import {z} from 'zod'

export type AddressLookupV2RequestAttributes = {locality_lookup?: (Array<string> | null) | undefined, postal_code_lookup?: (Array<string> | null) | undefined};

export type Key = {type?: (string | null) | undefined, value?: (string | null) | undefined};

export type AddressInputComponentName = {forename?: (string | null) | undefined, middlename?: (string | null) | undefined, surname?: (string | null) | undefined};

export type AddressLookupV2Request = {country_iso: string, datasets: Array<string> | null, max_addresses?: (number | null) | undefined, max_suggestions?: (number | null) | undefined, attributes?: AddressLookupV2RequestAttributes | undefined, key?: Key | undefined, preferred_language?: (Array<string> | null) | undefined, preferred_script?: (Array<string> | null) | undefined, names?: (Array<AddressInputComponentName> | null) | undefined, layouts?: (Array<string> | null) | undefined};

export type CreateApiAddressLookupV2Args = {'Reference-Id'?: string | undefined, 'Timeout-Seconds'?: number | undefined, 'Add-Addresses'?: string | undefined, 'Add-FinalAddress'?: boolean | undefined, body: AddressLookupV2Request};

export type CreateApiAddressLookupV2Options = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const localityItem = z.object({name: z.string().nullable().optional(), code: z.string().nullable().optional(), description: z.string().nullable().optional()});

export const localityComponents = z.object({region: localityItem.optional(), sub_region: localityItem.optional(), town: localityItem.optional(), district: localityItem.optional(), sub_district: localityItem.optional(), type: z.string().nullable().optional()});

export const postalCode = z.object({full_name: z.string().nullable().optional(), primary: z.string().nullable().optional(), secondary: z.string().nullable().optional()});

export const what3WordsComponent = z.object({name: z.string().nullable().optional(), description: z.string().nullable().optional()});

export const suggestion = z.object({locality: localityComponents.optional(), postal_code: postalCode.optional(), postal_code_key: z.string().nullable().optional(), locality_key: z.string().nullable().optional(), what3words: what3WordsComponent.optional()});

export const addressSuggestionV2Hub = z.object({text: z.string().nullable().optional(), matched: z.array(z.array(z.number().int())).nullable().optional(), global_address_key: z.string().nullable().optional(), format: z.string().nullable().optional(), dataset: z.string().nullable().optional(), names: z.array(z.string()).nullable().optional(), uprn: z.string().nullable().optional()});

export const addressLookupV2ResultAddressFormatted = z.object({layout_name: z.string().nullable().optional(), address: z.record(z.string(), z.unknown()).nullable().optional()});

export const addressLookupV2Result = z.object({more_results_available: z.boolean().optional(), confidence: z.string().nullable().optional(), suggestions_key: z.string().nullable().optional(), suggestions_prompt: z.string().nullable().optional(), suggestions: z.array(suggestion).nullable().optional(), addresses: z.array(addressSuggestionV2Hub).nullable().optional(), addresses_formatted: z.array(addressLookupV2ResultAddressFormatted).nullable().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
};

/**
 * Lookup an address based on a key.
 * 
 * POST /address/lookup/v2
 * 
 * Also accepts auth: Auth-Token, x-app-key
 */
export const createApiAddressLookupV2 = async (args: CreateApiAddressLookupV2Args, options?: CreateApiAddressLookupV2Options) => {
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-Addresses'] != null) headers.set("Add-Addresses", String(args['Add-Addresses']))
if (args['Add-FinalAddress'] != null) headers.set("Add-FinalAddress", String(args['Add-FinalAddress']))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/address/lookup/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(addressLookupV2Result, await res.json())
};