import type { ILogger } from "../types";

export class ConsoleLogger implements ILogger {
  constructor(private readonly processMetadata?: Record<string, unknown>) {}

  info(message: string, meta?: any) {
    console.log(`[INFO] ${message}`, this.merge(meta));
  }

  warn(message: string, meta?: any) {
    console.warn(`[WARN] ${message}`, this.merge(meta));
  }

  error(message: string, error?: Error | any) {
    console.error(`[ERROR] ${message}`, this.merge(error?.stack || error));
  }

  debug(message: string, meta?: any) {
    if (process.env.NODE_ENV === "development") {
      console.debug(`[DEBUG] ${message}`, this.merge(meta));
    }
  }

  private merge(meta: unknown): unknown {
    if (!this.processMetadata) {
      return meta ?? "";
    }
    return typeof meta === "object" && meta !== null
      ? { ...this.processMetadata, ...meta }
      : { ...this.processMetadata, detail: meta ?? null };
  }
}

export const createConsoleLogger = (processMetadata?: Record<string, unknown>): ILogger =>
  new ConsoleLogger(processMetadata);