chatgpt-web/src/views/chat/index.vue

<script setup>
import {uploadFormData, uploadImg} from "@/api/api";
import {Local} from "@/utils/storage/storage";
import dayjs from "dayjs";
import {computed, onMounted, onUnmounted, ref, watch} from 'vue'
import {useRoute} from 'vue-router'
import {NAutoComplete, NButton, NInput, useDialog, useMessage, NBackTop,NIcon} from 'naive-ui'
import {AreaChartOutlined, PlusOutlined} from '@ant-design/icons-vue';
import html2canvas from 'html2canvas'
import {Message} from './components'
import {useScroll} from './hooks/useScroll'
import { FlashOutline } from '@vicons/ionicons5'
import {useChat} from './hooks/useChat'
import {useUsingContext} from './hooks/useUsingContext'
import HeaderComponent from './components/Header/index.vue'
import {HoverButton, SvgIcon} from '@/components/common'
import {useBasicLayout} from '@/hooks/useBasicLayout'
import {useChatStore, usePromptStore} from '@/store'
import {fetchChatAPIProcess} from '@/api'
import {t} from '@/locales'
import {UploadOutlined} from '@ant-design/icons-vue';
import {storeToRefs} from 'pinia'
import {sessionDetailForSetup} from '@/store'
import StopSvg from '@/assets/RecordStop12Regular.svg'
const sessionDetailData = sessionDetailForSetup()
let controller = new AbortController()
const {
	sessionDetail: dataSources,
	currentListUuid,
	gptMode,
	isStop,
	isGPT4,
  loading
} = storeToRefs(sessionDetailData)

const dialog = useDialog()
const ms = useMessage()
const chatStore = useChatStore()
const {isMobile} = useBasicLayout()
const {
	addChat,
	updateChat,
	updateChatSome,
	getChatByUuidAndIndex
} = useChat()
const {
	scrollRef,
	scrollToBottom,
	scrollToBottomIfAtBottom
} = useScroll()
const {
	usingContext,
	toggleUsingContext
} = useUsingContext()
const prompt = ref('')
const inputRef = ref(null)

// 添加PromptStore
const promptStore = usePromptStore()

// 使用storeToRefs，保证store修改后，联想部分能够重新渲染
const {promptList: promptTemplate} = storeToRefs(promptStore)

// 未知原因刷新页面，loading 状态不会重置，手动重置
dataSources.value.forEach((item, index) => {
	if (item.loading) {
		updateChatSome(+uuid, index, {loading: false})
	}
})

function handleSubmit() {
  if (loading.value){
    handleStop()
  }else {
      loading.value = true
    dataSources.value.push({
      dateTime: dayjs().format('YYYY/MM/DD HH:mm:ss'),
      text: prompt.value?.trim(),
      inversion: true,
      error: false,
      fileList: fileList.value.map(x => x.url),
      loading: false
    })
    sendDataStream()
    scrollToBottom('smooth')
  }



}
//一键滚动到底部，一键滚动到顶部逻辑未完善
/* const isTopBottom=()=>{
	if (  scrollRef.value.scrollTop ===0){

