paramadeep/poisol

module Poisol 
  module RequestBodyBuilder

    def prepare_request_body
      return if @stub_config.request.body.blank?
      if  @stub_config.request.is_column_array or @stub_config.request.is_row_array 
        generate_methods_to_alter_request_array
      else
        generate_methods_to_alter_request_object 
      end
    end

    def generate_methods_to_alter_request_array
      @request_array_item = @stub_config.request.body
      generate_method_to_append_request_array
      generate_method_to_append_request_array_as_hash_params
      generate_method_to_alter_request_array_object
    end

    def generate_method_to_alter_request_array_object
      @request_array_item.each do |field|
        field_name = field[0]
        actual_field_value = field[1]
        is_array = (actual_field_value.class.to_s == "Array")
        actual_field_value = actual_field_value[0] if is_array
        method_name = is_array ? ("having_#{field_name.classify.underscore}") : ("having_#{field_name.underscore}")
        define_method(method_name) do |*input_value|
          input_value = input_value[0]
          assignment_value = get_assignment_value actual_field_value,input_value
          @request.body.last[field_name] = is_array ? (@request.body.last[field_name] << assignment_value) :  assignment_value
          self
        end
      end
    end

    def generate_method_to_append_request_array
      class_name = self.name.classify.underscore
      method_name = "by_#{class_name}"
      define_method(method_name) do |*input_value|
        if input_value.blank?
          @request.body << stub_config.request.body.deep_dup 
        else
          input = JSON.parse(input_value[0].to_json)
          @request.body << (stub_config.request.body.deep_dup).deep_merge!(input_value[0].stringify_keys)
        end
        self
      end
    end

    def generate_method_to_append_request_array_as_hash_params
      class_name = self.name.underscore
      method_name = "by_#{class_name}"
      define_method(method_name) do |*input_value|
        input_hashes = input_value[0]
        input_hashes.each do |input_hash|
          @request.body << (stub_config.request.body.deep_dup).deep_merge!(input_hash.stringify_keys)
        end
        self
      end
    end


    def generate_methods_to_alter_request_object
      request_body = @stub_config.request.body.clone
      request_body.each do |field|
        field_name = field[0]
        actual_field_value = field[1]
        is_array = (actual_field_value.class.to_s == "Array")
        if is_array 
          generate_method_to_alter_request_field_array field_name,actual_field_value
        else 
          generate_method_to_alter_request_field field_name,actual_field_value
        end
      end
    end

    def generate_method_to_alter_request_field_array field_name,actual_field_values
      actual_field_value = actual_field_values[0] 
      method_name = "by_#{field_name.classify.underscore}" 
      define_method(method_name) do |*input_value|
        input_value = input_value[0]
        assignment_value = get_assignment_value actual_field_value,input_value
        @request.body[field_name] =  [assignment_value]
        self
      end

      method_name = "by_another_#{field_name.classify.underscore}" 
      define_method(method_name) do |*input_value|
        input_value = input_value[0]
        assignment_value = get_assignment_value actual_field_value,input_value
        @request.body[field_name] =  @request.body[field_name] << assignment_value 
        self
      end

      method_name = "by_no_#{field_name.classify.underscore}" 
      define_method(method_name) do 
        @request.body[field_name] = [] 
        self
      end
    end

    def generate_method_to_alter_request_field field_name,actual_field_value
      method_name = "by_#{field_name.underscore}"
      define_method(method_name) do |*input_value|
        input_value = input_value[0]
        assignment_value = get_assignment_value actual_field_value,input_value
        @request.body[field_name] = assignment_value
        self
      end
    end


  end
end