<?php

namespace App\Http\Controllers;

use App\Models\Post;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Validator;

class PostController extends Controller
{
    /**
     * Retrieve all posts with their associated user.
     *
     * @return \Illuminate\Http\JsonResponse A JSON response containing all posts.
     */
    public function get()
    {
        $posts = Post::with('user')->get();
        return response()->json($posts, 200);
    }

    /**
     * Create a new post.
     *
     * @param Request $request The HTTP request object.
     * @return \Illuminate\Http\JsonResponse A JSON response containing the created post.
     */
    public function post(Request $request)
    {
        //OLD-------------
        // $data = $request->all();
        // $post = new Post($data);
        // $post->user_id = auth()->id();
        // $post->save();
        // return response()->json($post, 201);
        //NEW-----------------
        $validator = Validator::make($request->all(), [
            'content' => 'required',
        ]);
        if ($validator->fails()) {
            return response()->json($validator->errors(), 400);
        }
        $post = Post::create([
            'content' => $request->content,
            'user_id' => auth()->id()
        ]);
        //you can use the $post value for future "push" function of the JavaScript instead of fetching data every time with new posts
        return response()->json($post, 201);
    }

    /**
     * Update an existing post.
     *
     * @param Request $request The HTTP request object.
     * @param int $postId The ID of the post to update.
     * @return \Illuminate\Http\JsonResponse A JSON response containing the updated post or an error message.
     */
    //OLD
//     public function put(Request $request, $postId)
//     {
//         $post = Post::find($postId);
//         if ($post && $post->user_id === auth()->id()) {
//             $data = $request->all();
//             $post->update($data);
//             return response()->json($post, 200);
//         } else {
//             return response()->json(['error' => 'You are not authorized to update this post'], 401);
//         }
//     }
// }
//NEW
    public function put(Request $request)
    {
        // below section is REQUIRED
        $validator = Validator::make($request->all(), [
            'content' => 'required',
        ]);
        if ($validator->fails()) {
            return response()->json($validator->errors(), 400);
        }
        $data = [
            'content' => $request->content
        ];
        // above section is REQUIRED

        //only owner can update the
        $post = Post::where([
            'id' => $request->id,
            'user_id' => auth()->id()
        ])->first();
        //return empty post
        if (!$post) {
            return response()->json(['error' => "You are not authorized to update this post."], 401);
        }

        $post->update($data);
        return response()->json($post, 200);
    }
}