import {z} from 'zod'

export type GetApiAddressSuggestionsStepinV1GlobalAddressKeyArgs = {'Reference-Id'?: string | undefined, 'Timeout-Seconds'?: number | undefined, global_address_key: string};

export type GetApiAddressSuggestionsStepinV1GlobalAddressKeyOptions = {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 addressNameValuePair = z.object({name: z.string().nullable().optional(), value: z.string().nullable().optional()});

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

export const addressSearchV1Result = 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(addressSuggestion).nullable().optional()});

export const addressSuggestionsV1Response = z.object({error: responseError.optional(), result: addressSearchV1Result.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
};

/**
 * Step into a suggestion.
 * 
 * GET /address/suggestions/stepin/v1/{global_address_key}
 * 
 * Also accepts auth: Auth-Token, x-app-key
 */
export const getApiAddressSuggestionsStepinV1GlobalAddressKey = async (args: GetApiAddressSuggestionsStepinV1GlobalAddressKeyArgs, options?: GetApiAddressSuggestionsStepinV1GlobalAddressKeyOptions) => {
const {baseUrl = "https://api.experianaperture.io", fetch: fetchFn = fetch, OAuth2} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
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 (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/address/suggestions/stepin/v1/${encodeURIComponent(String(args.global_address_key))}${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(addressSuggestionsV1Response, await res.json())
};