<?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\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\ValidationRule|array<mixed>|string>
     */
    public function rules(): array
    {
        return [
            'email' => ['required', 'string', 'email'],
            'password' => ['required', 'string'],
        ];
    }

    /**
     * Validate the request's credentials and return the user without logging them in.
     *
     * @throws \Illuminate\Validation\ValidationException
     */
    public function validateCredentials(): User
    {
        $this->ensureIsNotRateLimited();

        /** @var User|null $user */
        $user = Auth::getProvider()->retrieveByCredentials($this->only('email', 'password'));

        if (! $user || ! Auth::getProvider()->validateCredentials($user, $this->only('password'))) {
            RateLimiter::hit($this->throttleKey());

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

        // Info users cannot log in - they are for reference only
        if ($user->isInfoUser()) {
            RateLimiter::hit($this->throttleKey());

            throw ValidationException::withMessages([
                'email' => 'This account is for informational purposes only and cannot be used to log in.',
            ]);
        }

        if ($user->isClientUser() && ! $user->isClientApproved()) {
            RateLimiter::hit($this->throttleKey());

            $message = match ($user->approval_status) {
                'pending' => 'Your client account is still pending administrator approval.',
                'deactivated' => 'Your client account has been deactivated. Please contact the company if you need access restored.',
                'rejected' => 'Your client registration was not approved.',
                default => 'Your client account cannot sign in at this time.',
            };

            throw ValidationException::withMessages([
                'email' => $message,
            ]);
        }

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

        return $user;
    }

    /**
     * Ensure the login request is not rate limited.
     *
     * @throws \Illuminate\Validation\ValidationException
     */
    public function ensureIsNotRateLimited(): void
    {
        if (! RateLimiter::tooManyAttempts($this->throttleKey(), 5)) {
            return;
        }

        event(new Lockout($this));

        $seconds = RateLimiter::availableIn($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 $this->string('email')
            ->lower()
            ->append('|'.$this->ip())
            ->transliterate()
            ->value();
    }
}
