module Fastlane
  module Actions
    module SharedValues
      ANDROID_VERSION_UP_CUSTOM_VALUE = :ANDROID_VERSION_UP_CUSTOM_VALUE
    end

    class AndroidVersionUpAction < Action

      def self.run(params)
        # fastlane will take care of reading in the parameter and fetching the environment variable:
        #UI.message "Parameter API Token: #{params[:api_token]}"
        filename = Dir.pwd + params[:filename] #params[:filename]

        f = File.open(filename, "r")
        content = f.read

        content =~ /.*\b(versionName)\b(.*).*/
        versionName = $2.gsub("\"", "").gsub(" ","")

        content =~ /.*((versionCode)\ (\d+)\n)/
        versionCode = $3.to_i

        puts "versionCode: #{versionCode}\nversionName: #{versionName} "
        newVersionCode = versionCode.to_i + 1

        text = content.gsub(/.*(versionCode)\ (\d+)\n/, "\t\tversionCode #{newVersionCode}\n")
        puts "increased version from #{versionCode} number to #{newVersionCode}"

        File.open(filename, "w") { |file| file << text }

        return [versionName, newVersionCode]

      end

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

      def self.description
        "This action increases your App-VersionCode automatically"
      end

      def self.details

      end

      def self.available_options
        [
          FastlaneCore::ConfigItem.new(key: :filename,
                                       env_name: "FL_ANDROID_VERSION_UP_FILENAME", # The name of the environment variable
                                       description: "Gradle Filename for AndroidVersionUpAction (default: /app/build.gradle)", # a short description of this parameter
                                       verify_block: proc do |value|
                                          UI.user_error!("No build.gradle token for AndroidVersionUpAction given, pass using `filename: 'path_to_filename'`") unless (value and not value.empty?)
                                          # UI.user_error!("Couldn't find file at path '#{value}'") unless File.exist?(value)
                                       end)
        ]
      end

      def self.output
        # Define the shared values you are going to provide
        # Example
        [
          ['FL_ANDROID_VERSION_UP_FILENAME', '/app/build.gradle']
        ]
      end

      def self.return_value
        # If your method provides a return value, you can describe here what it does
        "The return values are [versionName, newVersionCode]"
      end

      def self.authors
        # So no one will ever forget your contribution to fastlane :) You are awesome btw!
        ["g00m"]
      end

      def self.is_supported?(platform)
        platform == :android
      end
    end
  end
end