Refactored `glances.plugins.ports.PluginModel.msg_curse()`

Part of #2801.

Signed-off-by: Ariel Otilibili <otilibil@eurecom.fr>

glances/plugins/ports/__init__.py

@@ -14,6 +14,7 @@ import socket
 import subprocess
 import threading
 import time
+from functools import partial, reduce
 
 from glances.globals import BSD, MACOS, WINDOWS, bool_type
 from glances.logger import logger
@@ -166,14 +167,55 @@ class PluginModel(GlancesPluginModel):
 
         return ret
 
+    def set_status_if_host(self, p):
+        if p['host'] is None:
+            status = 'None'
+        elif p['status'] is None:
+            status = 'Scanning'
+        elif isinstance(p['status'], bool_type) and p['status'] is True:
+            status = 'Open'
+        elif p['status'] == 0:
+            status = 'Timeout'
+        else:
+            # Convert second to ms
+            status = '{:.0f}ms'.format(p['status'] * 1000.0)
+
+        return status
+
+    def set_status_if_url(self, p):
+        if isinstance(p['status'], numbers.Number):
+            status = 'Code {}'.format(p['status'])
+        elif p['status'] is None:
+            status = 'Scanning'
+        else:
+            status = p['status']
+
+        return status
+
+    def build_str(self, name_max_width, ret, p):
+        if 'host' in p:
+            helper = self.get_ports_alert
+            status = self.set_status_if_host(p)
+        elif 'url' in p:
+            helper = self.get_web_alert
+            status = self.set_status_if_url(p)
+
+        msg = '{:{width}}'.format(p['description'][0:name_max_width], width=name_max_width)
+        ret.append(self.curse_add_line(msg))
+        msg = f'{status:>9}'
+        ret.append(self.curse_add_line(msg, helper(p, header=p['indice'] + '_rtt')))
+        ret.append(self.curse_new_line())
+
+        return ret
+
     def msg_curse(self, args=None, max_width=None):
         """Return the dict to display in the curse interface."""
         # Init the return message
         # Only process if stats exist and display plugin enable...
-        ret = []
+        init = []
 
         if not self.stats or args.disable_ports:
-            return ret
+            return init
 
         # Max size for the interface name
         if max_width:
@@ -181,40 +223,11 @@ class PluginModel(GlancesPluginModel):
         else:
             # No max_width defined, return an empty curse message
             logger.debug(f"No max_width defined for the {self.plugin_name} plugin, it will not be displayed.")
-            return ret
+            return init
 
         # Build the string message
-        for p in self.stats:
-            if 'host' in p:
-                if p['host'] is None:
-                    status = 'None'
-                elif p['status'] is None:
-                    status = 'Scanning'
-                elif isinstance(p['status'], bool_type) and p['status'] is True:
-                    status = 'Open'
-                elif p['status'] == 0:
-                    status = 'Timeout'
-                else:
-                    # Convert second to ms
-                    status = '{:.0f}ms'.format(p['status'] * 1000.0)
-
-                msg = '{:{width}}'.format(p['description'][0:name_max_width], width=name_max_width)
-                ret.append(self.curse_add_line(msg))
-                msg = f'{status:>9}'
-                ret.append(self.curse_add_line(msg, self.get_ports_alert(p, header=p['indice'] + '_rtt')))
-                ret.append(self.curse_new_line())
-            elif 'url' in p:
-                msg = '{:{width}}'.format(p['description'][0:name_max_width], width=name_max_width)
-                ret.append(self.curse_add_line(msg))
-                if isinstance(p['status'], numbers.Number):
-                    status = 'Code {}'.format(p['status'])
-                elif p['status'] is None:
-                    status = 'Scanning'
-                else:
-                    status = p['status']
-                msg = f'{status:>9}'
-                ret.append(self.curse_add_line(msg, self.get_web_alert(p, header=p['indice'] + '_rtt')))
-                ret.append(self.curse_new_line())
+        build_str_with_this_max_width = partial(self.build_str, name_max_width)
+        ret = reduce(build_str_with_this_max_width, self.stats, init)
 
         # Delete the last empty line
         try: