<?php

namespace App\Providers;

use App\Http\Services\SignRSA;
use App\Models\Setting;
use App\Support\Cache\CacheKey;
use Illuminate\Support\Facades\App;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Config;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\ServiceProvider;

class MailConfigServiceProvider extends ServiceProvider
{
    private static ?array $resolved = null;

    public function register()
    {
        //
    }

    public function boot()
    {
        if (App::runningInConsole()) {
            return;
        }

        if (self::$resolved !== null) {
            Config::set('mail', self::$resolved);
            return;
        }

        $config = Cache::remember(CacheKey::build('settings', 'mail'), 3600, function () {
            if (!Schema::hasTable('setting')) {
                return null;
            }

            $mail = Setting::where('key', 'smtp')->first();
            $setting = Setting::where('key', 'setting')->first();

            if (!$mail || !$setting) {
                return null;
            }

            $mail = json_decode($mail->value);
            $company = json_decode($setting->value)->company ?? 'Your Company';

            $password = '';
            if (isset($mail->password)) {
                $decrypted = (new SignRSA())->DecryptFunc($mail->password);
                $password = $decrypted ?: $mail->password;
            }

            $transport = $mail->transport ?? 'smtp';
            $encryption = $mail->encryption ?? config('mail.mailers.smtp.encryption');

            if ($encryption === 0 || $encryption === '0' || $encryption === 'starttls') {
                $encryption = 'tls';
            }

            $config = config('mail');
            $config['default'] = $transport;
            $config['from'] = [
                'address' => $mail->from_address ?? $mail->user ?? config('mail.from.address', 'no-reply@example.com'),
                'name'    => $mail->from_name ?? $company,
            ];
            $config['mailers'][$transport] = array_merge($config['mailers'][$transport] ?? [], [
                'transport'  => $transport,
                'host'       => $mail->host ?? '',
                'port'       => $mail->port ?? 587,
                'encryption' => $encryption,
                'username'   => $mail->user ?? '',
                'password'   => $password,
            ]);

            return $config;
        });

        if ($config) {
            self::$resolved = $config;
            Config::set('mail', $config);
        }
    }
}