geekai/web/src/views/mobile/ChatSession.vue
2024-09-12 17:25:19 +08:00

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<template>
<div class="app-background">
<div class="mobile-chat" v-loading="loading" element-loading-text="正在连接会话...">
<van-nav-bar ref="navBarRef">
<template #title>
<van-dropdown-menu>
<van-dropdown-item :title="title">
<van-cell center title="角色"> {{ role.name }}</van-cell>
<van-cell center title="模型">{{ modelValue }}</van-cell>
</van-dropdown-item>
</van-dropdown-menu>
</template>
<template #left>
<span class="setting">
<van-icon name="setting-o" @click="showPicker = true"/>
</span>
</template>
<template #right>
<van-icon name="share-o" @click="showShare = true"/>
</template>
</van-nav-bar>
<van-share-sheet
v-model:show="showShare"
title="立即分享给好友"
:options="shareOptions"
@select="shareChat"
/>
<div class="chat-list-wrapper">
<div id="message-list-box" :style="{height: winHeight + 'px'}" class="message-list-box">
<van-list
v-model:error="error"
:finished="finished"
error-text="请求失败点击重新加载"
@load="onLoad"
>
<van-cell v-for="item in chatData" :key="item" :border="false" class="message-line">
<chat-prompt
v-if="item.type==='prompt'"
:content="item.content"
:icon="item.icon"/>
<chat-reply v-else-if="item.type==='reply'"
:content="item.content"
:icon="item.icon"
:org-content="item.orgContent"/>
</van-cell>
</van-list>
</div>
</div>
<div class="chat-box-wrapper">
<van-sticky ref="bottomBarRef" :offset-bottom="0" position="bottom">
<van-cell-group inset>
<van-field
v-model="prompt"
center
clearable
placeholder="输入你的问题"
>
<!-- <template #left-icon>-->
<!-- <van-button round type="success" class="button-voice" @click="inputVoice">-->
<!-- <el-icon>-->
<!-- <Microphone/>-->
<!-- </el-icon>-->
<!-- </van-button>-->
<!-- </template>-->
<template #button>
<van-button size="small" type="primary" @click="sendMessage">发送</van-button>
</template>
<template #extra>
<div class="icon-box">
<van-icon v-if="showStopGenerate" name="stop-circle-o" @click="stopGenerate"/>
<van-icon v-if="showReGenerate" name="play-circle-o" @click="reGenerate"/>
</div>
</template>
</van-field>
</van-cell-group>
</van-sticky>
</div>
</div>
<button id="copy-link-btn" style="display: none;" :data-clipboard-text="url">复制链接地址</button>
<!-- <van-overlay :show="showMic" z-index="100">-->
<!-- <div class="mic-wrapper">-->
<!-- <div class="image">-->
<!-- <van-image-->
<!-- width="100"-->
<!-- height="100"-->
<!-- src="/images/mic.gif"-->
<!-- />-->
<!-- </div>-->
<!-- <van-button type="success" @click="stopVoice">说完了</van-button>-->
<!-- </div>-->
<!-- </van-overlay>-->
</div>
<van-popup v-model:show="showPicker" position="bottom" class="popup">
<van-picker
:columns="columns"
v-model="selectedValues"
title="选择模型和角色"
@cancel="showPicker = false"
@confirm="newChat"
>
<template #option="item">
<div class="picker-option">
<van-image
v-if="item.icon"
:src="item.icon"
fit="cover"
round
/>
<span>{{ item.text }}</span>
</div>
</template>
</van-picker>
</van-popup>
</template>
<script setup>
import {nextTick, onMounted, onUnmounted, ref} from "vue";
import {showImagePreview, showNotify, showToast} from "vant";
import {onBeforeRouteLeave, useRouter} from "vue-router";
import {processContent, randString, renderInputText, UUID} from "@/utils/libs";
import {httpGet} from "@/utils/http";
import hl from "highlight.js";
import 'highlight.js/styles/a11y-dark.css'
import ChatPrompt from "@/components/mobile/ChatPrompt.vue";
import ChatReply from "@/components/mobile/ChatReply.vue";
import {getSessionId, getUserToken} from "@/store/session";
import {checkSession} from "@/store/cache";
import Clipboard from "clipboard";
import {showLoginDialog} from "@/utils/dialog";
const winHeight = ref(0)
const navBarRef = ref(null)
