package controllers.devel

import dao.UsersDAO
import play.api.libs.functional.syntax.toFunctionalBuilderOps
import play.api.libs.json.{JsError, JsPath, Json, Reads}
import play.api.mvc.*

import javax.inject.Inject
import scala.concurrent.{ExecutionContext, Future}

class DevActionsController @Inject()(val controllerComponents: ControllerComponents,
                                     val usersDAO: UsersDAO)
                                    (implicit val ec: ExecutionContext)
  extends BaseController {

  private case class UserData(username: String, password: String)
  private implicit val userDataReads: Reads[UserData] = (
    (JsPath \ "username").read[String] and (JsPath \ "password").read[String]
  )(UserData.apply)

  def createUser = Action.async(parse.json) { implicit request =>
    request.body.validate[UserData].fold(
      errors => Future.successful(BadRequest(JsError.toJson(errors))),
      userData => usersDAO.create(userData.username, userData.password)
        .map {
          case Left(UsersDAO.UsernameTaken) => BadRequest(Json.obj("error" -> "Username exists"))
          case Left(_ex) => BadRequest(Json.obj("error" -> "User creation error"))
          case Right(user) => Ok(Json.toJson(user))
        }
    )
  }
}