import {z} from 'zod'

export type PaginationRequestSchema = {offset: number, page_size: number};

export type MarketSearchByTermRequestSchema = {search_term: string, pagination: PaginationRequestSchema};

export type MarketSearchByLatLngRequestSchema = {lat: number, lng: number, pagination: PaginationRequestSchema};

export type CreateApiMarketSearchArgs = {body: MarketSearchByTermRequestSchema | MarketSearchByLatLngRequestSchema};

export type CreateApiMarketSearchOptions = {baseUrl?: string | undefined, headerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const marketSearchMarketResultSchema = z.object({id: z.number().int(), name: z.string(), type: z.literal("market"), listing_count: z.number().int(), location_name: z.string(), location: z.object({state: z.string().nullable(), country: z.string(), country_code: z.string()}), legacy_location: z.object({city_names: z.array(z.string()), zipcodes: z.array(z.string()), neighborhoods: z.array(z.string())})});

export const marketSearchSubmarketResultSchema = z.object({id: z.number().int(), name: z.string(), type: z.literal("submarket"), listing_count: z.number().int(), location_name: z.string(), location: z.object({state: z.string().nullable(), country: z.string(), country_code: z.string()}), legacy_location: z.object({city_names: z.array(z.string()), zipcodes: z.array(z.string()), neighborhoods: z.array(z.string())}), parent_market: z.object({id: z.string(), name: z.string()}).nullable()});

export const marketSearchResponseSchema = z.object({page_info: z.object({page_size: z.number().gte(1).lte(25), offset: z.number().gte(0)}), results: z.array(z.union([marketSearchMarketResultSchema, marketSearchSubmarketResultSchema]))});

export const status = z.object({type: z.enum(["success", "error"]), response_id: z.string(), message: z.string()});

export const createApiMarketSearchResponse = z.object({payload: marketSearchResponseSchema, status: status});

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 for a Market or Submarket by Search Term or Coordinates.
 * 
 * POST /market/search
 */
export const createApiMarketSearch = async (args: CreateApiMarketSearchArgs, options?: CreateApiMarketSearchOptions) => {
const {baseUrl = "https://api.airdna.co/api/enterprise/v2", fetch: fetchFn = fetch, headerAuth} = options ?? {}

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

if (headerAuth !== undefined) headers.set('authorization', `Bearer ${headerAuth}`)

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