import type { AxiosError, AxiosResponse } from 'axios'
import type { z } from 'zod'

type SafeIssue = {
  code: string
  message: string
  path: string
}

export type SafeApiDiagnostic = {
  code?: string
  httpStatus?: number
  issues?: SafeIssue[]
  method?: string
  path?: string
  type: 'AxiosError' | 'Response' | 'ValidationError'
}

/**
 * 网络诊断只能描述请求形态，不得复制请求/响应 body、headers 或完整 URL。
 * 这些字段可能包含手机号、userId、sessionId、签名和其它业务数据。
 */
function requestShape(response: AxiosResponse<unknown>) {
  return {
    httpStatus: response.status,
    method: response.config.method?.toUpperCase(),
    path: response.config.url,
  }
}

export function createResponseDiagnostic(response: AxiosResponse<unknown>): SafeApiDiagnostic {
  return { type: 'Response', ...requestShape(response) }
}

export function createValidationDiagnostic(
  response: AxiosResponse<unknown>,
  issues: z.ZodIssue[],
): SafeApiDiagnostic {
  return {
    type: 'ValidationError',
    ...requestShape(response),
    issues: issues.map(issue => ({
      code: issue.code,
      message: issue.message,
      path: issue.path.join('.'),
    })),
  }
}

export function createAxiosDiagnostic(error: AxiosError): SafeApiDiagnostic {
  return {
    type: 'AxiosError',
    code: error.code,
    httpStatus: error.response?.status,
    method: error.config?.method?.toUpperCase(),
    path: error.config?.url,
  }
}