/**
 * @description Create configuration
 *
 * @param {string[]} argv command-line arguments
 * @returns {object} configuration object
 */
function createConfig(rawArgv: string[]) {
    const config = new nconf.Provider(),
        parsedArgv = flat.unflatten(minimist(rawArgv), {delimiter: ':'}),
        envWhitelist = _(process.env)
            .keys()
            .filter(function(key: string) {
                return ENV_DELIMITER_REGEX.test(key) && !/^npm_config/.test(key);
            })
            .valueOf()
            .concat(['loglevel']);

    config.add('argv', {type: 'literal', store: parsedArgv});

    config.env({
        separator: ENV_DELIMITER,
        whitelist: envWhitelist
    });

    return function get(key: string, defaultValue?: any): any {
        var result = coerceValues(config.get(key));

        if (_.isUndefined(result)) {
            result = defaultValue;
        }

        return result;
    };
}

export function getServerConfigs(): IServerConfigurations {
    return configs.get("server");
}

export function getDatabaseConfig(): IDataConfiguration {
    return configs.get("database");
}