require 'pact_broker/repositories'
require 'pact_broker/logging'
require 'pact_broker/domain/index_item'

module PactBroker

  module Index
    class Service

      extend PactBroker::Repositories
      extend PactBroker::Services
      extend PactBroker::Logging

      def self.find_index_items options = {}
        pact_repository
          .find_latest_pacts
          .collect { | pact| build_index_item_rows(pact, tags_for(pact, options)) }
          .flatten
      end

      def self.tags_for(pact, options)
        if options[:tags] == true
          tag_service.find_all_tag_names_for_pacticipant(pact.consumer_name)
        elsif options[:tags].is_a?(Array)
          options[:tags]
        else
          []
        end
      end

      def self.build_index_item_rows(pact, tags)
        index_items = [build_latest_pact_index_item(pact, tags)]
        tags.each do | tag |
          index_items << build_index_item_for_tagged_pact(pact, tag)
        end
        index_items.compact
      end

      def self.build_latest_pact_index_item pact, tags
        latest_verification = verification_service.find_latest_verification_for(pact.consumer, pact.provider)
        webhooks = webhook_service.find_by_consumer_and_provider pact.consumer, pact.provider
        triggered_webhooks = webhook_service.find_latest_triggered_webhooks pact.consumer, pact.provider
        tag_names = pact.consumer_version_tag_names.select{ |name| tags.include?(name) }
        PactBroker::Domain::IndexItem.create pact.consumer, pact.provider, pact, true, latest_verification, webhooks, triggered_webhooks, tag_names
      end

      def self.build_index_item_for_tagged_pact latest_pact, tag
        pact = pact_service.find_latest_pact consumer_name: latest_pact.consumer_name, provider_name: latest_pact.provider_name, tag: tag
        return nil unless pact
        return nil if pact.id == latest_pact.id
        verification = verification_repository.find_latest_verification_for pact.consumer_name, pact.provider_name, tag
        PactBroker::Domain::IndexItem.create pact.consumer, pact.provider, pact, false, verification, [], [], [tag]
      end
    end
  end
end