package com.aiosman.ravenow.utils

import android.content.Context
import android.content.Intent
import com.aiosman.ravenow.AppState
import com.aiosman.ravenow.ui.index.IndexViewModel
import com.aiosman.ravenow.ui.index.tabs.ai.AgentViewModel
import com.aiosman.ravenow.ui.index.tabs.ai.tabs.hot.HotAgentViewModel
import com.aiosman.ravenow.ui.index.tabs.ai.tabs.mine.MineAgentViewModel
import com.aiosman.ravenow.ui.index.tabs.moment.tabs.dynamic.DynamicViewModel
import com.aiosman.ravenow.ui.index.tabs.moment.tabs.hot.HotMomentViewModel
import com.aiosman.ravenow.ui.index.tabs.moment.tabs.timeline.TimelineMomentViewModel
import com.aiosman.ravenow.ui.index.tabs.profile.MyProfileViewModel
import com.aiosman.ravenow.ui.index.tabs.search.DiscoverViewModel
import com.aiosman.ravenow.ui.index.tabs.search.SearchViewModel
import com.aiosman.ravenow.ui.index.tabs.message.MessageListViewModel
import com.aiosman.ravenow.ui.like.LikeNoticeViewModel
import com.aiosman.ravenow.ui.favourite.FavouriteListViewModel
import com.aiosman.ravenow.ui.favourite.FavouriteNoticeViewModel
import com.aiosman.ravenow.ui.follower.FollowerNoticeViewModel
import com.aiosman.ravenow.ui.post.NewPostViewModel
import com.aiosman.ravenow.ui.imageviewer.ImageViewerViewModel
import org.greenrobot.eventbus.EventBus

/**
 * 资源清理管理器
 * 用于在Index页面退出时清理所有相关资源
 */
object ResourceCleanupManager {
    
    /**
     * 清理所有Index页面相关的资源
     * @param context 上下文
     */
    fun cleanupAllResources(context: Context) {
        try {
            // 1. 清理ViewModel资源
            cleanupViewModels()
            
            // 2. 清理EventBus注册
            cleanupEventBus()
            
            // 3. 清理服务
            cleanupServices(context)
            
            // 4. 清理缓存和临时数据
            cleanupCacheAndTempData()
            
            // 5. 重置应用状态
            resetAppState()
            
        } catch (e: Exception) {
            // 记录错误但不抛出异常，确保清理过程不会中断
            e.printStackTrace()
        }
    }
    
    /**
     * 清理所有ViewModel资源
     */
    private fun cleanupViewModels() {
        // 重置Index相关ViewModel
        IndexViewModel.ResetModel()
        
        // 重置AI相关ViewModel
        // AgentViewModel的属性是私有的，无法直接访问，通过其他方式清理
        
        HotAgentViewModel.let {
            it.agentList = emptyList()
            it.refreshing = false
            it.isLoading = false
            it.hasNext = true
            it.currentPage = 1
            it.error = null
            it.clearPreloadedImages()
        }
        
        MineAgentViewModel.let {
            it.refreshing = false
            it.isLoading = false
            it.hasNext = true
            it.currentPage = 1
            it.error = null
        }
        
        // 重置动态相关ViewModel
        TimelineMomentViewModel.ResetModel()
        DynamicViewModel.ResetModel()
        HotMomentViewModel.ResetModel()
        
        // 重置个人资料相关ViewModel
        MyProfileViewModel.ResetModel()
        
        // 重置搜索相关ViewModel
        // DiscoverViewModel的属性是私有的，无法直接访问，通过其他方式清理
        
        SearchViewModel.ResetModel()
        
        // 重置消息相关ViewModel
        MessageListViewModel.ResetModel()
        
        // 重置通知相关ViewModel
        LikeNoticeViewModel.ResetModel()
        FavouriteNoticeViewModel.ResetModel()
        FollowerNoticeViewModel.ResetModel()
        
        // 重置收藏相关ViewModel
        FavouriteListViewModel.ResetModel()
        
        // 重置发布相关ViewModel
        NewPostViewModel.asNewPost()
        
