import { JsonDecoder } from 'ts.data.json'
import VK from '..'
import { User, userDecoder } from '../models/user'
import makeVkRequest from '../utils/makeVkRequest'

export interface ConversationMember {
  member_id: number
  invited_by: number
  join_date: number
  is_admin: boolean
}

export interface MessagesGetConversationMembersResponse {
  count: number
  items: Array<ConversationMember>
  profiles: Array<User>
  groups: Array<unknown>
}

const conversationMemberDecoder = JsonDecoder.object<ConversationMember>(
  {
    member_id: JsonDecoder.number,
    invited_by: JsonDecoder.number,
    join_date: JsonDecoder.number,
    is_admin: JsonDecoder.oneOf([JsonDecoder.boolean, JsonDecoder.isUndefined(false)], 'Is admin'),
  },
  'Conversation member decoder'
)

const messagesGetConversationMembersDecoder = JsonDecoder.object<MessagesGetConversationMembersResponse>(
  {
    count: JsonDecoder.number,
    items: JsonDecoder.array(conversationMemberDecoder, 'Items decoder'),
    profiles: JsonDecoder.array(userDecoder, 'Profiles decoder'),
    groups: JsonDecoder.array(JsonDecoder.succeed, 'Groups decoder'),
  },
  'messages.getConversationMembers decoder'
)

const messagesGetConversationMembers = async (
  vk: VK,
  peerId: number
): Promise<MessagesGetConversationMembersResponse> =>
  await makeVkRequest(
    'messages.getConversationMembers',
    vk.accessToken,
    vk.settings.lang,
    messagesGetConversationMembersDecoder,
    {
      peer_id: peerId,
      fields: 'sex',
    }
  )

export default messagesGetConversationMembers