import {z} from 'zod'

export type CustomDeviceId = string;

export type NrfMessageType = number;

export type Mcc = number;

export type Mnc = number | string;

export type Tac = number;

export type Eci = number;

export type Rsrp = number;

export type FilteredEphemerisFlag = boolean;

export type SatelliteMaskAngle = number;

export type AssistanceRequest = {types?: Array<NrfMessageType> | undefined, mcc?: Mcc | undefined, mnc?: Mnc | undefined, tac?: Tac | undefined, eci?: Eci | undefined, rsrp?: Rsrp | undefined, filtered?: FilteredEphemerisFlag | undefined, mask?: SatelliteMaskAngle | undefined};

export type CreateApiLocationAgnssArgs = {range?: string | undefined, 'x-custom-device-id'?: CustomDeviceId | undefined, body: AssistanceRequest};

export type CreateApiLocationAgnssOptions = {baseUrl?: string | undefined, OrganizationAuthToken?: string | undefined, fetch?: typeof fetch | undefined};

export const assistanceResponseBuffer = z.string();

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
};

/**
 * GetAssistanceData
 * 
 * POST /location/agnss
 * 
 * Also accepts auth: JSON Web Token
 */
export const createApiLocationAgnss = async (args: CreateApiLocationAgnssArgs, options?: CreateApiLocationAgnssOptions) => {
const {baseUrl = "https://api.nrfcloud.com/v1", fetch: fetchFn = fetch, OrganizationAuthToken} = options ?? {}

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

if (args.range != null) headers.set("range", String(args.range))
if (args['x-custom-device-id'] != null) headers.set("x-custom-device-id", String(args['x-custom-device-id']))
if (OrganizationAuthToken !== undefined) headers.set('authorization', `Bearer ${OrganizationAuthToken}`)

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