/*
 * Copyright (c) Mengning Software. 2025. All rights reserved.
 * Authors: DevStar Team,  panshuxiao
 * Create: 2025-11-19
 * Description: Core business logic for AppStore lifecycle.
 */

package appstore

import (
	"context"
	"encoding/json"
	"fmt"
	"net/http"
	"strings"
	"time"

	appstore_model "code.gitea.io/gitea/models/appstore"
	user_app_instance "code.gitea.io/gitea/models/appstore"
	applicationv1 "code.gitea.io/gitea/modules/k8s/api/application/v1"
	"code.gitea.io/gitea/modules/log"
	gitea_context "code.gitea.io/gitea/services/context"
)

// Manager handles app store operations with database
type Manager struct {
	parser *Parser
	ctx    context.Context
	k8s    *K8sManager
	userID int64 // 当前用户ID
}

// NewManager creates a new app store manager for database operations
func NewManager(ctx *gitea_context.Context, userID int64) *Manager {
	return &Manager{
		parser: NewParser(),
		ctx:    *ctx,
		k8s:    NewK8sManager(*ctx),
		userID: userID,
	}
}

func buildCredentialFromInput(installTarget, k8sURL, token string) *K8sCredential {
	if installTarget == "kubeconfig" && k8sURL != "" && token != "" {
		return &K8sCredential{
			K8sURL: k8sURL,
			Token:  token,
		}
	}
	return nil
}

func credentialFromInstance(instance *user_app_instance.UserAppInstance) *K8sCredential {
	if instance == nil {
		return nil
	}
	if instance.K8sURL != "" && instance.K8sToken != "" {
		return &K8sCredential{
			K8sURL: instance.K8sURL,
			Token:  instance.K8sToken,
		}
	}
	return nil
}

// ListApps returns all available applications from database
func (m *Manager) ListApps() ([]App, error) {
	appStores, err := appstore_model.ListAppStores(m.ctx, nil)
	if err != nil {
		return nil, &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "Failed to list apps from database",
			Details: err.Error(),
		}
	}

	var apps []App
	for _, appStore := range appStores {
		if app, err := m.convertAppStoreToApp(appStore); err == nil {
			apps = append(apps, *app)
		}
	}

	return apps, nil
}

// ListUserAppInstances returns user's installed application instances
func (m *Manager) ListUserAppInstances() ([]App, error) {
	// 获取用户的应用实例
	instances, err := user_app_instance.GetUserAppInstances(m.ctx, m.userID)
	if err != nil {
		return nil, &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "获取用户应用实例失败",
			Details: err.Error(),
		}
	}

	var apps []App
	for _, instance := range instances {
		// 从实例的 MergedApp JSON 中解析应用信息
		var app App
		if err := json.Unmarshal([]byte(instance.MergedApp), &app); err != nil {
			log.Error("Failed to unmarshal merged app for instance %d: %v", instance.ID, err)
			continue
		}
		apps = append(apps, app)
	}

	return apps, nil
}

// ListAppsFromDevstar 从 devstar.cn 拉取应用列表
func (m *Manager) ListAppsFromDevstar() ([]App, error) {
	client := &http.Client{Timeout: 10 * time.Second}
	url := "https://devstar.cn/api/v1/appstore/apps"
	resp, err := client.Get(url)
	if err != nil {
		return nil, &AppStoreError{Code: "REMOTE_ERROR", Message: "Failed to fetch apps from devstar", Details: err.Error()}
	}
	defer resp.Body.Close()
	if resp.StatusCode != http.StatusOK {
		return nil, &AppStoreError{Code: "REMOTE_ERROR", Message: "Invalid status from devstar", Details: resp.Status}
	}
	var payload struct {
		Apps []App `json:"apps"`
	}
	if err := json.NewDecoder(resp.Body).Decode(&payload); err != nil {
		return nil, &AppStoreError{Code: "REMOTE_ERROR", Message: "Failed to decode devstar response", Details: err.Error()}
	}
	return payload.Apps, nil
}