	}
} */

const API_URL = `${import.meta.env.VITE_APP_API_BASE_URL}/chat/completion`;
const createParams = () => {
	const messages = dataSources.value.map((x) => {
		return {
			content: (() => {
				if (gptMode.value === 'gpt-4-vision-preview') {
					return [{
						type: "text",
						text: x.text
					}, ...x.fileList.map((y) => {
						return {
							type: "image_url",
							image_url: y
						}
					})]
				} else {
					return x.text
				}
			})(),
			role: x.inversion ? 'user' : 'assistant'
		}
	});
	return {
		type: isFile.value ? 'custom' : '',
		listUuid: currentListUuid.value,
		messages,
		frequency_penalty: 0,
		max_tokens: 1000,
		model: gptMode.value,
		presence_penalty: 0,
		stream: true,
		temperature: 1,
		top_p: 1
	};
};
const handleResponseStream = async (reader) => {
	const {
		done,
		value
	} = await reader.read();
	if (!done) {
		let decoded = new TextDecoder().decode(value);
		let decodedArray = decoded.split("data: ");
		for (const decoded of decodedArray) {
			if (decoded !== "") {
				if (decoded.trim() === "[DONE]") {
					dataSources.value[dataSources.value.length - 1].loading = false
            loading.value = false
				} else {
					if (isStop.value) {
						dataSources.value[dataSources.value.length - 1].loading = false
						loading.value = false
						return;
					}
					loading.value = true
					dataSources.value[dataSources.value.length - 1].loading = true
					const response = JSON.parse(decoded).choices[0].delta.content
						? JSON.parse(decoded).choices[0].delta.content
						: "";
					dataSources.value[dataSources.value.length - 1].text += response;
				}
			}
		}
		await handleResponseStream(reader);
	}
};
const sendDataStream = async () => {
	const params = createParams();
	fileList.value = []
	prompt.value = ''
	isStop.value = false
	dataSources.value.push({
		dateTime: dayjs().format('YYYY/MM/DD HH:mm:ss'),
		text: '思考中..',
		inversion: false,
		error: false,
		loading: true
	});
	visible.value = false
	try {
		const response = await fetch(API_URL, {
			method: "POST",
			timeout: 10000,
			body: JSON.stringify(params),
			headers: {
				"Content-Type": "application/json",
				Accept: "application/json",
				Authorization: Local.get('token'),
			},
		});

		const contentType = response.headers.get('Content-Type');
		if (!contentType || !contentType.includes('application/json')) {
			const reader = response.body.getReader();
			dataSources.value[dataSources.value.length - 1].text = ''
			await handleResponseStream(reader);
		}
	} catch (error) {
		console.error('发生错误:', error);
	}
};

function handleExport() {
	if (loading.value) {
		return
	}

	const d = dialog.warning({
		title: t('chat.exportImage'),
		content: t('chat.exportImageConfirm'),
		positiveText: t('common.yes'),
		negativeText: t('common.no'),
		onPositiveClick: async () => {
			try {
				d.loading = true
				const ele = document.getElementById('image-wrapper')
				const canvas = await html2canvas(ele, {
					useCORS: true,
				})
				const imgUrl = canvas.toDataURL('image/png')
				const tempLink = document.createElement('a')
				tempLink.style.display = 'none'
				tempLink.href = imgUrl
				tempLink.setAttribute('download', 'chat-shot.png')
				if (typeof tempLink.download === 'undefined') {
					tempLink.setAttribute('target', '_blank')
				}

				document.body.appendChild(tempLink)
				tempLink.click()
				document.body.removeChild(tempLink)
				window.URL.revokeObjectURL(imgUrl)
				d.loading = false
				ms.success(t('chat.exportSuccess'))
				Promise.resolve()
			} catch (error) {
				ms.error(t('chat.exportFailed'))
			} finally {
				d.loading = false
			}
		},
	})
}

function handleDelete(index) {
	if (loading.value) {
		return
	}

	dialog.warning({
		title: t('chat.deleteMessage'),
		content: t('chat.deleteMessageConfirm'),
		positiveText: t('common.yes'),
		negativeText: t('common.no'),
		onPositiveClick: () => {
			chatStore.deleteChatByUuid(+uuid, index)
		},
	})
}

function handleClear() {
	if (loading.value) {
		return
	}

	dialog.warning({
		title: t('chat.clearChat'),
		content: t('chat.clearChatConfirm'),
		positiveText: t('common.yes'),
		negativeText: t('common.no'),
		onPositiveClick: () => {
			chatStore.clearChatByUuid(+uuid)
		},
	})
}

function handleEnter(event) {
	if (!isMobile.value) {
		if (event.key === 'Enter' && !event.shiftKey) {
			event.preventDefault()
			handleSubmit()
		}
	} else {
		if (event.key === 'Enter' && event.ctrlKey) {
			event.preventDefault()
			handleSubmit()
		}
	}
}

function handleStop() {
	if (loading.value) {
		loading.value = false
		isStop.value = true
	}
}

