class Dependabot::Linguist::Repository

# File lib/dependabot/linguist/repository.rb, line 19
def initialize(repo_path, repo_name, ignore_linguist: 0, verbose: false)
  @repo_path = repo_path.chomp.delete_suffix("/") unless repo_path.nil?
  # If repo_path is nil, say that the current workdir is the path.
  @repo_path ||= "."
  @repo_name = repo_name
  begin
    @repo = Rugged::Repository.new(@repo_path)
  rescue Rugged::RepositoryError, Rugged::OSError
    # Either the folder doesn't exist, or it does and doesn't have a `.git/`
    # Try to clone into it, if it's public
    puts "Repository #{@repo_name} not found at #{@repo_path}; falling back to cloning public url"
    # If the current path isn't empty, make a temporary repository path.
    @repo_path = "./tmp/#{@repo_name}" unless Dir.empty? @repo_path
    puts "Cloning https://github.com/#{@repo_name}.git into #{@repo_path}"
    @repo = Rugged::Repository.clone_at("https://github.com/#{@repo_name}.git", @repo_path)
  end
  @ignore_linguist = ignore_linguist.clamp(0, 2)
  @verbose = verbose
  @linguist = ::Linguist::Repository.new(@repo, @repo.head.target_id)
end

# File lib/dependabot/linguist/repository.rb, line 163
def all_directories
  # /**/*/ rather than /**/ would remove the base path, but delete_prefix
  # will also remove it, so it needs to be specially added.
  @all_directories ||= (["/"] | Dir.glob("#{@repo_path}/**/*/").map { |subpath| subpath.delete_prefix(@repo_path).delete_suffix("/") })
end

# File lib/dependabot/linguist/repository.rb, line 186
def all_ecosystem_classes
  @all_ecosystem_classes ||= PACKAGE_ECOSYSTEM_TO_FILE_FETCHERS_REGISTRY_KEY.transform_values { |k, v| [k, Dependabot::FileFetchers.for_package_manager(v)] }
end

# File lib/dependabot/linguist/repository.rb, line 170
def all_sources
  @all_sources ||= all_directories.collect { |directory| Dependabot::Source.new(provider: "github", repo: @repo_name, directory: directory) }
end

# File lib/dependabot/linguist/repository.rb, line 193
def directories_per_ecosystem_validated_by_dependabot
  @directories_per_ecosystem_validated_by_dependabot ||= nil
  if @directories_per_ecosystem_validated_by_dependabot.nil?
    enable_options = { kubernetes_updates: true }
    @directories_per_ecosystem_validated_by_dependabot = {}
    case @ignore_linguist
    when 1
      # If ignore linguist is 1, we rely on it to block "vendored"
      # files from the sources, but we run all dependabot classes
      sources = linguist_sources.values
      ecosystem_classes = all_ecosystem_classes
    when 2
      # If ignore linguist is 2, we just don't use it at all.
      sources = all_sources
      ecosystem_classes = all_ecosystem_classes
    else # when 0 is part of this.
      # If ignore linguist is 0, we don't ignore it and rely
      # on it to find sources and pick dependabot classes
      sources = nil
      ecosystem_classes = file_fetcher_class_per_package_ecosystem
    end
    ecosystem_classes.each do |package_ecosystem, file_fetcher_class|
      @directories_per_ecosystem_validated_by_dependabot[package_ecosystem] = []
      puts "Spawning class instances for #{package_ecosystem}, in repo #{@repo_path}, class #{file_fetcher_class}" if @verbose
      sources = directories_per_package_ecosystem[package_ecosystem].collect { |directories| linguist_sources[directories] } unless [1, 2].any? @ignore_linguist
      sources.each do |source|
        fetcher = file_fetcher_class.new(source: source, credentials: [], repo_contents_path: @repo_path, options: enable_options)
        begin
          # https://github.com/dependabot/dependabot-core/blob/v0.303.0/common/lib/dependabot/file_fetchers/base.rb#L136-L148
          unless fetcher.files.map(&:name).empty?
            @directories_per_ecosystem_validated_by_dependabot[package_ecosystem] |= [source.directory]
            puts "-- Dependency files FOUND for package-ecosystem #{package_ecosystem} at #{source.directory}; #{fetcher.files.map(&:name)}" if @verbose
          end
        rescue Dependabot::SharedHelpers::HelperSubprocessFailed => e
          puts "-- Caught a DependabotError, #{e.class}, for package-ecosystem #{package_ecosystem} at #{source.directory}: Context #{e.error_context} + Message :: #{e.message}" if @verbose # rubocop:disable Layout/LineLength
        rescue Dependabot::DependabotError => e
          # Most of these will be Dependabot::DependencyFileNotFound
          # or Dependabot::PathDependenciesNotReachable
          puts "-- Caught a DependabotError, #{e.class}, for package-ecosystem #{package_ecosystem} at #{source.directory}: Message :: #{e.message}" if @verbose
        end
      end
    end
    @directories_per_ecosystem_validated_by_dependabot = @directories_per_ecosystem_validated_by_dependabot.delete_if { |_, v| v.empty? }.sort.to_h
  end
  @directories_per_ecosystem_validated_by_dependabot
end

