feat(fun): 添加 AI 剧本生成功能
- 在 素材录入页面添加 AI 生成剧本按钮 - 新增 AiDrama 页面用于与 AI 助手交互 - 实现与 DeepSeek API 的流式和非流式通信 - 添加 Markdown 渲染功能 - 优化聊天界面布局和交互
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@ -656,6 +656,12 @@
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"navigationBarTitleText": "视频预览",
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"navigationBarBackgroundColor": "#fff"
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}
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},{
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"path": "AiDrama",
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"style": {
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"navigationBarTitleText": "AI 剧本助手",
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"navigationBarBackgroundColor": "#fff"
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}
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}]
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},
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{
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@ -0,0 +1,634 @@
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<template>
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<view class="chat-container">
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<!-- 聊天内容区域 -->
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<scroll-view
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class="chat-content"
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scroll-y
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:scroll-top="scrollTop"
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:scroll-with-animation="true"
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@scrolltoupper="loadMoreMessages"
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:refresher-enabled="false"
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ref="scrollView"
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>
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<view class="message-wrapper-box" >
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<view v-for="(message, index) in messages" :key="index" class="message-wrapper">
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<!-- 系统消息或AI消息 -->
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<block v-if="message.role === 'system' || message.role === 'assistant'">
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<view class="message-container ai-message-container">
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<view class="message ai-message">
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<!-- 使用渲染后的Markdown内容 -->
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<rich-text class="message-content markdown-body" :nodes="message.renderedContent"></rich-text>
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</view>
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<text class="message-time">{{ message.time }}</text>
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</view>
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<!-- 在每条AI消息后显示确认按钮(除了系统消息) -->
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<view v-if="message.role === 'assistant' && message.endStatus" class="accept-button-container">
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<u-button
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type="success"
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size="mini"
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@click="acceptScript(message.content)"
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:custom-style="{marginTop: '10px'}"
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>
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<u-icon name="checkmark" size="14" class="button-icon"></u-icon>
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确认使用此剧本
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</u-button>
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</view>
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</block>
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<!-- 用户消息 -->
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<block v-else-if="message.role === 'user'">
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<view class="message-container user-message-container">
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<view class="message user-message">
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<text class="message-content">{{ message.content }}</text>
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</view>
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<text class="message-time">{{ message.time }}</text>
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</view>
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</block>
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</view>
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<!-- 加载中提示 -->
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<view v-if="loading" class="loading-container">
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<u-loading mode="circle" size="24"></u-loading>
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<text class="loading-text">正在生成剧本...</text>
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</view>
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<!-- 用于滚动到底部的空白元素 -->
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<view id="scroll-bottom-anchor" style="height: 1px;"></view>
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<!-- 底部占位,确保内容不被输入框遮挡 -->
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<view class="bottom-placeholder"></view>
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</view>
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</scroll-view>
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<!-- 输入区域 - 固定在底部 -->
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<view class="chat-input-container">
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<view class="chat-input">
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<u-input
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v-model="inputMessage"
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placeholder="请输入剧本相关描述,AI将为您生成专业剧本..."
