import {z} from 'zod'

export type GetApiApiV1ConnectStatusOptions = {baseUrl: string, LocalUserJWT?: string | undefined, fetch?: typeof fetch | undefined};

export const connectHttpsStatus = z.object({state: z.enum(["stopped", "running", "error"]), port: z.number().nullable(), certExpiresAt: z.string().nullable(), lastError: z.string().nullable()});

export const connectStatusResponse = z.object({enabled: z.boolean(), state: z.enum(["disconnected", "connecting", "connected", "auth_failed", "not_approved", "suspended"]), hostname: z.string().nullable(), vanityHostname: z.string().nullable(), signingKeyFingerprint: z.string().nullable(), tokenExpiresAt: z.string().nullable(), publicPort: z.number().nullable(), directUrl: z.string().nullable(), relayUrl: z.string().nullable(), https: connectHttpsStatus});

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 Remote Access status.
 * 
 * GET /api/v1/connect/status
 */
export const getApiApiV1ConnectStatus = async (options: GetApiApiV1ConnectStatusOptions) => {
const {baseUrl, fetch: fetchFn = fetch, LocalUserJWT} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/connect/status${query.size > 0 ? `?${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(connectStatusResponse, await res.json())
};