Files
FastGPT/client/src/components/ChatBox/index.tsx
2023-07-28 16:09:10 +08:00

819 lines
24 KiB
TypeScript

import React, {
useCallback,
useRef,
useState,
useMemo,
forwardRef,
useImperativeHandle,
ForwardedRef,
useEffect
} from 'react';
import { throttle } from 'lodash';
import {
ChatHistoryItemResType,
ChatItemType,
ChatSiteItemType,
ExportChatType
} from '@/types/chat';
import { useToast } from '@/hooks/useToast';
import {
useCopyData,
voiceBroadcast,
cancelBroadcast,
hasVoiceApi,
getErrText
} from '@/utils/tools';
import { Box, Card, Flex, Input, Textarea, Button, useTheme, BoxProps } from '@chakra-ui/react';
import { feConfigs } from '@/store/static';
import { Types } from 'mongoose';
import { EventNameEnum } from '../Markdown/constant';
import { adaptChatItem_openAI } from '@/utils/plugin/openai';
import { useMarkdown } from '@/hooks/useMarkdown';
import { VariableItemType } from '@/types/app';
import { VariableInputEnum } from '@/constants/app';
import { useForm } from 'react-hook-form';
import { MessageItemType } from '@/pages/api/openapi/v1/chat/completions';
import { fileDownload } from '@/utils/file';
import { htmlTemplate } from '@/constants/common';
import { useRouter } from 'next/router';
import { useGlobalStore } from '@/store/global';
import { TaskResponseKeyEnum } from '@/constants/chat';
import MyIcon from '@/components/Icon';
import Avatar from '@/components/Avatar';
import Markdown from '@/components/Markdown';
import MySelect from '@/components/Select';
import MyTooltip from '../MyTooltip';
import dynamic from 'next/dynamic';
const ResponseDetailModal = dynamic(() => import('./ResponseDetailModal'));
import styles from './index.module.scss';
const textareaMinH = '22px';
export type StartChatFnProps = {
messages: MessageItemType[];
controller: AbortController;
variables: Record<string, any>;
generatingMessage: (text: string) => void;
};
export type ComponentRef = {
getChatHistory: () => ChatSiteItemType[];
resetVariables: (data?: Record<string, any>) => void;
resetHistory: (chatId: ChatSiteItemType[]) => void;
scrollToBottom: (behavior?: 'smooth' | 'auto') => void;
};
const VariableLabel = ({
required = false,
children
}: {
required?: boolean;
children: React.ReactNode | string;
}) => (
<Box as={'label'} display={'inline-block'} position={'relative'} mb={1}>
{children}
{required && (
<Box position={'absolute'} top={'-2px'} right={'-10px'} color={'red.500'} fontWeight={'bold'}>
*
</Box>
)}
</Box>
);
const Empty = () => {
const { data: chatProblem } = useMarkdown({ url: '/chatProblem.md' });
const { data: versionIntro } = useMarkdown({ url: '/versionIntro.md' });
return (
<Box
pt={[6, 0]}
w={'85%'}
maxW={'600px'}
m={'auto'}
alignItems={'center'}
justifyContent={'center'}
>
{/* version intro */}
<Card p={4} mb={10}>
<Markdown source={versionIntro} />
</Card>
<Card p={4}>
<Markdown source={chatProblem} />
</Card>
</Box>
);
};
const ChatAvatar = ({ src, type }: { src?: string; type: 'Human' | 'AI' }) => {
const theme = useTheme();
return (
<Box
w={['28px', '34px']}
h={['28px', '34px']}
p={'2px'}
borderRadius={'lg'}
border={theme.borders.base}
boxShadow={'0 0 5px rgba(0,0,0,0.1)'}
bg={type === 'Human' ? 'white' : 'myBlue.100'}
>
<Avatar src={src} w={'100%'} h={'100%'} />
</Box>
);
};
const ChatBox = (
{
showEmptyIntro = false,
chatId,
appAvatar,
userAvatar,
variableModules,
welcomeText,
onUpdateVariable,
onStartChat,
onDelMessage
}: {
showEmptyIntro?: boolean;
chatId?: string;
appAvatar?: string;
userAvatar?: string;
variableModules?: VariableItemType[];
welcomeText?: string;
onUpdateVariable?: (e: Record<string, any>) => void;
onStartChat: (e: StartChatFnProps) => Promise<{
responseText: string;
[TaskResponseKeyEnum.responseData]: ChatHistoryItemResType[];
}>;
onDelMessage?: (e: { contentId?: string; index: number }) => void;
},
ref: ForwardedRef<ComponentRef>
) => {
const ChatBoxRef = useRef<HTMLDivElement>(null);
