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FastGPT/src/pages/chat/share.tsx
2023-05-15 22:33:35 +08:00

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import React, { useCallback, useState, useRef, useMemo, useEffect, MouseEvent } from 'react';
import { useRouter } from 'next/router';
import { initShareChatInfo } from '@/api/chat';
import type { ChatSiteItemType, ExportChatType } from '@/types/chat';
import {
Textarea,
Box,
Flex,
useColorModeValue,
Menu,
MenuButton,
MenuList,
MenuItem,
Image,
Button,
Modal,
ModalOverlay,
ModalContent,
ModalBody,
ModalCloseButton,
useDisclosure,
Drawer,
DrawerOverlay,
DrawerContent,
Card,
Tooltip,
useOutsideClick,
useTheme,
Input,
ModalFooter,
ModalHeader
} from '@chakra-ui/react';
import { useToast } from '@/hooks/useToast';
import { useScreen } from '@/hooks/useScreen';
import { useQuery } from '@tanstack/react-query';
import dynamic from 'next/dynamic';
import { useCopyData, voiceBroadcast } from '@/utils/tools';
import { streamFetch } from '@/api/fetch';
import MyIcon from '@/components/Icon';
import { throttle } from 'lodash';
import { Types } from 'mongoose';
import Markdown from '@/components/Markdown';
import { LOGO_ICON } from '@/constants/chat';
import { useChatStore } from '@/store/chat';
import { useLoading } from '@/hooks/useLoading';
import { fileDownload } from '@/utils/file';
import { htmlTemplate } from '@/constants/common';
import { useUserStore } from '@/store/user';
import Loading from '@/components/Loading';
const ShareHistory = dynamic(() => import('./components/ShareHistory'), {
loading: () => <Loading fixed={false} />,
ssr: false
});
const Empty = dynamic(() => import('./components/Empty'), {
loading: () => <Loading fixed={false} />,
ssr: false
});
import styles from './index.module.scss';
const textareaMinH = '22px';
const Chat = ({
shareId,
historyId,
isPcDevice
}: {
shareId: string;
historyId: string;
isPcDevice: boolean;
}) => {
const hasVoiceApi = typeof window === 'undefined' ? false : !!window.speechSynthesis;
const router = useRouter();
const theme = useTheme();
const ChatBox = useRef<HTMLDivElement>(null);
const TextareaDom = useRef<HTMLTextAreaElement>(null);
const ContextMenuRef = useRef(null);
const PhoneContextShow = useRef(false);
// 中断请求
const controller = useRef(new AbortController());
const isLeavePage = useRef(false);
const [inputVal, setInputVal] = useState(''); // user input prompt
const [showSystemPrompt, setShowSystemPrompt] = useState('');
const [messageContextMenuData, setMessageContextMenuData] = useState<{
// message messageContextMenuData
left: number;
top: number;
message: ChatSiteItemType;
}>();
const [foldSliderBar, setFoldSlideBar] = useState(false);
const {
password,
setPassword,
shareChatHistory,
delShareHistoryById,
setShareChatHistory,
shareChatData,
setShareChatData,
delShareChatHistoryItemById,
delShareChatHistory
} = useChatStore();
const isChatting = useMemo(
() => shareChatData.history[shareChatData.history.length - 1]?.status === 'loading',
[shareChatData.history]
);
const { toast } = useToast();
const { copyData } = useCopyData();
const { isPc } = useScreen({ defaultIsPc: isPcDevice });
