import {z} from 'zod'

export type GetApiApiV3NotificationUserTriggerDisplayArgs = {trigger: string, display: string};

export type GetApiApiV3NotificationUserTriggerDisplayOptions = {baseUrl: string, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const notificationTemplate = z.object({body: z.string(), footer: z.string().optional(), title: z.string()});

export const notificationItem = z.object({id: z.string(), vars: z.object({title: z.string(), body: z.string(), accessed: z.string().optional(), name: z.string().optional()}).optional(), text: z.string().optional()});

export const notification = z.object({action_id: z.string(), template_id: z.string(), template: notificationTemplate, force_accept: z.boolean(), notifications: z.array(notificationItem)});

export const getUserNotificationsResponse = z.object({notifications: z.record(z.string(), notification)});

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 the notifications for the user
 * 
 * GET /api/v3/notification/user/{trigger}/{display}
 */
export const getApiApiV3NotificationUserTriggerDisplay = async (args: GetApiApiV3NotificationUserTriggerDisplayArgs, options: GetApiApiV3NotificationUserTriggerDisplayOptions) => {
const {baseUrl, fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v3/notification/user/${encodeURIComponent(String(args.trigger))}/${encodeURIComponent(String(args.display))}${query.size > 0 ? `?${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(getUserNotificationsResponse, await res.json())
};