<?php

namespace App\Http\Controllers;

use App\Models\BookRecommendation;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;

class BookRecommendationController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index()
    {
        $relations = [];
        $bookRecommendations = BookRecommendation::query();
        if (request()->has('with')) {
            $relations = explode(',', request()->with);
            $bookRecommendations->with($relations);
        }
        if(request()->has('status')) {
            $bookRecommendations->where('status', request()->status);
        }

        return $bookRecommendations->get();
    }

    /**
     * Show the form for creating a new resource.
     */
    public function create()
    {
        //
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {
        $request->validate([
            'book_name' => 'required|string|max:255',
            'author' => 'required|string|max:255',
            'description' => 'nullable|string',
            'isbn' => 'required|string|unique:book_recommendations,isbn',
            'pages' => 'required|integer',
            'status' => 'in:PENDING,COMPLETED,REJECTED,ACTIVE',
            'cover_image' => 'nullable|image|mimes:jpeg,png,jpg,gif|max:2048',
        ]);

        $data = $request->all();

        if ($request->hasFile('cover_image')) {
            $imagePath = $request->file('cover_image')->store('cover_images', 'public');
            $data['cover_image'] = $imagePath;
        }

        $bookRecommendation = BookRecommendation::create([...$data, 'recommended_by' => auth()->id()]);
        return response()->json($bookRecommendation, 201);
    }

    /**
     * Display the specified resource.
     */
    public function show(string $id)
    {
        $relations = [];
        if (request()->has('with')) {
            $relations = explode(',', request()->with);
        }

        $bookRecommendation = BookRecommendation::with($relations)->findOrFail($id);
        return response()->json($bookRecommendation);
    }

    /**
     * Show the form for editing the specified resource.
     */
    public function edit(string $id)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, string $id)
    {
        $bookRecommendation = BookRecommendation::findOrFail($id);
        $request->validate([
            'book_name' => 'string|max:255',
            'author' => 'string|max:255',
            'description' => 'nullable|string',
            'isbn' => 'string|unique:book_recommendations,isbn,'.$bookRecommendation->id,
            'pages' => 'integer',
            'recommended_by' => 'exists:users,id',
            'status' => 'in:PENDING,COMPLETED,REJECTED,ACTIVE',
            'cover_image' => 'nullable|image|mimes:jpeg,png,jpg,gif|max:2048',
        ]);


        if ($bookRecommendation->recommended_by !== auth()->id() && !(auth()->user()->hasRole('admin')) ) {
            return response()->json(['message' => 'Keine Berechtigung.'], 403);
        }

        $data = $request->all();

        if ($request->hasFile('cover_image')) {
            // Delete old image if exists
            if ($bookRecommendation->cover_image) {
                Storage::delete($bookRecommendation->cover_image);
            }

            $imagePath = $request->file('cover_image')->store('cover_images', 'public');
            $data['cover_image'] = $imagePath;
        }

        $bookRecommendation->update($data);

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

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(string $id)
    {
        $bookRecommendation = BookRecommendation::findOrFail($id);
        if ($bookRecommendation->recommended_by !== auth()->id() && !(auth()->user()->hasRole('admin')) ) {
            return response()->json(['message' => 'Keine Berechtigung.'], 403);
        }
        if ($bookRecommendation->cover_image) {
            Storage::delete($bookRecommendation->cover_image);
        }
        $bookRecommendation->delete();
        return response()->json(null, 204);
    }
}