import {z} from 'zod'

export type GetApiApiExtRouteArgs = {port_unlocode_from?: string | undefined, port_uuid_from?: string | undefined, lat_from?: number | undefined, lon_from?: number | undefined, port_unlocode_to?: string | undefined, port_uuid_to?: string | undefined, lat_to?: number | undefined, lon_to?: number | undefined};

export type GetApiApiExtRouteOptions = {baseUrl?: string | undefined, ApiKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const meta = z.object({duration: z.number().optional(), endpoint: z.string().optional(), success: z.boolean().optional(), next: z.string().optional()});

export const getApiApiExtRouteResponse = z.object({data: z.object({distance_nm: z.number().optional(), waypoints: z.array(z.object({lat: z.number().optional(), lon: z.number().optional()})).optional()}).optional(), meta: meta.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
};

/**
 * Calculate sea route between two points
 * 
 * GET /api/ext/route
 * 
 * Also accepts auth: ApiKeyQuery
 */
export const getApiApiExtRoute = async (args: GetApiApiExtRouteArgs, options?: GetApiApiExtRouteOptions) => {
const {baseUrl = "https://api.datalastic.com", fetch: fetchFn = fetch, ApiKeyHeader} = options ?? {}

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

if (args.port_unlocode_from != null) query.append("port_unlocode_from", String(args.port_unlocode_from))
if (args.port_uuid_from != null) query.append("port_uuid_from", String(args.port_uuid_from))
if (args.lat_from != null) query.append("lat_from", String(args.lat_from))
if (args.lon_from != null) query.append("lon_from", String(args.lon_from))
if (args.port_unlocode_to != null) query.append("port_unlocode_to", String(args.port_unlocode_to))
if (args.port_uuid_to != null) query.append("port_uuid_to", String(args.port_uuid_to))
if (args.lat_to != null) query.append("lat_to", String(args.lat_to))
if (args.lon_to != null) query.append("lon_to", String(args.lon_to))
if (ApiKeyHeader !== undefined) headers.set("x-api-key", ApiKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/api/ext/route${query.size > 0 ? `?${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(getApiApiExtRouteResponse, await res.json())
};