79 lines
2.5 KiB
TypeScript
79 lines
2.5 KiB
TypeScript
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import path from "path";
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import { DEBUG } from "./variables";
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import fs from "fs";
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export class Logger {
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public currentLogFile: string;
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public tag?: string;
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private get pathToLogFile(): string {
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return path.join(__dirname, "../log", this.currentLogFile);
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}
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constructor(options?: { tag?: string }) {
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this.currentLogFile = this.createNewLogFile();
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if (options !== undefined) {
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this.tag = options.tag;
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}
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}
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private createNewLogFile() {
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const date = new Date().toISOString().split("T");
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date[1] = date[1].split(".")[0].replaceAll(":", "-");
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const fileName = `${date}.log`;
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fs.writeFileSync(this.pathToLogFile, "");
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return fileName;
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}
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private toString(object: any) {
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if (typeof object === "object")
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return Object.prototype.toString.call(object);
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else if (Array.isArray(object)) return object.join();
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else if (typeof object === "number") return object.toString();
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else if (typeof object === "boolean") return object.toString();
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else if (typeof object === "string") return object;
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return "Cannot transfrom object to string";
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}
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private writeEntryToFile(
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options: {
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tag?: string;
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type: "log" | "error" | "warn" | "info";
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divider?: string;
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},
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...args: any
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) {
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const strings: string[] = [];
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for (const argument of args) {
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const string = this.toString(argument);
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strings.push(string);
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}
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const dateString = new Date().toLocaleString(undefined, {
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formatMatcher: "best fit",
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dateStyle: "short",
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timeStyle: "medium",
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});
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const divider = options.divider === undefined ? "\n\t" : options.divider;
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let string = `[${dateString}] `;
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if (this.tag !== undefined) string += `[LTAG: ${this.tag}`;
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if (options.tag !== undefined) string += ` TAG: ${options.tag}] `;
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else string += "] ";
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string += `[${options.type.toUpperCase()}] `;
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string += strings.join(divider);
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fs.appendFileSync(this.pathToLogFile, string);
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}
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public log(...args: any) {
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if (!DEBUG) console.log(...args);
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this.writeEntryToFile({ type: "log" }, ...args);
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}
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public error(...args: any) {
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if (!DEBUG) console.error(...args);
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this.writeEntryToFile({ type: "error" }, ...args);
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}
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public warn(...args: any) {
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if (!DEBUG) console.warn(...args);
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this.writeEntryToFile({ type: "warn" }, ...args);
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}
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public info(...args: any) {
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if (!DEBUG) console.info(...args);
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this.writeEntryToFile({ type: "info" }, ...args);
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}
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}
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