Hey guy I was thinking about the `config` helper, ...

# tornadofx

[nimakro]

Hey guy I was thinking about the config helper, this is what my first draft is looking like, I am open for any improvement suggestions or criticism.

In my opinion we should have the concept of component wide settings and system wide settings (which don't use the java.preferences) and store them as json ( to allow hierarchical data structures).

My first draft:

// Defines the config context
enum class Context {
                    LOCAL,
                    SYSTEM
}

// The the default configBasePath is Paths.get("conf") but can be changed by overriding
// the path variable in App like so:
class MyApp : App(MyView::class) {
      override val configBase = Paths.get("custom-folder")
      // The system path has to be a relative path since it will wie placed beneath configBase
     // If you don't override val system the system settings will be stored under
     //  configBase/system.properties
      override val system = Paths.get("system")
 }
 
class MyView : View() {
    // All configs are stored under configBase;
    // The LOCAL context contains all the component depending configurations
    // config_base_path default is conf inside the current program folder.
    config(context: Context = LOCAL) {
     // ...
    }

     // The default context path is configBase/javaClass.name + ".properties"
     // So you can write the following to save to the component config
     config {
          set("username" to "user")
          set("password" to "pwd")
      }

      // The SYSTEM context contains all system wide configurations und configBase/system
      // The SYSTEM context can by changed by overriding the system Path variable
      config(SYSTEM) {
            set("username" to "user")
            set("password" to "pwd")
            set("window") to jsonObject {
                  set("x" to 30.0)
                  set("y" to 40.0)
                  set("list" to jsonArray(2, 3, 4))
             }
        }

        config(LOCAL) {
            val usr = string("username")
            val pwd = string("password")
         }

         config(SYSTEM) {
              val usr = string("username")
               val pwd = string("password")
               val x = double("x", 50.0)

               // We allow jsonPath to retrieve elements.
               val windowX = double("windwo.x")
                val listFirst = double("windwo.list[0]")
           }
 }