55 lines
1.4 KiB
TypeScript
55 lines
1.4 KiB
TypeScript
import { TelegramClient } from '../../client'
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import { Chat, MtCuteTypeAssertionError } from '../../types'
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import { assertTypeIs } from '../../utils/type-assertion'
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import { getMarkedPeerId } from '@mtcute/core'
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import { tl } from 'packages/tl'
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/**
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* Get nearby chats
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*
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* @param latitude Latitude of the location
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* @param longitude Longitude of the location
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* @internal
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*/
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export async function getNearbyChats(
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this: TelegramClient,
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latitude: number,
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longitude: number
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): Promise<Chat[]> {
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const res = await this.call({
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_: 'contacts.getLocated',
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geoPoint: {
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_: 'inputGeoPoint',
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lat: latitude,
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long: longitude,
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},
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})
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if (!(res._ === 'updates' || res._ === 'updatesCombined')) {
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throw new MtCuteTypeAssertionError(
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'contacts.getLocated',
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'updates | updatesCombined',
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res._
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)
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}
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if (!res.updates.length) return []
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assertTypeIs('contacts.getLocated (@ .updates[0])', res.updates[0], 'updatePeerLocated')
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const chats = res.chats.map((it) => new Chat(this, it))
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const index: Record<number, Chat> = {}
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chats.forEach((c) => index[c.id] = c)
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res.updates[0].peers.forEach((peer) => {
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if (peer._ === 'peerSelfLocated') return
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const id = getMarkedPeerId(peer.peer)
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if (index[id]) {
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(index[id] as tl.Mutable<Chat>).distance = peer.distance
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}
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})
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return chats
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}
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