Help check active extension, permissions and extension's description

extensions/__init__.py

@@ -4,7 +4,7 @@ bot.load_extension("extensions.help")
 bot.load_extension("extensions.extension")
 bot.load_extension("extensions.purge")
 bot.load_extension("extensions.poll")
-bot.load_extension("extensions.reminders")
+bot.load_extension("extensions.reminder")
 bot.load_extension("extensions.greetings")
 bot.load_extension("extensions.presentation")
 bot.load_extension("extensions.rorec")

extensions/extension.py

@@ -12,6 +12,9 @@ class Extension(commands.Cog):
     def __init__(self, bot: commands.Bot):
         self.bot = bot
 
+    def description(self):
+        return "Manage bot's extensions"
+
     @commands.group("extension", pass_context=True)
     @commands.check(is_owner)
     async def extension(self, ctx: commands.Context):

extensions/greetings.py

@@ -19,6 +19,9 @@ class Greetings(commands.Cog):
     def __init__(self, bot: commands.Bot):
         self.bot = bot
 
+    def description(self):
+        return "Setup join and leave message"
+
     @commands.group("greetings", pass_context=True)
     @commands.guild_only()
     @commands.has_permissions(manage_guild=True)

extensions/help.py

@@ -1,7 +1,7 @@
 from discord import Embed
 from discord.ext import commands
 from discord.ext.commands import CommandNotFound, MissingRequiredArgument, BadArgument, MissingPermissions, \
-    NoPrivateMessage
+    NoPrivateMessage, CommandError
 
 from administrator import config
 from administrator.logger import logger
@@ -16,30 +16,24 @@ class Help(commands.Cog):
     def __init__(self, bot: commands.Bot):
         self.bot = bot
 
+    def description(self):
+        return "Give help and command list"
+
     @commands.command("help", pass_context=True)
     async def help(self, ctx: commands.Context):
         embed = Embed(title="Help")
-        embed.add_field(name="Poll", value="Create poll with a simple command\n"
-                                           f"`{config.get('prefix')}poll help` for more information", inline=False)
-        embed.add_field(name="Reminders", value="Create reminders\n"
-                                                f"`{config.get('prefix')}reminder help` for more information",
-                        inline=False)
-        permissions = ctx.channel.permissions_for(ctx.author)
-        if permissions.manage_messages:
-            embed.add_field(name="Purge", value="Purge all messages between the command and the next add reaction\n"
-                                                f"`{config.get('prefix')}purge help` for more information", inline=False)
-        if permissions.manage_guild:
-            embed.add_field(name="Greetings", value="Setup join and leave message\n"
-                                                    f"`{config.get('prefix')}greetings help` for more information",
-                            inline=False)
-            embed.add_field(name="Presentation", value="Give role to user who make a presentation in a dedicated "
-                                                       "channel\n"
-                                                       f"`{config.get('prefix')}presentation help` for more information",
-                            inline=False)
-        if await is_owner(ctx):
-            embed.add_field(name="Extension", value="Manage bot extensions\n"
-                                                    f"`{config.get('prefix')}extension help` for more information",
-                            inline=False)
+
+        for c in filter(lambda x: x != "Help", self.bot.cogs):
+            cog = self.bot.cogs[c]
+            try:
+                if await getattr(cog, c.lower()).can_run(ctx):
+                    embed.add_field(name=c,
+                                    value=cog.description() + "\n" +
+                                    f"`{config.get('prefix')}{c.lower()} help` for more information",
+                                    inline=False)
+            except CommandError:
+                pass
+
         await ctx.send(embed=embed)
 
     @commands.Cog.listener()

extensions/poll.py

@@ -19,6 +19,9 @@ class Poll(commands.Cog):
         self.bot = bot
         self.polls = {}
 
+    def description(self):
+        return "Create poll with a simple command"
+
     @commands.group("poll", pass_context=True)
     @commands.guild_only()
     async def poll(self, ctx: commands.Context, name: str, *choices):

extensions/presentation.py

@@ -14,6 +14,9 @@ class Presentation(commands.Cog):
     def __init__(self, bot: commands.Bot):
         self.bot = bot
 
+    def description(self):
+        return "Give role to user who make a presentation in a dedicated channel"
+
     @commands.group("presentation", pass_context=True)
     @commands.guild_only()
     @commands.has_permissions(manage_guild=True)

extensions/purge.py

@@ -15,6 +15,9 @@ class Purge(commands.Cog):
         self.bot = bot
         self.purges = {}
 
+    def description(self):
+        return "Purge all messages between the command and the next add reaction"
+
     @commands.group("purge", pass_context=True)
     @commands.guild_only()
     @commands.has_permissions(manage_messages=True)

extensions/reminder.py

@@ -25,10 +25,13 @@ def time_pars(s: str) -> timedelta:
     raise BadArgument()
 
 
-class Reminders(commands.Cog):
+class Reminders(commands.Cog, name="Reminder"):
     def __init__(self, bot: commands.Bot):
         self.bot = bot
 
+    def description(self):
+        return "Create and manage reminders"
+
     @commands.group("reminder", pass_context=True)
     async def reminder(self, ctx: commands.Context):
         if ctx.invoked_subcommand is None:
@@ -56,9 +59,9 @@ class Reminders(commands.Cog):
         hours, seconds = divmod(time.seconds, 3600)
         minutes, seconds = divmod(seconds, 60)
         await ctx.send(f"""Remind you in {f"{time.days}d {hours}h {minutes}m {seconds}s"
-            if time.days > 0 else f"{hours}h {minutes}m {seconds}s"
-            if hours > 0 else f"{minutes}m {seconds}s"
-            if minutes > 0 else f"{seconds}s"} !""")
+        if time.days > 0 else f"{hours}h {minutes}m {seconds}s"
+        if hours > 0 else f"{minutes}m {seconds}s"
+        if minutes > 0 else f"{seconds}s"} !""")
 
     @reminder.group("list", pass_context=True)
     async def reminder_list(self, ctx: commands.Context):

extensions/rorec.py

@@ -21,6 +21,9 @@ class RoRec(commands.Cog):
         self.bot = bot
         self.edits = {}
 
+    def description(self):
+        return "Create role-reaction message to give role from a reaction add"
+
     @staticmethod
     def get_message(session: db.Session, message_id: int, guild_id: int) -> db.RoRec:
         m = session.query(db.RoRec).filter(db.RoRec.message == message_id and db.RoRec.guild == guild_id).first()