airz-uniapp/packages/finance/assistant/assistant.uvue

<template>
	<view class="assistant-page page" :style="pageStyle()">
		<AppHeader title="AI融资助手" />
		<scroll-view scroll-y class="chat-scroll" :scroll-into-view="lastMessageId" :style="contentStyle(210, false)">
			<view class="chat-content">
				<view class="assistant-intro"><image src="/packages/finance/static/robot.png" mode="aspectFit" class="assistant-intro-image"></image><view class="assistant-bubble"><text class="bubble-text">您好！我是AI融资助手，可以帮您了解融资条件、准备材料和比较方案。</text></view></view>
				<view class="quick-questions">
					<view class="question" v-for="item in questions" :key="item" @click="ask(item)"><text class="question-text">{{ item }}</text><AppIcon name="chevron-right" :size="28" muted /></view>
				</view>
				<view v-for="(item,index) in messages" :key="index" :id="'message-' + index" :class="item.role == 'user' ? 'message-row user-row' : 'message-row'">
					<image v-if="item.role == 'assistant'" class="message-avatar" src="/packages/finance/static/robot.png" mode="aspectFit"></image>
					<view :class="item.role == 'user' ? 'message-bubble user-bubble' : 'message-bubble'"><text :class="item.role == 'user' ? 'bubble-text user-text' : 'bubble-text'">{{ item.text }}</text></view>
				</view>
				<view v-if="sending" class="message-row"><image class="message-avatar" src="/packages/finance/static/robot.png" mode="aspectFit"></image><view class="message-bubble"><text class="sending-text">正在整理建议…</text></view></view>
				<view v-if="errorMessage.length > 0" class="assistant-error"><text class="error-text">{{ errorMessage }}</text><text @click="retry" class="retry-text">重试</text></view>
				<view id="chat-end" class="chat-end"></view>
			</view>
		</scroll-view>
		<view class="chat-input" :style="bottomStyle(17)"><input v-model="draft" confirm-type="send" @confirm="send" placeholder="请输入您的问题..." class="chat-input-input" /><button @click="send" :disabled="sending || draft.trim().length == 0" :class="sending || draft.trim().length == 0 ? 'chat-input-button send-disabled' : 'chat-input-button'"><AppIcon name="send" :size="40" /></button></view>
	</view>
</template>

<script setup lang="uts">
	import { usePageLayout } from '@/services/layout.uts'
	const { bottomStyle, contentStyle, pageStyle } = usePageLayout()
	import AppHeader from '@/components/AppHeader.uvue'
	import AppIcon from '@/components/AppIcon.uvue'
	import { sendAssistantMessage } from '@/packages/finance/services/api.uts'
	const questions = ['我的融资额度受哪些因素影响？', '如何提高贷款通过率？', '企业融资需要哪些材料？', '有哪些适合我的方案？']
	type ChatMessage = { role: string, text: string }
	const messages = ref<ChatMessage[]>([])
	const draft = ref('')
	const lastMessageId = ref('')
	const lastQuestion = ref('')
	const sending = ref(false)
	const errorMessage = ref('')
	const scrollToEnd = async () => {
		lastMessageId.value = ''
		await nextTick()
		lastMessageId.value = 'chat-end'
	}
	const requestAnswer = async (text: string) => {
		sending.value = true
		errorMessage.value = ''
		scrollToEnd()
		try { const answer = await sendAssistantMessage(text); const response: ChatMessage = { role: 'assistant', text: answer }; messages.value.push(response) } catch (error) { errorMessage.value = '暂未收到回复，请重试' }
		sending.value = false
		scrollToEnd()
	}
	const send = () => {
		const text = draft.value.trim()
		if (text.length == 0 || sending.value) return
		lastQuestion.value = text
		const message: ChatMessage = { role: 'user', text: text }
		messages.value.push(message)
		draft.value = ''
		requestAnswer(text)
	}
	const ask = (text: string) => { if (sending.value) return; draft.value = text; send() }
	const retry = () => { if (!sending.value && lastQuestion.value.length > 0) requestAnswer(lastQuestion.value) }
</script>

<style>
	.assistant-page { background-color: #f4f7fb; }
	.chat-scroll {  }
	.chat-content { padding: 28rpx 26rpx 50rpx; }
	.assistant-intro { flex-direction: row; align-items: flex-start; }
	.assistant-intro-image, .message-avatar { width: 78rpx; height: 78rpx; border-radius: 24rpx; background-color: #e7f2ff; margin-right: 16rpx; }
	.assistant-bubble, .message-bubble { max-width: 530rpx; padding: 24rpx; border-radius: 8rpx 22rpx 22rpx 22rpx; background-color: #fff; color: #344259; font-size: 25rpx; line-height: 42rpx; border: 1rpx solid #e4ebf5; }
	.quick-questions { margin: 25rpx 0 36rpx 94rpx; }
	.question { min-height: 72rpx; margin-top: 13rpx; padding: 14rpx 18rpx; border-radius: 16rpx; border: 2rpx solid #bcd9ff; background-color: #eef6ff; color: #0868f7; font-size: 23rpx; flex-direction: row; align-items: center; justify-content: space-between; }
	.question-arrow { font-size: 34rpx; }
	.message-row { margin-top: 22rpx; flex-direction: row; align-items: flex-start; }
	.user-row { justify-content: flex-end; }
	.user-bubble { color: #fff; background-color: #0868f7; border-color: #0868f7; border-radius: 22rpx 8rpx 22rpx 22rpx; }
	.chat-input { position: fixed; left: 0; right: 0; bottom: 0; min-height: 114rpx; padding: 17rpx 24rpx; background-color: #fff; border-top: 1rpx solid #e3eaf4; flex-direction: row; align-items: center; }
	.chat-input-input { flex: 1; height: 78rpx; border-radius: 39rpx; background-color: #f2f5f9; padding: 0 28rpx; font-size: 25rpx; }
	.chat-input-button { width: 76rpx; height: 76rpx; line-height: 76rpx; border-radius: 50%; margin-left: 15rpx; padding: 0; background-color: #0868f7; align-items: center; justify-content: center; flex-shrink: 0; }
	.send-disabled { opacity: .55; }
/* #ifndef APP */
	.chat-input-button { display: flex; }
/* #endif */
	.bubble-text { font-size: 27rpx; line-height: 43rpx; color: #344259; }
	.user-text { color: #ffffff; }
	.question-text { flex: 1; margin-right: 12rpx; color: #0868f7; font-size: 24rpx; line-height: 38rpx; }
	.sending-text { font-size: 25rpx; line-height: 40rpx; color: #75869d; }
	.error-text { flex: 1; color: #bb4857; font-size: 23rpx; line-height: 36rpx; }
	.retry-text { color: #0868f7; font-size: 25rpx; padding: 0 6rpx; }
	.chat-end { height: 12rpx; }
	.assistant-error { margin: 18rpx 0 0 94rpx; color: #e05a5a; font-size: 21rpx; flex-direction: row; justify-content: space-between; }
	.assistant-error-text-last-child { color: #0868f7; margin-left: 18rpx; }
</style>