Class: Jabot::Commands

Inherits:
Object
  • Object
show all
Defined in:
lib/jabot/commands.rb

Defined Under Namespace

Classes: CommandNotExists

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Commands

Returns a new instance of Commands.



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# File 'lib/jabot/commands.rb', line 8

def initialize
  @commands_list = {}
end

Instance Method Details

#add_command(name, &block) ⇒ Object 



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# File 'lib/jabot/commands.rb', line 12

def add_command(name, &block)
  @commands_list[name] = block unless command_exists? name
end

#available_commands ⇒ Object 



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# File 'lib/jabot/commands.rb', line 41

def available_commands
  @commands_list.map do |key, value|
    {
        name: key.to_s,
        args: value.parameters.map { |item| item[1] }.join(', ')
    }
  end
end

#command_exists?(command_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jabot/commands.rb', line 16

def command_exists?(command_name)
  @commands_list.include? command_name
end

#parse(command_line) ⇒ Object 



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# File 'lib/jabot/commands.rb', line 33

def parse(command_line)
  args = command_line.split
  {
      :name => args.shift.to_sym,
      :args => args
  }
end

#run(command_line) ⇒ Object 



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# File 'lib/jabot/commands.rb', line 20

def run(command_line)
  c = parse command_line
  unless command_exists? c[:name].downcase
    raise CommandNotExists, "command '#{c[:name]}' not found"
  end

  begin
    @commands_list[c[:name].downcase].call(*c[:args])
  rescue
    'Error while executing command'
  end
end