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:disabled="loading"
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type='textarea'
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:auto-height="true"
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:custom-style="{flex: 1, minHeight: '80rpx', maxHeight: '200rpx'}"
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@confirm="sendMessage"
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></u-input>
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<u-button
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type="primary"
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:disabled="loading || !inputMessage.trim()"
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@click="sendMessage"
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:custom-style="{marginLeft: '10px'}"
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>
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发送
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</u-button>
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</view>
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</view>
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</view>
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</template>
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<script>
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import { renderMarkdown } from './markdown.js';
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export default {
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data() {
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return {
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// 聊天消息列表
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messages: [
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{
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role: 'system',
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content: '你好!我是你的AI剧本助手。请告诉我你想创作的剧本类型和主要情节,我会为你生成专业的剧本内容。',
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renderedContent: '',
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time: this.formatTime(new Date()),
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endStatus: true
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}
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],
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// 输入框内容
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inputMessage: '',
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// 加载状态
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loading: false,
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// 滚动位置
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scrollTop: 0,
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// URL参数
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orderId: '',
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// API密钥
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apiKey: 'sk-uobtjwyzastkxcnrrbllxpftqxdumkafnitdqqhoermmioru',
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// 当前AI消息索引
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currentAiMessageIndex: -1,
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// 是否是H5环境
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isH5: false,
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// 是否需要滚动到底部
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needScrollToBottom: true,
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// 滚动计时器
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scrollTimer: null
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};
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},
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onLoad(options) {
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// 从URL获取参数
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this.orderId = options.orderId || '';
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// 检测是否是H5环境
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// #ifdef H5
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this.isH5 = true;
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// #endif
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// 初始化
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this.initPage();
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// 渲染初始消息的Markdown内容
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this.renderAllMarkdown();
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},
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onReady() {
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// 页面加载完成后滚动到底部
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this.throttledScrollToBottom();
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},
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onUnload() {
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// 清除滚动计时器
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if (this.scrollTimer) {
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clearTimeout(this.scrollTimer);
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this.scrollTimer = null;
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}
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},
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watch: {
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// 监听消息变化,自动滚动到底部
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messages: {
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deep: true,
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handler() {
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if (this.needScrollToBottom) {
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this.throttledScrollToBottom();
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}
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}
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}
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},
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methods: {
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// 初始化页面
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initPage() {
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// 设置导航栏标题
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uni.setNavigationBarTitle({
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title: 'AI 剧本助手'
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});
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},
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// 渲染所有消息的Markdown内容
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renderAllMarkdown() {
