Create level option for logger config instance

lib/hanami/config/logger.rb

@@ -8,8 +8,20 @@ module Config
     class Logger
       attr_reader :application_module
 
+      # @since x.x.x
+      # @api private
+      LEVEL_HASH = {
+        warn:    Hanami::Logger::WARN,
+        info:    Hanami::Logger::INFO,
+        fatal:   Hanami::Logger::FATAL,
+        error:   Hanami::Logger::ERROR,
+        debug:   Hanami::Logger::DEBUG,
+        unknown: Hanami::Logger::UNKNOWN
+      }
+
       def initialize
         @device = STDOUT
+        @level  = Hanami::Logger::DEBUG
       end
 
       # Log device.
@@ -59,6 +71,25 @@ def engine(value = nil)
         end
       end
 
+      # Logger level
+      #
+      # @overload level(value)
+      #   Sets the given value
+      #   @param value [Object] a level
+      #
+      # @overload level
+      #   Gets the value
+      #   @return [Object] returns the level
+      #
+      # @since x.x.x
+      def level(value = nil)
+        if value.nil?
+          @level
+        else
+          @level = detect_level(value)
+        end
+      end
+
       # Application name value.
       #
       # @overload stream(value)
@@ -92,6 +123,12 @@ def build
         @engine ||
           ::Hanami::Logger.new(@app_name, device: @device)
       end
+
+    private
+
+      def detect_level(level)
+        level.is_a?(Integer) ? level : LEVEL_HASH[level.to_sym.downcase]
+      end
     end
   end
 end

test/config/logger_test.rb

@@ -35,6 +35,32 @@
     end
   end
 
+  describe '#level' do
+    it 'takes logger level as a symbol' do
+      logger.level(:debug)
+      logger.level.must_equal Hanami::Logger::DEBUG
+    end
+
+    it 'takes logger level as a string' do
+      logger.level('debug')
+      logger.level.must_equal Hanami::Logger::DEBUG
+    end
+
+    it 'takes logger level as a uppercased string' do
+      logger.level('DEBUG')
+      logger.level.must_equal Hanami::Logger::DEBUG
+    end
+
+    it 'takes logger level as a constant' do
+      logger.level(Hanami::Logger::DEBUG)
+      logger.level.must_equal Hanami::Logger::DEBUG
+    end
+
+    it 'contains debug level by default' do
+      logger.level.must_equal ::Logger::DEBUG
+    end
+  end
+
   describe '#build' do
     it 'returns new Hanami::Logger instance' do
       logger.build.must_be_instance_of Hanami::Logger