const { Loading, setIsLoading } = useLoading();
const { userInfo } = useUserStore();
const { isOpen: isOpenSlider, onClose: onCloseSlider, onOpen: onOpenSlider } = useDisclosure();
const {
isOpen: isOpenPassword,
onClose: onClosePassword,
onOpen: onOpenPassword
} = useDisclosure();
// close contextMenu
useOutsideClick({
ref: ContextMenuRef,
handler: () => {
// 移动端长按后会将其设置为true松手时候也会触发一次松手的时候需要忽略一次。
if (PhoneContextShow.current) {
PhoneContextShow.current = false;
} else {
messageContextMenuData &&
setTimeout(() => {
setMessageContextMenuData(undefined);
window.getSelection?.()?.empty?.();
window.getSelection?.()?.removeAllRanges?.();
document?.getSelection()?.empty();
});
}
}
});
// 滚动到底部
const scrollToBottom = useCallback((behavior: 'smooth' | 'auto' = 'smooth') => {
if (!ChatBox.current) return;
ChatBox.current.scrollTo({
top: ChatBox.current.scrollHeight,
behavior
});
}, []);
// 聊天信息生成中……获取当前滚动条位置,判断是否需要滚动到底部
// eslint-disable-next-line react-hooks/exhaustive-deps
const generatingMessage = useCallback(
throttle(() => {
if (!ChatBox.current) return;
const isBottom =
ChatBox.current.scrollTop + ChatBox.current.clientHeight + 150 >=
ChatBox.current.scrollHeight;
isBottom && scrollToBottom('auto');
}, 100),
[]
);
// 重置输入内容
const resetInputVal = useCallback((val: string) => {
setInputVal(val);
setTimeout(() => {
/* 回到最小高度 */
if (TextareaDom.current) {
TextareaDom.current.style.height =
val === '' ? textareaMinH : `${TextareaDom.current.scrollHeight}px`;
}
}, 100);
}, []);
// gpt 对话
const gptChatPrompt = useCallback(
async (prompts: ChatSiteItemType[]) => {
// create abort obj
const abortSignal = new AbortController();
controller.current = abortSignal;
isLeavePage.current = false;
const formatPrompts = prompts.map((item) => ({
obj: item.obj,
value: item.value
}));
// 流请求,获取数据
const { responseText, systemPrompt } = await streamFetch({
url: '/api/chat/shareChat/chat',
data: {
prompts: formatPrompts.slice(-shareChatData.maxContext - 1, -1),
password,
shareId,
historyId
},
onMessage: (text: string) => {
setShareChatData((state) => ({
...state,
history: state.history.map((item, index) => {
if (index !== state.history.length - 1) return item;
return {
...item,
value: item.value + text
};
})
}));
generatingMessage();
},
abortSignal
});
// 重置了页面,说明退出了当前聊天, 不缓存任何内容
if (isLeavePage.current) {
return;
}
let responseHistory: ChatSiteItemType[] = [];
// 设置聊天内容为完成状态
setShareChatData((state) => {
responseHistory = state.history.map((item, index) => {
if (index !== state.history.length - 1) return item;
return {
...item,
status: 'finish',
systemPrompt
};
});
return {
...state,
history: responseHistory
};
});
setShareChatHistory({
historyId,
shareId,
title: formatPrompts[formatPrompts.length - 2].value,
latestChat: responseText,
chats: responseHistory
});
setTimeout(() => {
generatingMessage();
}, 100);
},
[
generatingMessage,
historyId,
password,
setShareChatData,
setShareChatHistory,
shareChatData.maxContext,
shareId
]
);
/**
* 发送一个内容
*/
const sendPrompt = useCallback(async () => {
if (isChatting) {
toast({
title: '正在聊天中...请等待结束',
status: 'warning'
});
return;
}
const storeInput = inputVal;
// 去除空行
const val = inputVal.trim().replace(/\n\s*/g, '\n');