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this.messages.forEach((message, index) => {
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if (message.role === 'system' || message.role === 'assistant') {
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this.messages[index].renderedContent = renderMarkdown(message.content);
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}
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});
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},
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// 格式化时间为 HH:MM 格式
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formatTime(date) {
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const hours = date.getHours().toString().padStart(2, '0');
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const minutes = date.getMinutes().toString().padStart(2, '0');
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return `${hours}:${minutes}`;
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},
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// 发送消息
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async sendMessage() {
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if (!this.inputMessage.trim() || this.loading) return;
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// 添加用户消息
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const userMessage = {
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role: 'user',
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content: this.inputMessage,
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time: this.formatTime(new Date())
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};
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this.messages.push(userMessage);
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// 清空输入框
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const userInput = this.inputMessage;
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this.inputMessage = '';
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// 设置加载状态
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this.loading = true;
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// 滚动到底部
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this.throttledScrollToBottom();
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try {
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// 准备发送给API的消息
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const apiMessages = [
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{
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role: 'system',
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content: '你好!我是你的AI剧本助手。请告诉我你想创作的剧本类型和主要情节,我会为你生成专业的剧本内容。请使用Markdown格式来组织你的回答,可以使用标题、列表、粗体、斜体等Markdown语法来增强可读性。'
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},
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...this.messages
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.filter(msg => msg.role !== 'system')
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.map(msg => ({
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role: msg.role,
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content: msg.content
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}))
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];
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// 在H5环境中使用fetch API进行流式请求
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if (this.isH5) {
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await this.fetchStreamResponse(apiMessages);
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} else {
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// 在非H5环境中使用普通请求
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await this.fetchNormalResponse(apiMessages);
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}
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} catch (error) {
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console.error('API请求失败:', error);
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uni.showToast({
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title: '生成剧本失败,请稍后重试',
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icon: 'none'
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});
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} finally {
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this.loading = false;
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// 滚动到底部
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this.throttledScrollToBottom();
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}
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},
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// 使用fetch API进行流式请求(仅H5环境)
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async fetchStreamResponse(apiMessages) {
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try {
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// 添加一个空的AI回复,用于流式更新
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this.currentAiMessageIndex = this.messages.length;
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this.messages.push({
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role: 'assistant',
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content: '',
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renderedContent: '',
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time: this.formatTime(new Date()),
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endStatus: false
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});
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const response = await fetch('https://api.siliconflow.cn/v1/chat/completions', {
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method: 'POST',
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headers: {
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'Authorization': `Bearer ${this.apiKey}`,
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({
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model: 'deepseek-ai/DeepSeek-R1-Distill-Qwen-7B',
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messages: apiMessages,
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stream: true,
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max_tokens: 8192,
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stop: '',
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temperature: 0.6,
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top_p: 0.7,
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top_k: 50,
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frequency_penalty: 0
