import {z} from 'zod'

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

export const nNotificationMethodTypeEnum = z.enum(["email", "slack", "telegram", "webhook", "discord"]);

export const webhookHeaderOut = z.object({name: z.string(), value: z.string().nullable().optional()});

export const notificationMethodOut = z.object({id: z.number().int(), type: nNotificationMethodTypeEnum, name: z.string().nullable().optional(), value: z.string(), second_value: z.string().nullable().optional(), headers: z.array(webhookHeaderOut).nullable().optional(), extra_emails: z.array(z.string()).nullable().optional(), timestamp: z.string(), status: z.enum(["active", "suspended", "paused"]).optional(), suspended_at: z.string().nullable().optional(), consecutive_failures: z.number().int().optional(), failing_since: z.string().nullable().optional(), last_failure_at: z.string().nullable().optional(), last_success_at: z.string().nullable().optional(), last_error: z.string().nullable().optional()});

export const getApiNotificationMethodsResponse = z.array(notificationMethodOut);

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
};

/**
 * List notification methods
 * 
 * GET /notification_methods
 */
export const getApiNotificationMethods = async (options?: GetApiNotificationMethodsOptions) => {
const {baseUrl = "https://api.leakradar.io", 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 = `${baseUrl.replace(/\/+$/, '')}/notification_methods${query.size > 0 ? `?${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(getApiNotificationMethodsResponse, await res.json())
};