use chrono::TimeDelta;

use crate::{
    auth::{authenticate_user, Error, Token},
    prelude::*,
};

#[derive(Deserialize, Debug)]
pub struct Params {
    username: String,
    password: String,
}

fn get_exp() -> i64 {
    let mut time = chrono::Utc::now();
    time += TimeDelta::minutes(30);
    time.timestamp()
}

pub async fn post(
    State(state): State<AppState>,
    Json(payload): Json<Params>,
) -> Result<Json<Token>, Error> {
    let user_id = authenticate_user(&payload.username, &payload.password, &state.pool)
        .await
        .map_err(|_| Error::WrongCredentials)?
        .ok_or(Error::WrongCredentials)?;
    Claims {
        user_id,
        exp: get_exp(),
    }
    .encode()
    .map(Json)
}