        // 重置图片查看器ViewModel
        ImageViewerViewModel.let {
            it.imageList.clear()
            it.initialIndex = 0
        }
    }
    
    /**
     * 清理EventBus注册
     */
    private fun cleanupEventBus() {
        try {
            // 取消所有ViewModel的EventBus注册
            val eventBus = EventBus.getDefault()
            
            // 检查并取消注册各种ViewModel
            if (eventBus.isRegistered(TimelineMomentViewModel)) {
                eventBus.unregister(TimelineMomentViewModel)
            }
            if (eventBus.isRegistered(DynamicViewModel)) {
                eventBus.unregister(DynamicViewModel)
            }
            if (eventBus.isRegistered(HotMomentViewModel)) {
                eventBus.unregister(HotMomentViewModel)
            }
            if (eventBus.isRegistered(MyProfileViewModel)) {
                eventBus.unregister(MyProfileViewModel)
            }
            if (eventBus.isRegistered(DiscoverViewModel)) {
                eventBus.unregister(DiscoverViewModel)
            }
            if (eventBus.isRegistered(SearchViewModel)) {
                eventBus.unregister(SearchViewModel)
            }
            if (eventBus.isRegistered(MessageListViewModel)) {
                eventBus.unregister(MessageListViewModel)
            }
            if (eventBus.isRegistered(LikeNoticeViewModel)) {
                eventBus.unregister(LikeNoticeViewModel)
            }
            if (eventBus.isRegistered(FavouriteListViewModel)) {
                eventBus.unregister(FavouriteListViewModel)
            }
            if (eventBus.isRegistered(FavouriteNoticeViewModel)) {
                eventBus.unregister(FavouriteNoticeViewModel)
            }
            if (eventBus.isRegistered(FollowerNoticeViewModel)) {
                eventBus.unregister(FollowerNoticeViewModel)
            }
        } catch (e: Exception) {
            // EventBus清理失败不影响其他清理
            e.printStackTrace()
        }
    }
    
    /**
     * 清理服务
     */
    private fun cleanupServices(context: Context) {
        try {
            // 停止TRTC服务
            // val trtcService = Intent(context, TrtcService::class.java)
            // context.stopService(trtcService)
        } catch (e: Exception) {
            // 服务停止失败不影响其他清理
            e.printStackTrace()
        }
    }
    
    /**
     * 清理缓存和临时数据
     */
    private fun cleanupCacheAndTempData() {
        try {
            // 清理图片缓存
            // 这里可以添加图片缓存清理逻辑
            
            // 清理临时文件
            // 这里可以添加临时文件清理逻辑
            
        } catch (e: Exception) {
            // 缓存清理失败不影响其他清理
            e.printStackTrace()
        }
    }
    
    /**
     * 重置应用状态
     */
    private fun resetAppState() {
        try {
            // 重置用户ID
            AppState.UserId = null
            
            // 重置其他应用状态
            // 这里可以添加其他应用状态的重置逻辑
            
        } catch (e: Exception) {
            // 状态重置失败不影响其他清理
            e.printStackTrace()
        }
    }
    
    /**
     * 清理特定页面的资源
     * @param pageType 页面类型
     */
    fun cleanupPageResources(pageType: String) {
        when (pageType) {
            "ai" -> {
                // AgentViewModel的属性是私有的，无法直接访问
                HotAgentViewModel.let {
                    it.agentList = emptyList()
                    it.refreshing = false
                    it.isLoading = false
                    it.hasNext = true
                    it.currentPage = 1
                    it.error = null
                    it.clearPreloadedImages()
                }
                MineAgentViewModel.let {
                    it.refreshing = false
                    it.isLoading = false
                    it.hasNext = true
                    it.currentPage = 1
                    it.error = null
                }
            }
            "moment" -> {
                TimelineMomentViewModel.ResetModel()
                DynamicViewModel.ResetModel()
                HotMomentViewModel.ResetModel()
            }
            "profile" -> {
                MyProfileViewModel.ResetModel()
            }
            "search" -> {
                // DiscoverViewModel的属性是私有的，无法直接访问
                SearchViewModel.ResetModel()
            }
            "message" -> {
                MessageListViewModel.ResetModel()
            }
        }
    }
}