class CodeClimate::TestReporter::Formatter

def format(results)
  simplecov_results = results.map do |command_name, data|
    SimpleCov::Result.from_hash(command_name => data)
  end
  simplecov_result =
    if simplecov_results.size == 1
      simplecov_results.first
    else
      merge_results(simplecov_results)
    end
  payload = to_payload(simplecov_result)
  PayloadValidator.validate(payload)
  payload
end

def merge_results(results)
  merged = {}
  results.each do |result|
    merged = result.original_result.merge_resultset(merged)
  end
  result = SimpleCov::Result.new(merged)
  result.command_name = results.map(&:command_name).sort.join(", ")
  result
end

def partial?
  CodeClimate::TestReporter.tddium?
end

def round(numeric, precision)
  Float(numeric).round(precision)
end

def to_payload(result)
  totals = Hash.new(0)
  source_files = result.files.map do |file|
    totals[:total] += file.lines.count
    totals[:covered] += file.covered_lines.count
    totals[:missed] += file.missed_lines.count
    # Set coverage for all skipped lines to nil
    file.skipped_lines.each do |skipped_line|
      file.coverage[skipped_line.line_number - 1] = nil
    end
    {
      name:             ShortenFilename.new(file.filename).short_filename,
      blob_id:          CalculateBlob.new(file.filename).blob_id,
      coverage:         file.coverage.to_json,
      covered_percent:  round(file.covered_percent, 2),
      covered_strength: round(file.covered_strength, 2),
      line_counts: {
        total:    file.lines.count,
        covered:  file.covered_lines.count,
        missed:   file.missed_lines.count,
      },
    }
  end
  {
    repo_token:       ENV["CODECLIMATE_REPO_TOKEN"],
    source_files:     source_files,
    run_at:           result.created_at.to_i,
    covered_percent:  result.source_files.covered_percent.round(2),
    covered_strength: result.source_files.covered_strength.round(2),
    line_counts:      totals,
    partial:          partial?,
    git: Git.info,
    environment: {
      pwd:            Dir.pwd,
      rails_root:     (Rails.root.to_s rescue nil),
      simplecov_root: ::SimpleCov.root,
      gem_version:    VERSION,
    },
    ci_service: CodeClimate::TestReporter.ci_service_data,
  }
end