// Code generated by @openmeter/typespec-typescript. DO NOT EDIT.

import { z } from 'zod'
import * as schemas from './schemas.js'

// Retry-After is either delta-seconds (an integer) or an HTTP-date. Only the
// delta-seconds form is parsed; HTTP-date values yield undefined rather than
// a parsed Date, keeping the public type a plain number.
function parseRetryAfter(header: string | null): number | undefined {
  if (header === null) {
    return undefined
  }
  const trimmed = header.trim()
  return /^\d+$/.test(trimmed) ? Number(trimmed) : undefined
}

export class HTTPError extends Error {
  constructor(
    message: string,
    public type: string,
    public title: string,
    public status: number,
    public url: string,
    public retryAfter: number | undefined,
    protected __raw?: Record<string, unknown>,
  ) {
    super(message)
    this.name = 'HTTPError'
  }

  static fromResponse(resp: {
    response: Response
    error?: z.infer<typeof schemas.baseError>
  }) {
    const retryAfter = parseRetryAfter(resp.response.headers.get('Retry-After'))

    if (
      resp.response.headers
        .get('Content-Type')
        ?.includes('application/problem+json') &&
      resp.error
    ) {
      return new HTTPError(
        resp.error.detail,
        resp.error.type ?? resp.error.title,
        resp.error.title,
        resp.error.status ?? resp.response.status,
        resp.response.url,
        retryAfter,
        resp.error,
      )
    }

    return new HTTPError(
      `Request failed: ${resp.response.statusText}`,
      resp.response.statusText,
      resp.response.statusText,
      resp.response.status,
      resp.response.url,
      retryAfter,
    )
  }

  /**
   * The `invalid_parameters` problem-detail extension member, present on Bad
   * Request (400) responses. Typed from the schema, not runtime-validated
   * (like the rest of the SDK, this trusts the server rather than rejecting
   * additive fields) — `undefined` when the response didn't carry one.
   */
  get invalidParameters():
    | z.infer<typeof schemas.invalidParameters>
    | undefined {
    return this.__raw?.invalid_parameters as
      | z.infer<typeof schemas.invalidParameters>
      | undefined
  }

  /**
   * Escape hatch for problem-detail extension members without a typed
   * accessor above.
   */
  getField(key: string) {
    return this.__raw?.[key]
  }
}