logger-daily-file/index.ts

import logger, {Level, type Writer, type WriterOptions} from 'log'
import {File} from 'logger-file'

export * as log from 'log'
export default logger

export class DailyFile implements Writer {
    readonly _options: WriterOptions;
    private writer: File
    private readonly folder: string
    private current_date: Date = new Date()

    public constructor(options: {minLevel: Level, folder: string}) {
        const {folder, minLevel} = options

        this._options = {minLevel, with_color: false}
        this.folder = folder

        this.writer = DailyFile.start(this._options.minLevel, this.folder, this.current_date)
    }

    private static start(minLevel: Level, folder: string, now: Date) : File {
        const date = now.toISOString().split('T')[0]
        const path = `${folder}/${date}.log`
        return new File({minLevel, path})
    }

    public log(level: Level, ...data: any[]): void {
        if (new Date().getDay() !== this.current_date.getDay()) {
            this.current_date = new Date()
            this.writer.end()
            this.writer = DailyFile.start(this._options.minLevel, this.folder, this.current_date)
        }

        return this.writer.log(level, ...data)
    }

    public end() : number | Promise<number> {
        return this.writer.end()
    }

    public get options() : WriterOptions {
        return this._options
    }
}