class Github::Client::Issues::Labels

def add(*args)
  arguments(args, required: [:user, :repo, :number])
  params = arguments.params
  params['data'] = arguments.remaining unless arguments.remaining.empty?
  post_request("/repos/#{arguments.user}/#{arguments.repo}/issues/#{arguments.number}/labels", params)
end

def create(*args)
  arguments(args, required: [:user, :repo]) do
    permit VALID_LABEL_INPUTS
    assert_required VALID_LABEL_INPUTS
  end
  post_request("/repos/#{arguments.user}/#{arguments.repo}/labels", arguments.params)
end

def delete(*args)
  arguments(args, required: [:user, :repo, :label_name])
  delete_request("/repos/#{arguments.user}/#{arguments.repo}/labels/#{arguments.label_name}", arguments.params)
end

def get(*args)
  arguments(args, required: [:user, :repo, :label_name])
  params = arguments.params
  get_request("/repos/#{arguments.user}/#{arguments.repo}/labels/#{arguments.label_name}", params)
end

def list(*args)
  arguments(args, required: [:user, :repo])
  params = arguments.params
  user = arguments.user
  repo = arguments.repo
  response = if (milestone_id = params.delete('milestone_id'))
    get_request("/repos/#{user}/#{repo}/milestones/#{milestone_id}/labels", params)
  elsif (issue_id = params.delete('issue_id'))
    get_request("/repos/#{user}/#{repo}/issues/#{issue_id}/labels", params)
  else
    get_request("/repos/#{user}/#{repo}/labels", params)
  end
  return response unless block_given?
  response.each { |el| yield el }
end

def remove(*args)
  arguments(args, required: [:user, :repo, :number])
  params = arguments.params
  user   = arguments.user
  repo   = arguments.repo
  number = arguments.number
  if (label_name = params.delete('label_name'))
    delete_request("/repos/#{user}/#{repo}/issues/#{number}/labels/#{label_name}", params)
  else
    delete_request("/repos/#{user}/#{repo}/issues/#{number}/labels", params)
  end
end

def replace(*args)
  arguments(args, required: [:user, :repo, :number])
  params = arguments.params
  params['data'] = arguments.remaining unless arguments.remaining.empty?
  put_request("/repos/#{arguments.user}/#{arguments.repo}/issues/#{arguments.number}/labels", params)
end

def update(*args)
  arguments(args, required: [:user, :repo, :label_name]) do
    permit VALID_LABEL_INPUTS
    assert_required VALID_LABEL_INPUTS
  end
  patch_request("/repos/#{arguments.user}/#{arguments.repo}/labels/#{arguments.label_name}", arguments.params)
end