<?php

namespace App\Http\Controllers;

use App\Models\NailPolish;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use Intervention\Image\Facades\Image;

class NailPolishController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index(Request $request)
    {
        $search = $request->get('search');
        
        $nailPolishes = NailPolish::when($search, function($query) use ($search) {
            return $query->search($search);
        })->orderBy('name')->paginate(20);
        
        return view('nail-polishes.index', compact('nailPolishes', 'search'));
    }

    /**
     * Show the form for creating a new resource.
     */
    public function create()
    {
        return view('nail-polishes.create');
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {
        $request->validate([
            'name' => 'required|string|max:255',
            'number' => 'required|string|max:50|unique:nail_polishes',
            'image' => 'nullable|image|mimes:jpeg,png,jpg,gif|max:2048'
        ]);

        $nailPolish = new NailPolish();
        $nailPolish->name = $request->name;
        $nailPolish->number = $request->number;

        if ($request->hasFile('image')) {
            $image = $request->file('image');
            $filename = time() . '_' . $image->getClientOriginalName();
            
            // Bild optimieren und speichern
            $optimizedImage = Image::make($image)
                ->resize(300, 300, function ($constraint) {
                    $constraint->aspectRatio();
                    $constraint->upsize();
                })
                ->encode('jpg', 80);
            
            Storage::disk('public')->put('nail-polishes/' . $filename, $optimizedImage);
            $nailPolish->image_path = 'nail-polishes/' . $filename;
        }

        $nailPolish->save();

        return redirect()->route('nail-polishes.index')
            ->with('success', 'Nagellack erfolgreich hinzugefügt!');
    }

    /**
     * Display the specified resource.
     */
    public function show(NailPolish $nailPolish)
    {
        return view('nail-polishes.show', compact('nailPolish'));
    }

    /**
     * Show the form for editing the specified resource.
     */
    public function edit(NailPolish $nailPolish)
    {
        return view('nail-polishes.edit', compact('nailPolish'));
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, NailPolish $nailPolish)
    {
        $request->validate([
            'name' => 'required|string|max:255',
            'number' => 'required|string|max:50|unique:nail_polishes,number,' . $nailPolish->id,
            'image' => 'nullable|image|mimes:jpeg,png,jpg,gif|max:2048'
        ]);

        $nailPolish->name = $request->name;
        $nailPolish->number = $request->number;

        if ($request->hasFile('image')) {
            // Altes Bild löschen
            if ($nailPolish->image_path) {
                Storage::disk('public')->delete($nailPolish->image_path);
            }

            $image = $request->file('image');
            $filename = time() . '_' . $image->getClientOriginalName();
            
            // Bild optimieren und speichern
            $optimizedImage = Image::make($image)
                ->resize(300, 300, function ($constraint) {
                    $constraint->aspectRatio();
                    $constraint->upsize();
                })
                ->encode('jpg', 80);
            
            Storage::disk('public')->put('nail-polishes/' . $filename, $optimizedImage);
            $nailPolish->image_path = 'nail-polishes/' . $filename;
        }

        $nailPolish->save();

        return redirect()->route('nail-polishes.index')
            ->with('success', 'Nagellack erfolgreich aktualisiert!');
    }

    /**
     * Löscht einen Nagellack
     */
    public function destroy(NailPolish $nailPolish)
    {
        try {
            // Prüfe, ob der Lack von anderen Usern verwendet wird
            $usersWithThisPolish = $nailPolish->users()->count();
            
            if ($usersWithThisPolish > 0) {
                return back()->with('error', "Dieser Lack kann nicht gelöscht werden, da er von {$usersWithThisPolish} Benutzer(n) in ihrer Sammlung verwendet wird. Bitte entfernen Sie ihn zuerst aus allen Sammlungen.");
            }
            
            // Lösche das Bild, falls vorhanden
            if ($nailPolish->image_path && Storage::disk('public')->exists($nailPolish->image_path)) {
                Storage::disk('public')->delete($nailPolish->image_path);
            }
            
            $nailPolish->delete();
            
            return redirect()->route('nail-polishes.index')
                ->with('success', "Lack '{$nailPolish->name}' wurde erfolgreich gelöscht!");
                
        } catch (\Exception $e) {
            return back()->with('error', 'Fehler beim Löschen des Lackes: ' . $e->getMessage());
        }
    }

    /**
     * Zeigt an, welche User einen bestimmten Lack haben
     */
    public function showUsers(NailPolish $nailPolish)
    {
        $users = $nailPolish->users()->paginate(20);
        
        return view('nail-polishes.show-users', compact('nailPolish', 'users'));
    }
}