<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\User;
use App\Enums\UserRole;
use Illuminate\Http\Request;

class UserController extends Controller
{
    /**
     * Display a listing of all users.
     */
    public function index(Request $request)
    {
        $query = User::query();

        // Search functionality
        if ($request->filled('search')) {
            $search = $request->search;
            $query->where(function ($q) use ($search) {
                $q->where('name', 'like', "%{$search}%")
                  ->orWhere('username', 'like', "%{$search}%")
                  ->orWhere('email', 'like', "%{$search}%");
            });
        }

        // Filter by role
        if ($request->filled('role') && $request->role !== 'all') {
            $query->where('role', $request->role);
        }

        // Order by ID descending (newest first)
        $users = $query->orderBy('id', 'desc')->paginate(15);

        return view('admin.users.index', compact('users'));
    }

    /**
     * Show the form for creating a new user.
     */
    public function create()
    {
        return view('admin.users.create');
    }

    /**
     * Store a newly created user in storage.
     */
    public function store(Request $request)
    {
        $validated = $request->validate([
            'name' => ['required', 'string', 'max:255'],
            'username' => ['required', 'string', 'max:255', 'unique:users'],
            'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
            'password' => ['required', 'string', 'min:8', 'confirmed'],
            'role' => ['required', 'in:admin,winemaker,employee,customer'],
        ]);

        User::create($validated);

        return redirect()->route('admin.users.index')
            ->with('success', 'User created successfully.');
    }

    /**
     * Show the form for editing the specified user.
     */
    public function edit(User $user)
    {
        return view('admin.users.edit', compact('user'));
    }

    /**
     * Update the specified user in storage.
     */
    public function update(Request $request, User $user)
    {
        $validated = $request->validate([
            'name' => ['required', 'string', 'max:255'],
            'username' => ['required', 'string', 'max:255', 'unique:users,username,' . $user->id],
            'email' => ['required', 'string', 'email', 'max:255', 'unique:users,email,' . $user->id],
            'password' => ['nullable', 'string', 'min:8', 'confirmed'],
            'role' => ['required', 'in:admin,winemaker,employee,customer'],
        ]);

        // Only update password if provided
        if (empty($validated['password'])) {
            unset($validated['password']);
        }

        $user->update($validated);

        return redirect()->route('admin.users.index')
            ->with('success', 'User updated successfully.');
    }

    /**
     * Delete a user.
     */
    public function destroy(User $user)
    {
        // Prevent deleting yourself
        if ($user->id === auth()->id()) {
            return back()->with('error', 'You cannot delete your own account.');
        }

        $user->delete();

        return back()->with('success', 'User deleted successfully.');
    }
}