# == Schema Information
#
# Table name: services
#
#  id         :integer          not null, primary key
#  type       :string(255)
#  title      :string(255)
#  project_id :integer          not null
#  created_at :datetime
#  updated_at :datetime
#  active     :boolean          default(FALSE), not null
#  properties :text
#

class SlackService < Service
  prop_accessor :webhook
  boolean_accessor :notify_only_broken_builds
  validates :webhook, presence: true, if: :activated?

  default_value_for :notify_only_broken_builds, true

  def title
    'Slack'
  end

  def description
    'A team communication tool for the 21st century'
  end

  def to_param
    'slack'
  end

  def help
    'Visit https://www.slack.com/services/new/incoming-webhook. Then copy link and save project!' unless webhook.present?
  end

  def fields
    [
      { type: 'text', name: 'webhook', label: 'Webhook URL', placeholder: '' },
      { type: 'checkbox', name: 'notify_only_broken_builds', label: 'Notify only broken builds' }
    ]
  end

  def can_execute?(build)
    return if build.allow_failure?

    commit = build.commit
    return unless commit
    return unless commit.builds_without_retry.include?(build)

    case commit.status.to_sym
    when :failed
      true
    when :success
      true unless notify_only_broken_builds?
    else
      false
    end
  end

  def execute(build)
    message = SlackMessage.new(build.commit)
    options = default_options.merge(
      color: message.color,
      fallback: message.fallback,
      attachments: message.attachments
    )
    SlackNotifierWorker.perform_async(webhook, message.pretext, options)
  end

  private

  def default_options
    {
      username: 'GitLab CI'
    }
  end
end
