use std::future::Future;

use serde_json::{Map, Value};

use super::SessionKey;
use crate::error::AppError;

pub type SessionState = Map<String, Value>;

pub trait SessionStore {
    fn load(
        &self,
        session_key: &SessionKey,
    ) -> impl Future<Output = Result<Option<SessionState>, AppError>>;

    fn save(
        &self,
        session_state: SessionState,
        ttl_secs: u64,
    ) -> impl Future<Output = Result<SessionKey, AppError>>;

    fn update(
        &self,
        session_key: SessionKey,
        session_state: SessionState,
        ttl_secs: u64,
    ) -> impl Future<Output = Result<SessionKey, AppError>>;

    fn update_ttl(
        &self,
        session_key: &SessionKey,
        ttl_secs: u64,
    ) -> impl Future<Output = Result<(), AppError>>;

    fn delete(&self, session_key: &SessionKey) -> impl Future<Output = Result<(), AppError>>;
}