import {z} from 'zod'

export type CreateApiZillowGetPropertyArgs = {body: {property_id: string}};

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

export const zillowPriceHistoryEvent = z.object({date_posted: z.string().optional(), price: z.number().nullable().optional(), time_epoch: z.number().int().optional(), price_per_square_foot: z.number().nullable().optional(), price_change_rate: z.number().optional(), event: z.string().optional(), source: z.string().optional(), is_rental: z.boolean().optional()});

export const zillowProperty = z.object({property_id: z.number().int().optional(), address: z.object({streetAddress: z.string().optional(), zipcode: z.string().optional(), city: z.string().optional(), state: z.string().optional(), buildingId: z.number().int().optional()}).optional(), photos: z.array(z.string()).optional(), bathrooms: z.number().nullable().optional(), bedrooms: z.number().int().nullable().optional(), living_area: z.number().nullable().optional(), year_built: z.number().int().nullable().optional(), property_type: z.string().optional(), listing_status: z.string().optional(), days_on_zillow: z.number().int().nullable().optional(), price: z.number().optional(), zestimate: z.number().nullable().optional(), rent_zestimate: z.number().nullable().optional(), price_history: z.array(zillowPriceHistoryEvent).optional()});

export const createApiZillowGetPropertyResponse = z.object({property: zillowProperty.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
};

/**
 * Get property details from Zillow
 * 
 * POST /zillow/get-property
 */
export const createApiZillowGetProperty = async (args: CreateApiZillowGetPropertyArgs, options?: CreateApiZillowGetPropertyOptions) => {
const {baseUrl = "https://api.exfunc.dev", 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 (apiKey !== undefined) headers.set("x-api-key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/zillow/get-property${query.size > 0 ? `?${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(createApiZillowGetPropertyResponse, await res.json())
};