<?php

namespace App\Http\Controllers;

use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;
use Illuminate\Validation\ValidationException;

class UserController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index(): JsonResponse
    {
        try {
            $users = User::all();
            return response()->json($users);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Failed to fetch users',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request): JsonResponse
    {
        try {
            $validated = $request->validate([
                'name' => 'required|string|max:255',
                'email' => 'required|string|email|max:255|unique:users',
                'password' => 'required|string|min:8',
            ]);

            $user = User::create([
                'name' => $validated['name'],
                'email' => $validated['email'],
                'password' => bcrypt($validated['password']),
            ]);

            return response()->json($user, 201);
        } catch (ValidationException $e) {
            return response()->json([
                'message' => 'Validation failed',
                'errors' => $e->errors()
            ], 422);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Failed to create user',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Display the specified resource.
     */
    public function show(User $user): JsonResponse
    {
        try {
            return response()->json($user);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Failed to fetch user',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, User $user): JsonResponse
    {
        try {
            $validated = $request->validate([
                'name' => 'sometimes|string|max:255',
                'email' => 'sometimes|string|email|max:255|unique:users,email,' . $user->id,
                'password' => 'sometimes|string|min:8',
            ]);

            if (isset($validated['password'])) {
                $validated['password'] = bcrypt($validated['password']);
            }

            $user->update($validated);

            return response()->json($user);
        } catch (ValidationException $e) {
            return response()->json([
                'message' => 'Validation failed',
                'errors' => $e->errors()
            ], 422);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Failed to update user',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(User $user): JsonResponse
    {
        try {
            $user->delete();
            return response()->json([
                'message' => 'User deleted successfully'
            ]);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Failed to delete user',
                'error' => $e->getMessage()
            ], 500);
        }
    }
}