<?php

namespace App\Controllers\Admin;

use App\Controllers\BaseController;
use App\Models\UserModel;

class Profile extends BaseController
{
    protected $userModel;

    public function __construct()
    {
        $this->userModel = new UserModel();
    }

    /**
     * Display profile edit form
     */
    public function index()
    {
        $userId = session()->get('user_id');
        
        if (!$userId) {
            return redirect()->to('/auth/login')
                ->with('error', 'Silakan login terlebih dahulu.');
        }

        $user = $this->userModel->find($userId);

        if (!$user) {
            return redirect()->to('/admin/dashboard')
                ->with('error', 'User tidak ditemukan.');
        }

        $data = [
            'title' => 'Edit Profile',
            'user' => $user,
        ];

        return view('admin/profile/index', $data);
    }

    /**
     * Update profile
     */
    public function update()
    {
        $userId = session()->get('user_id');
        
        if (!$userId) {
            return redirect()->to('/auth/login')
                ->with('error', 'Silakan login terlebih dahulu.');
        }

        $user = $this->userModel->find($userId);

        if (!$user) {
            return redirect()->to('/admin/dashboard')
                ->with('error', 'User tidak ditemukan.');
        }

        $validation = \Config\Services::validation();

        $rules = [
            'username' => 'required|min_length[3]|max_length[100]',
            'email' => 'required|valid_email|max_length[255]',
            'phone_number' => 'permit_empty|max_length[20]',
            'telegram_id' => 'permit_empty|integer',
        ];

        if (!$this->validate($rules)) {
            return redirect()->back()
                ->withInput()
                ->with('errors', $validation->getErrors());
        }

        // Check if username is unique (except current user)
        $existingUser = $this->userModel->where('username', $this->request->getPost('username'))
            ->where('id !=', $userId)
            ->first();

        if ($existingUser) {
            return redirect()->back()
                ->withInput()
                ->with('errors', ['username' => 'Username sudah digunakan.']);
        }

        // Check if email is unique (except current user)
        $existingEmail = $this->userModel->where('email', $this->request->getPost('email'))
            ->where('id !=', $userId)
            ->first();

        if ($existingEmail) {
            return redirect()->back()
                ->withInput()
                ->with('errors', ['email' => 'Email sudah digunakan.']);
        }

        $data = [
            'username' => $this->request->getPost('username'),
            'email' => $this->request->getPost('email'),
            'phone_number' => $this->request->getPost('phone_number') ?: null,
            'telegram_id' => $this->request->getPost('telegram_id') ?: null,
        ];

        // Update password if provided
        $newPassword = $this->request->getPost('password');
        if (!empty($newPassword)) {
            if (strlen($newPassword) < 6) {
                return redirect()->back()
                    ->withInput()
                    ->with('error', 'Password minimal 6 karakter.');
            }
            $data['password_hash'] = password_hash($newPassword, PASSWORD_DEFAULT);
        }

        if ($this->userModel->update($userId, $data)) {
            // Update session data
            session()->set([
                'username' => $data['username'],
                'email' => $data['email'],
            ]);

            return redirect()->to('/admin/profile')
                ->with('success', 'Profile berhasil diperbarui.');
        }

        return redirect()->back()
            ->withInput()
            ->with('error', 'Gagal memperbarui profile.');
    }
}