import { Format, LoggerTransport, LogType } from '../logger';
import { LEVEL } from '../constants';

export const SPEC_CONSOLE_ARGS = 'specConsoleArgs';

export interface ConsoleTransportOptions {
  level?: LogType;
  format?: Format;
}

export class ConsoleTransport extends LoggerTransport {
  constructor(opts: ConsoleTransportOptions = {}) {
    super({
      ...opts,
      name: 'ConsoleTransport',
      batchConsume: false,
    });
  }

  protected log(log, cb) {
    let fn = console.log;

    if (typeof console[log[LEVEL]] === 'function') {
      fn = console[log[LEVEL]];
    }

    const specLogArgs = log[SPEC_CONSOLE_ARGS];

    /**
     * @notice 调用方可通过format函数定制打印的内容，给健"SPEC_CONSOLE_ARGS"设置值为数组
     * */
    if (Array.isArray(specLogArgs) && specLogArgs.length) {
      fn.apply(console, specLogArgs);
    } else {
      fn.call(console, log.message);
    }

    cb();
  }
}