import db from "./db";
import session from "./Session";

class UserManager {
    async all() {
        const users = await db.users.toArray();
        if (session.exists()) {
            users.unshift(this.localUser());
        }
        return users;
    }

    async get(baseUrl) {
        if (session.exists() && baseUrl === config.base_url) {
            return this.localUser();
        }
        return db.users.get(baseUrl);
    }

    async save(user) {
        if (session.exists() && user.baseUrl === config.base_url) {
            return;
        }
        await db.users.put(user);
    }

    async delete(baseUrl) {
        if (session.exists() && baseUrl === config.base_url) {
            return;
        }
        await db.users.delete(baseUrl);
    }

    localUser() {
        if (!session.exists()) {
            return null;
        }
        return {
            baseUrl: config.base_url,
            username: session.username(),
            token: session.token() // Not "password"!
        };
    }
}

const userManager = new UserManager();
export default userManager;