zeroant-factory/src/error.factory.ts

Factory modules for zeroant

import { type ErrorCode, type ErrorDescription } from 'zeroant-constant/response.enum'
import { type ErrorMessage } from 'zeroant-constant/response.type'

export abstract class ErrorFactory extends Error {
  public readonly statusCode: number | undefined
  #contentType = 'application/json'
  #cause?: Error
  constructor(
    public errorCode: ErrorCode,
    public errorDescription: ErrorDescription,
    public errorMessage: ErrorMessage
  ) {
    super()
    this.errorCode = errorCode
    this.errorDescription = errorDescription
    this.errorMessage = errorMessage
  }

  get message() {
    return this.errorMessage as string
  }

  get contentType(): string {
    return this.#contentType
  }

  set(key: 'message' | 'description' | 'code' | 'content-type', value: string) {
    if (key === 'content-type') {
      this.#contentType = value
    }
    if (key === 'message') {
      this.errorMessage = value
    }
    if (key === 'description') {
      this.errorDescription = value as any
    }
    if (key === 'code') {
      this.errorCode = value as any
    }
    return this
  }

  /**
   *
   * @param {Error} cause
   * @description
   *  Error messages written for human consumption may be inappropriate for machine parsing — since they're subject to rewording or punctuation changes that may break any existing parsing written to consume them. So when throwing an error from a function, as an alternative to a human-readable error message, you can instead provide the cause as structured data, for machine parsing.
   */
  withRootError(cause?: Error): this {
    this.#cause = cause
    return this
  }

  get _cause(): Error | undefined {
    return this.#cause
  }
}