const bottomBarRef = ref(null)
const router = useRouter()
const roles = ref([])
const roleId = ref(parseInt(router.currentRoute.value.query["role_id"]))
const role = ref({})
const models = ref([])
const modelId = ref(parseInt(router.currentRoute.value.query["model_id"]))
const modelValue = ref("")
const title = ref(router.currentRoute.value.query["title"])
const chatId = ref(router.currentRoute.value.query["chat_id"])
const loginUser = ref(null)
// const showMic = ref(false)
const showPicker = ref(false)
const columns = ref([roles.value, models.value])
const selectedValues = ref([roleId.value, modelId.value])
checkSession().then(user => {
loginUser.value = user
}).catch(() => {
router.push('/login')
})
if (chatId.value) {
httpGet(`/api/chat/detail?chat_id=${chatId.value}`).then(res => {
title.value = res.data.title
modelId.value = res.data.model_id
roleId.value = res.data.role_id
}).catch(() => {
})
} else {
title.value = "新建对话"
}
// 加载模型
httpGet('/api/model/list').then(res => {
models.value = res.data
if (!modelId.value) {
modelId.value = models.value[0].id
}
for (let i = 0; i < models.value.length; i++) {
models.value[i].text = models.value[i].name
models.value[i].mValue = models.value[i].value
models.value[i].value = models.value[i].id
}
modelValue.value = getModelName(modelId.value)
// 加载角色列表
httpGet(`/api/app/list/user`).then((res) => {
roles.value = res.data;
if (!roleId.value) {
roleId.value = roles.value[0]['id']
}
// build data for role picker
for (let i = 0; i < roles.value.length; i++) {
roles.value[i].text = roles.value[i].name
roles.value[i].value = roles.value[i].id
roles.value[i].helloMsg = roles.value[i].hello_msg
}
role.value = getRoleById(roleId.value)
columns.value = [roles.value, models.value]
// 新建对话
if (!chatId.value) {
connect(chatId.value, roleId.value, modelId.value)
}
}).catch((e) => {
showNotify({type: "danger", message: '获取聊天角色失败: ' + e.messages})
})
}).catch(e => {
showNotify({type: "danger", message: "加载模型失败: " + e.message})
})
const url = ref(location.protocol + '//' + location.host + '/mobile/chat/export?chat_id=' + chatId.value)
onMounted(() => {
winHeight.value = window.innerHeight - navBarRef.value.$el.offsetHeight - bottomBarRef.value.$el.offsetHeight - 70
const clipboard = new Clipboard(".content-mobile,.copy-code-mobile,#copy-link-btn");
clipboard.on('success', (e) => {
e.clearSelection()
showNotify({type: 'success', message: '复制成功', duration: 1000})
})
clipboard.on('error', () => {
showNotify({type: 'danger', message: '复制失败', duration: 2000})
})
})
onUnmounted(() => {
if (socket.value !== null) {
socket.value.close()
socket.value = null
}
})
const newChat = (item) => {
showPicker.value = false
const options = item.selectedOptions
roleId.value = options[0].value
modelId.value = options[1].value
modelValue.value = getModelName(modelId.value)
chatId.value = ""
chatData.value = []
role.value = getRoleById(roleId.value)
title.value = "新建对话"
connect(chatId.value, roleId.value, modelId.value)
}
const chatData = ref([])
const loading = ref(false)
const finished = ref(false)
const error = ref(false)
const mathjaxPlugin = require('markdown-it-mathjax3')
const md = require('markdown-it')({
breaks: true,
html: true,
linkify: true,
typographer: true,
highlight: function (str, lang) {
const codeIndex = parseInt(Date.now()) + Math.floor(Math.random() * 10000000)
// 显示复制代码按钮
const copyBtn = `<span class="copy-code-mobile" data-clipboard-action="copy" data-clipboard-target="#copy-target-${codeIndex}">复制</span>
<textarea style="position: absolute;top: -9999px;left: -9999px;z-index: -9999;" id="copy-target-${codeIndex}">${str.replace(/<\/textarea>/g, '&lt;/textarea>')}</textarea>`
if (lang && hl.getLanguage(lang)) {
const langHtml = `<span class="lang-name">${lang}</span>`
