ossert/ossert

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lib/ossert/fetch/rubygems.rb

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# frozen_string_literal: true

module Ossert
  module Fetch
    class Rubygems
      attr_reader :client, :project

      extend Forwardable
      def_delegators :project, :agility, :community, :meta

      GITHUB_REPO_REGEX = %r{github.com/([a-zA-Z0-9\.\_\-]+)/([a-zA-Z0-9\.\_\-]+)}.freeze

      def initialize(project)
        @client = SimpleClient.new('https://rubygems.org/api/v1/')
        @project = project
      end

      def info
        @info ||= client.get("gems/#{project.rubygems_alias}.json")
      end

      def version_info
        @version_info ||= client.get("versions/#{project.rubygems_alias}.json")
      end

      def releases
        @releases ||= client.get("versions/#{project.rubygems_alias}.json")
      end

      def reversed_dependencies
        client.get("gems/#{project.rubygems_alias}/reverse_dependencies.json")
      end

      def process_meta
        meta[:authors] = info[:authors]
        meta[:description] = info[:info]
        meta[:current_version] = info[:version]
      end

      def process_links
        meta.merge!(
          homepage_url: info[:homepage_uri],
          docs_url: info[:documentation_uri],
          wiki_url: info[:wiki_uri],
          source_url: info[:source_code_uri],
          issue_tracker_url: info[:bug_tracker_uri],
          mailing_list_url: info[:mailing_list_uri],
          rubygems_url: info[:project_uri],
          github_url: "https://github.com/#{project.github_alias}" # or exception!
        )
      end

      def process_github_alias
        return unless project.github_alias.blank?

        match = info[:source_code_uri].try(:match, GITHUB_REPO_REGEX) ||
                info[:homepage_uri].try(:match, GITHUB_REPO_REGEX)
        project.github_alias = match ? "#{match[1]}/#{match[2]}" : NO_GITHUB_NAME
      end

      def process_releases
        releases.each do |release|
          agility.total.releases_total_rg << release[:number]
          agility.quarters[release[:created_at]].releases_total_rg << release[:number]
        end
      end

      def process_dependencies
        agility.total.dependencies = Set.new(info[:dependencies][:runtime]).to_a
        community.total.dependants = Set.new(reversed_dependencies).to_a
      end

      def process
        process_github_alias

        process_dependencies
        process_releases

        process_meta
        process_links
      end
    end
  end
end