import {z} from 'zod'

export type CreateApiMeArgs = {body: {'option[creation_watch_state]'?: string | undefined, 'option[interaction_watch_state]'?: string | undefined, 'option[content_show_signature]'?: boolean | undefined, 'option[email_on_conversation]'?: boolean | undefined, 'option[push_on_conversation]'?: boolean | undefined, 'option[receive_admin_email]'?: boolean | undefined, 'option[show_dob_year]'?: boolean | undefined, 'option[show_dob_date]'?: boolean | undefined, 'profile[location]'?: string | undefined, 'profile[website]'?: string | undefined, 'profile[about]'?: string | undefined, 'profile[signature]'?: string | undefined, 'privacy[allow_view_profile]'?: string | undefined, 'privacy[allow_post_profile]'?: string | undefined, 'privacy[allow_receive_news_feed]'?: string | undefined, 'privacy[allow_send_personal_conversation]'?: string | undefined, 'privacy[allow_view_identities]'?: string | undefined, visible?: boolean | undefined, activity_visible?: boolean | undefined, timezone?: string | undefined, custom_title?: string | undefined, 'custom_fields[<name>]'?: string | undefined}};

export type CreateApiMeOptions = {baseUrl?: string | undefined, XFOAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiMeResponse = z.object({success: z.boolean().optional()});

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
};

/**
 * Update information about the current user
 * 
 * POST /me/
 * 
 * Also accepts auth: XF-Api-Key
 */
export const createApiMe = async (args: CreateApiMeArgs, options?: CreateApiMeOptions) => {
const {baseUrl = "https://example.com/api", fetch: fetchFn = fetch, XFOAuth2} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/x-www-form-urlencoded")
headers.set('accept', "application/json")

if (XFOAuth2 !== undefined) headers.set('authorization', `Bearer ${XFOAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/me/${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: new URLSearchParams(Object.entries(args.body).flatMap(([key, value]) => (value == null ? [] : [[key, String(value)]])))})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiMeResponse, await res.json())
};