feat: Phase 1-3 全部完成 — 沙盒增强、学情分析、学习路径
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yuzhiran-dev
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import { Controller, Get, UseGuards, Req } from '@nestjs/common';
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import { ApiTags, ApiBearerAuth } from '@nestjs/swagger';
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import { AuthGuard } from '@nestjs/passport';
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import { LearningService } from './learning.service';
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@ApiTags('学习分析')
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@Controller('learning')
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@UseGuards(AuthGuard('jwt'))
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@ApiBearerAuth()
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export class LearningController {
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constructor(private learningService: LearningService) {}
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@Get('analytics')
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async getAnalytics(@Req() req: any) {
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return this.learningService.getAnalytics(req.user.userId);
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}
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@Get('path')
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async getLearningPath(@Req() req: any) {
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return this.learningService.getLearningPath(req.user.userId);
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}
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}
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@@ -0,0 +1,10 @@
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import { Module } from '@nestjs/common';
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import { LearningController } from './learning.controller';
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import { LearningService } from './learning.service';
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@Module({
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controllers: [LearningController],
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providers: [LearningService],
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exports: [LearningService],
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})
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export class LearningModule {}
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import { Injectable } from '@nestjs/common';
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import { PrismaService } from '../../prisma/prisma.service';
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const KNOWLEDGE_DOMAINS = [
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{ id: 'ai-basics', name: 'AI 基础知识', keywords: ['AI', '人工智能', '大模型', 'chatgpt', 'gpt', '大语言模型', 'llm', '深度学习', '神经网络', 'machine learning', '机器学习'] },
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{ id: 'prompt-engineering', name: '提示词工程', keywords: ['提示词', 'prompt', 'system prompt', 'role', 'few-shot', 'chain-of-thought', 'cot'] },
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{ id: 'programming', name: '编程开发', keywords: ['python', 'javascript', 'typescript', 'java', '代码', '函数', '算法', 'debug', 'bug', '编程', '开发', 'react', 'vue', 'node'] },
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{ id: 'writing', name: '写作创作', keywords: ['写作', '文章', '文案', '润色', '作文', '创作', '故事', '小说', '博客'] },
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{ id: 'english', name: '英语学习', keywords: ['英语', 'english', '翻译', '语法', 'grammar', 'vocabulary', '口语', '写作', '阅读'] },
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{ id: 'data-science', name: '数据分析', keywords: ['数据', '分析', '统计', '图表', '可视化', 'sql', 'excel', 'pandas', 'numpy', '数据分析'] },
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{ id: 'office', name: '办公效率', keywords: ['ppt', 'excel', 'word', '办公', '邮件', '报告', '文档', '会议', '总结'] },
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{ id: 'career', name: '职业发展', keywords: ['简历', '面试', '求职', '职业', '工作', '升职', '薪资'] },
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];
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const COURSE_RECOMMENDATIONS: Record<string, { title: string; url: string }[]> = {
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'ai-basics': [
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{ title: 'AI 通识：零基础入门', url: '/courses' },
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{ title: '大模型原理与应用', url: '/courses' },
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],
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'prompt-engineering': [
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{ title: '提示词工程从入门到精通', url: '/courses' },
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{ title: '高级 Prompt 技巧', url: '/prompts' },
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],
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'programming': [
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{ title: '用 Python 入门 AI 编程', url: '/courses' },
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{ title: 'AI 辅助编程实战', url: '/sandbox' },
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],
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'writing': [
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{ title: 'AI 写作实战指南', url: '/prompts/workshop' },
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{ title: '内容创作与润色技巧', url: '/courses' },
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],
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'english': [
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{ title: 'AI 辅助英语学习', url: '/sandbox' },
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{ title: '英语写作提升课程', url: '/courses' },
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],
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'data-science': [
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{ title: '数据分析入门', url: '/courses' },
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{ title: 'Python 数据分析', url: '/courses' },
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],
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'office': [
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{ title: '用 AI 提升 10 倍办公效率', url: '/courses' },
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{ title: 'AI 办公自动化', url: '/courses' },
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],
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'career': [
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{ title: 'AI 时代职业规划', url: '/courses' },
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{ title: '面试技巧与简历优化', url: '/sandbox' },
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],
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};
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@Injectable()
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export class LearningService {
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constructor(private prisma: PrismaService) {}
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async getAnalytics(userId: number) {
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const sessions = await this.prisma.sandboxSession.findMany({
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where: { userId },
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orderBy: { createdAt: 'desc' },
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take: 100,
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});
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const domainCounts: Record<string, number> = {};
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const domainDates: Record<string, string> = {};
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const totalSessions = sessions.length;
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for (const domain of KNOWLEDGE_DOMAINS) {
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domainCounts[domain.id] = 0;
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}
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for (const session of sessions) {
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const searchText = `${session.title} ${session.messages || ''}`.toLowerCase();
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for (const domain of KNOWLEDGE_DOMAINS) {
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const matched = domain.keywords.some(kw => searchText.includes(kw));
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if (matched) {
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domainCounts[domain.id] = (domainCounts[domain.id] || 0) + 1;