const theme = useTheme();
const router = useRouter();
const { copyData } = useCopyData();
const { toast } = useToast();
const { isPc } = useGlobalStore();
const TextareaDom = useRef<HTMLTextAreaElement>(null);
const controller = useRef(new AbortController());
const [refresh, setRefresh] = useState(false);
const [variables, setVariables] = useState<Record<string, any>>({});
const [chatHistory, setChatHistory] = useState<ChatSiteItemType[]>([]);
const isChatting = useMemo(
() => chatHistory[chatHistory.length - 1]?.status === 'loading',
[chatHistory]
);
const variableIsFinish = useMemo(() => {
if (!variableModules || chatHistory.length > 0) return true;
for (let i = 0; i < variableModules.length; i++) {
const item = variableModules[i];
if (item.required && !variables[item.key]) {
return false;
}
}
return true;
}, [chatHistory.length, variableModules, variables]);
const { register, reset, getValues, setValue, handleSubmit } = useForm<Record<string, any>>({
defaultValues: variables
});
// 滚动到底部
const scrollToBottom = useCallback(
(behavior: 'smooth' | 'auto' = 'smooth') => {
if (!ChatBoxRef.current) return;
ChatBoxRef.current.scrollTo({
top: ChatBoxRef.current.scrollHeight,
behavior
});
},
[ChatBoxRef]
);
// 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
const generatingScroll = useCallback(
throttle(() => {
if (!ChatBoxRef.current) return;
const isBottom =
ChatBoxRef.current.scrollTop + ChatBoxRef.current.clientHeight + 150 >=
ChatBoxRef.current.scrollHeight;
isBottom && scrollToBottom('auto');
}, 100),
[]
);
// eslint-disable-next-line react-hooks/exhaustive-deps
const generatingMessage = useCallback(
(text: string) => {
setChatHistory((state) =>
state.map((item, index) => {
if (index !== state.length - 1) return item;
return {
...item,
value: item.value + text
};
})
);
generatingScroll();
},
[generatingScroll, setChatHistory]
);
// 复制内容
const onclickCopy = useCallback(
(value: string) => {
const val = value.replace(/\n+/g, '\n');
copyData(val);
},
[copyData]
);
// 重置输入内容
const resetInputVal = useCallback((val: string) => {
if (!TextareaDom.current) return;
setTimeout(() => {
/* 回到最小高度 */
if (TextareaDom.current) {
TextareaDom.current.value = val;
TextareaDom.current.style.height =
val === '' ? textareaMinH : `${TextareaDom.current.scrollHeight}px`;
}
}, 100);
}, []);
/**
* user confirm send prompt
*/
const sendPrompt = useCallback(
async (data: Record<string, any> = {}, inputVal = '') => {
if (isChatting) {
toast({
title: '正在聊天中...请等待结束',
status: 'warning'
});
return;
}
// get input value
const val = inputVal.trim().replace(/\n\s*/g, '\n');
if (!val) {
toast({
title: '内容为空',
status: 'warning'
});
return;
}
const newChatList: ChatSiteItemType[] = [
...chatHistory,
{
_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
setChatHistory(newChatList);
// 清空输入内容
resetInputVal('');
setTimeout(() => {
scrollToBottom();
}, 100);
try {
// create abort obj
const abortSignal = new AbortController();
controller.current = abortSignal;
const messages = adaptChatItem_openAI({ messages: newChatList, reserveId: true });
const { responseData } = await onStartChat({
messages,
controller: abortSignal,
generatingMessage,
variables: data
});
// set finish status
setChatHistory((state) =>
state.map((item, index) => {
if (index !== state.length - 1) return item;
return {
...item,
status: 'finish',
responseData
};
})
);
setTimeout(() => {
generatingScroll();
isPc && TextareaDom.current?.focus();
}, 100);
} catch (err: any) {
toast({
title: getErrText(err, '聊天出错了~'),
status: 'error',
duration: 5000,
isClosable: true
});
if (!err?.responseText) {
resetInputVal(inputVal);
setChatHistory(newChatList.slice(0, newChatList.length - 2));
}
// set finish status
setChatHistory((state) =>
state.map((item, index) => {
if (index !== state.length - 1) return item;
return {
...item,
status: 'finish'
};
})
);
}
},
[
isChatting,
chatHistory,
resetInputVal,
toast,
scrollToBottom,
