import { ApiPromise } from "@polkadot/api";
import {
  CuratorGroup,
  CuratorGroupId,
  Channel,
  ChannelCategory,
  ChannelCategoryId,
  Video,
  VideoId,
} from "@joystream/types/content";
import { ChannelId } from "@joystream/types/storage";
import { Hash } from "@polkadot/types/interfaces";

export const getCuratorGroup = (
  api: ApiPromise,
  id: CuratorGroupId | number
): Promise<CuratorGroup> =>
  api.query.content.curatorGroupById(id) as Promise<CuratorGroup>;

export const getChannel = (
  api: ApiPromise,
  id: ChannelId | number
): Promise<Channel> => api.query.content.channelById(id) as Promise<Channel>;

export const getChannelCategory = (
  api: ApiPromise,
  id: ChannelCategoryId | number
): Promise<ChannelCategory> =>
  api.query.content.channelCategoryById(id) as Promise<ChannelCategory>;

export const getVideo = (
  api: ApiPromise,
  id: VideoId | number
): Promise<Video> => api.query.content.videoById(id) as Promise<Video>;

export const getVideoCategory = (
  api: ApiPromise,
  id: VideoId | number
): Promise<Video> => api.query.content.videoCategoryById(id) as Promise<Video>;

export const getNextChannel = (
  api: ApiPromise,
  hash?: Hash
): Promise<ChannelId> =>
  hash
    ? (api.query.content.nextChannelId.at(hash) as Promise<ChannelId>)
    : (api.query.content.nextChannelId() as Promise<ChannelId>);

export const getNextChannelCategory = (
  api: ApiPromise,
  hash?: Hash
): Promise<ChannelCategoryId> =>
  hash
    ? api.query.content.nextChannelCategoryId.at(hash)
    : (api.query.content.nextChannelCategoryId() as Promise<ChannelCategoryId>);

export const getNextCuratorGroup = (
  api: ApiPromise,
  hash?: Hash
): Promise<CuratorGroupId> =>
  hash
    ? api.query.content.nextCuratorGroupId.at(hash)
    : (api.query.content.nextCuratorGroupId() as Promise<CuratorGroupId>);

export const getNextPerson = (api: ApiPromise, hash?: Hash): Promise<number> =>
  hash
    ? api.query.content.nextPersonId.at(hash)
    : (api.query.content.nextPersonId() as any);

export const getNextPlaylist = (
  api: ApiPromise,
  hash?: Hash
): Promise<number> =>
  hash
    ? api.query.content.nextPlaylistId.at(hash)
    : (api.query.content.nextPlaylistId() as any);

export const getNextSeries = (api: ApiPromise, hash?: Hash): Promise<number> =>
  hash
    ? api.query.content.nextSeriesId.at(hash)
    : (api.query.content.nextSeriesId() as any);

export const getNextVideo = (api: ApiPromise, hash?: Hash): Promise<number> =>
  hash
    ? api.query.content.nextVideoId.at(hash)
    : (api.query.content.nextVideoId() as any);

export const getNextVideoCategory = (
  api: ApiPromise,
  hash?: Hash
): Promise<number> =>
  hash
    ? api.query.content.nextVideoCategoryId.at(hash)
    : (api.query.content.nextVideoCategoryId() as any);