88 lines
3.4 KiB
TypeScript
88 lines
3.4 KiB
TypeScript
import { useEffect, useState } from "react";
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import { DialogRow } from "./DialogListProvider";
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import { useDatabase } from "@/app/providers/DatabaseProvider/useDatabase";
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import { usePublicKey } from "../AccountProvider/usePublicKey";
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import { decodeWithPassword } from "@/app/crypto/crypto";
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import { constructLastMessageTextByAttachments } from "@/app/utils/constructLastMessageTextByAttachments";
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import { usePrivatePlain } from "../AccountProvider/usePrivatePlain";
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import { DeliveredMessageState, Message } from "../DialogProvider/DialogProvider";
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/**
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* Получает информацию о последнем сообщении в диалоге и количестве непрочитанных сообщений,
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* работает как с групповыми диалогами, так и с личными.
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* Последнее сообщение содержит расшифрованный текст в поле plain_message.
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* @param row Диалог из списка диалогов
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* @returns информация о последнем сообщении и количестве непрочитанных сообщений
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*/
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export function useDialogInfo(row : DialogRow) : {
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lastMessage: Message;
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unreaded: number;
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loading: boolean;
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} {
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const {getQuery} = useDatabase();
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const publicKey = usePublicKey();
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const privatePlain = usePrivatePlain();
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const [lastMessage, setLastMessage] = useState<Message>({
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from_public_key: '',
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to_public_key: '',
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content: '',
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timestamp: 0,
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chacha_key: '',
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readed: 0,
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from_me: 0,
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delivered: DeliveredMessageState.WAITING,
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message_id: '',
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plain_message: '',
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attachments: [],
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});
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const [unreaded, setUnreaded] = useState(0);
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useEffect(() => {
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loadLastMessageInfo();
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}, [row.last_timestamp]);
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const loadLastMessageInfo = async () => {
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let message = await getQuery(`SELECT * FROM messages WHERE message_id = ? AND account = ? LIMIT 1`, [row.last_message_id, publicKey]);
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if(!message){
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return;
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}
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let lastMessage = '';
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try{
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lastMessage = await decodeWithPassword(privatePlain, message.plain_message);
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}catch(e){
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lastMessage = constructLastMessageTextByAttachments(message.attachments);
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}
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setLastMessage({
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...message,
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plain_message: lastMessage,
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attachments: JSON.parse(message.attachments),
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});
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let unreadedCount = {
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count: 0
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};
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if(row.dialog_id.startsWith('#group:')){
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unreadedCount = await getQuery(`
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SELECT COUNT(*) as count
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FROM messages
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WHERE read = 0
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AND to_public_key = ?
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AND account = ?`, [row.dialog_id, publicKey]);
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}else{
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unreadedCount = await getQuery(`
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SELECT COUNT(*) as count
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FROM messages
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WHERE read = 0
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AND ((from_public_key = ? AND to_public_key = ?) OR (from_public_key = ? AND to_public_key = ?))
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AND account = ?`, [publicKey, row.dialog_id, row.dialog_id, publicKey, publicKey]);
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}
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setUnreaded(unreadedCount.count);
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}
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return {
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lastMessage,
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unreaded,
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loading: lastMessage.message_id == '',
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}
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} |