Get NEWGROUPS command working

lib/nntp/tiny/session.py

@@ -291,6 +291,26 @@ class Session():
 
         return self.end()
 
+    def _newsgroup_summary(self, newsgroup: Newsgroup):
+        sql = """
+            select
+                min(id),
+                max(id)
+            from
+                newsgroup_message
+            where
+                newsgroup_id = ?
+        """
+
+        cr  = self.db.execute(sql, (newsgroup.id,))
+        row = cr.fetchone()
+
+        return {
+            'min':   row[0],
+            'max':   row[1],
+            'perms': 'n'
+        }
+
     def _cmd_newgroups(self, wildmat, datestr, timestr, *args):
         gmt = False
 
@@ -298,11 +318,25 @@ class Session():
             if args[0] == "GMT":
                 gmt = True
             else:
-                return self.send_response(ResponseCode.NNTP_SYNTAX_ERROR, "Only optional 'GMT' allowed")
+                return self.respond(ResponseCode.NNTP_SYNTAX_ERROR, "Only optional 'GMT' allowed")
         elif len(args) > 1:
-            return self.send_response(ResponseCode.NNTP_SYNTAX_ERROR, "Too many arguments")
+            return self.respond(ResponseCode.NNTP_SYNTAX_ERROR, "Too many arguments")
 
-        pass
+        self.respond(ResponseCode.NNTP_GROUPS_NEW_FOLLOW)
+
+        for name in self.server.newsgroups:
+            if fnmatch.fnmatch(name, wildmat):
+                newsgroup = self.server.newsgroups[name]
+                summary   = self._newsgroup_summary(newsgroup)
+
+                self.print("%s %d %d %s" % (
+                    newsgroup.name,
+                    summary['min'],
+                    summary['max'],
+                    summary['perms']
+                ))
+
+        return self.end()
 
     COMMANDS = {
         'CAPABILITIES': _cmd_capabilities,
@@ -310,7 +344,7 @@ class Session():
         'LISTGROUP':    _cmd_listgroup,
         'LIST':         _cmd_list,
         'NEWNEWS':      _cmd_newnews,
-        'NEWSGROUPS':   _cmd_newgroups,
+        'NEWGROUPS':    _cmd_newgroups,
     }
 
     def handle(self):