implement lib

src/writer/file.ts

@@ -0,0 +1,43 @@
+import {Writer} from 'writer'
+import {type WriterOptions, Level} from 'types'
+
+export class File extends Writer {
+    public constructor(options: WriterOptions & { path: string }) {
+        const {path, ...rest} = options
+        super(rest)
+    }
+
+    protected write(level: Level, ...data: any[]) : void {
+        // TODO
+    }
+}
+
+export class DailyFile extends Writer {
+    private _writer: File
+    private readonly _folder: string
+    private now: Date = new Date()
+
+    public constructor(options: WriterOptions & {folder: string}) {
+        const {folder, ...rest} = options
+
+        super(rest)
+        this._folder = folder
+
+        this._writer = DailyFile.start(this.options, this._folder, this.now)
+    }
+
+    private static start(options: WriterOptions, folder: string, now: Date) : File {
+        const date = now.toISOString().split('T')[0]
+        const path = `${folder}/${date}.log`
+        return new File({...options, path})
+    }
+
+    protected write(level: Level, ...data: any[]): void {
+        if (new Date().getDay() !== this.now.getDay()) {
+            this.now = new Date()
+            this._writer = DailyFile.start(this.options, this._folder, this.now)
+        }
+
+        return this._writer.log(level, data)
+    }
+}