// 可优化部分
// 搜索选项计算，这里使用value作为索引项，所以当出现重复value时渲染异常(多项同时出现选中效果)
// 理想状态下其实应该是key作为索引项,但官方的renderOption会出现问题，所以就需要value反renderLabel实现
const searchOptions = computed(() => {
	if (prompt.value.startsWith('/')) {
		return promptTemplate.value.filter((item) => item.key.toLowerCase().includes(prompt.value.substring(1).toLowerCase())).map((obj) => {
			return {
				label: obj.value,
				value: obj.value,
			}
		})
	} else {
		return []
	}
})

// value反渲染key
const renderOption = (option) => {
	for (const i of promptTemplate.value) {
		if (i.value === option.label) {
			return [i.key]
		}
	}
	return []
}

const placeholder = computed(() => {
	if (isMobile.value) {
		return t('chat.placeholderMobile')
	}
	return t('chat.placeholder')
})

const buttonDisabled = computed(() => {
	return   prompt.value.trim() === '' &&!loading.value
})

const footerClass = computed(() => {
	let classes = ['p-4']
	if (isMobile.value) {
		classes = ['sticky', 'left-0', 'bottom-0', 'right-0', 'p-2', 'pr-3', 'overflow-hidden']
	}
	return classes
})
const isShowBottom=ref(false)
onMounted(() => {
  scrollRef.value.addEventListener('scroll', function() {
    if (scrollRef.value.scrollTop + scrollRef.value.clientHeight +100>= scrollRef.value.scrollHeight) {
      isShowBottom.value=false
    }else {
      isShowBottom.value=true
    }
  });
	if (inputRef.value && !isMobile.value) {
		inputRef.value?.focus()
	}
})
const currentColor = ref('#ff0000'); // 初始颜色红色
const colors = ['#ff0000', '#ffffff']; // 颜色数组（红色和白色）
let intervalId = null;

// 计时器函数
const changeColor = () => {
  currentColor.value = currentColor.value === colors[0] ? colors[1] : colors[0];
};

watch(loading,()=>{
if (loading.value){
  intervalId = setInterval(changeColor, 1000);
}else {
  clearInterval(intervalId);
}
})
const fileList = ref([]);
onUnmounted(() => {
	if (loading.value) {
		controller.abort()
	}
})

