Add get_help, support for default valve with the discord function

discord.json

@@ -27,7 +27,9 @@
     		"parameters": [
     			{
     				"name": "name",
-    				"type": "str"
+    				"type": "str",
+    				"default": "this user",
+                    "description": "The user to greet"
     			}
     		]
     	}
@@ -41,13 +43,14 @@
                 {
                     "name": "name",
                     "type": "str",
+                    "default": "this user",
                     "description": "The user to greet"
                 }
             ]
         },
         {
             "name": "get_kudos",
-            "description": "The amount of Kudos this user has.",
+            "description": "Get the amount of Kudos this user has.",
             "function": "get_kudos",
             "parameters": []
         },
@@ -62,6 +65,19 @@
                     "description": "The ID of asyncronous generation request."
                 }
             ]
+        },
+        {
+        	"name": "help",
+        	"description": "To query supported command(s) in this app.",
+        	"function": "get_help",
+        	"parameters": [
+	        	{
+	        		"name": "command_name",
+	        		"type": "str",
+	        		"default": "",
+	        		"description": "The command name to query. Keep it empty to query all commands."
+	        	}
+        	]
         }
     ]
 }

discord_bot.py

@@ -61,8 +61,8 @@ def generate_discord_command_callback_param_str(pre: str = '', parameters: list
 		string: 生成的调用参数的代码
 	"""
 	return f'''
-	{pre}{''.join([f", {param['name']}: {param['type']}"
-	for param in parameters])}
+    {pre}{''.join([f", {param['name']}: {param['type']}" + (f' = "{param["default"]}"' if 'default' in param and param['type'] == 'str' else f" = {param['default']}" if 'default' in param else '')
+    for param in parameters])}
 '''
 
 
@@ -165,6 +165,91 @@ if "command" in json_data:
 		exec(generate_bot_command_def(command))
 
 
+def get_help(command_name: str = ''):
+	def do_with_message(message: dict):
+		result = ''
+		result += f'If message is '
+		match message['type']:
+				case "equals":
+					result += ''
+				case "contains":
+					result += 'contains '
+				case "startswith":
+					result += 'starts with '
+				case "endswith":
+					result += 'ends with '
+		result += f'"{message["content"]}", then this app will '
+		result += generate_command_help_info(message)
+		return result
+	def do_with_command(command: dict):
+		result = ''
+		result += f'If message is starts with "{command["name"]}", then this app will '
+		result += generate_command_help_info(command)
+		return result
+	def do_with_app_command(command: dict):
+		result = ''
+		result += f'If message is starts with "/{command["name"]}", then this app will '
+		result += generate_command_help_info(command)
+		return result
+	def generate_command_help_info(message: dict):
+		result = ''
+		if 'response' in message:
+			result += f'response "{message["response"]}"'
+		elif 'function' in message:
+			if 'description' in message:
+				result += f'{message["description"][0].lower()}{message["description"][1:]}'	
+			else:
+				result += f'execulate function which named "{message["function"]}"'
+			if 'parameters' in message and len(message['parameters']) > 0:
+				result += ', with parameter(s): '
+				for param in message['parameters']:
+					result += '\n\t'
+					result += f'- {param["name"]}: {param["type"]}'
+					if 'default' in param:
+						result += ' = '
+						match param['type']:
+							case 'str':
+								result += f'"{param["default"]}"'
+							case _:
+								result += f'"{param["default"]}"'
+					if 'description' in param:
+						result += f'\n\t  {param["description"]}'
+		else:
+			result += 'do nothing'
+		result += '\n'
+		return result
+	result = ''
+	if command_name is None or command_name == '':
+		if 'message' in json_data:
+			for message in json_data['message']:
+				result += do_with_message(message)
+		if 'command' in json_data:
+			for command in json_data['command']:
+				result += do_with_command(command)
+		if 'app_command' in json_data:
+			for command in json_data['app_command']:
+				result += do_with_app_command(command)
+	else:
+		if 'message' in json_data:
+			for message in json_data['message']:
+				if message['content'] != command_name:
+					continue
+				result += do_with_message(message)
+		if 'command' in json_data:
+			for command in json_data['command']:
+				if command['name'] != command_name:
+					continue
+				result += do_with_command(command)
+		if 'app_command' in json_data:
+			for command in json_data['app_command']:
+				if command['name'] != command_name:
+					continue
+				result += do_with_app_command(command)
+	if result is None or result == '':
+		result = f'Can\'t not find "{command_name}", you can type "/help" to query all commands, or "/help [command name]" to query the command.'
+	return result
+
+
 async def greet(name: str):
     return f"Hello, {name}!"