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package cask
import language.experimental.macros
import scala.annotation.StaticAnnotation
import scala.reflect.macros.blackbox.Context
class route(val path: String) extends StaticAnnotation
class Main(x: Any*)
object Server{
case class Route(name: String, metadata: route)
case class Routes[T](value: Route*)
object Routes{
implicit def initialize[T] = macro initializeImpl[T]
implicit def initializeImpl[T: c.WeakTypeTag](c: Context): c.Expr[Routes[T]] = {
import c.universe._
val routes = c.weakTypeOf[T].members
.map(m => (m, m.annotations.filter(_.tree.tpe =:= c.weakTypeOf[route])))
.collect{case (m, Seq(a)) => (m, a)}
val routeParts = for((m, a) <- routes) yield {
val annotation = q"new ${a.tree.tpe}(..${a.tree.children.tail})"
q"cask.Server.Route(${m.name.toString}, $annotation)"
}
c.Expr[Routes[T]](q"""cask.Server.Routes(..$routeParts)""")
}
}
}
class Server[T](){
private[this] var routes0: Server.Routes[this.type] = null
def routes =
if (routes0 != null) routes0
else throw new Exception("Routes not yet initialize")
protected[this] def initialize()(implicit routes: Server.Routes[this.type]): Unit = {
routes0 = routes
}
}
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