use sqlx::sqlite::{SqliteConnectOptions, SqlitePool, SqlitePoolOptions};
use std::str::FromStr;

use crate::models::user::User;

pub struct Database {
    pub pool: SqlitePool,
}

pub type DbId = i64;

impl Database {
    pub async fn for_user(user: &User) -> Result<Self, anyhow::Error> {
        let file = if user.ephemeral {
            ":memory:".to_string()
        } else {
            format!("./dbs/{}.db", user.username)
        };

        let db_options = SqliteConnectOptions::from_str(&file)?
            .create_if_missing(true)
            .to_owned();

        let pool = SqlitePoolOptions::new().connect_with(db_options).await?;

        let migrator = if user.username == "demo" {
            sqlx::migrate!("./migrations/demo.db/")
        } else {
            sqlx::migrate!("./migrations/each_user/")
        };
        migrator.run(&pool).await?;

        Ok(Self { pool })
    }
}