use std::collections::HashMap;

use sqlx::{Postgres, Transaction};



pub trait SeptaJson {}

pub trait FromSeptaJson<T: SeptaJson> {
    fn from_septa_json(septa_json: T) -> ::anyhow::Result<Box<Self>>;  
}

pub trait FromSeptaJsonAndStations<T: SeptaJson> {
    fn from_septa_json(septa_json: T, stop_map: &HashMap<String, i64>) -> ::anyhow::Result<Box<Self>>;  
}

pub trait DbObj<T> {
    fn create_table(tx: &mut Transaction<'_, Postgres>) -> impl std::future::Future< Output = ::anyhow::Result<()>> + Send;
    fn insert(&self, tx: &mut Transaction<'_, Postgres>) -> impl std::future::Future< Output =  ::anyhow::Result<()>> + Send; 
    fn insert_many(s: Vec<T>, tx: &mut Transaction<'_, Postgres>) -> impl std::future::Future< Output =  ::anyhow::Result<()>> + Send; 
}

pub trait Fetchable<T: SeptaJson> {}