function getBase64(file) {
	return new Promise((resolve, reject) => {
		const reader = new FileReader();
		reader.readAsDataURL(file);
		reader.onload = () => resolve(reader.result);
		reader.onerror = error => reject(error);
	});
}
const previewVisible = ref(false);
const previewImage = ref('');
const previewTitle = ref('');
const handleCancel = () => {
	previewVisible.value = false;
	previewTitle.value = '';
};
const handlePreview = async (file) => {
	if (!file.url && !file.preview) {
		file.preview = (await getBase64(file.originFileObj))
	}
	previewImage.value = file.url || file.preview;
	previewVisible.value = true;
	previewTitle.value = file.name || file.url.substring(file.url.lastIndexOf('/') + 1);
};
const value = ref('gpt-3.5-turbo');
const visible = ref(false)
const removeImg = (data) => {
	fileList.value.splice(fileList.value.findIndex(x => x.url === data.url), 1)
}
watch(gptMode, () => {
	currentListUuid.value = ''
	dataSources.value = []
})
const visible1 = ref(false)
const fileList1 = ref([])
const isFile = ref(false)
const upItemImage1 = async (file) => {
	const data = {
		file: file.file,
	}
	const res = await uploadFormData(data)
	if (res.code === 0) {
		file.onSuccess()
		dataSources.value = [...dataSources.value, ...res.data.paragraph.flatMap(n => [n, '']).map((x) => {
			return {
				dateTime: dayjs().format('YYYY/MM/DD HH:mm:ss'),
				text: x,
				inversion: Boolean(x),
				error: false,
			}
		})]
		isFile.value = true
		fileList1.value = []
		visible1.value = false
		sendDataStream()
	}
}
watch(dataSources,()=>{
  loading.value=false
	scrollToBottom('auto')
})
const customRequest = async (file) => {
	const res = await uploadImg({
		file: file.file,
		source: 'approval'
	})
	if (res.code === 0) {
		file.onSuccess()
		fileList.value.push({
			url: res.data.ori_url
		})
	}
}
</script>
<template>
	<div class="flex flex-col w-full h-full">
		<HeaderComponent
			v-if="isMobile"
			:using-context="usingContext"
			@export="handleExport"
			@handle-clear="handleClear"
		/>
		<main class="flex-1 overflow-hidden">
      <transition name="fade">
			<div class="shortcut-arrow" v-if="isShowBottom">
				<div class="top">
					<n-button @click="scrollToBottom('smooth')" type="primary" dashed circle>
						<template #icon>
							<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 512 512">
								<path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="48"
											d="M244 400L100 256l144-144"
								></path>
								<path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="48"
											d="M120 256h292"
								></path>
							</svg>
						</template>
					</n-button>
				</div>
			</div>
      </transition>

			<div id="scrollRef" ref="scrollRef" class="h-full overflow-hidden overflow-y-auto">
				<div
					id="image-wrapper"
					class="w-full max-w-screen-xl m-auto dark:bg-[#101014]"

					:class="[isMobile ? 'p-2' : 'p-4']"
				>
					<template v-if="!dataSources.length">
						<div class="flex items-center justify-center mt-4 text-center text-neutral-300">
							<SvgIcon icon="ri:bubble-chart-fill" class="mr-2 text-3xl"/>
							<span>当前没有会话哦</span>
						</div>
					</template>
					<template v-else>
						<div>
							<Message
								v-for="(item, index) of dataSources"
								:key="index"
								:date-time="item.dateTime"
								:text="item.text"
								:fileList="item.fileList"
								:inversion="item.inversion"
								:error="item.error"
								:loading="item.loading"
								@delete="handleDelete(index)"
							/>
							<div class="sticky bottom-0 left-0 flex justify-center">
<!--								<NButton v-if="loading" type="warning" @click="handleStop(item)">
									<template #icon>
										<SvgIcon icon="ri:stop-circle-line"/>
									</template>
									停止响应
								</NButton>-->
							</div>
						</div>
					</template>
				</div>
			</div>
		</main>
		<footer :class="footerClass">
			<div class="w-full max-w-screen-xl m-auto">
				<div class="flex items-center justify-center space-x-2" style="flex-wrap: initial">
					<a-popover :open="visible1" trigger="click">
						<template #content>
							<div class="clearfix">
								<a-upload
									:max-count="1"
									v-model:file-list="fileList1"
									name="file"
									:customRequest="upItemImage1"
								>
									<a-button>
										<upload-outlined></upload-outlined>
										上传文件
									</a-button>
								</a-upload>
							</div>
						</template>
						<HoverButton @click="visible1=!visible1">
            <span class="text-xl text-[#4f555e] dark:text-white"
									style="display: flex;justify-content: center;align-items: center"
						>
            <SvgIcon icon="ri:upload-2-line"/>
            </span>
						</HoverButton>
					</a-popover>
					<a-popover v-if="gptMode==='gpt-4-vision-preview'" :open="visible" trigger="click">
						<template #content>
							<div class="clearfix">
								<a-upload
									:file-list="fileList"
									:customRequest="customRequest"
									list-type="picture-card"
									@preview="handlePreview"
									@remove="removeImg"
								>
									<div>
										<plus-outlined/>
										<div style="margin-top: 8px">上传</div>
									</div>
								</a-upload>
								<a-modal :open="previewVisible" :title="previewTitle" :footer="null" @cancel="handleCancel">
									<img alt="example" style="width: 100%" :src="previewImage"/>
								</a-modal>
							</div>
						</template>
						<HoverButton @click="visible=!visible">
            <span class="text-xl text-[#4f555e] dark:text-white"
									style="display: flex;justify-content: center;align-items: center"
						>
             <AreaChartOutlined/>
            </span>
						</HoverButton>
					</a-popover>
					<!--          <HoverButton v-if="!isMobile" @click="handleClear">
											<span class="text-xl text-[#4f555e] dark:text-white">
												<SvgIcon icon="ri:delete-bin-line" />
											</span>
										</HoverButton>-->
<!--					<HoverButton v-if="!isMobile" @click="handleExport">
            <span class="text-xl text-[#4f555e] dark:text-white">
              <SvgIcon icon="ri:download-2-line"/>
            </span>
					</HoverButton>-->
					<!--          <HoverButton @click="toggleUsingContext">
											<span class="text-xl" :class="{ 'text-[#4b9e5f]': usingContext, 'text-[#a8071a]': !usingContext }">
												<SvgIcon icon="ri:chat-history-line" />
											</span>
										</HoverButton>-->
<!--					<NAutoComplete v-model:value="prompt" :options="searchOptions" :render-label="renderOption">
						<template #default="{ handleInput, handleBlur, handleFocus }">


