use sled::Tree;
use std::path::Path;

const DB_DIR: &str = "db";

const DB_NAME_AD: &str = "ad";
const DB_NAME_AD_BY_GROUP: &str = "ad_by_group";
const DB_NAME_GROUP: &str = "group";
const DB_NAME_GROUP_BY_GROUP: &str = "group_by_group";
const DB_NAME_GROUP_BY_NAME: &str = "group_by_name";

#[derive(Clone)]
pub struct Dbs {
	pub ad: Tree,
	pub ad_by_group: Tree,
	pub group: Tree,
	pub group_by_group: Tree,
	pub group_by_name: Tree,
}

pub fn load_dbs(path: &Path) -> Dbs {
	let db = sled::open(path.join(DB_DIR)).expect("Cannot open db");

	Dbs {
		ad: db.open_tree(DB_NAME_AD).unwrap(),
		ad_by_group: db.open_tree(DB_NAME_AD_BY_GROUP).unwrap(),
		group: db.open_tree(DB_NAME_GROUP).unwrap(),
		group_by_group: db.open_tree(DB_NAME_GROUP_BY_GROUP).unwrap(),
		group_by_name: db.open_tree(DB_NAME_GROUP_BY_NAME).unwrap(),
	}
}