// GetApp returns a specific application from database
func (m *Manager) GetApp(appID string) (*App, error) {
	appStore, err := appstore_model.GetAppStoreByAppID(m.ctx, appID)
	if err != nil {
		return nil, &AppStoreError{
			Code:    "APP_NOT_FOUND",
			Message: "App not found in database",
			Details: err.Error(),
		}
	}

	return m.convertAppStoreToApp(appStore)
}

// convertAppStoreToApp convert database AppStore model to App struct
func (m *Manager) convertAppStoreToApp(appStore *appstore_model.AppStore) (*App, error) {
	// 基本信息直接从数据库字段获取
	app := App{
		ID:             appStore.AppID,
		Name:           appStore.Name,
		Description:    appStore.Description,
		Category:       appStore.Category,
		Tags:           appStore.GetTagsList(),
		Icon:           appStore.Icon,
		Author:         appStore.Author,
		Website:        appStore.Website,
		Repository:     appStore.Repository,
		License:        appStore.License,
		Version:        appStore.Version,
		DeploymentType: appStore.DeploymentType,
	}

	// 如果JSONData不为空，交由 parser 解析并合并（DB 字段优先）
	if appStore.JSONData != "" {
		merged, err := m.parser.ParseAndMergeApp([]byte(appStore.JSONData), &app)
		if err != nil {
			return nil, err
		}
		app = *merged
	}

	return &app, nil
}

// convertAppToAppStore converts App struct to database AppStore model
func (m *Manager) convertAppToAppStore(app *App) (*appstore_model.AppStore, error) {
	jsonData, err := json.Marshal(app)
	if err != nil {
		return nil, &AppStoreError{
			Code:    "JSON_MARSHAL_ERROR",
			Message: "Failed to marshal app to JSON",
			Details: err.Error(),
		}
	}

	appStore := &appstore_model.AppStore{
		AppID:          app.ID,
		Name:           app.Name,
		Description:    app.Description,
		Category:       app.Category,
		Icon:           app.Icon,
		Author:         app.Author,
		Website:        app.Website,
		Repository:     app.Repository,
		License:        app.License,
		Version:        app.Version,
		DeploymentType: app.DeploymentType,
		JSONData:       string(jsonData),
		IsActive:       true,
		IsOfficial:     false,
		IsVerified:     true,
	}

	appStore.SetTagsList(app.Tags)
	return appStore, nil
}

// SearchApps searches for applications by various criteria
func (m *Manager) SearchApps(query string, category string, tags []string) ([]App, error) {
	apps, err := m.ListApps()
	if err != nil {
		return nil, err
	}

	var results []App
	query = strings.ToLower(query)

	for _, app := range apps {
		// Check if app matches search criteria
		matches := false

		// Text search
		if query != "" {
			if strings.Contains(strings.ToLower(app.Name), query) ||
				strings.Contains(strings.ToLower(app.Description), query) ||
				strings.Contains(strings.ToLower(app.Author), query) {
				matches = true
			}
		} else {
			matches = true
		}

		// Category filter
		if category != "" && app.Category != category {
			matches = false
		}

		// Tags filter
		if len(tags) > 0 {
			tagMatch := false
			for _, searchTag := range tags {
				for _, appTag := range app.Tags {
					if strings.EqualFold(appTag, searchTag) {
						tagMatch = true
						break
					}
				}
				if tagMatch {
					break
				}
			}
			if !tagMatch {
				matches = false
			}
		}

		if matches {
			results = append(results, app)
		}
	}

	return results, nil
}

// GetCategories returns all available categories
func (m *Manager) GetCategories() ([]string, error) {
	apps, err := m.ListApps()
	if err != nil {
		return nil, err
	}

	categories := make(map[string]bool)
	for _, app := range apps {
		categories[app.Category] = true
	}

	var result []string
	for category := range categories {
		result = append(result, category)
	}

	return result, nil
}

// GetTags returns all available tags
func (m *Manager) GetTags() ([]string, error) {
	apps, err := m.ListApps()
	if err != nil {
		return nil, err
	}

	tags := make(map[string]bool)
	for _, app := range apps {
		for _, tag := range app.Tags {
			tags[tag] = true
		}
	}

	var result []string
	for tag := range tags {
		result = append(result, tag)
	}

	return result, nil
}

// PrepareInstallation prepares an application for installation by merging user config
// Returns a complete App structure with merged configuration
// func (m *Manager) PrepareInstallation(appID string, userConfig UserConfig) (*App, error) {
// 	// Load the application
// 	app, err := m.GetApp(appID)
// 	if err != nil {
// 		return nil, err
// 	}

