class Bundler::ParallelInstaller::SpecInstallation

def all_dependencies
  @spec.dependencies
end

def dependencies
  @dependencies ||= begin
    all_dependencies.reject {|dep| ignorable_dependency? dep }
  end
end

def dependencies_installed?(all_specs)
  installed_specs = all_specs.select(&:installed?).map(&:name)
  dependencies.all? {|d| installed_specs.include? d.name }
end

def enqueued?
  state == :enqueued
end

def failed?
  state == :failed
end

def has_post_install_message?
  !post_install_message.empty?
end

def ignorable_dependency?(dep)
  dep.type == :development || dep.name == @name
end

def initialize(spec)
  @spec = spec
  @name = spec.name
  @state = :none
  @post_install_message = ""
  @error = nil
end

def installation_attempted?
  installed? || failed?
end

def installed?
  state == :installed
end

def missing_lockfile_dependencies(all_spec_names)
  deps = all_dependencies.reject {|dep| ignorable_dependency? dep }
  deps.reject {|dep| all_spec_names.include? dep.name }
end

def ready_to_enqueue?
  !enqueued? && !installation_attempted?
end

def to_s
  "#<#{self.class} #{@spec.full_name} (#{state})>"
end