@splitsoftware/splitio-commons/esm/utils/settingsValidation/logger/pluggableLogger.js

Split JavaScript SDK common components

import { Logger, LogLevels } from '../../../logger';
import { getLogLevel, isLogger } from './commons';
function isILogger(log) {
    return isLogger(log) && typeof log.setLogLevel === 'function';
}
// By default it starts disabled.
var initialLogLevel = LogLevels.NONE;
/**
 * Validates the `debug` property at config and use it to set the logger.
 *
 * @param settings - user config object, with an optional `debug` property of type boolean, string log level or a Logger object.
 * @returns a logger instance, that might be: the provided logger at `settings.debug`, or one with the given `debug` log level,
 * or one with NONE log level if `debug` is not defined or invalid.
 */
export function validateLogger(settings) {
    var debug = settings.debug, logger = settings.logger;
    var logLevel = initialLogLevel;
    if (debug !== undefined) {
        if (isILogger(debug)) {
            debug.setLogger(logger);
            return debug;
        }
        logLevel = getLogLevel(settings.debug);
    }
    var log = new Logger({ logLevel: logLevel || initialLogLevel });
    log.setLogger(logger);
    // `debug` value is invalid if logLevel is undefined at this point
    if (!logLevel)
        log._log('error', 'Invalid `debug` value at config. Logs will be disabled.');
    return log;
}