// 	// Set the app ID and version in user config if not provided
// 	if userConfig.AppID == "" {
// 		userConfig.AppID = appID
// 	}
// 	if userConfig.Version == "" {
// 		userConfig.Version = app.Version
// 	}

// 	// Merge user configuration with app's default configuration
// 	mergedApp, err := m.parser.MergeUserConfig(app, userConfig)
// 	if err != nil {
// 		return nil, err
// 	}

// 	return mergedApp, nil
// }

// AddApp adds a new application to the database
func (m *Manager) AddApp(app *App) error {
	// Validate the app
	if err := m.parser.validateAppTemplate(app); err != nil {
		return err
	}

	// Convert to database model
	appStore, err := m.convertAppToAppStore(app)
	if err != nil {
		return err
	}

	// Save to database
	if err := appstore_model.CreateAppStore(m.ctx, appStore); err != nil {
		return &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "Failed to create app in database",
			Details: err.Error(),
		}
	}

	return nil
}

// AddAppFromJSON 通过 parser 解析原始 JSON 并添加应用
func (m *Manager) AddAppFromJSON(jsonBytes []byte) error {
	app, err := m.parser.ParseAppTemplate(jsonBytes)
	if err != nil {
		return err
	}
	return m.AddApp(app)
}

// UpdateApp updates an existing application in database
func (m *Manager) UpdateApp(app *App) error {
	// Validate the app
	if err := m.parser.validateApp(app); err != nil {
		return err
	}

	// Get existing app from database
	existingAppStore, err := appstore_model.GetAppStoreByAppID(m.ctx, app.ID)
	if err != nil {
		return &AppStoreError{
			Code:    "APP_NOT_FOUND",
			Message: "App not found in database",
			Details: err.Error(),
		}
	}

	// Convert to database model
	appStore, err := m.convertAppToAppStore(app)
	if err != nil {
		return err
	}

	// Preserve database ID and timestamps
	appStore.ID = existingAppStore.ID
	appStore.CreatedUnix = existingAppStore.CreatedUnix

	// Update in database
	if err := appstore_model.UpdateAppStore(m.ctx, appStore); err != nil {
		return &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "Failed to update app in database",
			Details: err.Error(),
		}
	}

	return nil
}

// RemoveApp removes an application template from the database
func (m *Manager) RemoveApp(appID string) error {
	// 获取应用模板记录
	appStore, err := appstore_model.GetAppStoreByAppID(m.ctx, appID)
	if err != nil {
		return &AppStoreError{
			Code:    "APP_NOT_FOUND",
			Message: "应用模板不存在",
			Details: err.Error(),
		}
	}

	// 删除应用模板
	if err := appstore_model.DeleteAppStore(m.ctx, appStore.ID); err != nil {
		return &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "删除应用模板失败",
			Details: err.Error(),
		}
	}

	log.Info("Successfully removed app template %s", appID)
	return nil
}

// GetAppConfigSchema returns the configuration schema for an application
func (m *Manager) GetAppConfigSchema(appID string) (*AppConfig, error) {
	app, err := m.GetApp(appID)
	if err != nil {
		return nil, err
	}

	return &app.Config, nil
}

// ValidateUserConfig validates user configuration against app schema
func (m *Manager) ValidateUserConfig(appID string, userConfig UserConfig) error {
	app, err := m.GetApp(appID)
	if err != nil {
		return err
	}

	// Set the app ID and version in user config if not provided
	if userConfig.AppID == "" {
		userConfig.AppID = appID
	}
	if userConfig.Version == "" {
		userConfig.Version = app.Version
	}

	// Try to merge config (this will validate)
	_, err = m.parser.MergeUserConfig(app, userConfig)
	return err
}

// InstallApp installs an application based on the provided parameters
func (m *Manager) InstallApp(appID string, configJSON string, installTarget string, k8sURL string, token string) error {
	// 获取应用信息
	app, err := m.GetApp(appID)
	if err != nil {
		return &AppStoreError{
			Code:    "APP_NOT_FOUND",
			Message: "获取应用失败",
			Details: err.Error(),
		}
	}

	// 使用 parser 解析和合并用户配置
	log.Info("InstallApp: configJSON = %s", configJSON)
	mergedApp, err := m.parser.ParseAndMergeUserConfig(app, configJSON)
	if err != nil {
		return &AppStoreError{
			Code:    "CONFIG_MERGE_ERROR",
			Message: "配置合并失败",
			Details: err.Error(),
		}
	}

