import {z} from 'zod'

export type CreateApiV3AddressPrivateValidateArgs = {address: string, mailbox_verification?: boolean | undefined};

export type CreateApiV3AddressPrivateValidateOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const githubComMailgunValidationsValidationAddressParts = z.object({display_name: z.object({}), domain: z.object({}), local_part: z.object({})});

export const githubComMailgunValidationsValidationV3Response = z.object({address: z.string(), did_you_mean: z.object({}), is_disposable_address: z.boolean(), is_role_address: z.boolean(), is_valid: z.boolean(), mailbox_verification: z.string(), parts: githubComMailgunValidationsValidationAddressParts.nullable(), reason: z.object({})});

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
};

/**
 * Validate Address V3
 * 
 * POST /v3/address/private/validate
 */
export const createApiV3AddressPrivateValidate = async (args: CreateApiV3AddressPrivateValidateArgs, options?: CreateApiV3AddressPrivateValidateOptions) => {
const {baseUrl = "https://api.mailgun.net", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (args.address != null) query.append("address", String(args.address))
if (args.mailbox_verification != null) query.append("mailbox_verification", String(args.mailbox_verification))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v3/address/private/validate${query.size > 0 ? `?${query}` : ''}`

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

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

return validateResponse(githubComMailgunValidationsValidationV3Response, await res.json())
};