import {z} from 'zod'

export type GetApiChannelsChannelIdCategoriesArgs = {channel_id: number};

export type GetApiChannelsChannelIdCategoriesOptions = {baseUrl?: string | undefined, oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const picture = z.object({active: z.boolean(), link: z.string().optional(), resource_key: z.string(), sizes: z.array(z.object({height: z.number().nullable(), link: z.string(), link_with_play_button: z.string().optional(), width: z.number()})), type: z.enum(["caution", "custom", "default"]), uri: z.string()});

export const category = z.object({icon: picture.optional(), last_video_featured_time: z.string(), link: z.string(), metadata: z.object({connections: z.object({channels: z.object({options: z.array(z.string()), total: z.number(), uri: z.string()}), groups: z.object({options: z.array(z.string()), total: z.number(), uri: z.string()}), users: z.object({options: z.array(z.string()), total: z.number(), uri: z.string()}), videos: z.object({options: z.array(z.string()), total: z.number(), uri: z.string()})}), interactions: z.object({follow: z.object({added: z.boolean(), added_time: z.string().nullable(), uri: z.string()})})}), name: z.string(), parent: z.object({link: z.string(), name: z.string(), uri: z.string()}).nullable(), pictures: picture, resource_key: z.string(), subcategories: z.array(z.object({link: z.string(), name: z.string(), uri: z.string()})).optional(), top_level: z.boolean(), uri: z.string()});

export const getApiChannelsChannelIdCategoriesResponse = z.array(category);

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 all the categories in a channel
 * 
 * GET /channels/{channel_id}/categories
 */
export const getApiChannelsChannelIdCategories = async (args: GetApiChannelsChannelIdCategoriesArgs, options?: GetApiChannelsChannelIdCategoriesOptions) => {
const {baseUrl = "https://api.vimeo.com", fetch: fetchFn = fetch, oauth2} = options ?? {}

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

if (oauth2 !== undefined) headers.set('authorization', `Bearer ${oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/channels/${encodeURIComponent(String(args.channel_id))}/categories${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(getApiChannelsChannelIdCategoriesResponse, await res.json())
};