if (!val) {
toast({
title: '内容为空',
status: 'warning'
});
return;
}
const newChatList: ChatSiteItemType[] = [
...shareChatData.history,
{
_id: String(new Types.ObjectId()),
obj: 'Human',
value: val,
status: 'finish'
},
{
_id: String(new Types.ObjectId()),
obj: 'AI',
value: '',
status: 'loading'
}
];
// 插入内容
setShareChatData((state) => ({
...state,
history: newChatList
}));
// 清空输入内容
resetInputVal('');
setTimeout(() => {
scrollToBottom();
}, 100);
try {
await gptChatPrompt(newChatList);
} catch (err: any) {
toast({
title: typeof err === 'string' ? err : err?.message || '聊天出错了~',
status: 'warning',
duration: 5000,
isClosable: true
});
resetInputVal(storeInput);
setShareChatData((state) => ({
...state,
history: newChatList.slice(0, newChatList.length - 2)
}));
}
}, [
isChatting,
inputVal,
shareChatData.history,
setShareChatData,
resetInputVal,
toast,
scrollToBottom,
gptChatPrompt
]);
// 复制内容
const onclickCopy = useCallback(
(value: string) => {
const val = value.replace(/\n+/g, '\n');
copyData(val);
},
[copyData]
);
// export chat data
const onclickExportChat = useCallback(
(type: ExportChatType) => {
const getHistoryHtml = () => {
const historyDom = document.getElementById('history');
if (!historyDom) return;
const dom = Array.from(historyDom.children).map((child, i) => {
const avatar = `<img src="${
child.querySelector<HTMLImageElement>('.avatar')?.src
}" alt="" />`;
const chatContent = child.querySelector<HTMLDivElement>('.markdown');
if (!chatContent) {
return '';
}
const chatContentClone = chatContent.cloneNode(true) as HTMLDivElement;
const codeHeader = chatContentClone.querySelectorAll('.code-header');
codeHeader.forEach((childElement: any) => {
childElement.remove();
});
return `<div class="chat-item">
${avatar}
${chatContentClone.outerHTML}
</div>`;
});
const html = htmlTemplate.replace('{{CHAT_CONTENT}}', dom.join('\n'));
return html;
};
const map: Record<ExportChatType, () => void> = {
md: () => {
fileDownload({
text: shareChatData.history.map((item) => item.value).join('\n\n'),
type: 'text/markdown',
filename: 'chat.md'
});
},
html: () => {
const html = getHistoryHtml();
html &&
fileDownload({
text: html,
type: 'text/html',
filename: '聊天记录.html'
});
},
pdf: () => {
const html = getHistoryHtml();
html &&
// @ts-ignore
html2pdf(html, {
margin: 0,
filename: `聊天记录.pdf`
});
}
};
map[type]();
},
[shareChatData.history]
);
// onclick chat message context
const onclickContextMenu = useCallback(
(e: MouseEvent<HTMLDivElement>, message: ChatSiteItemType) => {
e.preventDefault(); // 阻止默认右键菜单
// select all text
const range = document.createRange();
range.selectNodeContents(e.currentTarget as HTMLDivElement);
window.getSelection()?.removeAllRanges();
window.getSelection()?.addRange(range);
navigator.vibrate?.(50); // 震动 50 毫秒
if (!isPcDevice) {
PhoneContextShow.current = true;
}
setMessageContextMenuData({
left: e.clientX - 20,
top: e.clientY,
message
});
return false;
},
[isPcDevice]
);
// 获取对话信息
const loadChatInfo = useCallback(async () => {
setIsLoading(true);
try {
const res = await initShareChatInfo({
shareId,
password
});
const history = shareChatHistory.find((item) => item._id === historyId)?.chats || [];
