import {z} from 'zod'

export type EmailValidationV2Request = {email: string};

export type CreateApiEmailValidateV2Args = {'Reference-Id'?: (string | null) | undefined, 'Timeout-Seconds'?: (number | null) | undefined, 'Add-Metadata'?: (boolean | null) | undefined, body: EmailValidationV2Request};

export type CreateApiEmailValidateV2Options = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const responseError = z.object({type: z.string().nullable().optional(), title: z.string().nullable().optional(), detail: z.string().nullable().optional(), instance: z.string().nullable().optional()});

export const emailValidationV2Confidence = z.enum(["verified", "undeliverable", "unreachable", "illegitimate", "disposable", "unknown"]);

export const emailValidationV2VerboseOutput = z.enum(["verified", "mailboxDisabled", "mailboxDoesNotExist", "mailboxFull", "syntaxFailure", "internationalCharactersUnsupported", "unreachable", "illegitimate", "roleAccount", "typoDomain", "localPartSpamTrap", "Profanity", "disposable", "unknown", "timeout", "acceptAll", "relayDenied", "BLANK"]);

export const emailValidationV2Result = z.object({email: z.string().optional(), confidence: emailValidationV2Confidence.optional(), verbose_output: emailValidationV2VerboseOutput.optional(), did_you_mean: z.array(z.string()).nullable().optional()});

export const emailValidationV2DomainDetail = z.object({type: z.enum(["consumer", "business"]).optional()});

export const emailValidationV2Metadata = z.object({domain_detail: emailValidationV2DomainDetail.optional(), normalized_email: z.string().nullable().optional()});

export const emailValidationV2Response = z.object({error: responseError.optional(), result: emailValidationV2Result.optional(), metadata: emailValidationV2Metadata.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
};

/**
 * Submits an email address to the service to be validated and returns the result of the validation.
 * 
 * POST /email/validate/v2
 * 
 * Also accepts auth: Auth-Token
 */
export const createApiEmailValidateV2 = async (args: CreateApiEmailValidateV2Args, options?: CreateApiEmailValidateV2Options) => {
const {baseUrl = "https://api.experianaperture.io", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (args['Reference-Id'] != null) headers.set("Reference-Id", String(args['Reference-Id']))
if (args['Timeout-Seconds'] != null) headers.set("Timeout-Seconds", String(args['Timeout-Seconds']))
if (args['Add-Metadata'] != null) headers.set("Add-Metadata", String(args['Add-Metadata']))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/email/validate/v2${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

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

return validateResponse(emailValidationV2Response, await res.json())
};