ztimson/utils
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Updated logger to use log levels

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Zakary Timson 2024-02-28 19:08:51 -05:00
parent e4c7dea9a5
commit 74c89c3ed4
2 changed files with 59 additions and 21 deletions
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2
package.json
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@ -1,6 +1,6 @@
{ {
"name": "@ztimson/js-utilities", "name": "@ztimson/js-utilities",
"version": "0.1.0", "version": "0.2.0",
"description": "JavaScript Utility library", "description": "JavaScript Utility library",
"author": "Zak Timson", "author": "Zak Timson",
"license": "MIT", "license": "MIT",

78
src/logger.ts
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@ -1,3 +1,5 @@
import {TypedEmitter, TypedEvents} from './emitter';
export const CliEffects = { export const CliEffects = {
CLEAR: "\x1b[0m", CLEAR: "\x1b[0m",
BRIGHT: "\x1b[1m", BRIGHT: "\x1b[1m",
@ -9,15 +11,22 @@ export const CliEffects = {
} }
export const CliForeground = { export const CliForeground = {
BLACK: "\x1b[30m", BLACK: '\x1b[30m',
RED: "\x1b[31m", RED: '\x1b[31m',
GREEN: "\x1b[32m", GREEN: '\x1b[32m',
YELLOW: "\x1b[33m", YELLOW: '\x1b[33m',
BLUE: "\x1b[34m", BLUE: '\x1b[34m',
MAGENTA: "\x1b[35m", MAGENTA: '\x1b[35m',
CYAN: "\x1b[36m", CYAN: '\x1b[36m',
WHITE: "\x1b[37m", LIGHT_GREY: '\x1b[37m',
GREY: "\x1b[90m", GREY: '\x1b[90m',
LIGHT_RED: '\x1b[91m',
LIGHT_GREEN: '\x1b[92m',
LIGHT_YELLOW: '\x1b[93m',
LIGHT_BLUE: '\x1b[94m',
LIGHT_MAGENTA: '\x1b[95m',
LIGHT_CYAN: '\x1b[96m',
WHITE: '\x1b[97m',
} }
export const CliBackground = { export const CliBackground = {
@ -32,34 +41,63 @@ export const CliBackground = {
GREY: "\x1b[100m", GREY: "\x1b[100m",
} }
export class Logger { export enum LOG_LEVEL {
constructor(public readonly namespace: string) { } VERBOSE,
INFO,
WARN,
ERROR
}
export type LoggerEvents = TypedEvents & {
'VERBOSE': (...args: any[]) => any;
'INFO': (...args: any[]) => any;
'WARN': (...args: any[]) => any;
'ERROR': (...args: any[]) => any;
};
export class Logger extends TypedEmitter<LoggerEvents> {
static LOG_LEVEL: LOG_LEVEL = LOG_LEVEL.INFO;
constructor(public readonly namespace: string) {
super();
}
private format(...text: string[]): string { private format(...text: string[]): string {
return `${new Date().toISOString()} [${this.namespace}] ${text.join(' ')}`; return `${new Date().toISOString()} [${this.namespace}] ${text.join(' ')}`;
} }
debug(...args: string[]) { debug(...args: string[]) {
console.log(CliForeground.MAGENTA + this.format(...args) + CliEffects.CLEAR); if(LOG_LEVEL.VERBOSE >= Logger.LOG_LEVEL) {
this.emit('VERBOSE', ...args);
console.debug(CliForeground.LIGHT_GREY + this.format(...args) + CliEffects.CLEAR);
}
} }
error(...args: string[]) { error(...args: string[]) {
console.log(CliForeground.RED + this.format(...args) + CliEffects.CLEAR); if(LOG_LEVEL.ERROR >= Logger.LOG_LEVEL) {
this.emit('ERROR', ...args);
console.error(CliForeground.RED + this.format(...args) + CliEffects.CLEAR);
}
} }
info(...args: string[]) { info(...args: string[]) {
console.log(CliForeground.CYAN + this.format(...args) + CliEffects.CLEAR); if(LOG_LEVEL.INFO >= Logger.LOG_LEVEL) {
this.emit('INFO', ...args);
console.info(CliForeground.CYAN + this.format(...args) + CliEffects.CLEAR);
}
} }
log(...args: string[]) { log(...args: string[]) {
console.log(CliEffects.CLEAR + this.format(...args)); if(LOG_LEVEL.INFO >= Logger.LOG_LEVEL) {
this.emit('INFO', ...args);
console.log(CliEffects.CLEAR + this.format(...args));
}
} }
warn(...args: string[]) { warn(...args: string[]) {
console.log(CliForeground.YELLOW + this.format(...args) + CliEffects.CLEAR); if(LOG_LEVEL.WARN >= Logger.LOG_LEVEL) {
} this.emit('WARN', ...args);
console.warn(CliForeground.YELLOW + this.format(...args) + CliEffects.CLEAR);
verbose(...args: string[]) { }
console.log(CliForeground.WHITE + this.format(...args) + CliEffects.CLEAR);
} }
} }