onStartChat,
generatingMessage,
generatingScroll,
isPc
]
);
useImperativeHandle(ref, () => ({
getChatHistory: () => chatHistory,
resetVariables(e) {
const defaultVal: Record<string, any> = {};
variableModules?.forEach((item) => {
defaultVal[item.key] = '';
});
reset(e || defaultVal);
setVariables(e || defaultVal);
},
resetHistory(e) {
setChatHistory(e);
},
scrollToBottom
}));
const controlIconStyle = {
w: '14px',
cursor: 'pointer',
p: 1,
bg: 'white',
borderRadius: 'lg',
boxShadow: '0 0 5px rgba(0,0,0,0.1)',
border: theme.borders.base,
mr: 3
};
const controlContainerStyle = {
className: 'control',
color: 'myGray.400',
display: ['flex', 'none'],
pl: 1,
mt: 2
};
const MessageCardStyle: BoxProps = {
px: 4,
py: 3,
borderRadius: '0 8px 8px 8px',
boxShadow: '0 0 8px rgba(0,0,0,0.15)'
};
const messageCardMaxW = ['calc(100% - 25px)', 'calc(100% - 40px)'];
const showEmpty = useMemo(
() =>
feConfigs?.show_emptyChat &&
showEmptyIntro &&
chatHistory.length === 0 &&
!variableModules?.length &&
!welcomeText,
[chatHistory.length, showEmptyIntro, variableModules, welcomeText]
);
useEffect(() => {
return () => {
controller.current?.abort();
// close voice
cancelBroadcast();
};
}, [router.query]);
useEffect(() => {
const listen = () => {
cancelBroadcast();
};
window.addEventListener('beforeunload', listen);
return () => {
window.removeEventListener('beforeunload', listen);
};
}, []);
return (
<Flex flexDirection={'column'} h={'100%'}>
<Box
ref={ChatBoxRef}
flex={'1 0 0'}
h={0}
w={'100%'}
overflow={'overlay'}
px={[4, 0]}
mt={[0, 5]}
pb={3}
>
<Box maxW={['100%', '92%']} h={'100%'} mx={'auto'}>
{showEmpty && <Empty />}
{!!welcomeText && (
<Flex flexDirection={'column'} alignItems={'flex-start'} py={2}>
{/* avatar */}
<ChatAvatar src={appAvatar} type={'AI'} />
{/* message */}
<Card order={2} mt={2} {...MessageCardStyle} bg={'white'} maxW={messageCardMaxW}>
<Markdown
source={`~~~guide \n${welcomeText}`}
isChatting={false}
onClick={(e) => {
const val = e?.data;
if (e?.event !== EventNameEnum.guideClick || !val) return;
handleSubmit((data) => sendPrompt(data, val))();
}}
/>
</Card>
</Flex>
)}
{/* variable input */}
{!!variableModules?.length && (
<Flex flexDirection={'column'} alignItems={'flex-start'} py={2}>
{/* avatar */}
<ChatAvatar src={appAvatar} type={'AI'} />
{/* message */}
<Card
order={2}
mt={2}
bg={'white'}
w={'400px'}
maxW={messageCardMaxW}
{...MessageCardStyle}
>
{variableModules.map((item) => (
<Box key={item.id} mb={4}>
<VariableLabel required={item.required}>{item.label}</VariableLabel>
{item.type === VariableInputEnum.input && (
<Input
isDisabled={variableIsFinish}
{...register(item.key, {
required: item.required
})}
/>
)}
{item.type === VariableInputEnum.select && (
<MySelect
width={'100%'}
isDisabled={variableIsFinish}
list={(item.enums || []).map((item) => ({
label: item.value,
value: item.value
}))}
value={getValues(item.key)}
onchange={(e) => {
setValue(item.key, e);
setRefresh(!refresh);
}}
/>
)}
</Box>
))}
{!variableIsFinish && (
<Button
leftIcon={<MyIcon name={'chatFill'} w={'16px'} />}
size={'sm'}
maxW={'100px'}
borderRadius={'lg'}
onClick={handleSubmit((data) => {
onUpdateVariable?.(data);
setVariables(data);
})}
>
{'开始对话'}
</Button>
)}
</Card>
</Flex>
)}
{/* chat history */}
<Box id={'history'}>
{chatHistory.map((item, index) => (
<Flex
position={'relative'}
key={item._id}
flexDirection={'column'}
alignItems={item.obj === 'Human' ? 'flex-end' : 'flex-start'}
py={5}
_hover={{
'& .control': {
display: item.status === 'finish' ? 'flex' : 'none'
}
}}
>
{item.obj === 'Human' && (
<>
<Flex w={'100%'} alignItems={'center'} justifyContent={'flex-end'}>
<Flex {...controlContainerStyle} justifyContent={'flex-end'} mr={3}>
<MyTooltip label={'复制'}>
<MyIcon
{...controlIconStyle}
name={'copy'}
_hover={{ color: 'myBlue.700' }}
onClick={() => onclickCopy(item.value)}
/>
</MyTooltip>
{onDelMessage && (
<MyTooltip label={'删除'}>
<MyIcon
