import {z} from 'zod'

export type GetApiV11EmailVerifyArgs = {email: string, timeout?: number | undefined};

export type GetApiV11EmailVerifyOptions = {baseUrl?: string | undefined, apikeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const emailRecord = z.object({email: z.string(), status: z.enum(["deliverable", "risky", "undeliverable", "unknown"]), reason: z.enum(["accepted_email", "low_deliverability", "low_quality", "invalid_email", "invalid_domain", "rejected_email", "dns_error", "unavailable_smtp", "unsupported", "timeout", "unknown"]), domain: z.object({name: z.string(), acceptAll: z.enum(["yes", "no", "unknown"]), disposable: z.enum(["yes", "no", "unknown"]), free: z.enum(["yes", "no", "unknown"])}).optional(), account: z.object({role: z.enum(["yes", "no", "unknown"]), disabled: z.enum(["yes", "no", "unknown"]), fullMailbox: z.enum(["yes", "no", "unknown"])}).optional(), dns: z.object({type: z.string(), record: z.string().optional()}).optional(), provider: z.string().optional(), score: z.number().int().gte(0).lte(100).optional(), toxic: z.string().optional(), toxicity: z.number().int().gte(0).lte(5).optional(), retryAfter: z.string().optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Verify email
 * 
 * GET /v1.1/email/verify
 */
export const getApiV11EmailVerify = async (args: GetApiV11EmailVerifyArgs, options?: GetApiV11EmailVerifyOptions) => {
const {baseUrl = "https://api.usebouncer.com", fetch: fetchFn = fetch, apikeyAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.email != null) query.append("email", String(args.email))
if (args.timeout != null) query.append("timeout", String(args.timeout))
if (apikeyAuth !== undefined) headers.set("x-api-key", apikeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/v1.1/email/verify${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(emailRecord, await res.json())
};