module Slather::CoverageService::Coveralls

def coverage_file_class
  Slather::CoverallsCoverageFile
end

def coveralls_api_jobs_path
  "https://coveralls.io/api/v1/jobs"
end

def coveralls_coverage_data
  if ci_service == :travis_ci
    if travis_job_id
      {
        :service_job_id => travis_job_id,
        :service_name => "travis-ci",
        :source_files => coverage_files.map(&:as_json)
      }.to_json
    else
      raise StandardError, "Environment variable `TRAVIS_JOB_ID` not set. Is this running on a travis build?"
    end
  else
    raise StandardError, "No support for ci named #{ci_service}"
  end
end

def post
  f = File.open('coveralls_json_file', 'w+')
  begin
    f.write(coveralls_coverage_data)
    f.close
    `curl -s --form json_file=@#{f.path} #{coveralls_api_jobs_path}`
  rescue StandardError => e
    FileUtils.rm(f)
    raise e
  end
  FileUtils.rm(f)
end

def travis_job_id
  ENV['TRAVIS_JOB_ID']
end