module Fastlane
  module Actions
    module SharedValues
      SLATHER_CUSTOM_VALUE = :SLATHER_CUSTOM_VALUE
    end

    class SlatherAction < Action

      ARGS_MAP = {
        build_directory: "--build-directory",
        input_format: "--input-format",
        scheme: "--scheme",
        buildkite: "--buildkite",
        jenkins: "--jenkins",
        travis: "--travis",
        circleci: "--circleci",
        coveralls: "--coveralls",
        simple_output: "--simple-output",
        gutter_json: "--gutter-json",
        cobertura_xml: "--cobertura-xml",
        html: "--html",
        show: "--show",
        source_directory: "--source-directory",
        output_directory: "--output-directory",
        binary_basename: "--binary-basename",
        binary_file: "--binary-file",
        ignore: "--ignore"
      }.freeze

      def self.run(params)
        # This will fail if using Bundler. Skip the check rather than needing to
        # require bundler
        unless params[:use_bundle_exec]
          Actions.verify_gem!('slather')
        end

        command = build_command(params)
        sh command
      end

      def self.build_command(params)
        command = []
        command.push("bundle exec") if params[:use_bundle_exec]
        command << "slather coverage"

        ARGS_MAP.each do |key, cli_param|
          cli_value = params[key]
          if cli_value
            if cli_value.kind_of?(TrueClass)
              command << cli_param
            elsif cli_value.kind_of?(String)
              command << cli_param
              command << cli_value.shellescape
            elsif cli_value.kind_of?(Array)
              command << cli_value.map { |path| "#{cli_param} #{path.shellescape}" }
            end
          else
            next
          end
        end

        command << params[:proj].shellescape
        command.join(" ")
      end

      #####################################################
      # @!group Documentation
      #####################################################

      def self.description
        "Use slather to generate a code coverage report"
      end

      def self.details
        return <<-eos
Slather works with multiple code coverage formats including Xcode7 code coverage.
Slather is available at https://github.com/SlatherOrg/slather
        eos
      end

      def self.available_options
        [
          FastlaneCore::ConfigItem.new(key: :build_directory,
                                       env_name: "FL_SLATHER_BUILD_DIRECTORY", # The name of the environment variable
                                       description: "The location of the build output", # a short description of this parameter
                                       optional: true
                                      ),
          FastlaneCore::ConfigItem.new(key: :proj,
                                       env_name: "FL_SLATHER_PROJ", # The name of the environment variable
                                       description: "The project file that slather looks at", # a short description of this parameter
                                       verify_block: proc do |value|
                                         UI.user_error!("No project file specified, pass using `proj: 'Project.xcodeproj'`") unless value and !value.empty?
                                       end),
          FastlaneCore::ConfigItem.new(key: :scheme,
                                       env_name: "FL_SLATHER_SCHEME", # The name of the environment variable
                                       description: "Scheme to use when calling slather",
                                       optional: true
                                      ),
          FastlaneCore::ConfigItem.new(key: :input_format,
                                       env_name: "FL_SLATHER_INPUT_FORMAT", # The name of the environment variable
                                       description: "The input format that slather should look for",
                                       optional: true
                                      ),
          FastlaneCore::ConfigItem.new(key: :buildkite,
                                       env_name: "FL_SLATHER_BUILDKITE_ENABLED", # The name of the environment variable
                                       description: "Tell slather that it is running on Buildkite",
                                       is_string: false,
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :jenkins,
                                       env_name: "FL_SLATHER_JENKINS_ENABLED", # The name of the environment variable
                                       description: "Tell slather that it is running on Jenkins",
                                       is_string: false,
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :travis,
                                       env_name: "FL_SLATHER_TRAVIS_ENABLED", # The name of the environment variable
                                       description: "Tell slather that it is running on TravisCI",
                                       is_string: false,
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :circleci,
                                       env_name: "FL_SLATHER_CIRCLECI_ENABLED",
                                       description: "Tell slather that it is running on CircleCI",
                                       is_string: false,
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :coveralls,
                                       env_name: "FL_SLATHER_COVERALLS_ENABLED",
                                       description: "Tell slather that it should post data to Coveralls",
                                       is_string: false,
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :simple_output,
                                       env_name: "FL_SLATHER_SIMPLE_OUTPUT_ENABLED",
                                       description: "Tell slather that it should output results to the terminal",
                                       is_string: false,
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :gutter_json,
                                       env_name: "FL_SLATHER_GUTTER_JSON_ENABLED",
                                       description: "Tell slather that it should output results as Gutter JSON format",
                                       is_string: false,
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :cobertura_xml,
                                       env_name: "FL_SLATHER_COBERTURA_XML_ENABLED",
                                       description: "Tell slather that it should output results as Cobertura XML format",
                                       is_string: false,
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :html,
                                       env_name: "FL_SLATHER_HTML_ENABLED",
                                       description: "Tell slather that it should output results as static HTML pages",
                                       is_string: false,
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :show,
                                       env_name: "FL_SLATHER_SHOW_ENABLED",
                                       description: "Tell slather that it should oupen static html pages automatically",
                                       is_string: false,
                                       default_value: false),
          FastlaneCore::ConfigItem.new(key: :source_directory,
                                       env_name: "FL_SLATHER_SOURCE_DIRECTORY",
                                       description: "Tell slather the location of your source files",
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :output_directory,
                                       env_name: "FL_SLATHER_OUTPUT_DIRECTORY",
                                       description: "Tell slather the location of for your output files",
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :ignore,
                                       env_name: "FL_SLATHER_IGNORE",
                                       description: "Tell slather to ignore files matching a path or any path from an array of paths",
                                       is_string: false,
                                       optional: true),
          FastlaneCore::ConfigItem.new(key: :use_bundle_exec,
                                      env_name: "FL_SLATHER_USE_BUNDLE_EXEC",
                                      description: "Use bundle exec to execute slather. Make sure it is in the Gemfile",
                                      is_string: false,
                                      default_value: false),
          FastlaneCore::ConfigItem.new(key: :binary_basename,
                                      env_name: "FL_SLATHER_BINARY_BASENAME",
                                      description: "Basename of the binary file, this should match the name of your bundle excluding its extension (i.e. YourApp [for YourApp.app bundle])",
                                      default_value: false),
          FastlaneCore::ConfigItem.new(key: :binary_file,
                                      env_name: "FL_SLATHER_BINARY_FILE",
                                      description: "Binary file name to be used for code coverage",
                                      default_value: false)
        ]
      end

      def self.output
        # Define the shared values you are going to provide
      end

      def self.authors
        # So no one will ever forget your contribution to fastlane :) You are awesome btw!
        ["mattdelves"]
      end

      def self.is_supported?(platform)
        [:ios, :mac].include? platform
      end
    end
  end
end