import {z} from 'zod'

export type GetApiTrackerUniqueObjectsArgs = {fromTimestamp: string, toTimestamp: string, sensorIds?: Array<string> | undefined, objectId?: string | undefined, place?: string | undefined, globalId?: string | undefined, maxResultSize?: number | undefined};

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

export const location = z.array(z.number());

export const mTMCBehavior = z.object({id: z.string().max(10000).optional(), sensorId: z.string().max(10000), objectId: z.string().max(10000), objectType: z.string().max(10000).optional(), timestamp: z.string().max(24), end: z.string().max(24), startFrame: z.string().max(100000).optional(), endFrame: z.string().max(100000).optional(), place: z.string().max(10000).optional(), locations: z.array(location).optional()});

export const mTMCObject = z.object({batchId: z.string().max(10000), globalId: z.string().max(10000), timestamp: z.string().max(24), end: z.string().max(24), objectType: z.string().max(10000), matched: z.array(mTMCBehavior)});

export const mTMCObjects = z.object({uniqueObjects: z.array(mTMCObject)});

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 tracked objects
 * 
 * GET /tracker/unique-objects
 */
export const getApiTrackerUniqueObjects = async (args: GetApiTrackerUniqueObjectsArgs, options?: GetApiTrackerUniqueObjectsOptions) => {
const {baseUrl = "https://ai.nvidia.com/api/v3.3/analytics", fetch: fetchFn = fetch} = options ?? {}

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

if (args.fromTimestamp != null) query.append("fromTimestamp", String(args.fromTimestamp))
if (args.toTimestamp != null) query.append("toTimestamp", String(args.toTimestamp))
for (const item of args.sensorIds ?? []) query.append("sensorIds", String(item))
if (args.objectId != null) query.append("objectId", String(args.objectId))
if (args.place != null) query.append("place", String(args.place))
if (args.globalId != null) query.append("globalId", String(args.globalId))
if (args.maxResultSize != null) query.append("maxResultSize", String(args.maxResultSize))

const url = `${baseUrl.replace(/\/+$/, '')}/tracker/unique-objects${query.size > 0 ? `?${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(mTMCObjects, await res.json())
};