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path: root/lib/gitlab/project_search_results.rb
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module Gitlab
  class ProjectSearchResults < SearchResults
    attr_reader :project, :repository_ref

    def initialize(current_user, project, query, repository_ref = nil)
      @current_user = current_user
      @project = project
      @repository_ref = repository_ref.presence || project.default_branch
      @query = query
    end

    def objects(scope, page = nil)
      case scope
      when 'notes'
        notes.page(page).per(per_page)
      when 'blobs'
        Kaminari.paginate_array(blobs).page(page).per(per_page)
      when 'wiki_blobs'
        Kaminari.paginate_array(wiki_blobs).page(page).per(per_page)
      when 'commits'
        Kaminari.paginate_array(commits).page(page).per(per_page)
      else
        super
      end
    end

    def blobs_count
      @blobs_count ||= blobs.count
    end

    def notes_count
      @notes_count ||= notes.count
    end

    def wiki_blobs_count
      @wiki_blobs_count ||= wiki_blobs.count
    end

    def commits_count
      @commits_count ||= commits.count
    end

    def self.parse_search_result(result)
      ref = nil
      filename = nil
      basename = nil
      startline = 0

      result.each_line.each_with_index do |line, index|
        if line =~ /^.*:.*:\d+:/
          ref, filename, startline = line.split(':')
          startline = startline.to_i - index
          extname = Regexp.escape(File.extname(filename))
          basename = filename.sub(/#{extname}$/, '')
          break
        end
      end

      data = ""

      result.each_line do |line|
        data << line.sub(ref, '').sub(filename, '').sub(/^:-\d+-/, '').sub(/^::\d+:/, '')
      end

      FoundBlob.new(
        filename: filename,
        basename: basename,
        ref: ref,
        startline: startline,
        data: data
      )
    end

    def single_commit_result?
      commits_count == 1 && total_result_count == 1
    end

    def total_result_count
      issues_count + merge_requests_count + milestones_count + notes_count + blobs_count + wiki_blobs_count + commits_count
    end

    private

    def blobs
      return [] unless Ability.allowed?(@current_user, :download_code, @project)

      @blobs ||= Gitlab::FileFinder.new(project, repository_ref).find(query)
    end

    def wiki_blobs
      return [] unless Ability.allowed?(@current_user, :read_wiki, @project)

      @wiki_blobs ||= begin
        if project.wiki_enabled? && query.present?
          project_wiki = ProjectWiki.new(project)

          unless project_wiki.empty?
            project_wiki.search_files(query)
          else
            []
          end
        else
          []
        end
      end
    end

    def notes
      @notes ||= NotesFinder.new(project, @current_user, search: query).execute.user.order('updated_at DESC')
    end

    def commits
      @commits ||= find_commits(query)
    end

    def find_commits(query)
      return [] unless Ability.allowed?(@current_user, :download_code, @project)

      commits = find_commits_by_message(query)
      commit_by_sha = find_commit_by_sha(query)
      commits |= [commit_by_sha] if commit_by_sha
      commits
    end

    def find_commits_by_message(query)
      project.repository.find_commits_by_message(query)
    end

    def find_commit_by_sha(query)
      key = query.strip
      project.repository.commit(key) if Commit.valid_hash?(key)
    end

    def project_ids_relation
      project
    end
  end
end