// 处理代码高亮
const preCode = hl.highlight(lang, str, true).value
// 将代码包裹在 pre 中
return `<pre class="code-container"><code class="language-${lang} hljs">${preCode}</code>${copyBtn} ${langHtml}</pre>`
}
// 处理代码高亮
const preCode = md.utils.escapeHtml(str)
// 将代码包裹在 pre 中
return `<pre class="code-container"><code class="language-${lang} hljs">${preCode}</code>${copyBtn}</pre>`
}
});
md.use(mathjaxPlugin)
const onLoad = () => {
if (chatId.value) {
checkSession().then(() => {
httpGet('/api/chat/history?chat_id=' + chatId.value).then(res => {
// 加载状态结束
finished.value = true;
const data = res.data
if (data && data.length > 0) {
for (let i = 0; i < data.length; i++) {
if (data[i].type === "prompt") {
chatData.value.push(data[i]);
continue;
}
data[i].orgContent = data[i].content;
data[i].content = md.render(processContent(data[i].content))
chatData.value.push(data[i]);
}
nextTick(() => {
hl.configure({ignoreUnescapedHTML: true})
const blocks = document.querySelector("#message-list-box").querySelectorAll('pre code');
blocks.forEach((block) => {
hl.highlightElement(block)
})
scrollListBox()
})
}
connect(chatId.value, roleId.value, modelId.value);
}).catch(() => {
error.value = true
})
}).catch(() => {
})
}
};
// 离开页面时主动关闭 websocket 连接,节省网络资源
onBeforeRouteLeave(() => {
if (socket.value !== null) {
activelyClose.value = true;
clearTimeout(heartbeatHandle.value)
socket.value.close();
}
})
// 创建 socket 连接
const prompt = ref('');
const showStopGenerate = ref(false); // 停止生成
const showReGenerate = ref(false); // 重新生成
const previousText = ref(''); // 上一次提问
const lineBuffer = ref(''); // 输出缓冲行
const socket = ref(null);
const activelyClose = ref(false); // 主动关闭
const canSend = ref(true);
const heartbeatHandle = ref(null)
const connect = function (chat_id, role_id, model_id) {
let isNewChat = false;
if (!chat_id) {
isNewChat = true;
chat_id = UUID();
}
// 初始化 WebSocket 对象
const _sessionId = getSessionId();
let host = process.env.VUE_APP_WS_HOST
if (host === '') {
if (location.protocol === 'https:') {
host = 'wss://' + location.host;
} else {
host = 'ws://' + location.host;
}
}
// 心跳函数
const sendHeartbeat = () => {
if (socket.value !== null) {
new Promise((resolve) => {
socket.value.send(JSON.stringify({type: "heartbeat", content: "ping"}))
resolve("success")
}).then(() => {
heartbeatHandle.value = setTimeout(() => sendHeartbeat(), 5000)
});
}
}
const _socket = new WebSocket(host + `/api/chat/new?session_id=${_sessionId}&role_id=${role_id}&chat_id=${chat_id}&model_id=${model_id}&token=${getUserToken()}`);
_socket.addEventListener('open', () => {
loading.value = false
previousText.value = '';
canSend.value = true;
activelyClose.value = false;
if (isNewChat) { // 加载打招呼信息
chatData.value.push({
type: "reply",
id: randString(32),
icon: role.value.icon,
content: role.value.hello_msg,
orgContent: role.value.hello_msg,
})
}
// 发送心跳消息
sendHeartbeat()
});
_socket.addEventListener('message', event => {
if (event.data instanceof Blob) {
const reader = new FileReader();
reader.readAsText(event.data, "UTF-8");
reader.onload = () => {
const data = JSON.parse(String(reader.result));
if (data.type === 'start') {
chatData.value.push({
type: "reply",
id: randString(32),
icon: role.value.icon,
content: ""
});
if (isNewChat) {
title.value = previousText.value
}
} else if (data.type === 'end') { // 消息接收完毕
enableInput()
lineBuffer.value = ''; // 清空缓冲
} else {
lineBuffer.value += data.content;
const reply = chatData.value[chatData.value.length - 1]
reply['orgContent'] = lineBuffer.value;
reply['content'] = md.render(processContent(lineBuffer.value));
nextTick(() => {
hl.configure({ignoreUnescapedHTML: true})
const lines = document.querySelectorAll('.message-line');
