import {z} from 'zod'

export type CreateCircleInput = {center: {lat: number, lon: number}, radius: number};

export type Denoise = number;

export type Mode = 'car' | 'truck';

export type DepatureTime = number;

export type DtoGeofenceEntityCreate = {custom_id?: string | undefined, type: 'circle' | 'polygon' | 'isochrone', name?: string | undefined, tags?: Array<string> | undefined, meta_data?: Record<string, never> | undefined, circle?: CreateCircleInput | undefined, polygon?: {geojson: {type: string, coordinates: Array<Array<number>>}} | undefined, isochrone?: ({coordinates: string, denoise?: Denoise | undefined, mode?: Mode | undefined, contours_meter?: number | undefined, contours_minute?: number | undefined, departure_time?: DepatureTime | undefined}) | undefined};

export type CreateApiGeofenceConsolePreviewArgs = {body: DtoGeofenceEntityCreate};

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

export const polygonGeojson = z.object({type: z.string().optional(), coordinates: z.array(z.array(z.number())).optional()});

export const dtoPreviewGeofenceResp = z.object({message: z.string().optional(), data: z.object({geojson: polygonGeojson.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
};

/**
 * preview geofence geojson
 * 
 * POST /geofence/console/preview
 */
export const createApiGeofenceConsolePreview = async (args: CreateApiGeofenceConsolePreviewArgs, options?: CreateApiGeofenceConsolePreviewOptions) => {
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 (apiKey !== undefined) query.set("key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/geofence/console/preview${query.size > 0 ? `?${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(dtoPreviewGeofenceResp, await res.json())
};