feat: 用缓存处理对话中的项目切换问题

src/stores/agent.ts

@@ -5,7 +5,6 @@ import { ref, computed } from 'vue'
 import { removeLocal, setLocal } from '@/utils/local'
 import MyEvent from '@/utils/myEvent'
 
-
 // Agent 项目初始数据 store
 type InitialProjectData = {
 	text: string
@@ -13,13 +12,13 @@ type InitialProjectData = {
 	type: string
 	area: string
 	style: string
-	useReport:boolean
-	needSuggestion:boolean
+	useReport: boolean
+	needSuggestion: boolean
 	quoteList: Array<string>
 	tempImages: any[]
 }
 export const useAgentStore = defineStore('agent', () => {
-	const initialProjectData = ref<InitialProjectData | null>(null)  
+	const initialProjectData = ref<InitialProjectData | null>(null)
 
 	// 保存项目初始数据
 	const setInitialProjectData = (data: InitialProjectData) => {
@@ -34,10 +33,94 @@ export const useAgentStore = defineStore('agent', () => {
 		initialProjectData.value = null
 	}
 
+	// 会话缓存管理，最多保存 10 条会话
+	const conversationCache = new Map<string, any>()
+	const MAX_CACHE_ENTRIES = 10
+	const SESSION_KEY_PREFIX = 'agent_session_'
+
+	const pruneCache = () => {
+		const keys = Array.from(conversationCache.keys())
+		const total = conversationCache.size
+		if (total <= MAX_CACHE_ENTRIES) return
+
+		for (let i = 0; i < total - MAX_CACHE_ENTRIES; i++) {
+			conversationCache.delete(keys[i])
+			sessionStorage.removeItem(SESSION_KEY_PREFIX + keys[i])
+		}
+	}
+
+	const saveCacheConversation = (projectId: string, data: any) => {
+		if (!projectId) return
+
+		const finalData = {
+			...data,
+			updatedAt: Date.now()
+		}
+
+		if (conversationCache.has(projectId)) {
+			conversationCache.delete(projectId)
+		}
+
+		conversationCache.set(projectId, finalData)
+		try {
+			sessionStorage.setItem(SESSION_KEY_PREFIX + projectId, JSON.stringify(finalData))
+		} catch (e) {
+			console.warn('saveCacheConversation sessionStorage failed', e)
+		}
+
+		pruneCache()
+	}
+
+	const getCacheConversation = (projectId: string) => {
+		if (!projectId) return null
+
+		let data = conversationCache.get(projectId)
+		if (data) return data
+
+		try {
+			const raw = sessionStorage.getItem(SESSION_KEY_PREFIX + projectId)
+			if (!raw) return null
+			data = JSON.parse(raw)
+			conversationCache.set(projectId, data)
+			return data
+		} catch (e) {
+			console.warn('getCacheConversation failed', e)
+			return null
+		}
+	}
+
+	const clearAllCacheConversations = () => {
+		conversationCache.value.clear()
+		for (const key in window.sessionStorage) {
+			if (key.startsWith(SESSION_KEY_PREFIX)) {
+				sessionStorage.removeItem(key)
+			}
+		}
+	}
+
+	const removeCacheConversation = (projectId: string) => {
+		if (!projectId) return
+		conversationCache.value.delete(projectId)
+		sessionStorage.removeItem(SESSION_KEY_PREFIX + projectId)
+	}
+
+	const getCacheStats = () => {
+		return {
+			total: conversationCache.value.size,
+			keys: Array.from(conversationCache.value.keys())
+		}
+	}
+
 	return {
 		initialProjectData,
 		setInitialProjectData,
 		getInitialProjectData,
-		clearInitialProjectData
+		clearInitialProjectData,
+		conversationCache,
+		saveCacheConversation,
+		getCacheConversation,
+		removeCacheConversation,
+		clearAllCacheConversations,
+		getCacheStats
 	}
 })