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if (!domainDates[domain.id] || session.createdAt.toISOString() > domainDates[domain.id]) {
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domainDates[domain.id] = session.createdAt.toISOString();
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}
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}
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}
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}
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const domains = KNOWLEDGE_DOMAINS.map(d => {
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const count = domainCounts[d.id] || 0;
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const totalSessionsForUser = Math.max(totalSessions, 1);
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const mastery = Math.min(Math.round((count / Math.max(totalSessionsForUser * 0.3, 1)) * 100), 100);
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return {
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id: d.id,
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name: d.name,
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sessionCount: count,
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mastery,
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lastActive: domainDates[d.id] || null,
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weak: mastery < 30,
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};
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});
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const weakDomains = domains.filter(d => d.weak);
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const recommendations = weakDomains.length > 0
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? weakDomains.slice(0, 3).flatMap(d => (COURSE_RECOMMENDATIONS[d.id] || []).slice(0, 2))
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: [{ title: '探索更多知识领域', url: '/sandbox' }];
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return {
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domains,
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totalSessions,
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weakDomains: weakDomains.map(d => d.name),
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recommendations: [...new Map(recommendations.map(r => [r.title, r])).values()],
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};
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}
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async getLearningPath(userId: number) {
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const sessions = await this.prisma.sandboxSession.findMany({
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where: { userId },
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select: { title: true, messages: true },
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});
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const allText = sessions.map(s => `${s.title} ${s.messages || ''}`.toLowerCase()).join(' ');
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const stages = [
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{
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id: 'basics',
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title: '认识大模型',
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icon: '🤖',
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description: '了解 AI 和大型语言模型的基本概念，学会如何使用 AI 工具。',
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tasks: [
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{ label: '了解 AI 基本概念', action: '向 AI 提问什么是人工智能', keyword: '人工智能' },
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{ label: '认识大语言模型', action: '向 AI 提问什么是大模型', keyword: '大模型' },
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{ label: '体验 AI 对话', action: '在沙盒中发起一次对话', keyword: '' },
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],
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links: [
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{ title: 'AI 通识：零基础入门', url: '/courses' },
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{ title: '打开 AI 沙盒', url: '/sandbox' },
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],
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},
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{
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id: 'prompt',
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title: '提示词工程',
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icon: '✍️',
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description: '学习如何编写高质量的提示词，掌握与 AI 高效沟通的技巧。',
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tasks: [
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{ label: '了解提示词基础', action: '询问提示词编写技巧', keyword: '提示词' },
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{ label: '练习提示词编写', action: '在提示词工坊中测试', keyword: '' },
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{ label: '保存优质提示词', action: '将好的提示词保存到库中', keyword: '' },
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],
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links: [
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{ title: '提示词工坊', url: '/prompts/workshop' },
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{ title: '提示词库', url: '/prompts' },
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],
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},
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{
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id: 'advanced',
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title: '模型微调与高级应用',
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icon: '⚙️',
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description: '了解模型微调、RAG、Function Calling 等高级技术。',
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tasks: [
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{ label: '了解模型微调', action: '询问什么是模型微调', keyword: '微调' },
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{ label: '了解 RAG', action: '询问什么是 RAG 检索增强', keyword: 'rag' },
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{ label: '了解 Function Calling', action: '询问 function calling 是什么', keyword: 'function calling' },
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],
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links: [
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{ title: 'AI 沙盒 - 对比模式', url: '/sandbox/compare' },
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{ title: '代码沙盒', url: '/sandbox/code' },
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],
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},
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{
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id: 'agent',
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title: 'Agent 开发',
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icon: '🚀',
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description: '学习构建 AI Agent，实现自动化任务和复杂工作流。',
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tasks: [
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{ label: '了解 AI Agent', action: '询问什么是 AI Agent', keyword: 'agent' },
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{ label: '学习工具调用', action: '询问 AI 工具调用机制', keyword: 'tool' },
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{ label: '实践项目', action: '尝试用 AI 构建一个小项目', keyword: '' },
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],
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links: [
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{ title: '代码沙盒 - 运行项目', url: '/sandbox/code' },
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{ title: '对比实验室', url: '/sandbox/compare' },
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],
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},
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];
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return stages.map(stage => {
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const completedCount = stage.tasks.filter(t => !t.keyword || allText.includes(t.keyword)).length;
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const progress = stage.tasks.length > 0 ? Math.round((completedCount / stage.tasks.length) * 100) : 0;
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return {
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...stage,
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completedCount,
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totalTasks: stage.tasks.length,
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progress,
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unlocked: true,
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};
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});
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}
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}
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