class IamSure

# File lib/iamsure.rb, line 9
def initialize(obj)
  @obj = obj
end

# File lib/iamsure.rb, line 13
def self.of(obj)
  new(obj)
end

# File lib/iamsure.rb, line 27
def exist(as=:file)
  raise ArgumentError.new 'Argument cannot be nil' if as.nil?
  raise ArgumentError.new "Argument should be Hash as 'as: :file' or 'as: :dir'" if not as.is_a?(Hash)

  if as.has_key?(:as) && as[:as] == :file
    raise ArgumentError.new "File (#{ @obj }) does not exist!" if not File.file?(@obj)
  elsif as.has_key?(:as) && as[:as] == :dir
    raise ArgumentError.new "Dir (#{ @obj }) does not exist!" if not File.directory?(@obj)
  else
    raise ArgumentError.new "Argument (#{ as }) is not valid!"
  end
  self
end

# File lib/iamsure.rb, line 50
def get(initiator=nil)
  return @obj if initiator.nil?
  return initiator.init(@obj) if initiator.is_a?(Iamsure::Initiator)
  raise ArgumentError.new "initiator should be empty or inherited from Initiator"
end

# File lib/iamsure.rb, line 22
def not_empty(msg='')
  raise ArgumentError.new msg if @obj.nil? || @obj.empty?
  self
end

# File lib/iamsure.rb, line 17
def not_nil(msg='')
  raise ArgumentError.new msg if @obj.nil?
  self
end

# File lib/iamsure.rb, line 41
def unpack(unpacker)
  raise ArgumentError.new "Argument cannot be nil!" if unpacker.nil?
  raise ArgumentError.new "Argument should be Unpacker!" unless unpacker.is_a?(Iamsure::Unpacker)

  @obj = unpacker.unpack(@obj)

  self
end