<?php

namespace App\Actions\Fortify;

use App\Actions\Fortify\Rules\PasswordValidationRules;
use App\Models\Miscellaneous\WebsiteBetaCode;
use App\Models\User;
use App\Rules\BetaCodeRule;
use App\Rules\GoogleRecaptchaRule;
use App\Rules\WebsiteWordfilterRule;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Str;
use Illuminate\Validation\Rule;
use Illuminate\Validation\ValidationException;
use Laravel\Fortify\Contracts\CreatesNewUsers;
use RyanChandler\LaravelCloudflareTurnstile\Rules\Turnstile;

class CreateNewUser implements CreatesNewUsers
{
    use PasswordValidationRules;

    /**
     * Validate and create a newly registered user.
     *
     * @param  array<string, mixed>  $input
     */
    public function create(array $input): User
    {
        if ((setting('disable_registration') ?: '0') == '1') {
            throw ValidationException::withMessages([
                'registration' => __('Registration is disabled.'),
            ]);
        }

        $ip = request()->ip() ?? '127.0.0.1';
        if (! filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_IPV6)) {
            $ip = '127.0.0.1';
        }

        $matchingIpCount = User::query()
            ->where('ip_current', '=', $ip)
            ->orWhere('ip_register', '=', $ip)
            ->count();

        $maxAccountsPerIpSetting = setting('max_accounts_per_ip');
        setting('hotel_home_room');
        $maxAccountsPerIp = (int) (is_string($maxAccountsPerIpSetting) ? $maxAccountsPerIpSetting : '99');
        if ($matchingIpCount >= $maxAccountsPerIp) {
            throw ValidationException::withMessages([
                'registration' => __('You have reached the max amount of allowed account'),
            ]);
        }

        $this->validate($input);

        $startCreditsSetting = setting('start_credits');
        $hotelHomeRoomSetting = setting('hotel_home_room');

        /** @var User $user */
        $user = User::create([
            'username' => $input['username'],
            'mail' => $input['mail'],
            'password' => Hash::make(is_string($input['password']) ? $input['password'] : ''),
            'account_created' => time(),
            'last_login' => time(),
            'motto' => setting('start_motto') ?: 'Welcome to the hotel!',
            'look' => $input['look'] ?? setting('start_look') ?: 'hr-100-61.hd-180-1.ch-210-66.lg-270-110.sh-305-62',
            'credits' => (int) (is_string($startCreditsSetting) ? $startCreditsSetting : '1000'),
            'auth_ticket' => '',
            'home_room' => (int) (is_string($hotelHomeRoomSetting) ? $hotelHomeRoomSetting : '0'),
            'ip_register' => $ip,
            'ip_current' => $ip,
        ]);

        $user->update([
            'referral_code' => sprintf('%d%s', $user->id, Str::random(8)),
        ]);

        if (setting('requires_beta_code')) {
            WebsiteBetaCode::where('code', '=', $input['beta_code'])->update([
                'user_id' => $user->id,
            ]);
        }

        // Referral
        if (isset($input['referral_code'])) {
            /** @var User|null $referralUser */
            $referralUser = User::query()
                ->where('referral_code', '=', $input['referral_code'])
                ->first();

            // Only process referral if users have different IPs
            if ($referralUser !== null && ($referralUser->ip_current != $user->ip_current && $referralUser->ip_register != $user->ip_register)) {
                $referralUser->referrals()->updateOrCreate(['user_id' => $referralUser->id], [
                    'referrals_total' => $referralUser->referrals !== null ? $referralUser->referrals->referrals_total + 1 : 1,
                ]);
                $referralUser->userReferrals()->create([
                    'referred_user_id' => $user->id,
                    'referred_user_ip' => $ip,
                ]);
            }
        }

        if (setting('enable_discord_webhook') === '1') {
            $discordRanksSetting = setting('discord_webhook_ranks', '[]');
            $discordRanks = json_decode($discordRanksSetting, true) ?? [];

            $shouldNotify = false;

            if (! empty($discordRanks)) {
                $shouldNotify = in_array($user->rank, $discordRanks);
            } else {
                $minStaffRank = (int) setting('min_staff_rank', 3);
                $shouldNotify = $user->rank >= $minStaffRank;
            }

            if ($shouldNotify) {
                $this->sendDiscordWebhook($user->username, $ip, $user->mail);
            }
        }

        return $user;
    }

    /**
     * @param  array<string, mixed>  $inputs
     *
     * @return array<string, mixed>
     */
    private function validate(array $inputs): array
    {
        $usernameRegexSetting = setting('username_regex');
        $usernameRegex = is_string($usernameRegexSetting) ? $usernameRegexSetting : '/^[a-zA-Z0-9_.-]+$/';

        $rules = [
            'username' => ['required', 'string', 'regex:' . $usernameRegex, 'max:25', Rule::unique('users'), new WebsiteWordfilterRule],
            'mail' => ['required', 'string', 'email', 'max:255', Rule::unique('users')],
            'password' => $this->passwordRules(),
            'beta_code' => ['sometimes', 'string', new BetaCodeRule],
            'terms' => ['required', 'accepted'],
            'g-recaptcha-response' => ['sometimes', 'string', new GoogleRecaptchaRule],
            'look' => ['sometimes', 'string'],
        ];

        if (! empty($inputs['cf-turnstile-response'])) {
            $rules['cf-turnstile-response'] = [app(Turnstile::class)];
        }

        $messages = [
            'g-recaptcha-response.required' => __('The Google recaptcha must be completed'),
            'g-recaptcha-response.string' => __('The google recaptcha was submitted with an invalid type'),
        ];

        return Validator::make($inputs, $rules, $messages)->validate();
    }

    private function sendDiscordWebhook(string $username, string $ip, string $email): void
    {
        if (setting('discord_webhook_url') === '') {
            Log::error('Discord webhook url not provided', ['Please provide a discord webhook url before being able to send any webhook requests.']);

            return;
        }

        $discordWebhookUrl = setting('discord_webhook_url');
        $hotelNameSetting = setting('hotel_name');

        try {
            Http::asJson()->post(is_string($discordWebhookUrl) ? $discordWebhookUrl : '', [
                'username' => sprintf('%s Bot', is_string($hotelNameSetting) ? $hotelNameSetting : 'Hotel'),
                'content' => "User: {$username} has just registered, with the IP: {$ip} and E-mail: {$email}",
            ]);
        } catch (\Exception $e) {
            Log::error('Failed to send Discord webhook notification', [
                'username' => $username,
                'ip' => $ip,
                'email' => $email,
                'error' => $e->getMessage(),
            ]);
        }
    }
}