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})
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});
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if (!response.ok) {
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throw new Error(`API请求失败: ${response.status}`);
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}
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if (!response.body) {
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throw new Error('响应体为空');
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}
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const reader = response.body.getReader();
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const decoder = new TextDecoder();
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let result = '';
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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const chunk = decoder.decode(value);
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const lines = chunk.split('\n').filter(line => line.trim() !== '');
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for (const line of lines) {
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if (line.startsWith('data: ')) {
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const data = line.substring(6).trim();
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if (data === '[DONE]') {
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// 设置消息已完成状态
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if (this.currentAiMessageIndex >= 0 && this.currentAiMessageIndex < this.messages.length) {
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this.messages[this.currentAiMessageIndex].endStatus = true;
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// 最后一次滚动到底部
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this.throttledScrollToBottom();
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}
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continue;
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}
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try {
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const parsed = JSON.parse(data);
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// 检查parsed和choices是否存在
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if (!parsed || !parsed.choices || !Array.isArray(parsed.choices) || parsed.choices.length === 0) {
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console.warn('无效的响应格式:', data);
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continue;
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}
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// 安全地访问delta属性
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const delta = parsed.choices[0].delta || {};
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// 根据您提供的格式解析内容
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const content = delta.content;
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// 有些响应可能包含reasoning_content而不是content
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const reasoningContent = delta.reasoning_content || '';
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// 只有当content不是null且有值,或者reasoningContent有值时才添加
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const textToAdd = (content !== null && content !== undefined) ? content : reasoningContent;
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if (textToAdd) {
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result += textToAdd;
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// 确保messages[currentAiMessageIndex]存在
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if (this.currentAiMessageIndex >= 0 && this.currentAiMessageIndex < this.messages.length) {
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this.messages[this.currentAiMessageIndex].content = result;
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this.messages[this.currentAiMessageIndex].renderedContent = renderMarkdown(result);
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// 滚动到底部,但限制频率以提高性能
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this.throttledScrollToBottom();
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}
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}
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} catch (e) {
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console.error('解析流数据失败:', e, line);
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}
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}
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}
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}
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return result;
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} catch (error) {
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console.error('调用DeepSeek流式API失败:', error);
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// 如果出错,确保移除空的AI消息
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if (this.messages.length > 0 && this.messages[this.messages.length - 1].content === '') {
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this.messages.pop();
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this.currentAiMessageIndex = -1;
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}
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throw error;
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}
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},
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// 使用普通请求(非H5环境)
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async fetchNormalResponse(apiMessages) {
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try {
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// 添加一个空的AI回复
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this.currentAiMessageIndex = this.messages.length;
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this.messages.push({
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role: 'assistant',
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content: '',
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renderedContent: '',
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time: this.formatTime(new Date()),
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endStatus: false
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});
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const response = await uni.request({
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url: 'https://api.siliconflow.cn/v1/chat/completions',
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method: 'POST',