	// 确定部署类型
	deployType := mergedApp.Deploy.Type
	if deployType == "" {
		// 如果 Deploy.Type 为空，根据 DeploymentType 推断
		switch mergedApp.DeploymentType {
		case "kubernetes", "both":
			deployType = "kubernetes"
		case "docker":
			deployType = "docker"
		}
	}

	inputCred := buildCredentialFromInput(installTarget, k8sURL, token)
	if installTarget == "kubeconfig" {
		if inputCred == nil {
			return &AppStoreError{
				Code:    "INVALID_K8S_CREDENTIAL",
				Message: "自定义 Kubernetes 安装需要提供 API 地址和 Token",
			}
		}
		if deployType != "kubernetes" {
			return &AppStoreError{
				Code:    "DEPLOYMENT_TYPE_ERROR",
				Message: "该应用不支持 Kubernetes 部署",
			}
		}
	}

	// 根据应用实际部署类型决定安装方式
	log.Info("InstallApp: mergedApp.Deploy.Type = %s", mergedApp.Deploy.Type)
	switch deployType {
	case "kubernetes":
		if err := m.InstallAppToKubernetes(mergedApp, inputCred); err != nil {
			return &AppStoreError{
				Code:    "KUBERNETES_INSTALL_ERROR",
				Message: "Kubernetes 安装失败",
				Details: err.Error(),
			}
		}
	case "docker":
		// TODO: 实现 Docker 安装逻辑
		return &AppStoreError{
			Code:    "NOT_IMPLEMENTED",
			Message: "本地 Docker 安装功能开发中",
		}
	default:
		return &AppStoreError{
			Code:    "NOT_IMPLEMENTED",
			Message: "本地安装功能开发中",
		}
	}

	// 安装成功后，保存用户应用实例到数据库
	mergedAppJSON, err := json.Marshal(mergedApp)
	if err != nil {
		log.Error("Failed to marshal merged app: %v", err)
		return &AppStoreError{
			Code:    "JSON_MARSHAL_ERROR",
			Message: "保存应用配置失败",
			Details: err.Error(),
		}
	}

	instance := &user_app_instance.UserAppInstance{
		UserID:       m.userID,
		AppID:        appID,
		InstanceName: mergedApp.Name,
		UserConfig:   configJSON,
		MergedApp:    string(mergedAppJSON),
		DeployType:   deployType,
	}
	if inputCred != nil && deployType == "kubernetes" {
		instance.K8sURL = inputCred.K8sURL
		instance.K8sToken = inputCred.Token
	}

	if err := user_app_instance.CreateUserAppInstance(m.ctx, instance); err != nil {
		log.Error("Failed to create user app instance: %v", err)
		return &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "保存应用实例失败",
			Details: err.Error(),
		}
	}

	log.Info("Successfully installed app %s for user %d", appID, m.userID)
	return nil
}

// UpdateInstalledApp updates an already installed application with new configuration
// The update flow mirrors InstallApp: merge config → choose target → call K8s/Docker updater
func (m *Manager) UpdateInstalledApp(appID string, configJSON string, installTarget string, k8sURL string, token string) error {
	// 获取用户的应用实例
	instance, err := user_app_instance.GetUserAppInstanceByAppID(m.ctx, m.userID, appID)
	if err != nil {
		return &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "获取应用实例失败",
			Details: err.Error(),
		}
	}
	if instance == nil {
		return &AppStoreError{
			Code:    "APP_NOT_INSTALLED",
			Message: "应用未安装",
		}
	}

	// 获取应用模板信息
	app, err := m.GetApp(appID)
	if err != nil {
		return &AppStoreError{
			Code:    "APP_NOT_FOUND",
			Message: "获取应用失败",
			Details: err.Error(),
		}
	}

	// 使用 parser 解析和合并用户配置
	mergedApp, err := m.parser.ParseAndMergeUserConfig(app, configJSON)
	if err != nil {
		return &AppStoreError{
			Code:    "CONFIG_MERGE_ERROR",
			Message: "配置合并失败",
			Details: err.Error(),
		}
	}

