import logging as logging;
import orm as orm;
import uuid as uuid;
import webapp.models as models;

#[derive(DeepCopy, Debug, PartialEq)]
type TodoGetParams struct {
  #[validate(format="short")]
  pub id: uuid.UUID;
}

#[derive(DeepCopy, Debug, PartialEq, Serialize)]
type TodoResponse struct {
  #[validate(format="short")]
  pub id: uuid.UUID;
  #[validate(format="short")]
  pub user_id: uuid.UUID;
  #[validate(min_length=1, max_length=256)]
  pub title: String;
  #[validate(min_length=1, max_length=1000000)]
  pub description: String;
  pub created_at: DateTime;
  pub updated_at: DateTime;
}

impl Into<TodoResponse> for models.Todo {
  fn into(self: Self): TodoResponse {
    return TodoResponse{..self};
  }
}

type Router struct {
  logger: logging::Logger;
  db: orm::DB;

  pub fn new(logger: logging::Logger, db: orm::DB): Router {
    return Self{logger: logger, db: db};
  }

  pub fn get_todo(self: Self, req: http.Request[TodoGetParams, http::NoQuery, http::NoBody]): IO[Result[http::JsonResponse[TodoResponse], http::Error]] {
    let id = req.params.id;
    let instance = models::Todo::select().filter(models::Todo::Id::equals(id)).first(self.db)??;
    return http::JsonResponse<TodoResponse>::ok(instance.into());
  }
}