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path: root/lib/gitlab/chat_commands/presenters/base.rb
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module Gitlab::ChatCommands::Presenters
  class Base
    include Gitlab::Routing.url_helpers

    def initialize(resource = nil)
      @resource = resource
    end

    def display_errors
      message = header_with_list("The action was not successful, because:", @resource.errors.full_messages)

      ephemeral_response(text: message)
    end

    private

    def header_with_list(header, items)
      message = [header]

      items.each do |item|
        message << "- #{item}"
      end

      message.join("\n")
    end

    def ephemeral_response(message)
      response = {
        response_type: :ephemeral,
        status: 200
      }.merge(message)

      format_response(response)
    end

    def in_channel_response(message)
      response = {
        response_type: :in_channel,
        status: 200
      }.merge(message)

      format_response(response)
    end

    def format_response(response)
      response[:text] = format(response[:text]) if response.has_key?(:text)

      if response.has_key?(:attachments)
        response[:attachments].each do |attachment|
          attachment[:pretext] = format(attachment[:pretext]) if attachment[:pretext]
          attachment[:text] = format(attachment[:text]) if attachment[:text]
        end
      end

      response
    end

    # Convert Markdown to slacks format
    def format(string)
      Slack::Notifier::LinkFormatter.format(string)
    end

    def resource_url
      url_for(
        [
          @resource.project.namespace.becomes(Namespace),
          @resource.project,
          @resource
        ]
      )
    end
  end
end