// 每一个存储的模块，命名规则use开头，store结尾
import router from '@/router'
import { defineStore } from 'pinia'
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
	images: Array<{ url: string; name: string }>
	type: string
	area: string
	style: string
	useReport: boolean
	needSuggestion: boolean
	quoteList: Array<string>
	tempImages: any[]
}
export const useAgentStore = defineStore('agent', () => {
	const initialProjectData = ref<InitialProjectData | null>(null)

	// 保存项目初始数据
	const setInitialProjectData = (data: InitialProjectData) => {
		initialProjectData.value = data
	}

	// 获取项目初始数据
	const getInitialProjectData = computed(() => initialProjectData.value)

	// 清空项目初始数据
	const clearInitialProjectData = () => {
		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,
		conversationCache,
		saveCacheConversation,
		getCacheConversation,
		removeCacheConversation,
		clearAllCacheConversations,
		getCacheStats
	}
})