module Coveralls

def noisy?
  ENV["COVERALLS_NOISY"] || (defined?(@noisy) && @noisy)
end

def push!
  require 'simplecov'
  result = ::SimpleCov::ResultMerger.merged_result
  Coveralls::SimpleCov::Formatter.new.format result
end

def setup!
  # Try to load up SimpleCov.
  @@adapter = nil
  if defined?(::SimpleCov)
    @@adapter = :simplecov
  else
    begin
      require 'simplecov'
      @@adapter = :simplecov if defined?(::SimpleCov)
    rescue
    end
  end
  # Load the appropriate adapter.
  if @@adapter == :simplecov
    ::SimpleCov.formatter = Coveralls::SimpleCov::Formatter
    Coveralls::Output.puts("[Coveralls] Set up the SimpleCov formatter.", :color => "green")
  else
    Coveralls::Output.puts("[Coveralls] Couldn't find an appropriate adapter.", :color => "red")
  end
end

def should_run?
  # Fail early if we're not on a CI
  unless will_run?
    Coveralls::Output.puts("[Coveralls] Outside the CI environment, not sending data.", :color => "yellow")
    return false
  end
  if ENV["COVERALLS_RUN_LOCALLY"] || (defined?(@run_locally) && @run_locally)
    Coveralls::Output.puts("[Coveralls] Creating a new job on Coveralls from local coverage results.", :color => "cyan")
  end
  true
end

def start!(simplecov_setting = 'test_frameworks', &block)
  if @@adapter == :simplecov
    ::SimpleCov.add_filter 'vendor'
    if simplecov_setting
      Coveralls::Output.puts("[Coveralls] Using SimpleCov's '#{simplecov_setting}' settings.", :color => "green")
      if block_given?
        ::SimpleCov.start(simplecov_setting) { instance_eval(&block)}
      else
        ::SimpleCov.start(simplecov_setting)
      end
    elsif block
      Coveralls::Output.puts("[Coveralls] Using SimpleCov settings defined in block.", :color => "green")
      ::SimpleCov.start { instance_eval(&block) }
    else
      Coveralls::Output.puts("[Coveralls] Using SimpleCov's default settings.", :color => "green")
      ::SimpleCov.start
    end
  end
end

def wear!(simplecov_setting=nil, &block)
  setup!
  start! simplecov_setting, &block
end

def wear_merged!(simplecov_setting=nil, &block)
  require 'simplecov'
  @@adapter = :simplecov
  ::SimpleCov.formatter = NilFormatter
  start! simplecov_setting, &block
end

def will_run?
  ENV["CI"] || ENV["JENKINS_URL"] || ENV['TDDIUM'] ||
    ENV["COVERALLS_RUN_LOCALLY"] || (defined?(@testing) && @testing)
end