update
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@@ -1,6 +1,7 @@
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import { readFileSync } from 'node:fs'
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import { Hono } from 'hono'
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const SYSTEM_PROMPT = `你是一名教学设计专家,需要根据用户提供的主题生成一份 Markdown 格式的教案。
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const DEFAULT_SYSTEM_PROMPT = `你是一名教学设计专家,需要根据用户提供的主题生成一份 Markdown 格式的教案。
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请严格遵循以下结构(标题、表格列数、章节名称必须完全一致,便于程序解析),只输出 Markdown 正文本身,不要使用代码块包裹整篇文档,不要添加任何额外说明:
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1. 第一行是一级标题:\`# <课程标题> 教学设计\`
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@@ -19,6 +20,14 @@ const SYSTEM_PROMPT = `你是一名教学设计专家,需要根据用户提供
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- \`| **教学反思** | ... |\`
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`
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function loadSystemPrompt(): string {
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try {
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return readFileSync('data/SKILLS.md', 'utf8')
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} catch {
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return DEFAULT_SYSTEM_PROMPT
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}
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}
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function sanitizeFilename(topic: string): string {
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const sanitized = topic.trim().replace(/[\\/:*?"<>|]/g, '_')
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return sanitized || 'lesson'
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@@ -39,6 +48,8 @@ export function createGenerateRouter(apiKey: string | undefined): Hono {
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return c.json({ error: '未配置 DEEPSEEK_API_KEY。' }, 500)
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}
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const systemPrompt = loadSystemPrompt()
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let response: Response
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try {
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response = await fetch('https://api.deepseek.com/chat/completions', {
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@@ -48,9 +59,9 @@ export function createGenerateRouter(apiKey: string | undefined): Hono {
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Authorization: `Bearer ${apiKey}`,
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},
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body: JSON.stringify({
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model: 'deepseek-chat',
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model: 'deepseek-v4-flash',
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messages: [
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{ role: 'system', content: SYSTEM_PROMPT },
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{ role: 'system', content: systemPrompt },
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{ role: 'user', content: `请围绕主题"${topic.trim()}"生成一份教案。` },
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],
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}),
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@@ -66,14 +77,75 @@ export function createGenerateRouter(apiKey: string | undefined): Hono {
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const payload = (await response.json().catch(() => null)) as
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| { choices?: Array<{ message?: { content?: string } }> }
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| null
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const markdown = payload?.choices?.[0]?.message?.content
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const raw = payload?.choices?.[0]?.message?.content
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if (!markdown) {
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if (!raw) {
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return c.json({ error: 'Deepseek 返回内容为空。' }, 502)
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}
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const fenceMatch = raw.trim().match(/^```(?:\w+)?\n([\s\S]*?)\n```\s*$/)
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const markdown = fenceMatch ? fenceMatch[1]! : raw
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return c.json({ filename: `${sanitizeFilename(topic)}.md`, markdown })
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})
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app.post('/outline', async (c) => {
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const body = (await c.req.json().catch(() => null)) as { theme?: unknown } | null
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const theme = body?.theme
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if (typeof theme !== 'string' || theme.trim() === '') {
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return c.json({ error: '请提供课程主题。' }, 400)
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}
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if (!apiKey) {
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return c.json({ error: '未配置 DEEPSEEK_API_KEY。' }, 500)
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}
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let response: Response
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try {
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response = await fetch('https://api.deepseek.com/chat/completions', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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Authorization: `Bearer ${apiKey}`,
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},
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body: JSON.stringify({
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model: 'deepseek-v4-flash',
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messages: [
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{
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role: 'system',
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content:
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'你是教学设计专家。根据用户提供的课程主题,生成一份完整的课时大纲标题列表,共约18条。' +
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'每个标题格式为"项目名——课时任务",一行一个,不加序号、不加任何说明,直接输出标题列表。',
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},
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{ role: 'user', content: `课程主题:${theme.trim()}` },
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],
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}),
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})
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} catch {
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return c.json({ error: 'Deepseek 请求失败,请检查网络后重试。' }, 502)
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}
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if (!response.ok) {
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return c.json({ error: `Deepseek 请求失败(状态码 ${response.status})。` }, 502)
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}
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const payload = (await response.json().catch(() => null)) as
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| { choices?: Array<{ message?: { content?: string } }> }
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| null
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const raw = payload?.choices?.[0]?.message?.content
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if (!raw) {
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return c.json({ error: 'Deepseek 返回内容为空。' }, 502)
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}
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const titles = raw
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.split('\n')
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.map((line) => line.trim())
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.filter(Boolean)
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return c.json({ titles })
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})
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return app
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}
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