import {z} from 'zod'

export type GetApiRtsMessagesArgs = {limit?: number | undefined, next?: string | undefined};

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

export const messageObject = z.object({id: z.number().gte(1), created_at: z.string(), title: z.string(), type: z.enum(["my_incident", "shared_incident", "arming", "trigger_action", "open_incident_verification", "verify_incident", "close_incident", "arrow_status_online", "arrow_status_offline", "camera_status_online", "camera_status_offline"]), short_message: z.string(), long_message: z.string(), is_read: z.boolean(), read_at: z.string().optional(), image: z.string().optional(), action_url: z.string().optional(), action_label: z.string().optional(), show_detail: z.boolean(), incident_sharing_url: z.string().optional()});

export const messageListResponse = z.object({count: z.number().int().gte(0), next: z.string().nullable(), previous: z.string().nullable(), results: z.array(messageObject)});

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 messages
 * 
 * GET /rts/messages/
 * 
 * Also accepts auth: PersonalAccessToken
 */
export const getApiRtsMessages = async (args: GetApiRtsMessagesArgs, options?: GetApiRtsMessagesOptions) => {
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.limit != null) query.append("limit", String(args.limit))
if (args.next != null) query.append("next", String(args.next))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

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