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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
import type { BaseHandler } from "./base_handler.ts";import { DEFAULT_CONFIG, DEFAULT_LEVEL } from "./_config.ts";import { type LogConfig, Logger } from "./logger.ts";import { state } from "./_state.ts";
/** Setup logger config. */export function setup(config: LogConfig) {  state.config = {    handlers: { ...DEFAULT_CONFIG.handlers, ...config.handlers },    loggers: { ...DEFAULT_CONFIG.loggers, ...config.loggers },  };
  // tear down existing handlers  state.handlers.forEach((handler) => {    handler.destroy();  });  state.handlers.clear();
  // setup handlers  const handlers = state.config.handlers || {};
  for (const [handlerName, handler] of Object.entries(handlers)) {    handler.setup();    state.handlers.set(handlerName, handler);  }
  // remove existing loggers  state.loggers.clear();
  // setup loggers  const loggers = state.config.loggers || {};  for (const [loggerName, loggerConfig] of Object.entries(loggers)) {    const handlerNames = loggerConfig.handlers || [];    const handlers: BaseHandler[] = [];
    handlerNames.forEach((handlerName) => {      const handler = state.handlers.get(handlerName);      if (handler) {        handlers.push(handler);      }    });
    const levelName = loggerConfig.level || DEFAULT_LEVEL;    const logger = new Logger(loggerName, levelName, { handlers: handlers });    state.loggers.set(loggerName, logger);  }}
setup(DEFAULT_CONFIG);