<?php

namespace App\Livewire;

use Livewire\Component;
use Livewire\WithFileUploads;
use App\Models\Project;
use App\Models\Phase;
use App\Models\Layer;
use App\Models\Feature;
use App\Services\SpatialFileConverter;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Storage;

class LayerUpload extends Component
{
    use WithFileUploads;

    public $projectId;
    public $phaseId;
    public $uploadFile = null;
    public $layerName = '';
    public $layerColor = '#3b82f6';

    protected $rules = [
        'uploadFile' => 'required|file|max:51200',
        'layerName' => 'required|string|max:255',
        'layerColor' => 'nullable|string|size:7',
    ];

    public function mount($projectId = null, $phaseId = null)
    {
        $this->projectId = $projectId;
        $this->phaseId = $phaseId;
    }

    public function upload()
    {
        $user = Auth::user();
        if (!$user->can('upload layers') && !$user->hasRole('Admin')) {
            session()->flash('error', 'Sin permisos.');
            return;
        }

        $this->validate();

        if (!$this->projectId || !$this->phaseId) {
            session()->flash('error', 'Faltan datos del proyecto/fase.');
            return;
        }

        $project = Project::findOrFail($this->projectId);
        $phase = Phase::findOrFail($this->phaseId);

        $extension = strtolower($this->uploadFile->getClientOriginalExtension());
        $mime = $this->uploadFile->getMimeType();

        $allowedExtensions = ['geojson', 'kmz', 'kml', 'shp', 'dwg', 'zip'];
        $allowedMimes = [
            'application/vnd.google-earth.kml+xml',
            'application/vnd.google-earth.kmz',
            'application/zip',
            'application/x-zip-compressed',
            'application/x-shapefile',
            'image/vnd.dwg',
            'application/acad',
            'application/geo+json',
            'text/xml',
            'application/xml',
        ];

        if (!in_array($extension, $allowedExtensions) && !in_array($mime, $allowedMimes)) {
            session()->flash('error', 'Tipo de archivo no permitido.');
            return;
        }

        $projectDir = "uploads/projects/{$project->id}/layers";
        $originalPath = $this->uploadFile->store($projectDir, 'public');
        $geojson = SpatialFileConverter::convertToGeoJson($this->uploadFile);

        if (!$geojson) {
            session()->flash('error', 'Conversión fallida.');
            return;
        }

        $layerColor = $this->layerColor ?: '#3b82f6';
        $geojson['style'] = ['color' => $layerColor];

        $layer = Layer::create([
            'project_id' => $project->id,
            'phase_id' => $phase->id,
            'name' => $this->layerName,
            'color' => $layerColor,
            'original_file' => $originalPath,
            'uploaded_by' => $user->id,
        ]);

        if (isset($geojson['features'])) {
            foreach ($geojson['features'] as $featureData) {
                Feature::create([
                    'layer_id' => $layer->id,
                    'name' => $featureData['properties']['name'] ?? null,
                    'geometry' => $featureData['geometry'],
                    'properties' => $featureData['properties'] ?? [],
                    'template_id' => $featureData['properties']['template_id'] ?? null,
                    'progress' => $featureData['properties']['progress'] ?? 0,
                    'responsible' => $featureData['properties']['responsible'] ?? null,
                ]);
            }
        }

        $this->reset(['uploadFile', 'layerName']);
        session()->flash('message', "Capa '{$layer->name}' importada correctamente con " . count($geojson['features'] ?? []) . ' elementos.');
        $this->dispatch('layerUploaded', projectId: $project->id);
    }

    public function render()
    {
        $projects = Project::accessibleBy(Auth::user())->get();
        $phases = $this->projectId ? Phase::where('project_id', $this->projectId)->orderBy('order')->get() : collect();

        return view('livewire.layer-upload', compact('projects', 'phases'));
    }
}