feat: AI assistant panel, editor improvements, vite and package config

vite.config.ts

@@ -2,6 +2,7 @@ import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
 import { resolve } from 'path'
 import fs from 'fs'
+import { spawn } from 'child_process'
 
 function apiSavePlugin() {
   return {
@@ -29,6 +30,87 @@ function apiSavePlugin() {
           }
         })
       })
+
+      const dedupMap = new Map<string, number>()
+
+      server.middlewares.use('/api/ai', (req: any, res: any) => {
+        if (req.method !== 'POST') { res.writeHead(405); res.end(); return }
+        let body = ''
+        req.on('data', (c: string) => body += c)
+        req.on('end', () => {
+          try {
+            const { sessionId, userMessage, apiKey, mode } = JSON.parse(body)
+            if (!userMessage || !sessionId) { res.writeHead(400); res.end(JSON.stringify({ error: 'missing fields' })); return }
+
+            const dedupKey = `${mode}_${userMessage}`
+            const last = dedupMap.get(dedupKey) || 0
+            if (Date.now() - last < 3000) {
+              res.writeHead(429)
+              res.end(JSON.stringify({ error: 'duplicate request' }))
+              return
+            }
+            dedupMap.set(dedupKey, Date.now())
+
+            const modePrefix = mode === 'code'
+              ? '代码模式：直接修改 src/ 下的源码文件并保存。需求：'
+              : 'JSON模式：只返回修改后的 JSON 文本，不要写任何文件。需求：'
+            const fullMessage = modePrefix + userMessage
+
+            const opencodeBin = resolve(__dirname, 'node_modules', '.bin', 'opencode')
+            const child = spawn(opencodeBin, ['run', '--session', sessionId, '--model', 'deepseek', '--format', 'json', fullMessage], {
+              env: { ...process.env, DEEPSEEK_API_KEY: apiKey || process.env.DEEPSEEK_API_KEY || '' },
+              timeout: 15000,
+            })
+
+            let stdout = ''
+            let stderr = ''
+            child.stdout.on('data', (d: Buffer) => stdout += d.toString())
+            child.stderr.on('data', (d: Buffer) => stderr += d.toString())
+
+            child.on('close', (code) => {
+              if (code !== 0) {
+                res.writeHead(500)
+                res.end(JSON.stringify({ error: 'opencode exited with code ' + code, stderr }))
+                return
+              }
+              if (mode === 'json') {
+                // try to extract JSON block from response
+                const match = stdout.match(/```json\n?([\s\S]*?)\n?```|\{[\s\S]*\}/)
+                const jsonStr = match ? (match[1] || match[0]) : stdout
+                try { JSON.parse(jsonStr) } catch {
+                  res.writeHead(500)
+                  res.end(JSON.stringify({ error: 'invalid JSON returned', raw: stdout }))
+                  return
+                }
+                res.writeHead(200, { 'Content-Type': 'application/json' })
+                res.end(JSON.stringify({ result: jsonStr }))
+              } else {
+                res.writeHead(200, { 'Content-Type': 'application/json' })
+                res.end(JSON.stringify({ result: stdout || 'done' }))
+              }
+            })
+          } catch (e: any) {
+            res.writeHead(400)
+            res.end(JSON.stringify({ error: e.message }))
+          }
+        })
+      })
+
+      server.middlewares.use('/api/ai/sessions', (req: any, res: any) => {
+        try {
+          const opencodeBin = resolve(__dirname, 'node_modules', '.bin', 'opencode')
+          const child = spawn(opencodeBin, ['session', 'list'], { timeout: 5000 })
+          let stdout = ''
+          child.stdout.on('data', (d: Buffer) => stdout += d.toString())
+          child.on('close', () => {
+            res.writeHead(200, { 'Content-Type': 'application/json' })
+            res.end(stdout || '[]')
+          })
+        } catch {
+          res.writeHead(200, { 'Content-Type': 'application/json' })
+          res.end('[]')
+        }
+      })
     },
   }
 }