<?php

namespace App\Http\Requests\Auth;

use App\Models\User;
use Illuminate\Auth\Events\Lockout;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\RateLimiter;
use Illuminate\Support\Str;
use Illuminate\Validation\ValidationException;

class LoginRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     */
    public function authorize(): bool
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array<string, \Illuminate\Contracts\Validation\Rule|array|string>
     */
    public function rules(): array
    {
        return [
            'email' => ['required', 'string', 'email'],
            'password' => ['required', 'string'],
        ];
    }

    /**
     * Attempt to authenticate the request's credentials.
     *
     * @throws \Illuminate\Validation\ValidationException
     */
    public function authenticate(): void
    {
        $this->ensureIsNotRateLimited();

        if (! Auth::attempt($this->only('email', 'password'), $this->boolean('remember'))) {
            RateLimiter::hit($this->throttleKey());

            throw ValidationException::withMessages([
                'email' => trans('auth.failed'),
            ]);
        }

        RateLimiter::clear($this->throttleKey());
    }

    /**
     * Ensure the login request is not rate limited.
     * Special handling: Students get 3 attempts, others get 5 attempts.
     *
     * @throws \Illuminate\Validation\ValidationException
     */
    public function ensureIsNotRateLimited(): void
    {
        $email = $this->string('email');
        $user = User::where('email', $email)->first();
        
        // Tentukan limit berdasarkan role (khusus siswa: 3x, lainnya: 5x)
        $maxAttempts = 5; // Default untuk BK, Admin, dan user lainnya
        $isStudent = false;
        
        if ($user && $user->role === 'siswa') {
            $maxAttempts = 3; // Siswa hanya boleh 3x
            $isStudent = true;
        }

        if (! RateLimiter::tooManyAttempts($this->throttleKey(), $maxAttempts)) {
            return;
        }

        event(new Lockout($this));

        // Special message untuk siswa yang sudah 3x gagal
        if ($isStudent) {
            throw ValidationException::withMessages([
                'email' => '❌ Anda sudah salah password 3 kali. Silakan reset password melalui "Lupa Password" untuk keamanan akun Anda.',
                'forgot_password' => true, // Flag khusus untuk redirect
                'email_value' => $email, // Kirim email untuk auto-fill
            ]);
        }

        $seconds = RateLimiter::availableIn($this->throttleKey());

        throw ValidationException::withMessages([
            'email' => trans('auth.throttle', [
                'seconds' => $seconds,
                'minutes' => ceil($seconds / 60),
            ]),
        ]);
    }

    /**
     * Get the rate limiting throttle key for the request.
     */
    public function throttleKey(): string
    {
        return Str::transliterate(Str::lower($this->string('email')).'|'.$this->ip());
    }
}