setShareChatData({
...res,
history
});
onClosePassword();
history.length > 0 &&
setTimeout(() => {
scrollToBottom();
}, 500);
} catch (e: any) {
toast({
status: 'error',
title: typeof e === 'string' ? e : e?.message || '初始化异常'
});
if (e?.code === 501) {
onOpenPassword();
} else {
delShareChatHistory(shareId);
router.replace(`/chat/share`);
}
}
setIsLoading(false);
return null;
}, [
setIsLoading,
shareId,
password,
setShareChatData,
shareChatHistory,
onClosePassword,
historyId,
scrollToBottom,
toast,
onOpenPassword,
delShareChatHistory,
router
]);
// 初始化聊天框
useQuery(['init', historyId], () => {
if (!shareId) {
return null;
}
if (!historyId) {
router.replace(`/chat/share?shareId=${shareId}&historyId=${new Types.ObjectId()}`);
return null;
}
return loadChatInfo();
});
// abort stream
useEffect(() => {
return () => {
window.speechSynthesis?.cancel();
isLeavePage.current = true;
controller.current?.abort();
};
}, [shareId, historyId]);
// context menu component
const RenderContextMenu = useCallback(
({ history, index }: { history: ChatSiteItemType; index: number }) => (
<MenuList fontSize={'sm'} minW={'100px !important'}>
<MenuItem onClick={() => onclickCopy(history.value)}></MenuItem>
{hasVoiceApi && (
<MenuItem
borderBottom={theme.borders.base}
onClick={() => voiceBroadcast({ text: history.value })}
>
</MenuItem>
)}
<MenuItem onClick={() => delShareChatHistoryItemById(historyId, index)}></MenuItem>
</MenuList>
),
[delShareChatHistoryItemById, hasVoiceApi, historyId, onclickCopy, theme.borders.base]
);
return (
<Flex
h={'100%'}
flexDirection={['column', 'row']}
backgroundColor={useColorModeValue('#fdfdfd', '')}
>
{/* pc always show history. */}
{isPc && (
<Box
position={'relative'}
flex={foldSliderBar ? '0 0 0' : [1, '0 0 250px', '0 0 280px', '0 0 310px', '0 0 340px']}
w={['100%', 0]}
h={'100%'}
zIndex={1}
transition={'0.2s'}
_hover={{
'& > div': { visibility: 'visible', opacity: 1 }
}}
>
<Flex
position={'absolute'}
right={0}
top={'50%'}
transform={'translate(50%,-50%)'}
alignItems={'center'}
justifyContent={'flex-end'}
pr={1}
w={'36px'}
h={'50px'}
borderRadius={'10px'}
bg={'rgba(0,0,0,0.5)'}
cursor={'pointer'}
transition={'0.2s'}
{...(foldSliderBar
? {
opacity: 0.6
}
: {
visibility: 'hidden',
opacity: 0
})}
onClick={() => setFoldSlideBar(!foldSliderBar)}
>
<MyIcon
name={'back'}
transform={foldSliderBar ? 'rotate(180deg)' : ''}
w={'14px'}
color={'white'}
/>
</Flex>
<Box position={'relative'} h={'100%'} bg={'white'} overflow={'hidden'}>
<ShareHistory
onclickDelHistory={delShareHistoryById}
onclickExportChat={onclickExportChat}
onCloseSlider={onCloseSlider}
isPcDevice={isPcDevice}
/>
</Box>
</Box>
)}
{/* 聊天内容 */}
<Flex
position={'relative'}
h={[0, '100%']}
w={['100%', 0]}
flex={'1 0 0'}
flexDirection={'column'}
>
{/* chat header */}
<Flex
alignItems={'center'}
justifyContent={'space-between'}
py={[3, 5]}
px={5}
borderBottom={'1px solid '}
borderBottomColor={useColorModeValue('gray.200', 'gray.700')}
color={useColorModeValue('myGray.900', 'white')}
>
{!isPc && (
<MyIcon
name={'tabbarMore'}
w={'14px'}
h={'14px'}
color={useColorModeValue('blackAlpha.700', 'white')}
onClick={onOpenSlider}
