import {z} from 'zod'

export type GetApiForumsFeedOptionsOptions = {baseUrl?: string | undefined, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const respForumModel = z.object({forum_id: z.number().int(), forum_title: z.string(), forum_description: z.string(), forum_thread_count: z.number().int(), forum_post_count: z.number().int(), parent_node_id: z.number().int(), node_type_id: z.string(), icon_content: z.string(), active_icon_content: z.string(), forum_rules_thread_id: z.number().int(), isLike2Node: z.boolean(), forum_prefixes: z.array(z.object({group_title: z.string(), group_prefixes: z.array(z.object({prefix_id: z.number().int(), css_class: z.string(), prefix_title: z.string()}))})), thread_default_prefix_id: z.number().int(), thread_prefix_is_required: z.boolean(), links: z.object({permalink: z.string(), detail: z.string(), "sub-categories": z.string(), "sub-forums": z.string(), threads: z.string(), followers: z.string()}), permissions: z.object({view: z.boolean(), edit: z.boolean(), delete: z.boolean(), create_thread: z.boolean(), tag_thread: z.boolean(), follow: z.boolean()}), forum_is_followed: z.boolean(), forum_moderators: z.array(z.unknown())});

export const respSystemInfo = z.object({visitor_id: z.number().int(), time: z.number().int(), log_id: z.number().int()});

export const getApiForumsFeedOptionsResponse = z.object({forums: z.array(respForumModel), excluded_forums_ids: z.array(z.number().int()), default_excluded_forums_ids: z.array(z.number().int()), keywords: z.string(), system_info: respSystemInfo});

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 Feed Options
 * 
 * GET /forums/feed/options
 */
export const getApiForumsFeedOptions = async (options?: GetApiForumsFeedOptionsOptions) => {
const {baseUrl = "https://api.lolz.team", fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/forums/feed/options${query.size > 0 ? `?${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(getApiForumsFeedOptionsResponse, await res.json())
};