	// 确定部署类型
	deployType := mergedApp.Deploy.Type
	if deployType == "" {
		deployType = instance.DeployType
	}

	inputCred := buildCredentialFromInput(installTarget, k8sURL, token)
	if installTarget == "kubeconfig" && inputCred == nil {
		return &AppStoreError{
			Code:    "INVALID_K8S_CREDENTIAL",
			Message: "自定义 Kubernetes 更新需要提供 API 地址和 Token",
		}
	}
	if installTarget == "kubeconfig" && deployType != "kubernetes" {
		return &AppStoreError{
			Code:    "DEPLOYMENT_TYPE_ERROR",
			Message: "该应用不支持 Kubernetes 部署",
		}
	}

	// 根据部署类型执行更新
	switch deployType {
	case "kubernetes":
		targetCred := inputCred
		if targetCred == nil {
			targetCred = credentialFromInstance(instance)
		}
		if err := m.UpdateAppInKubernetes(mergedApp, targetCred); err != nil {
			return &AppStoreError{Code: "KUBERNETES_UPDATE_ERROR", Message: "Kubernetes 更新失败", Details: err.Error()}
		}
	default:
		return &AppStoreError{Code: "NOT_IMPLEMENTED", Message: "本地 Docker 更新功能开发中"}
	}

	// 更新成功后，写回数据库
	mergedAppJSON, err := json.Marshal(mergedApp)
	if err != nil {
		log.Error("Failed to marshal merged app: %v", err)
		return &AppStoreError{
			Code:    "JSON_MARSHAL_ERROR",
			Message: "保存应用配置失败",
			Details: err.Error(),
		}
	}

	instance.UserConfig = configJSON
	instance.MergedApp = string(mergedAppJSON)
	instance.DeployType = deployType
	if deployType == "kubernetes" {
		if inputCred != nil {
			instance.K8sURL = inputCred.K8sURL
			instance.K8sToken = inputCred.Token
		} else if installTarget != "kubeconfig" {
			instance.K8sURL = ""
			instance.K8sToken = ""
		}
	} else {
		instance.K8sURL = ""
		instance.K8sToken = ""
	}

	if err := user_app_instance.UpdateUserAppInstance(m.ctx, instance); err != nil {
		log.Error("Failed to update user app instance: %v", err)
		return &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "更新应用实例失败",
			Details: err.Error(),
		}
	}

	log.Info("Successfully updated app %s for user %d", appID, m.userID)
	return nil
}

// UninstallApp uninstalls an application
// It automatically determines whether to uninstall from external cluster or local cluster
// based on the Kubernetes credential stored in the database instance
func (m *Manager) UninstallApp(appID string) error {
	// 获取用户的应用实例
	instance, err := user_app_instance.GetUserAppInstanceByAppID(m.ctx, m.userID, appID)
	if err != nil {
		return &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "获取应用实例失败",
			Details: err.Error(),
		}
	}
	if instance == nil {
		return &AppStoreError{
			Code:    "APP_NOT_INSTALLED",
			Message: "应用未安装",
		}
	}

	// 从实例中解析应用信息
	var app App
	if err := json.Unmarshal([]byte(instance.MergedApp), &app); err != nil {
		return &AppStoreError{
			Code:    "JSON_UNMARSHAL_ERROR",
			Message: "解析应用配置失败",
			Details: err.Error(),
		}
	}

	// 根据数据库中保存的凭据判断卸载方式：存在 URL+Token 则视为外部集群，否则使用默认集群
	cred := credentialFromInstance(instance)
	if instance.DeployType == "kubernetes" {
		if cred != nil {
			log.Info("UninstallApp: Uninstalling from external cluster, appID=%s, url=%s", appID, cred.K8sURL)
		} else {
			log.Info("UninstallApp: Uninstalling from default cluster, appID=%s", appID)
		}

		if err := m.UninstallAppFromKubernetes(&app, cred); err != nil {
			return &AppStoreError{
				Code:    "KUBERNETES_UNINSTALL_ERROR",
				Message: "Kubernetes 卸载失败",
				Details: err.Error(),
			}
		}
	} else {
		return &AppStoreError{
			Code:    "NOT_IMPLEMENTED",
			Message: "本地 Docker 卸载功能开发中",
		}
	}
	// 卸载成功后，删除用户应用实例
	if err := user_app_instance.DeleteUserAppInstanceByAppID(m.ctx, m.userID, appID); err != nil {
		log.Error("Failed to delete user app instance: %v", err)
		// 注意：这里不返回错误，因为 Kubernetes 资源已经成功卸载
		// 数据库记录删除失败不应该影响卸载操作的成功
		log.Warn("Kubernetes resources uninstalled successfully, but failed to delete database record for app %s, user %d", appID, m.userID)
	}

	log.Info("Successfully uninstalled app %s for user %d", appID, m.userID)
	return nil
}