/>
)}
<Box
cursor={'pointer'}
lineHeight={1.2}
textAlign={'center'}
px={3}
fontSize={['sm', 'md']}
>
{shareChatData.model.name}
{shareChatData.history.length > 0 ? ` (${shareChatData.history.length})` : ''}
</Box>
{shareChatData.history.length > 0 ? (
<Menu autoSelect={false}>
<MenuButton lineHeight={1}>
<MyIcon
name={'more'}
w={'16px'}
h={'16px'}
color={useColorModeValue('blackAlpha.700', 'white')}
/>
</MenuButton>
<MenuList minW={`90px !important`}>
<MenuItem onClick={() => router.replace(`/chat/share?shareId=${shareId}`)}>
</MenuItem>
<MenuItem
onClick={() => {
delShareHistoryById(historyId);
router.replace(`/chat/share?shareId=${shareId}`);
}}
>
</MenuItem>
<MenuItem onClick={() => onclickExportChat('html')}>HTML格式</MenuItem>
<MenuItem onClick={() => onclickExportChat('pdf')}>PDF格式</MenuItem>
<MenuItem onClick={() => onclickExportChat('md')}>Markdown格式</MenuItem>
</MenuList>
</Menu>
) : (
<Box w={'16px'} h={'16px'} />
)}
</Flex>
{/* chat content box */}
<Box ref={ChatBox} pb={[4, 0]} flex={'1 0 0'} h={0} w={'100%'} overflow={'overlay'}>
<Box id={'history'}>
{shareChatData.history.map((item, index) => (
<Flex key={item._id} alignItems={'flex-start'} py={2} px={[2, 6, 8]}>
{item.obj === 'Human' && <Box flex={1} />}
{/* avatar */}
<Menu autoSelect={false} isLazy>
<MenuButton
as={Box}
{...(item.obj === 'AI'
? {
order: 1,
mr: ['6px', 2]
}
: {
order: 3,
ml: ['6px', 2]
})}
>
<Tooltip label={item.obj === 'AI' ? 'AI助手详情' : ''}>
<Image
className="avatar"
src={
item.obj === 'Human'
? userInfo?.avatar || '/icon/human.png'
: shareChatData.model.avatar || LOGO_ICON
}
alt="avatar"
w={['20px', '34px']}
h={['20px', '34px']}
borderRadius={'50%'}
objectFit={'contain'}
/>
</Tooltip>
</MenuButton>
{!isPc && <RenderContextMenu history={item} index={index} />}
</Menu>
{/* message */}
<Flex order={2} pt={2} maxW={['calc(100% - 50px)', '80%']}>
{item.obj === 'AI' ? (
<Box w={'100%'}>
<Card
bg={'white'}
px={4}
py={3}
borderRadius={'0 8px 8px 8px'}
onContextMenu={(e) => onclickContextMenu(e, item)}
>
<Markdown
source={item.value}
isChatting={isChatting && index === shareChatData.history.length - 1}
/>
{item.systemPrompt && (
<Button
size={'xs'}
mt={2}
fontWeight={'normal'}
colorScheme={'gray'}
variant={'outline'}
w={'90px'}
onClick={() => setShowSystemPrompt(item.systemPrompt || '')}
>
</Button>
)}
</Card>
</Box>
) : (
<Box>
<Card
className="markdown"
whiteSpace={'pre-wrap'}
px={4}
py={3}
borderRadius={'8px 0 8px 8px'}
bg={'myBlue.300'}
onContextMenu={(e) => onclickContextMenu(e, item)}
>
<Box as={'p'}>{item.value}</Box>
</Card>
</Box>
)}
</Flex>
</Flex>
))}
{shareChatData.history.length === 0 && <Empty model={shareChatData.model} />}
</Box>
</Box>
{/* 发送区 */}
<Box m={['0 auto', '20px auto']} w={'100%'} maxW={['auto', 'min(750px, 100%)']}>
<Box
py={'18px'}
position={'relative'}
boxShadow={`0 0 10px rgba(0,0,0,0.1)`}
borderTop={['1px solid', 0]}
borderTopColor={useColorModeValue('gray.200', 'gray.700')}
borderRadius={['none', 'md']}
backgroundColor={useColorModeValue('white', 'gray.700')}
>
{/* 输入框 */}
<Textarea
ref={TextareaDom}
py={0}
pr={['45px', '55px']}
border={'none'}
_focusVisible={{
border: 'none'
}}
placeholder="提问"