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header: {
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'Authorization': `Bearer ${this.apiKey}`,
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'Content-Type': 'application/json'
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},
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data: {
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model: 'deepseek-ai/DeepSeek-R1-Distill-Qwen-7B',
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messages: apiMessages,
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stream: false,
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max_tokens: 8192,
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stop: '',
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temperature: 0.6,
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top_p: 0.7,
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top_k: 50,
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frequency_penalty: 0
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},
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dataType: 'json'
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});
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// 检查响应状态
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if (response.statusCode !== 200) {
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throw new Error(`API请求失败: ${response.statusCode}`);
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}
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// 获取响应内容
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const result = response.data.choices[0].message.content;
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// 更新消息内容
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this.messages[this.currentAiMessageIndex].content = result;
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this.messages[this.currentAiMessageIndex].renderedContent = renderMarkdown(result);
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this.messages[this.currentAiMessageIndex].endStatus = true;
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// 滚动到底部
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this.throttledScrollToBottom();
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return result;
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} catch (error) {
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console.error('调用DeepSeek API失败:', error);
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// 如果出错,确保移除空的AI消息
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if (this.messages.length > 0 && this.messages[this.messages.length - 1].content === '') {
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this.messages.pop();
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this.currentAiMessageIndex = -1;
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}
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throw error;
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}
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},
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// 接受剧本
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acceptScript(scriptContent) {
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// // 使用全局方法返回选择的剧本
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// getApp().globalData.selectedScript = {
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// orderId: this.orderId,
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// content: scriptContent
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// };
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// const pages = getCurrentPages();
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// // 上一个页面实例(假设是 pageA)
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// const prevPage = pages[pages.length - 2];
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// console.log("prevPage",prevPage)
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uni.showToast({
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title: '已确认使用此剧本',
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icon: 'success'
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});
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// 返回上一页
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// setTimeout(() => {
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// uni.navigateBack();
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// }, 1500);
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// 当前页面(假设是 pageB)
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uni.navigateBack({
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delta: 1, // 返回的页面层数,1 表示返回上一个页面
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success: function() {
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// 获取页面栈
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const pages = getCurrentPages();
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// 上一个页面实例(假设是 pageA)
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const prevPage = pages[pages.length - 2];
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console.log("prevPage",prevPage)
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// 调用上一个页面的方法
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prevPage.getAiDramaTxt(scriptContent);
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}
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});
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},
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// 节流滚动到底部函数,避免频繁滚动
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throttledScrollToBottom() {
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// if (this.scrollTimer) return;
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// this.scrollTimer = setTimeout(() => {
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// this.scrollToBottom();
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// this.scrollTimer = null;
|
||||
// }, 1000); // 300ms内只执行一次滚动
|
||||
this.$u.throttle(this.scrollToBottom, 300)
|
||||
},
|
||||
|
||||
// 滚动到底部
|
||||
scrollToBottom() {
|
||||
this.$nextTick(() => {
|
||||
// 方法1: 使用scrollTop设置滚动位置
|
||||
// const query = uni.createSelectorQuery().in(this);
|
||||
// query.select('.chat-content').boundingClientRect(data => {
|
||||
// if (data) {
|
||||
// // 设置一个非常大的值确保滚动到底部
|
||||
// this.scrollTop = 999999;
|
||||
// }
|
||||
// }).exec();
|
||||
|
||||
// 方法2: 使用选择器定位到底部锚点元素
|
||||
setTimeout(() => {
|
||||
const query = uni.createSelectorQuery().in(this);
|
||||
query.select('#scroll-bottom-anchor').boundingClientRect(data => {