// InstallAppToKubernetes installs an application to a Kubernetes cluster
func (m *Manager) InstallAppToKubernetes(app *App, cred *K8sCredential) error {
	return m.k8s.InstallAppToKubernetes(app, cred)
}

// UninstallAppFromKubernetes uninstalls an application from a Kubernetes cluster
func (m *Manager) UninstallAppFromKubernetes(app *App, cred *K8sCredential) error {
	return m.k8s.UninstallAppFromKubernetes(app, cred)
}

// GetAppFromKubernetes gets an application from a Kubernetes cluster
func (m *Manager) GetAppFromKubernetes(app *App, cred *K8sCredential) (interface{}, error) {
	return m.k8s.GetAppFromKubernetes(app, cred)
}

// ListAppsFromKubernetes lists applications from a Kubernetes cluster
func (m *Manager) ListAppsFromKubernetes(app *App, cred *K8sCredential) (*applicationv1.ApplicationList, error) {
	return m.k8s.ListAppsFromKubernetes(app, cred)
}

// UpdateAppInKubernetes updates an application in a Kubernetes cluster
func (m *Manager) UpdateAppInKubernetes(app *App, cred *K8sCredential) error {
	return m.k8s.UpdateAppInKubernetes(app, cred)
}

// IsInstalledAppReady 提供给上层的就绪判断入口，避免直接依赖 k8s 层实现
func (m *Manager) IsInstalledAppReady(status *applicationv1.ApplicationStatus) bool {
	return m.k8s.IsApplicationReady(status)
}

// GetAppStatus 获取应用的安装和运行状态
func (m *Manager) GetAppStatus(appID string) (map[string]interface{}, error) {
	// 获取用户的应用实例
	instance, err := user_app_instance.GetUserAppInstanceByAppID(m.ctx, m.userID, appID)
	if err != nil {
		return nil, &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "获取应用实例失败",
			Details: err.Error(),
		}
	}
	if instance == nil {
		// 应用未安装
		return map[string]interface{}{
			"phase":         "Not Installed",
			"replicas":      0,
			"readyReplicas": 0,
			"ready":         false,
		}, nil
	}

	// 从实例中解析应用信息
	var app App
	if err := json.Unmarshal([]byte(instance.MergedApp), &app); err != nil {
		return nil, &AppStoreError{
			Code:    "JSON_UNMARSHAL_ERROR",
			Message: "解析应用配置失败",
			Details: err.Error(),
		}
	}

	// 检查应用是否支持 Kubernetes 部署
	if instance.DeployType == "kubernetes" {
		// 尝试从 Kubernetes 获取状态
		cred := credentialFromInstance(instance)

		k8sApp, err := m.GetAppFromKubernetes(&app, cred)
		if err != nil {
			// 如果应用实例存在于数据库中，但 Kubernetes 中找不到，可能是被暂停了
			// 返回暂停状态而不是未安装状态
			return map[string]interface{}{
				"phase":         "Paused",
				"replicas":      0,
				"readyReplicas": 0,
				"ready":         false,
			}, nil
		}

		// 应用已安装，返回状态信息
		if k8sApp != nil {
			// 尝试解析 K8s Application 状态
			if appData, ok := k8sApp.(*applicationv1.Application); ok {
				// 使用 Application CRD 的实际状态
				phase := string(appData.Status.Phase)
				replicas := int(appData.Status.Replicas)
				readyReplicas := int(appData.Status.ReadyReplicas)

				// 判断是否就绪
				ready := m.IsInstalledAppReady(&appData.Status)

				return map[string]interface{}{
					"phase":         phase,
					"replicas":      replicas,
					"readyReplicas": readyReplicas,
					"ready":         ready,
				}, nil
			}
			// 如果无法解析，返回错误
			return nil, &AppStoreError{
				Code:    "STATUS_PARSE_ERROR",
				Message: "无法解析应用状态数据",
				Details: fmt.Sprintf("期望 *applicationv1.Application 类型，实际类型: %T", k8sApp),
			}
		}
	}

