import {z} from 'zod'

export type CreateApiMultigeocodeSearchArgs = {key: unknown, body: {query: string, at: {lat: number, lng: number}, limit?: number | undefined, radius?: string | undefined, country?: string | undefined, state?: string | undefined, city?: string | undefined, street?: string | undefined, district?: string | undefined, subDistrict?: string | undefined}};

export type CreateApiMultigeocodeSearchOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const place = z.array(z.object({geopoint: z.object({lat: z.number().optional(), lng: z.number().optional()}).optional(), country: z.string().optional(), state: z.string().optional(), city: z.string().optional(), district: z.string().optional(), subDistrict: z.string().optional(), street: z.string().optional(), postalCode: z.string().optional(), house: z.string().optional(), building: z.string().optional(), poi: z.object({title: z.string().optional()}).optional(), address: z.string().optional()}));

export const dataSource = z.object({source: z.string().optional(), refId: z.string().optional(), status: z.enum(["enable", "disable"]).optional()});

export const createApiMultigeocodeSearchResponse = z.object({entities: z.array(z.object({docId: z.string().optional(), place: place.optional(), dataSource: dataSource.optional(), score: z.number().int().optional()})).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
};

/**
 * Search Place
 * 
 * POST /multigeocode/search
 */
export const createApiMultigeocodeSearch = async (args: CreateApiMultigeocodeSearchArgs, options?: CreateApiMultigeocodeSearchOptions) => {
const {baseUrl = "https://api.nextbillion.io", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.key != null) query.append("key", String(args.key))
if (apiKey !== undefined) query.set("key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/multigeocode/search${query.size > 0 ? `?${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(createApiMultigeocodeSearchResponse, await res.json())
};