const blocks = lines[lines.length - 1].querySelectorAll('pre code');
blocks.forEach((block) => {
hl.highlightElement(block)
})
scrollListBox()
const items = document.querySelectorAll('.message-line')
const imgs = items[items.length - 1].querySelectorAll('img')
for (let i = 0; i < imgs.length; i++) {
if (!imgs[i].src) {
continue
}
imgs[i].addEventListener('click', (e) => {
e.stopPropagation()
showImagePreview([imgs[i].src]);
})
}
})
}
};
}
});
_socket.addEventListener('close', () => {
if (activelyClose.value || socket.value === null) { // 忽略主动关闭
return;
}
// 停止发送消息
canSend.value = true;
// 重连
checkSession().then(() => {
connect(chat_id, role_id, model_id)
}).catch(() => {
showLoginDialog(router)
});
});
socket.value = _socket;
}
const disableInput = (force) => {
canSend.value = false;
showReGenerate.value = false;
showStopGenerate.value = !force;
}
const enableInput = () => {
canSend.value = true;
showReGenerate.value = previousText.value !== "";
showStopGenerate.value = false;
}
// 将聊天框的滚动条滑动到最底部
const scrollListBox = () => {
document.getElementById('message-list-box').scrollTo(0, document.getElementById('message-list-box').scrollHeight + 46)
}
const sendMessage = () => {
if (canSend.value === false) {
showToast("AI 正在作答中,请稍后...");
return
}
if (prompt.value.trim().length === 0) {
showToast("请输入需要 AI 回答的问题")
return false;
}
// 追加消息
chatData.value.push({
type: "prompt",
id: randString(32),
icon: loginUser.value.avatar,
content: renderInputText(prompt.value),
created_at: new Date().getTime(),
});
nextTick(() => {
scrollListBox()
})
disableInput(false)
socket.value.send(JSON.stringify({type: "chat", content: prompt.value}));
previousText.value = prompt.value;
prompt.value = '';
return true;
}
const stopGenerate = () => {
showStopGenerate.value = false;
httpGet("/api/chat/stop?session_id=" + getSessionId()).then(() => {
enableInput()
})
}
const reGenerate = () => {
disableInput(false)
const text = '重新生成上述问题的答案:' + previousText.value;
// 追加消息
chatData.value.push({
type: "prompt",
id: randString(32),
icon: loginUser.value.avatar,
content: renderInputText(text)
});
socket.value.send(JSON.stringify({type: "chat", content: previousText.value}));
}
const showShare = ref(false)
const shareOptions = [
{name: '微信', icon: 'wechat'},
{name: '复制链接', icon: 'link'},
]
const shareChat = (option) => {
showShare.value = false
if (option.icon === "wechat") {
showToast({message: "当前会话已经导出,请通过浏览器或者微信的自带分享功能分享给好友", duration: 5000})
router.push({
path: "/mobile/chat/export",
query: {title: title.value, chat_id: chatId.value, role: role.value.name, model: modelValue.value}
})
} else if (option.icon === "link") {
document.getElementById('copy-link-btn').click();
}
}
const getRoleById = function (rid) {
for (let i = 0; i < roles.value.length; i++) {
if (roles.value[i]['id'] === rid) {
return roles.value[i];
}
}
return null;
}
const getModelName = (model_id) => {
for (let i = 0; i < models.value.length; i++) {
if (models.value[i].id === model_id) {
return models.value[i].text
}
}
return ""
}
// // eslint-disable-next-line no-undef
// const recognition = new webkitSpeechRecognition() || SpeechRecognition();
// //recognition.lang = 'zh-CN' // 设置语音识别语言
// recognition.onresult = function (event) {
// prompt.value = event.results[0][0].transcript
// };
//
// recognition.onerror = function (event) {
// showMic.value = false
// recognition.stop()
// showNotify({type: 'danger', message: '语音识别错误:' + event.error})
// };
//
// recognition.onend = function () {
// console.log('语音识别结束');
// };
// const inputVoice = () => {
// showMic.value = true
// recognition.start();
// }
//
// const stopVoice = () => {
// showMic.value = false
// recognition.stop()
// }
</script>
<style lang="stylus">
@import "@/assets/css/mobile/chat-session.styl"
</style>