import chalk from 'chalk'; // 'SUCC' を型に追加 type LogLevel = 'INFO' | 'WARN' | 'ERROR' | 'SUCC'; function format(level: LogLevel, message: string): string { switch (level) { case 'INFO': return `${chalk.cyan.bold('[INFO]')} ${message}`; case 'WARN': return `${chalk.yellow.bold('[WARN]')} ${message}`; case 'ERROR': return `${chalk.red.bold('[ERROR]')} ${chalk.red(message)}`; case 'SUCC': return `${chalk.green.bold('[SUCC]')} ${message}`; default: return `[${level}] ${message}`; } } export const logger = { info(message: string) { console.log(format('INFO', message)); }, warn(message: string) { console.warn(format('WARN', message)); }, error(message: string) { console.error(format('ERROR', message)); }, succ(message: string) { console.log(format('SUCC', message)); } };