# File lib/dependabot/linguist/repository.rb, line 69
def directories_per_linguist_language
  @directories_per_linguist_language ||= linguist_cache.keys.to_h { |source_file_path|
    # create the map "<file_path>" => "<folder_path>"
    [source_file_path, "/#{source_file_path.slice(0, source_file_path.rindex("/") || 0)}"]
  }.group_by { |source_file_path, _source_folder_path|
    # create the map "<Language>" => [["<file_path>", "<folder_path>"], ...]
    linguist_cache[source_file_path][0]
  }.to_h { |linguist_language, file_then_folder_arr|
    # create the map "<Language>" => ["<folder_path>", ...] by taking the
    # (&:last) out of each ["<file_path>", "<folder_path>"] pair, uniquely
    [linguist_language, file_then_folder_arr.map(&:last).uniq]
  }
end

# File lib/dependabot/linguist/repository.rb, line 122
def directories_per_package_ecosystem
  @directories_per_package_ecosystem ||= nil
  if @directories_per_package_ecosystem.nil?
    @directories_per_package_ecosystem = {}
    directories_per_package_manager.each do |dependabot_package_manager, source_directories|
      Dependabot::Linguist.package_managers_to_package_ecosystems([dependabot_package_manager]).each do |dependabot_package_ecosystem|
        if @directories_per_package_ecosystem[dependabot_package_ecosystem].nil?
          @directories_per_package_ecosystem[dependabot_package_ecosystem] = []
        end
        @directories_per_package_ecosystem[dependabot_package_ecosystem] |= source_directories
      end
    end
  end
  @directories_per_package_ecosystem
end

# File lib/dependabot/linguist/repository.rb, line 89
def directories_per_package_manager
  @directories_per_package_manager ||= {}.tap do |this|
    directories_per_linguist_language.each do |linguist_language, source_directories|
      Dependabot::Linguist.linguist_languages_to_package_managers([linguist_language]).each do |dependabot_package_manager|
        this[dependabot_package_manager] = (this[dependabot_package_manager] || []) | source_directories
      end
    end
    # GitHub Actions must be added seperately..
    # if any yaml exist in the workflows folder, it needs to be added at "/"
    if (directories_per_linguist_language["YAML"] || []).any? "/.github/workflows"
      this[PackageManagers::GITHUB_ACTIONS] = ["/"]
    end
    # Because actions are handled like this we also need to regexp for /\/action\.ya?ml$/
    (files_per_linguist_language["YAML"] || []).each do |source_file_path|
      # File paths aren't cleaned from linguist, so prepend the '/' here.
      # This lets it match the \/ before action.ya?ml if it's in the root dir.
      # /(?<dir>\S*)\/(?<file>action\.ya?ml)$/
      action_match = "/#{source_file_path}".match %r{(?<dir>\S*)/(?<file>action\.ya?ml)$}
      if action_match
        # But that also means we then need to check if dir is empty, if it's the root dir
        if action_match[:dir].empty?
          this[PackageManagers::GITHUB_ACTIONS] = (this[PackageManagers::GITHUB_ACTIONS] || []) | ["/"]
        else
          this[PackageManagers::GITHUB_ACTIONS] = (this[PackageManagers::GITHUB_ACTIONS] || []) | [action_match[:dir]]
        end
      end
    end
  end
end

# File lib/dependabot/linguist/repository.rb, line 141
def file_fetcher_class_per_package_ecosystem
  @file_fetcher_class_per_package_ecosystem ||= nil
  if @file_fetcher_class_per_package_ecosystem.nil?
    @file_fetcher_class_per_package_ecosystem = {}
    directories_per_package_ecosystem.each_key do |possible_ecosystem|
      @file_fetcher_class_per_package_ecosystem[possible_ecosystem] =
        Dependabot::FileFetchers.for_package_manager(
          Dependabot::Linguist::PACKAGE_ECOSYSTEM_TO_FILE_FETCHERS_REGISTRY_KEY[possible_ecosystem]
        )
    end
  end
  @file_fetcher_class_per_package_ecosystem
end

# File lib/dependabot/linguist/repository.rb, line 60
def files_per_linguist_language
  @files_per_linguist_language ||= linguist_cache.keys.group_by { |source_file_path|
    # create the map "<Language>" => ["<file_path>", ...]
    linguist_cache[source_file_path][0]
  }
end

# File lib/dependabot/linguist/repository.rb, line 48
def linguist_cache
  @linguist_cache ||= @linguist.cache
end

# File lib/dependabot/linguist/repository.rb, line 176
def linguist_directories
  @linguist_directories ||= directories_per_package_ecosystem.values.flatten.uniq
end

# File lib/dependabot/linguist/repository.rb, line 41
def linguist_languages
  @linguist_languages ||= @linguist.languages
end

# File lib/dependabot/linguist/repository.rb, line 182
def linguist_sources
  @linguist_sources ||= linguist_directories.to_h { |directory| [directory, Dependabot::Source.new(provider: "github", repo: @repo_name, directory: directory)] }
end

# File lib/dependabot/linguist/repository.rb, line 156
def put_discovery_info
  puts "List of languages: #{directories_per_linguist_language.keys}"
  puts "List of package managers: #{directories_per_package_manager.keys}"
  puts "List of package ecosystems: #{directories_per_package_ecosystem.keys}"
end