rowboat/apps/cli/src/shared/prefix-logger.ts

// create a PrefixLogger class that wraps console.log with a prefix
// and allows chaining with a parent logger
export class PrefixLogger {
    private prefix: string;
    private parent: PrefixLogger | null;

    constructor(prefix: string, parent: PrefixLogger | null = null) {
        this.prefix = prefix;
        this.parent = parent;
    }

    log(...args: any[]) {
        const timestamp = new Date().toISOString();
        const prefix = '[' + this.prefix + ']';

        if (this.parent) {
            this.parent.log(prefix, ...args);
        } else {
            console.log(timestamp, prefix, ...args);
        }
    }

    child(childPrefix: string): PrefixLogger {
        return new PrefixLogger(childPrefix, this);
    }
}