|
||||
if (data) {
|
||||
// 滚动到锚点元素位置
|
||||
uni.pageScrollTo({
|
||||
selector: '#scroll-bottom-anchor',
|
||||
duration: 100
|
||||
});
|
||||
}
|
||||
}).exec();
|
||||
}, 100);
|
||||
});
|
||||
},
|
||||
|
||||
// 加载更多消息(上拉加载)
|
||||
loadMoreMessages() {
|
||||
// 这里可以实现加载历史消息的逻辑
|
||||
// 目前不需要,保留接口
|
||||
this.needScrollToBottom = false; // 上拉加载时禁用自动滚动
|
||||
|
||||
// 加载完成后恢复自动滚动
|
||||
setTimeout(() => {
|
||||
this.needScrollToBottom = true;
|
||||
}, 1000);
|
||||
}
|
||||
}
|
||||
}
|
||||
</script>
|
||||
|
||||
<style lang="scss">
|
||||
.chat-container {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
height: calc(100vh - var(--window-top));
|
||||
position: relative;
|
||||
}
|
||||
|
||||
.chat-content {
|
||||
flex: 1;
|
||||
background-color: #f5f7fa;
|
||||
// padding: 20rpx;
|
||||
// padding-bottom: 180rpx; /* 为底部输入框留出空间 */
|
||||
}
|
||||
|
||||
.message-wrapper-box{
|
||||
padding: 20rpx;
|
||||
// padding-bottom: 180rpx; /* 为底部输入框留出空间 */
|
||||
}
|
||||
|
||||
.message-wrapper {
|
||||
margin-bottom: 40rpx;
|
||||
}
|
||||
|
||||
.message-container {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
}
|
||||
|
||||
.ai-message-container {
|
||||
align-items: flex-start;
|
||||
}
|
||||
|
||||
.user-message-container {
|
||||
align-items: flex-end;
|
||||
}
|
||||
|
||||
.message {
|
||||
max-width: calc(80% - 40rpx);
|
||||
padding: 24rpx 30rpx;
|
||||
border-radius: 16rpx;
|
||||
position: relative;
|
||||
}
|
||||
|
||||
.ai-message {
|
||||
background-color: #fff;
|
||||
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
|
||||
}
|
||||
|
||||
.user-message {
|
||||
background-color: #4e6ef2;
|
||||
color: white;
|
||||
box-shadow: 0 2px 8px rgba(78, 110, 242, 0.2);
|
||||
}
|
||||
|
||||
.message-content {
|
||||
line-height: 1.5;
|
||||
word-break: break-word;
|
||||
}
|
||||
|
||||
/* Markdown样式 */
|
||||
.markdown-body {
|
||||
color: #333;
|
||||
}
|
||||
|
||||
.message-time {
|
||||
font-size: 24rpx;
|
||||
color: #909399;
|
||||
margin-top: 10rpx;
|
||||
padding: 0 10rpx;
|
||||
}
|
||||
|
||||
.user-message-container .message-time {
|
||||
color: #909399;
|
||||
}
|
||||
|
||||
/* 固定在底部的输入区域 */
|
||||
.chat-input-container {
|
||||
// position: fixed;
|
||||
// bottom: 0;
|
||||
// left: 0;
|
||||
// right: 0;
|
||||
background-color: #fff;
|
||||
border-top: 1px solid #ebeef5;
|
||||
padding: 20rpx 30rpx;
|
||||
box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
|
||||
z-index: 100;
|
||||
// min-height: 170rpx;
|
||||
margin-top: auto;
|
||||
position: sticky;
|
||||
bottom: 0;
|
||||
}
|
||||
|
||||
.chat-input {
|
||||
display: flex;
|
||||
align-items: flex-end;
|
||||
}
|
||||
|
||||
.bottom-placeholder {
|
||||
height: 40rpx; /* 确保内容不被输入框遮挡 */
|
||||
}
|
||||
|
||||
.accept-button-container {
|
||||
// display: flex;
|
||||
// justify-content: flex-start;
|
||||
// margin-top: 20rpx;
|
||||
margin-bottom: 40rpx;
|
||||
}
|
||||
|
||||
.loading-container {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
color: #909399;
|
||||
font-size: 28rpx;
|
||||
margin: 20rpx 0;
|
||||
}
|
||||
|
||||
.loading-text {
|
||||
margin-left: 16rpx;
|
||||
}
|
||||
|
||||
.button-icon {
|
||||
margin-right: 8rpx;
|
||||
}
|
||||
</style>
|
|
@ -0,0 +1,64 @@
|
|||
// 简单的Markdown渲染函数
|
||||
export function renderMarkdown(content) {
|
||||
if (!content) return '';
|
||||
|
||||
// 由于UniApp的rich-text组件支持HTML,我们将Markdown转换为HTML
|
||||
// 这是一个简化版的Markdown解析器,仅支持基本语法
|
||||
|
||||
let html = content
|
||||
// 转义HTML特殊字符
|
||||
.replace(/&/g, '&')
|
||||
.replace(/</g, '<')
|
||||
.replace(/>/g, '>')
|
||||
|
||||
// 标题
|
||||
.replace(/^# (.*$)/gm, '<h1>$1</h1>')
|
||||
.replace(/^## (.*$)/gm, '<h2>$1</h2>')
|
||||
.replace(/^### (.*$)/gm, '<h3>$1</h3>')
|
||||
.replace(/^#### (.*$)/gm, '<h4>$1</h4>')
|
||||
.replace(/^##### (.*$)/gm, '<h5>$1</h5>')
|
||||
.replace(/^###### (.*$)/gm, '<h6>$1</h6>')
|
||||
|
||||
// 粗体和斜体
|
||||
.replace(/\*\*(.*?)\*\*/g, '<strong>$1</strong>')
|
||||
.replace(/\*(.*?)\*/g, '<em>$1</em>')
|
||||
.replace(/__(.*?)__/g, '<strong>$1</strong>')
|
||||
.replace(/_(.*?)_/g, '<em>$1</em>')
|
||||
|
||||
// 链接
|
||||
.replace(/\[([^\]]+)\]$$([^)]+)$$/g, '<a href="$2">$1</a>')
|
||||
|
||||
// 图片
|
||||
.replace(/!\[([^\]]+)\]$$([^)]+)$$/g, '<img src="$2" alt="$1">')
|
||||
|
||||
// 无序列表
|
||||
.replace(/^\s*[-*+]\s+(.*$)/gm, '<li>$1</li>')
|
||||
|
||||
// 有序列表
|
||||
.replace(/^\s*\d+\.\s+(.*$)/gm, '<li>$1</li>')
|
||||
|
||||
// 代码块
|
||||
.replace(/```([\s\S]*?)```/g, '<pre><code>$1</code></pre>')
|
||||
|
||||
// 行内代码
|
||||
.replace(/`([^`]+)`/g, '<code>$1</code>')
|
||||
|
||||
// 引用
|
||||
.replace(/^\> (.*$)/gm, '<blockquote>$1</blockquote>')
|
||||
|
||||
// 段落
|
||||
.replace(/\n\s*\n/g, '</p><p>')
|
||||
|
||||
// 换行
|
||||
.replace(/\n/g, '<br>');
|
||||
|
||||
// 包装在段落标签中
|
||||
html = '<p>' + html + '</p>';
|
||||
|
||||
// 修复列表
|
||||
html = html.replace(/<li>.*?<\/li>/g, function(match) {
|
||||
return '<ul>' + match + '</ul>';
|
||||
});
|
||||
|
||||
return html;
|
||||
}
|
|
@ -8,6 +8,16 @@
|
|||
<u-icon name="arrow-down-fill" color="#999" size="28"></u-icon>
|
||||
</view>
|
||||
</view>
|
||||
|
||||
<view class="form-item">
|
||||
<text class="form-label">剧本 <text class="form-hint">视频的剧本</text> </text>
|
||||
<!-- 文本输入 -->
|
||||
<template>
|
||||
<u-input style="max-height: 500rpx;overflow-y: auto;" :disabled="getDisabledStatus()" maxlength="9999" type='textarea' class="bg-gray" v-model="scriptContent" :placeholder="`请输入剧本`" />
|
||||
</template>
|
||||
<u-button @click="openAiDrama" type="primary" :disabled="getDisabledStatus()">Ai生成剧本</u-button>
|
||||
</view>
|
||||
|
||||
<view v-for="(item,index) in materialTemplateList" :key="index" class="form-item">
|
||||
<text class="form-label">{{ item.attrTitle }} <text class="form-hint">{{ item.attrHint ? '(' +item.attrHint + ')' : '' }}</text> </text>
|
||||
<!-- 文本输入 -->
|
||||
|
@ -100,6 +110,7 @@
|
|||
audioType: ['.wav', '.mp3', '.aac', '.flac', '.ogg'],
|
||||
audioH5Type: ['wav', 'mp3', 'aac', 'flac', 'ogg'],
|
||||
buttonLoading:false,
|
||||
scriptContent:'',
|
||||
// videoType: ['.avi', '.mp4', '.mkv', '.flv', '.mov', '.wmv', '.mpeg', '.3gp'],
|
||||
}
|
||||
},
|
||||
|
@ -112,6 +123,14 @@
|
|||
this.getProductDetail();
|
||||
},
|
||||
methods: {
|
||||
getAiDramaTxt(txt){
|
||||
this.scriptContent = txt;
|
||||
},
|
||||
openAiDrama(){
|
||||
uni.navigateTo({
|
||||
url:'./AiDrama'
|
||||
})
|
||||
},
|
||||
getDisabledStatus(){
|
||||
if(this.commitState !== 'add' && this.commitState !== 'draft' && this.commitState !== 'back'){
|
||||
return true;
|
||||
|
|
Loading…
Reference in New Issue