Update Installer command

app/Console/Commands/Installer.php

@@ -83,6 +83,14 @@ class Installer extends Command
             'mbstring',
             'openssl'
         ];
+        $ffmpeg = exec('which ffmpeg');
+        if(empty($ffmpeg)) {
+            $this->error('FFmpeg not found, please install it.');
+            $this->error('Cancelling installation.');
+            exit;
+        } else {
+            $this->info('- Found FFmpeg!');
+        }
         $this->line('');
         $this->info('Checking for required php extensions...');
         foreach($extensions as $ext) {
@@ -148,18 +156,100 @@ class Installer extends Command
     {
         $this->line('');
         // copy env
-        $name = $this->ask('Site name [ex: Pixelfed]');
+        if(!file_exists(app()->environmentFilePath())) {
-        $domain = $this->ask('Site Domain [ex: pixelfed.com]');
+            exec('cp .env.example .env');
-        $tls = $this->choice('Use HTTPS/TLS?', ['https', 'http'], 0);
+            $this->call('key:generate');            
-        $dbDrive = $this->choice('Select database driver', ['mysql', 'pgsql'/*, 'sqlite', 'sqlsrv'*/], 0);
+        }
-        $ws = $this->choice('Select cache driver', ["apc", "array", "database", "file", "memcached", "redis"], 5);
 
+        $name = $this->ask('Site name [ex: Pixelfed]');
+        $this->updateEnvFile('APP_NAME', $name ?? 'pixelfed');
+
+        $domain = $this->ask('Site Domain [ex: pixelfed.com]');
+        $this->updateEnvFile('APP_DOMAIN', $domain ?? 'example.org');
+        $this->updateEnvFile('ADMIN_DOMAIN', $domain ?? 'example.org');
+        $this->updateEnvFile('SESSION_DOMAIN', $domain ?? 'example.org');
+        $this->updateEnvFile('APP_URL', 'https://' . $domain ?? 'https://example.org');
+
+        $database = $this->choice('Select database driver', ['mysql', 'pgsql'], 0);
+        $this->updateEnvFile('DB_CONNECTION', $database ?? 'mysql');
+        switch ($database) {
+            case 'mysql':
+                $database_host = $this->ask('Select database host', '127.0.0.1');
+                $this->updateEnvFile('DB_HOST', $database_host ?? 'mysql');
+
+                $database_port = $this->ask('Select database port', 3306);
+                $this->updateEnvFile('DB_PORT', $database_port ?? 3306);
+
+                $database_db = $this->ask('Select database', 'pixelfed');
+                $this->updateEnvFile('DB_DATABASE', $database_db ?? 'pixelfed');
+
+                $database_username = $this->ask('Select database username', 'pixelfed');
+                $this->updateEnvFile('DB_USERNAME', $database_username ?? 'pixelfed');
+
+                $db_pass = str_random(64);
+                $database_password = $this->secret('Select database password', $db_pass);
+                $this->updateEnvFile('DB_PASSWORD', $database_password);
+            break;
+            
+        }
+
+        $cache = $this->choice('Select cache driver', ["redis", "apc", "array", "database", "file", "memcached"], 0);
+        $this->updateEnvFile('CACHE_DRIVER', $cache ?? 'redis');
+
+        $session = $this->choice('Select session driver', ["redis", "file", "cookie", "database", "apc", "memcached", "array"], 0);
+        $this->updateEnvFile('SESSION_DRIVER', $cache ?? 'redis');
+
+        $redis_host = $this->ask('Set redis host', 'localhost');
+        $this->updateEnvFile('REDIS_HOST', $redis_host);
+
+        $redis_password = $this->ask('Set redis password', 'null');
+        $this->updateEnvFile('REDIS_PASSWORD', $redis_password);
+
+        $redis_port = $this->ask('Set redis port', 6379);
+        $this->updateEnvFile('REDIS_PORT', $redis_port);
+
+        $open_registration = $this->choice('Allow new registrations?', ['true', 'false'], 1);
+        $this->updateEnvFile('OPEN_REGISTRATION', $open_registration);
+
+        $enforce_email_verification = $this->choice('Enforce email verification?', ['true', 'false'], 0);
+        $this->updateEnvFile('ENFORCE_EMAIL_VERIFICATION', $enforce_email_verification);
+
+    }
+
+    protected function updateEnvFile($key, $value)
+    {
+        $envPath = app()->environmentFilePath();
+        $payload = file_get_contents($envPath);
+
+        if ($existing = $this->existingEnv($key, $payload)) {
+            $payload = str_replace("{$key}={$existing}", "{$key}=\"{$value}\"", $payload);
+            $this->storeEnv($payload);
+        } else {
+            $payload = $payload . "\n{$key}=\"{$value}\"\n";
+            $this->storeEnv($payload);
+        }
+    }
+
+    protected function existingEnv($needle, $haystack)
+    {
+        preg_match("/^{$needle}=[^\r\n]*/m", $haystack, $matches);
+        if ($matches && count($matches)) {
+            return substr($matches[0], strlen($needle) + 1);
+        }
+        return false;
+    }
+
+    protected function storeEnv($payload)
+    {
+        $file = fopen(app()->environmentFilePath(), 'w');
+        fwrite($file, $payload);
+        fclose($file);
     }
 
     protected function postInstall()
     {
         $this->callSilent('config:cache');
-        //$this->call('route:cache');
+        //$this->callSilent('route:cache');
         $this->info('Pixelfed has been successfully installed!');
     }
 }