def dispatch(self,
event: EventMessage,
flag_list: List[str] = None) -> None:
"""
Sends the function call out to whichever function, if one is found
:param event: The message event which has triggered the function dispatch
:param flag_list: List of flags to apply to function call
"""
if flag_list is None:
flag_list = []
# Find the function name. Try joining each amount of words in the message until you find a valid function name
function_message_split = event.command_text.split()
if not function_message_split:
function_message_split = [""]
function_class_test = None
function_name_test = ""
function_args_test = ""
for function_name_test in [
" ".join(function_message_split[:x + 1])
for x in range(len(function_message_split))[::-1]
]:
function_class_test = self.get_function_by_name(function_name_test)
function_args_test = " ".join(
function_message_split)[len(function_name_test):].strip()
if function_class_test is not None:
break
# If function isn't found, output a not found message
if function_class_test is None:
if EventMessage.FLAG_HIDE_ERRORS not in flag_list:
event.reply(
event.create_response(
"Error, this is not a recognised function."))
error = FunctionNotFoundError(self, event)
logger.error(error.get_log_line())
return
function_class = function_class_test
event.split_command_text(function_name_test, function_args_test)
# Check function rights and permissions
if not self.check_function_permissions(function_class, event.server,
event.user, event.channel):
event.reply(
event.create_response(
"You do not have permission to use this function."))
error = FunctionNotAllowedError(self, function_class, event)
logger.error(error.get_log_line())
return
# If persistent, get the object, otherwise make one
function_obj = self.get_function_object(function_class)
# Try running the function, if it fails, return an error message
try:
response = function_obj.run(event)
if response is not None:
event.reply(response)
else:
event.reply(
event.create_response("The function returned no value."))
return
except Exception as e:
error = FunctionError(e, self, function_obj, event)
e_str = (str(e)[:250] + "..") if len(str(e)) > 250 else str(e)
event.reply(
event.create_response(
"Function failed with error message: {}".format(e_str)))
logger.error(error.get_log_line())
return
