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    /*
     * Copyright (C) 2022  Aravinth Manivannan <realaravinth@batsense.net>
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU Affero General Public License as
     * published by the Free Software Foundation, either version 3 of the
     * License, or (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU Affero General Public License for more details.
     *
     * You should have received a copy of the GNU Affero General Public License
     * along with this program.  If not, see <https://www.gnu.org/licenses/>.
     */
    //! meta operations like migration and connecting to a database
    use crate::dev::*;

    /// Database operations trait(migrations, pool creation and fetching connection from pool)
    pub trait DBOps: GetConnection + Migrate {}

    /// Get database connection
    #[async_trait]
    pub trait GetConnection {
        /// database connection type
        type Conn;
        /// database specific error-type
        /// get connection from connection pool
        async fn get_conn(&self) -> DBResult<Self::Conn>;
    }

    /// Create databse connection
    #[async_trait]
    pub trait Connect {
        /// database specific pool-type
        type Pool: MCDatabase;
        /// database specific error-type
        /// create connection pool
        async fn connect(self) -> DBResult<Self::Pool>;
    }

    /// database migrations
    #[async_trait]
    pub trait Migrate: MCDatabase {
        /// database specific error-type
        /// run migrations
        async fn migrate(&self) -> DBResult<()>;
    }