	// 默认返回未安装状态
	return map[string]interface{}{
		"phase":         "Not Installed",
		"replicas":      0,
		"readyReplicas": 0,
		"ready":         false,
	}, nil
}

// StopApp stops an application by setting replicas to 0
func (m *Manager) StopApp(appID string, installTarget string, k8sURL string, token string) error {
	// 获取用户的应用实例
	instance, err := user_app_instance.GetUserAppInstanceByAppID(m.ctx, m.userID, appID)
	if err != nil {
		return &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "获取应用实例失败",
			Details: err.Error(),
		}
	}
	if instance == nil {
		return &AppStoreError{
			Code:    "APP_NOT_INSTALLED",
			Message: "应用未安装",
		}
	}

	// 从实例中解析应用信息
	var app App
	if err := json.Unmarshal([]byte(instance.MergedApp), &app); err != nil {
		return &AppStoreError{
			Code:    "JSON_UNMARSHAL_ERROR",
			Message: "解析应用配置失败",
			Details: err.Error(),
		}
	}

	// 检查应用是否支持 Kubernetes 部署
	if instance.DeployType == "kubernetes" {
		// 创建应用的副本并设置副本数为 0
		stoppedApp := app
		if stoppedApp.Deploy.Kubernetes != nil {
			stoppedApp.Deploy.Kubernetes.Replicas = 0
		}

		cred := buildCredentialFromInput(installTarget, k8sURL, token)
		if cred == nil {
			cred = credentialFromInstance(instance)
		}

		if err := m.UpdateAppInKubernetes(&stoppedApp, cred); err != nil {
			return &AppStoreError{
				Code:    "KUBERNETES_STOP_ERROR",
				Message: "停止应用失败",
				Details: err.Error(),
			}
		}
		return nil
	}

	// 如果应用不支持 Kubernetes 部署，返回错误
	return &AppStoreError{
		Code:    "UNSUPPORTED_DEPLOYMENT_TYPE",
		Message: fmt.Sprintf("应用部署类型 '%s' 不支持暂停功能，目前仅支持 Kubernetes 部署的应用", instance.DeployType),
	}
}

// ResumeApp resumes an application by restoring its original replica count
func (m *Manager) ResumeApp(appID string, installTarget string, k8sURL string, token string) error {
	// 获取用户的应用实例
	instance, err := user_app_instance.GetUserAppInstanceByAppID(m.ctx, m.userID, appID)
	if err != nil {
		return &AppStoreError{
			Code:    "DATABASE_ERROR",
			Message: "获取应用实例失败",
			Details: err.Error(),
		}
	}
	if instance == nil {
		return &AppStoreError{
			Code:    "APP_NOT_INSTALLED",
			Message: "应用未安装",
		}
	}

	// 从实例中解析应用信息
	var app App
	if err := json.Unmarshal([]byte(instance.MergedApp), &app); err != nil {
		return &AppStoreError{
			Code:    "JSON_UNMARSHAL_ERROR",
			Message: "解析应用配置失败",
			Details: err.Error(),
		}
	}

	// 检查应用是否支持 Kubernetes 部署
	if instance.DeployType == "kubernetes" {
		// 恢复应用的原始副本数（从 MergedApp 中获取）
		resumedApp := app
		if resumedApp.Deploy.Kubernetes != nil {
			// 如果 MergedApp 中没有指定副本数，默认恢复为 1
			if resumedApp.Deploy.Kubernetes.Replicas == 0 {
				resumedApp.Deploy.Kubernetes.Replicas = 1
			}
		}

		cred := buildCredentialFromInput(installTarget, k8sURL, token)
		if cred == nil {
			cred = credentialFromInstance(instance)
		}

		if err := m.UpdateAppInKubernetes(&resumedApp, cred); err != nil {
			return &AppStoreError{
				Code:    "KUBERNETES_RESUME_ERROR",
				Message: "恢复应用失败",
				Details: err.Error(),
			}
		}
		return nil
	}

	// 如果应用不支持 Kubernetes 部署，返回错误
	return &AppStoreError{
		Code:    "UNSUPPORTED_DEPLOYMENT_TYPE",
		Message: fmt.Sprintf("应用部署类型 '%s' 不支持恢复功能，目前仅支持 Kubernetes 部署的应用", instance.DeployType),
	}
}