module Avo
  class App
    class_attribute :field_manager
    class_attribute :cache_store, default: nil
    class_attribute :logger

    include ActiveModel::Model

    attr_accessor :request, :context, :current_user, :view_context
    attr_accessor :cache_store
    attr_accessor :resource_manager
    attr_accessor :dashboard_manager
    attr_accessor :tool_manager
    attr_accessor :error_manager

    class << self
      def eager_load(entity)
        paths = Avo::ENTITIES.fetch entity

        return unless paths.present?

        pathname = Rails.root.join(*paths)
        if pathname.directory?
          Rails.autoloaders.main.eager_load_dir(pathname.to_s)
        end
      end

      def boot
        init_logger
        init_fields
        self.cache_store = get_cache_store
        ::Avo.plugin_manager.boot_plugins
      end

      def get_cache_store
        if Rails.env.production?
          case Rails.cache.class.to_s
          when "ActiveSupport::Cache::MemCacheStore", "ActiveSupport::Cache::RedisCacheStore"
            Rails.cache
          else
            ActiveSupport::Cache.lookup_store(:file_store, "/tmp/cache")
          end
        elsif Rails.env.test?
          Rails.cache
        else
          ActiveSupport::Cache.lookup_store(:memory_store)
        end
      end

      def init_logger
        file_logger = ActiveSupport::Logger.new(Rails.root.join("log", "avo.log"))

        file_logger.datetime_format = "%Y-%m-%d %H:%M:%S"
        file_logger.formatter = proc do |severity, time, progname, msg|
          "[Avo] #{time}: #{msg}\n".tap do |i|
            puts i
          end
        end

        self.logger = file_logger
      end

      def init_fields
        self.field_manager = Avo::Fields::FieldManager.build
      end

      def fields
        field_manager
      end

      def build(request:, context:, current_user:, view_context:)
        @app || new(request: request, context: context, current_user: current_user, view_context: view_context)
      end

      def license
        Current.license
      end

      def instance
        Current.app
      end

      def resources
        Current.app.resource_manager
      end

      def dashboards
        Current.app.dashboard_manager
      end

      def tools
        Current.app.tool_manager
      end

      def errors
        Current.app.error_manager
      end

      # Renerate a dynamic root path using the URIService
      def root_path(paths: [], query: {}, **args)
        Avo::Services::URIService.parse(Avo::Current.view_context.avo.root_url.to_s)
          .append_paths(paths)
          .append_query(query)
          .to_s
      end

      def mount_path
        Avo::Engine.routes.find_script_name({})
      end

      def has_main_menu?
        return false if Avo::App.license.lacks_with_trial(:menu_editor)
        return false if Avo.configuration.main_menu.nil?

        true
      end

      def has_profile_menu?
        return false if Avo::App.license.lacks_with_trial(:menu_editor)
        return false if Avo.configuration.profile_menu.nil?

        true
      end

      def main_menu
        return unless Avo.plugin_manager.installed?(:avo_menu)

        # Return empty menu if the app doesn't have the profile menu configured
        return AvoMenu::Builder.new.build unless has_main_menu?

        AvoMenu::Builder.parse_menu(&Avo.configuration.main_menu)
      end

      def profile_menu
        return unless Avo.plugin_manager.installed?(:avo_menu)

        # Return empty menu if the app doesn't have the profile menu configured
        return AvoMenu::Builder.new.build unless has_profile_menu?

        AvoMenu::Builder.parse_menu(&Avo.configuration.profile_menu)
      end
    end

    def init
      self.error_manager = Avo::ErrorManager.build
      self.resource_manager = Avo::Resources::ResourceManager.build
      self.tool_manager = Avo::Tools::ToolManager.build
    end

    # Renerate a dynamic root path using the URIService
    def root_path(paths: [], query: {}, **args)
      Avo::Services::URIService.parse(view_context.avo.root_url.to_s)
        .append_paths(paths)
        .append_query(query)
        .to_s
    end

    def mount_path
      Avo::Engine.routes.find_script_name({})
    end

    def app_status
      Current.license.valid?
    end
  end

  def self.logger
    Avo::App.logger
  end
end