{...controlIconStyle}
mr={0}
name={'delete'}
_hover={{ color: 'red.600' }}
onClick={() => {
setChatHistory((state) =>
state.filter((chat) => chat._id !== item._id)
);
onDelMessage({
contentId: item._id,
index
});
}}
/>
</MyTooltip>
)}
</Flex>
<ChatAvatar src={userAvatar} type={'Human'} />
</Flex>
<Box position={'relative'} maxW={messageCardMaxW} mt={['6px', 2]}>
<Card
className="markdown"
whiteSpace={'pre-wrap'}
{...MessageCardStyle}
bg={'myBlue.300'}
borderRadius={'8px 0 8px 8px'}
>
<Box as={'p'}>{item.value}</Box>
</Card>
</Box>
</>
)}
{item.obj === 'AI' && (
<>
<Flex w={'100%'} alignItems={'center'}>
<ChatAvatar src={appAvatar} type={'AI'} />
<Flex {...controlContainerStyle} ml={3}>
<MyTooltip label={'复制'}>
<MyIcon
{...controlIconStyle}
name={'copy'}
_hover={{ color: 'myBlue.700' }}
onClick={() => onclickCopy(item.value)}
/>
</MyTooltip>
{onDelMessage && (
<MyTooltip label={'删除'}>
<MyIcon
{...controlIconStyle}
name={'delete'}
_hover={{ color: 'red.600' }}
onClick={() => {
setChatHistory((state) =>
state.filter((chat) => chat._id !== item._id)
);
onDelMessage({
contentId: item._id,
index
});
}}
/>
</MyTooltip>
)}
{hasVoiceApi && (
<MyTooltip label={'语音播报'}>
<MyIcon
{...controlIconStyle}
name={'voice'}
_hover={{ color: '#E74694' }}
onClick={() => voiceBroadcast({ text: item.value })}
/>
</MyTooltip>
)}
</Flex>
</Flex>
<Box position={'relative'} maxW={messageCardMaxW} mt={['6px', 2]}>
<Card bg={'white'} {...MessageCardStyle}>
<Markdown
source={item.value}
isChatting={index === chatHistory.length - 1 && isChatting}
/>
<ResponseDetailModal
chatId={chatId}
contentId={item._id}
responseData={item.responseData}
/>
</Card>
</Box>
</>
)}
</Flex>
))}
</Box>
</Box>
</Box>
{/* input */}
{variableIsFinish ? (
<Box m={['0 auto', '10px auto']} w={'100%'} maxW={['auto', 'min(750px, 100%)']} px={[0, 5]}>
<Box
py={'18px'}
position={'relative'}
boxShadow={`0 0 10px rgba(0,0,0,0.2)`}
borderTop={['1px solid', 0]}
borderTopColor={'myGray.200'}
borderRadius={['none', 'md']}
backgroundColor={'white'}
>
{/* 输入框 */}
<Textarea
ref={TextareaDom}
py={0}
pr={['45px', '55px']}
border={'none'}
_focusVisible={{
border: 'none'
}}
placeholder="提问"
resize={'none'}
rows={1}
height={'22px'}
lineHeight={'22px'}
maxHeight={'150px'}
maxLength={-1}
overflowY={'auto'}
whiteSpace={'pre-wrap'}
wordBreak={'break-all'}
boxShadow={'none !important'}
color={'myGray.900'}
onChange={(e) => {
const textarea = e.target;
textarea.style.height = textareaMinH;
textarea.style.height = `${textarea.scrollHeight}px`;
}}
onKeyDown={(e) => {
// 触发快捷发送
if (e.keyCode === 13 && !e.shiftKey) {
handleSubmit((data) => sendPrompt(data, TextareaDom.current?.value))();
e.preventDefault();
}
// 全选内容
// @ts-ignore
e.key === 'a' && e.ctrlKey && e.target?.select();
}}
/>
{/* 发送和等待按键 */}
<Flex
alignItems={'center'}
justifyContent={'center'}
h={'25px'}
w={'25px'}
position={'absolute'}
right={['12px', '20px']}
bottom={'15px'}
>
{isChatting ? (
<MyIcon
className={styles.stopIcon}
width={['22px', '25px']}
height={['22px', '25px']}
cursor={'pointer'}
name={'stop'}
color={'gray.500'}
onClick={() => controller.current?.abort()}
/>
) : (
<MyIcon
name={'chatSend'}
width={['18px', '20px']}
height={['18px', '20px']}
cursor={'pointer'}
color={'gray.500'}
onClick={() => {
handleSubmit((data) => sendPrompt(data, TextareaDom.current?.value))();
}}
/>
)}
</Flex>
</Box>
</Box>
) : null}
</Flex>
);
};
export default React.memo(forwardRef(ChatBox));
export const useChatBox = () => {
const onExportChat = useCallback(
({ type, history }: { type: ExportChatType; history: ChatItemType[] }) => {
const getHistoryHtml = () => {
const historyDom = document.getElementById('history');
if (!historyDom) return;
const dom = Array.from(historyDom.children).map((child, i) => {
const avatar = `<img src="${
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: 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]();
},
[]
);
return {
onExportChat
};
};