						</template>

					</NAutoComplete>-->
<!--		          <NInput
            ref="inputRef"
            v-model:value="prompt"
            type="textarea"
            size="large"
            :placeholder="placeholder"
            :autosize="{ minRows: 1, maxRows: isMobile ? 4 : 8 }"
            @input="handleInput"
            @focus="handleFocus"
            @blur="handleBlur"
            @keypress="handleEnter"
          />			-->
          <NInput
              style="width:75%"
            ref="inputRef"
            v-model:value="prompt"
            type="textarea"
            size="large"
            :placeholder="placeholder"
            :autosize="{ minRows: 1, maxRows: isMobile ? 4 : 8 }"
            @keypress="handleEnter"
					>
					</NInput>
          <NButton color="#8a2be2" type="primary" size="large" :disabled="buttonDisabled"  @click="handleSubmit">
            <template #icon>
              <span class="dark:text-black" v-if="!loading">
                <SvgIcon  icon="ri:send-plane-fill"/>
              </span>

              <span class="dark:text-black" v-if="loading">
                     <svg style="width:100%;height:100%;" xmlns="http://www.w3.org/2000/svg" :style="{color:currentColor}" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 12 12"><g fill="none"><path d="M5 4a1 1 0 0 0-1 1v2a1 1 0 0 0 1 1h2a1 1 0 0 0 1-1V5a1 1 0 0 0-1-1H5zm6 2A5 5 0 1 1 1 6a5 5 0 0 1 10 0zm-1 0a4 4 0 1 0-8 0a4 4 0 0 0 8 0z" fill="currentColor"></path></g></svg>
              </span>
            </template>
          </NButton>
				</div>
			</div>
		</footer>
	</div>
</template>
<style scoped>
.fade-enter-active, .fade-leave-active {
  transition: opacity 0.4s ease-in-out;
}
.fade-enter-from, .fade-leave-to {
  opacity: 0;
}
.shortcut-arrow {
	width: min-content;
	height: min-content;
	position: absolute;
	z-index: 10;
	left: 50%;
	bottom: 100px;
}
.shortcut-arrow .top {
  transform: rotate(270deg) translateX(-50%);
  width: min-content;
  height: min-content;
}
</style>