import mariadb, { Connection, ConnectionConfig } from "mariadb";
import grabDbSSL from "./backend/grabDbSSL";

type Param = {
    /**
     * No Database Connection
     */
    noDb?: boolean;
    /**
     * Database Name
     */
    database?: string;
    /**
     * Debug
     */
    config?: ConnectionConfig;
};

/**
 * # Grab General CONNECTION for DSQL
 */
export default async function grabDSQLConnection(
    param?: Param
): Promise<Connection> {
    const config: ConnectionConfig = {
        host: process.env.DSQL_DB_HOST,
        user: process.env.DSQL_DB_USERNAME,
        password: process.env.DSQL_DB_PASSWORD,
        database:
            param?.database ||
            (param?.noDb ? undefined : process.env.DSQL_DB_NAME),
        port: process.env.DSQL_DB_PORT
            ? Number(process.env.DSQL_DB_PORT)
            : undefined,
        charset: "utf8mb4",
        ssl: grabDbSSL(),
        bigIntAsNumber: true,
        supportBigNumbers: true,
        bigNumberStrings: false,
        dateStrings: true,
        metaAsArray: true,
        socketTimeout: 5000,
        connectTimeout: 5000,
        compress: true,
        ...param?.config,
    };

    try {
        return await mariadb.createConnection(config);
    } catch (error) {
        console.log(`Error Grabbing DSQL Connection =>`, config);
        throw error;
    }

    // if (global.DSQL_USE_LOCAL || param?.local) {
    //     return (
    //         global.DSQL_DB_CONN ||
    //         (await mariadb.createConnection({
    //             host: process.env.DSQL_DB_HOST,
    //             user: process.env.DSQL_DB_USERNAME,
    //             password: process.env.DSQL_DB_PASSWORD,
    //             database: param?.noDb ? undefined : process.env.DSQL_DB_NAME,
    //             port: process.env.DSQL_DB_PORT
    //                 ? Number(process.env.DSQL_DB_PORT)
    //                 : undefined,
    //             charset: "utf8mb4",
    //             ssl: grabDbSSL(),
    //             supportBigNumbers: true,
    //             bigNumberStrings: false,
    //             dateStrings: true,
    //         }))
    //     );
    // }

    // if (param?.ro) {
    //     return (
    //         global.DSQL_READ_ONLY_DB_CONN ||
    //         (await mariadb.createConnection({
    //             host: process.env.DSQL_DB_HOST,
    //             user: process.env.DSQL_DB_READ_ONLY_USERNAME,
    //             password: process.env.DSQL_DB_READ_ONLY_PASSWORD,
    //             port: process.env.DSQL_DB_PORT
    //                 ? Number(process.env.DSQL_DB_PORT)
    //                 : undefined,
    //             charset: "utf8mb4",
    //             ssl: grabDbSSL(),
    //             supportBigNumbers: true,
    //             bigNumberStrings: false,
    //             dateStrings: true,
    //         }))
    //     );
    // }

    // if (param?.fa) {
    //     return (
    //         global.DSQL_FULL_ACCESS_DB_CONN ||
    //         (await mariadb.createConnection({
    //             host: process.env.DSQL_DB_HOST,
    //             user: process.env.DSQL_DB_FULL_ACCESS_USERNAME,
    //             password: process.env.DSQL_DB_FULL_ACCESS_PASSWORD,
    //             port: process.env.DSQL_DB_PORT
    //                 ? Number(process.env.DSQL_DB_PORT)
    //                 : undefined,
    //             charset: "utf8mb4",
    //             ssl: grabDbSSL(),
    //             supportBigNumbers: true,
    //             bigNumberStrings: false,
    //             dateStrings: true,
    //         }))
    //     );
    // }

    // return (
    //     global.DSQL_DB_CONN ||
    //     (await mariadb.createConnection({
    //         host: process.env.DSQL_DB_HOST,
    //         user: process.env.DSQL_DB_USERNAME,
    //         password: process.env.DSQL_DB_PASSWORD,
    //         database: param?.noDb ? undefined : process.env.DSQL_DB_NAME,
    //         port: process.env.DSQL_DB_PORT
    //             ? Number(process.env.DSQL_DB_PORT)
    //             : undefined,
    //         charset: "utf8mb4",
    //         ssl: grabDbSSL(),
    //         supportBigNumbers: true,
    //         bigNumberStrings: false,
    //         dateStrings: true,
    //     }))
    // );
}