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Versions: 7
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Stored size: 1.91 KB
Contents
module Marvin
# A Simple Marvin handler based on processing
# commands, similar in design to MatzBot.
class CommandHandler < Base
class_inheritable_accessor :exposed_methods, :command_prefix
self.command_prefix = ""
self.exposed_methods = []
class << self
def exposes(*args)
self.exposed_methods ||= []
self.exposed_methods += args.map { |a| a.to_sym }.flatten
end
end
on_event :incoming_message do
logger.debug "Incoming message"
check_for_commands
end
def check_for_commands
data, command = nil, nil
if self.from_channel?
logger.debug "Processing command in channel"
split_message = options.message.split(" ", 3)
prefix = split_message.shift
# Return if in channel and it isn't address to the user.
return unless prefix == "#{self.client.nickname}:"
command, data = split_message # Set remaining.
else
command, data = options.message.split(" ", 2)
end
# Double check for sanity
return if command.blank?
command_name = extract_command_name(command)
unless command_name.nil?
logger.debug "Command Exists - processing"
# Dispatch the command.
self.send(command_name, data.to_a) if self.respond_to?(command_name)
end
end
def extract_command_name(command)
prefix_length = self.command_prefix.to_s.length
has_prefix = command[0...prefix_length] == self.command_prefix.to_s
logger.debug "Debugging, prefix is #{prefix_length} characters, has prefix? = #{has_prefix}"
if has_prefix
# Normalize the method name
method_name = command[prefix_length..-1].to_s.underscore.to_sym
logger.debug "Computed method name is #{method_name.inspect}"
return method_name if self.exposed_methods.to_a.include?(method_name)
end
end
end
end
Version data entries
7 entries across 7 versions & 2 rubygems