const BANNER_TEXT = '[BROWSER-DEVTOOLS]';
let enabled: boolean = true;
let debugEnabled: boolean = process.env.DEBUG_ENABLE === 'true';
function _timeAsString(): string {
const date: Date = new Date();
return `${date.toLocaleTimeString(undefined, {
hour: 'numeric',
minute: 'numeric',
second: 'numeric',
hour12: false,
timeZoneName: 'short',
})}`;
}
function _normalizeArgs(...args: any[]): any[] {
if (isDebugEnabled()) {
return args;
} else {
return (args || []).map((arg) => {
if (!arg) {
return '';
}
if (
arg instanceof Error ||
(arg.name && arg.message && arg.stack)
) {
return `${arg.name}: ${arg.message}`;
} else {
return arg;
}
});
}
}
export function enable(): void {
enabled = true;
}
export function disable(): void {
enabled = false;
}
export function isDebugEnabled(): boolean {
return debugEnabled;
}
export function setDebugEnabled(enabled: boolean): void {
debugEnabled = enabled;
}
export function debug(...args: any[]): void {
if (!enabled) {
return;
}
if (isDebugEnabled()) {
console.debug(
BANNER_TEXT,
_timeAsString(),
'|',
'DEBUG',
'-',
..._normalizeArgs(...args)
);
}
}
export function info(...args: any[]): void {
if (!enabled) {
return;
}
console.info(
BANNER_TEXT,
_timeAsString(),
'|',
'INFO ',
'-',
..._normalizeArgs(...args)
);
}
export function warn(...args: any[]): void {
if (!enabled) {
return;
}
console.warn(
BANNER_TEXT,
_timeAsString(),
'|',
'WARN ',
'-',
..._normalizeArgs(...args)
);
}
export function error(...args: any[]): void {
if (!enabled) {
return;
}
console.error(
BANNER_TEXT,
_timeAsString(),
'|',
'ERROR',
'-',
..._normalizeArgs(...args)
);
}
function _getCircularReplacer() {
const seen = new WeakSet();
return (key: string, value: any) => {
if (typeof value === 'object' && value !== null) {
if (seen.has(value)) {
return;
}
seen.add(value);
}
return value;
};
}
export function toJson(obj: any): string {
return JSON.stringify(obj, _getCircularReplacer());
}