resize={'none'}
value={inputVal}
rows={1}
height={'22px'}
lineHeight={'22px'}
maxHeight={'150px'}
maxLength={-1}
overflowY={'auto'}
whiteSpace={'pre-wrap'}
wordBreak={'break-all'}
boxShadow={'none !important'}
color={useColorModeValue('blackAlpha.700', 'white')}
onChange={(e) => {
const textarea = e.target;
setInputVal(textarea.value);
textarea.style.height = textareaMinH;
textarea.style.height = `${textarea.scrollHeight}px`;
}}
onKeyDown={(e) => {
// 触发快捷发送
if (isPcDevice && e.keyCode === 13 && !e.shiftKey) {
sendPrompt();
e.preventDefault();
}
// 全选内容
// @ts-ignore
e.key === 'a' && e.ctrlKey && e.target?.select();
}}
/>
{/* 发送和等待按键 */}
<Flex
alignItems={'center'}
justifyContent={'center'}
h={'25px'}
w={'25px'}
position={'absolute'}
right={['12px', '20px']}
bottom={'15px'}
>
{isChatting ? (
<MyIcon
className={styles.stopIcon}
width={['22px', '25px']}
height={['22px', '25px']}
cursor={'pointer'}
name={'stop'}
color={useColorModeValue('gray.500', 'white')}
onClick={() => {
controller.current?.abort();
}}
/>
) : (
<MyIcon
name={'chatSend'}
width={['18px', '20px']}
height={['18px', '20px']}
cursor={'pointer'}
color={useColorModeValue('gray.500', 'white')}
onClick={sendPrompt}
/>
)}
</Flex>
</Box>
</Box>
<Loading fixed={false} />
</Flex>
{/* phone slider */}
{!isPc && (
<Drawer isOpen={isOpenSlider} placement="left" size={'xs'} onClose={onCloseSlider}>
<DrawerOverlay backgroundColor={'rgba(255,255,255,0.5)'} />
<DrawerContent maxWidth={'250px'}>
<ShareHistory
onclickDelHistory={delShareHistoryById}
onclickExportChat={onclickExportChat}
onCloseSlider={onCloseSlider}
isPcDevice={isPcDevice}
/>
</DrawerContent>
</Drawer>
)}
{/* system prompt show modal */}
{
<Modal isOpen={!!showSystemPrompt} onClose={() => setShowSystemPrompt('')}>
<ModalOverlay />
<ModalContent maxW={'min(90vw, 600px)'} pr={2} maxH={'80vh'} overflowY={'auto'}>
<ModalCloseButton />
<ModalBody pt={5} whiteSpace={'pre-wrap'} textAlign={'justify'}>
{showSystemPrompt}
</ModalBody>
</ModalContent>
</Modal>
}
{/* context menu */}
{messageContextMenuData && (
<Box
zIndex={10}
position={'fixed'}
top={messageContextMenuData.top}
left={messageContextMenuData.left}
>
<Box ref={ContextMenuRef}></Box>
<Menu isOpen>
<RenderContextMenu
history={messageContextMenuData.message}
index={shareChatData.history.findIndex(
(item) => item._id === messageContextMenuData.message._id
)}
/>
</Menu>
</Box>
)}
{/* password input */}
{
<Modal isOpen={isOpenPassword} onClose={onClosePassword}>
<ModalOverlay />
<ModalContent>
<ModalCloseButton />
<ModalHeader></ModalHeader>
<ModalBody>
<Flex alignItems={'center'}>
<Box flex={'0 0 70px'}></Box>
<Input
type="password"
autoFocus
placeholder="使用密码,无密码直接点确认"
onBlur={(e) => setPassword(e.target.value)}
/>
</Flex>
</ModalBody>
<ModalFooter>
<Button variant={'outline'} mr={3} onClick={onClosePassword}>
</Button>
<Button onClick={loadChatInfo}></Button>
</ModalFooter>
</ModalContent>
</Modal>
}
</Flex>
);
};
Chat.getInitialProps = ({ query, req }: any) => {
return {
shareId: query?.shareId || '',
historyId: query?.historyId || '',
isPcDevice: !/Mobile/.test(req ? req.headers['user-agent'] : navigator.userAgent)
};
};
export default Chat;