class Gitlab::Seeder::Builds
  BUILD_STATUSES = %w(running pending success failed canceled)

  def initialize(project)
    @project = project
  end

  def seed!
    ci_commits.each do |ci_commit|
      build = Ci::Build.new(build_attributes_for(ci_commit))

      FileUtils.copy(artifacts_path, artifacts_cache_file_path)
      File.open(artifacts_cache_file_path, 'r') do |file|
        build.artifacts_file = file
        build.artifacts_metadata = artifacts_metadata
      end

      begin
        build.save!
        print '.'
      rescue ActiveRecord::RecordInvalid
        print 'F'
      end
    end
  end

  def ci_commits
    commits = @project.repository.commits('master', nil, 5)
    commits_sha = commits.map { |commit| commit.raw.id }
    commits_sha.map do |sha|
      @project.ensure_ci_commit(sha)
    end
  rescue
    []
  end

  def build_attributes_for(ci_commit)
    { name: 'test build', commands: "$ build command",
      stage: 'test', stage_idx: 1, ref: 'master',
      user_id: build_user, gl_project_id: @project.id,
      status: build_status, commit_id: ci_commit.id,
      created_at: Time.now, updated_at: Time.now }
  end

  def build_user
    @project.team.users.sample
  end

  def build_status
    BUILD_STATUSES.sample
  end

  def artifacts_path
    Rails.root + 'spec/fixtures/ci_build_artifacts.tar.gz'
  end

  def artifacts_cache_file_path
    artifacts_path.to_s.gsub('ci_', "p#{@project.id}_")
  end

  def artifacts_metadata
    return @artifacts_metadata if @artifacts_metadata
    logs, _exit_status = Gitlab::Popen.popen(%W(tar tzf #{artifacts_path}))
    @artifacts_metadata = logs.split(/\n/)
  end
end

Gitlab::Seeder.quiet do
  Project.all.sample(10).each do |project|
    project_builds = Gitlab::Seeder::Builds.new(project)
    project_builds.seed!
  end
end
