import {z} from 'zod'

export type GetApiApiV1UsersFollowersArgs = {user_id?: string | undefined, cursor?: string | undefined, limit?: number | undefined, account_id: string};

export type GetApiApiV1UsersFollowersOptions = {baseUrl?: string | undefined, AccessToken?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiApiV1UsersFollowersResponse = z.object({object: z.literal("UserFollowersList"), items: z.array(z.union([z.object({object: z.literal("UserFollower"), id: z.string(), urn: z.string(), name: z.string(), headline: z.string(), profile_url: z.string(), profile_picture_url: z.union([z.string(), z.unknown()]), profile_picture_url_large: z.union([z.string(), z.unknown()])}), z.object({object: z.literal("UserFollower"), id: z.string(), messaging_id: z.string(), username: z.string(), name: z.string(), profile_picture_url: z.union([z.string(), z.unknown()]).optional(), is_private: z.boolean(), is_verified: z.boolean()})])), cursor: z.union([z.unknown(), z.unknown()])});

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 all followers
 * 
 * GET /api/v1/users/followers
 */
export const getApiApiV1UsersFollowers = async (args: GetApiApiV1UsersFollowersArgs, options?: GetApiApiV1UsersFollowersOptions) => {
const {baseUrl = "https://api1.unipile.com:13111", fetch: fetchFn = fetch, AccessToken} = options ?? {}

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

if (args.user_id != null) query.append("user_id", String(args.user_id))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.account_id != null) query.append("account_id", String(args.account_id))
if (AccessToken !== undefined) headers.set("X-API-KEY", AccessToken)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/users/followers${query.size > 0 ? `?${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(getApiApiV1UsersFollowersResponse, await res.json())
};