        $this->allegatiFiles[] = $name;

                        Log::info('File stored successfully', [
                            'name' => $name
                        ]);
                    } catch (\Exception $e) {
                        Log::error('File upload error', [
                            'index' => $index,
                            'error' => $e->getMessage(),
                            'trace' => $e->getTraceAsString()
                        ]);
                        session()->flash('error', 'Errore durante il caricamento del file: ' . $e->getMessage());
                    }
                }
                $this->emit('attachments', implode("|", $this->allegatiFiles));
                $this->allegati = [];

                Log::info('All files processed', [
                    'total_files' => count($this->allegatiFiles)
                ]);
            }
        } catch (\Exception $e) {
            Log::error('Validation error', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            session()->flash('error', 'Errore di validazione: ' . $e->getMessage());
        }
    }

    public function updatedAllegatoGallery()
    {
        $this->resetErrorBag('allegatoGallery');
    }

    public function updatedAllegatoName()
    {
        $this->resetErrorBag('allegatoName');
    }

    public function getAllegatoType($type)
    {
        if ($type > 0) {
            $ret = AllegatiGalleryType::findOrFail($type);
            return $ret->name;
        }
        return "";
    }

    public function addAllegato($type)
    {
        $this->resetAllegatoFields();
        $this->allegatoType = $type;
        $this->emit('attachments', "");
        $this->emit('open-allegati-modal');

        Log::info('Add allegato modal opened', [
            'type' => $type
        ]);
    }

    public function saveAllegato()
    {
        Log::info('Save allegato started', [
            'allegatoName' => $this->allegatoName,
            'allegatoGallery' => $this->allegatoGallery,
            'files_count' => count($this->allegatiFiles)
        ]);

        $this->validate([
            'allegatoName' => 'required',
            'allegatoGallery' => 'required',
        ], [
            'allegatoName.required' => 'Il nome è obbligatorio',
            'allegatoGallery.required' => 'La tipologia è obbligatoria',
        ]);

        if ($this->allegatoGallery == 1 && !empty($this->allegatiFiles)) {
            foreach ($this->allegatiFiles as $file) {
                $extension = pathinfo($file, PATHINFO_EXTENSION);
                if (!in_array(strtolower($extension), $this->imageExtensions)) {
                    Log::warning('Invalid file type', [
                        'file' => $file,
                        'extension' => $extension,
                        'allowed_extensions' => $this->imageExtensions
                    ]);
                    session()->flash('error', 'I File devono essere immagini per Tipologia: Foto sinistro');
                    return;
                }
            }
        }

        if (empty($this->allegatiFiles)) {
            $this->addError('allegati', 'È necessario caricare almeno un file');
            Log::warning('No files uploaded');
            return;
        }

        $files = implode("|", $this->allegatiFiles);

        try {
            if ($this->allegatoId > 0) {
                Log::info('Updating existing allegato', [
                    'id' => $this->allegatoId
                ]);

                ReportAllegatiGallery::where('id', $this->allegatoId)->update([
                    'file_type' => $this->allegatoType,
                    'gallery_type' => $this->allegatoGallery,
                    'name' => $this->allegatoName,
                    'is_visible' => $this->allegatoVisible,
                    'files' => $files,
                    'state' => 0
                ]);
            } else {
                Log::info('Creating new allegato');

                ReportAllegatiGallery::create([
                    'report_id' => $this->dataId,
                    'file_type' => $this->allegatoType,
                    'gallery_type' => $this->allegatoGallery,
                    'name' => $this->allegatoName,
                    'is_visible' => $this->allegatoVisible,
                    'files' => $files,
                    'state' => 0,
                    'created' => date("Y-m-d H:i:s"),
                    'created_by' => 0
                ]);
            }

            Log::info('Allegato saved successfully');
            session()->flash('success', 'Allegato salvato con successo');
            $this->resetAllegatoFields();
            $this->refreshAllegatiCollections();
            $this->emit('close-modal');
        } catch (\Exception $e) {
            Log::error('Save error', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            session()->flash('error', 'Errore durante il salvataggio: ' . $e->getMessage());
        }
    }

    private function resetAllegatoFields()
    {
        $this->allegatoId = 0;
        $this->allegatoGallery = 0;
        $this->allegatoName = '';
        $this->allegatoVisible = false;
        $this->allegatoFiles = '';
        $this->allegatiFiles = [];
        $this->allegatoType = 0;
        $this->allegati = [];
        $this->resetErrorBag();

        Log::info('Allegato fields reset');
    }

    private function refreshAllegatiCollections()
    {
        $this->allegatiImmagini = ReportAllegatiGallery::where('report_id', $this->dataId)
            ->where('file_type', 0)
            ->orderBy('name')
            ->get();

        $this->allegatiDocumenti = ReportAllegatiGallery::where('report_id', $this->dataId)
            ->where('file_type', 1)
            ->orderBy('name')
            ->get();

        Log::info('Allegati collections refreshed', [
            'immagini_count' => $this->allegatiImmagini->count(),
            'documenti_count' => $this->allegatiDocumenti->count()
        ]);
    }

    public function editAllegato($id)
    {
        $this->resetErrorBag();
        $this->emit('attachments', "");

        Log::info('Edit allegato started', [
            'id' => $id
        ]);

        $a = ReportAllegatiGallery::where('id', $id)->first();

        if ($a != null) {
            $this->allegatoId = $id;
            $this->allegatoType = $a->file_type;
            $this->allegatoGallery = $a->gallery_type;
            $this->allegatoName = $a->name;
            $this->allegatoVisible = $a->is_visible;
            $this->allegatoFiles = $a->files;
            $this->allegatiFiles = explode("|", $this->allegatoFiles);

            Log::info('Allegato loaded for editing', [
                'name' => $this->allegatoName,
                'files_count' => count($this->allegatiFiles)
            ]);

            $this->emit('attachments', $this->allegatoFiles);
            $this->emit('open-allegati-modal');
        } else {
            Log::warning('Allegato not found', [
                'id' => $id
            ]);
        }
    }

    public function removeAllegato($id)
    {
        try {
            Log::info('Remove allegato started', [
                'id' => $id
            ]);

            ReportAllegatiGallery::findOrFail($id)->delete();

            Log::info('Allegato removed successfully');
            session()->flash('success', 'Allegato eliminato con successo');
            $this->refreshAllegatiCollections();
        } catch (\Exception $e) {
            Log::error('Remove error', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            session()->flash('error', 'Errore durante l\'eliminazione: ' . $e->getMessage());
        }
    }

    public function removeFile($filename)
    {
        Log::info('Remove file started', [
            'filename' => $filename
        ]);

        $index = array_search($filename, $this->allegatiFiles);
        if ($index !== false) {
            unset($this->allegatiFiles[$index]);
            $this->allegatiFiles = array_values($this->allegatiFiles);

            $this->allegatoFiles = implode("|", $this->allegatiFiles);

            Log::info('File removed from list', [
                'remaining_files' => count($this->allegatiFiles)
            ]);

            $this->emit('attachments', $this->allegatoFiles);
        } else {
            Log::warning('File not found in list', [
                'filename' => $filename,
                'current_files' => $this->allegatiFiles
            ]);
        }
    }

    public function closeAllegatiModal()
    {
        Log::info('Closing allegati modal');
        $this->resetAllegatoFields();
        $this->emit('close-modal');
    }
}