import {z} from 'zod'

export type GetApiCamerasCameraIdArgs = {camera_id: number, refresh_rate?: number | undefined, max_width?: number | undefined, max_height?: number | undefined, stream_expires_at?: string | undefined};

export type GetApiCamerasCameraIdOptions = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const snapshotObject = z.object({url: z.string().nullable(), created_at: z.string()}).nullable();

export const streamObject = z.object({url: z.string(), format: z.enum(["hls", "mp4", "mpegts", "mjpeg"]), refresh_rate: z.number().optional()});

export const applicationObject = z.object({code: z.enum(["LSA", "CRA", "VVA", "VPA", "TLA"])});

export const cameraObject = z.object({id: z.number().int().gte(1), name: z.string(), location: z.number().int().nullable(), site: z.number().int().nullable(), type: z.enum(["h264", "h265", "mjpeg"]), snapshot: snapshotObject, status: z.enum(["offline", "online", "unknown"]), event_api_hash: z.string().optional(), live_snapshot: z.string().nullable(), streams: z.array(streamObject), applications: z.array(applicationObject), low_latency_enabled: z.boolean(), audio_enabled: z.boolean(), enable_status_checks: z.boolean(), enable_periodical_snapshots: z.boolean(), tags: z.array(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
};

/**
 * Retrieve camera
 * 
 * GET /cameras/{camera_id}/
 * 
 * Also accepts auth: PersonalAccessToken
 */
export const getApiCamerasCameraId = async (args: GetApiCamerasCameraIdArgs, options?: GetApiCamerasCameraIdOptions) => {
const {baseUrl = "https://api.angelcam.com/v1", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (args.refresh_rate != null) query.append("refresh_rate", String(args.refresh_rate))
if (args.max_width != null) query.append("max_width", String(args.max_width))
if (args.max_height != null) query.append("max_height", String(args.max_height))
if (args.stream_expires_at != null) query.append("stream_expires_at", String(args.stream_expires_at))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/cameras/${encodeURIComponent(String(args.camera_id))}/${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(cameraObject, await res.json())
};