import log4js from "log4js";
import config from "./config.js";

const VALID_LEVELS = new Set([
  "trace",
  "debug",
  "info",
  "warn",
  "error",
  "fatal",
]);

/**
 * LOG_LEVEL env overrides config.server.logLevel; same levels as farmcontrol-api.
 */
export function getLogLevel() {
  const raw = (
    process.env.LOG_LEVEL ||
    config.server.logLevel ||
    "info"
  ).toLowerCase();
  return VALID_LEVELS.has(raw) ? raw : "info";
}

export function getLogger(category) {
  const logger = log4js.getLogger(category);
  logger.level = getLogLevel();
  return logger;
}