315 lines
6.8 KiB
Go
315 lines
6.8 KiB
Go
package services
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import (
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"os"
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"path/filepath"
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"sync"
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"time"
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"voidraft/internal/models"
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"github.com/wailsapp/wails/v3/pkg/services/log"
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)
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// DocumentService 提供文档管理功能
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type DocumentService struct {
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configService *ConfigService
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logger *log.LoggerService
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document *models.Document
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docStore *Store[models.Document]
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mutex sync.RWMutex
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// 自动保存优化
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saveTimer *time.Timer
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isDirty bool
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lastSaveTime time.Time
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pendingContent string // 暂存待保存的内容
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}
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// NewDocumentService 创建文档服务
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func NewDocumentService(configService *ConfigService, logger *log.LoggerService) *DocumentService {
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if logger == nil {
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logger = log.New()
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}
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return &DocumentService{
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configService: configService,
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logger: logger,
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}
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}
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// Initialize 初始化服务
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func (ds *DocumentService) Initialize() error {
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if err := ds.initStore(); err != nil {
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return err
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}
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ds.loadDocument()
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ds.startAutoSave()
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return nil
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}
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// initStore 初始化存储
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func (ds *DocumentService) initStore() error {
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docPath, err := ds.getDocumentPath()
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if err != nil {
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return err
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}
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// 确保目录存在
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if err := os.MkdirAll(filepath.Dir(docPath), 0755); err != nil {
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return err
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}
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ds.docStore = NewStore[models.Document](StoreOption{
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FilePath: docPath,
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AutoSave: false,
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Logger: ds.logger,
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})
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return nil
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}
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// getDocumentPath 获取文档路径
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func (ds *DocumentService) getDocumentPath() (string, error) {
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config, err := ds.configService.GetConfig()
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if err != nil {
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return "", err
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}
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return filepath.Join(config.General.DataPath, "docs", "default.json"), nil
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}
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// loadDocument 加载文档
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func (ds *DocumentService) loadDocument() {
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ds.mutex.Lock()
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defer ds.mutex.Unlock()
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doc := ds.docStore.Get()
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if doc.Meta.ID == "" {
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// 创建新文档
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ds.document = models.NewDefaultDocument()
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ds.docStore.Set(*ds.document)
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ds.logger.Info("Document: Created new document")
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} else {
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ds.document = &doc
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ds.logger.Info("Document: Loaded existing document")
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}
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}
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// GetActiveDocument 获取活动文档
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func (ds *DocumentService) GetActiveDocument() (*models.Document, error) {
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ds.mutex.RLock()
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defer ds.mutex.RUnlock()
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if ds.document == nil {
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return nil, nil
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}
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// 返回副本
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docCopy := *ds.document
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return &docCopy, nil
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}
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// UpdateActiveDocumentContent 更新文档内容
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func (ds *DocumentService) UpdateActiveDocumentContent(content string) error {
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ds.mutex.Lock()
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defer ds.mutex.Unlock()
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if ds.document != nil {
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// 只在内容真正改变时才标记为脏
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if ds.document.Content != content {
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ds.pendingContent = content
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ds.isDirty = true
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}
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}
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return nil
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}
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// ForceSave 强制保存
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func (ds *DocumentService) ForceSave() error {
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ds.mutex.Lock()
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defer ds.mutex.Unlock()
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if ds.document == nil {
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return nil
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}
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// 应用待保存的内容
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if ds.pendingContent != "" {
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ds.document.Content = ds.pendingContent
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ds.pendingContent = ""
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}
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now := time.Now()
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ds.document.Meta.LastUpdated = now
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if err := ds.docStore.Set(*ds.document); err != nil {
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return err
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}
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if err := ds.docStore.Save(); err != nil {
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return err
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}
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ds.isDirty = false
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ds.lastSaveTime = now
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ds.logger.Info("Document: Force save completed")
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return nil
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}
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// startAutoSave 启动自动保存
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func (ds *DocumentService) startAutoSave() {
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delay := 5 * time.Second // 默认延迟
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if config, err := ds.configService.GetConfig(); err == nil {
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delay = time.Duration(config.Editing.AutoSaveDelay) * time.Millisecond
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}
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ds.scheduleAutoSave(delay)
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}
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// scheduleAutoSave 安排自动保存
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func (ds *DocumentService) scheduleAutoSave(delay time.Duration) {
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if ds.saveTimer != nil {
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ds.saveTimer.Stop()
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}
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ds.saveTimer = time.AfterFunc(delay, func() {
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ds.performAutoSave()
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ds.startAutoSave() // 重新安排
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})
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}
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// performAutoSave 执行自动保存
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func (ds *DocumentService) performAutoSave() {
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ds.mutex.Lock()
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defer ds.mutex.Unlock()
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if !ds.isDirty || ds.document == nil {
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return
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}
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// 检查距离上次保存的时间间隔，避免过于频繁的保存
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now := time.Now()
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if now.Sub(ds.lastSaveTime) < time.Second {
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// 如果距离上次保存不到1秒，跳过此次保存
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// 下一个自动保存周期会重新尝试
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ds.logger.Debug("Document: Skipping auto save due to recent save")
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return
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}
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// 应用待保存的内容
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if ds.pendingContent != "" {
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ds.document.Content = ds.pendingContent
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ds.pendingContent = ""
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}
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ds.document.Meta.LastUpdated = now
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if err := ds.docStore.Set(*ds.document); err != nil {
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ds.logger.Error("Document: Auto save failed", "error", err)
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return
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}
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if err := ds.docStore.Save(); err != nil {
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ds.logger.Error("Document: Auto save failed", "error", err)
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return
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}
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ds.isDirty = false
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ds.lastSaveTime = now
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ds.logger.Debug("Document: Auto save completed")
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}
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// ReloadDocument 重新加载文档
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func (ds *DocumentService) ReloadDocument() error {
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ds.mutex.Lock()
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defer ds.mutex.Unlock()
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// 强制保存当前文档
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if ds.document != nil && ds.isDirty {
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if err := ds.forceSaveInternal(); err != nil {
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ds.logger.Error("Document: Failed to save before reload", "error", err)
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}
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}
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// 重新初始化存储
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if err := ds.initStore(); err != nil {
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return err
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}
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// 重新加载文档
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doc := ds.docStore.Get()
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if doc.Meta.ID == "" {
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// 创建新文档
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ds.document = models.NewDefaultDocument()
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ds.docStore.Set(*ds.document)
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ds.logger.Info("Document: Created new document after reload")
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} else {
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ds.document = &doc
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ds.logger.Info("Document: Loaded existing document after reload")
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}
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// 重置状态
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ds.isDirty = false
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ds.pendingContent = ""
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ds.lastSaveTime = time.Now()
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return nil
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}
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// forceSaveInternal 内部强制保存（不加锁）
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func (ds *DocumentService) forceSaveInternal() error {
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if ds.document == nil {
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return nil
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}
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// 应用待保存的内容
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if ds.pendingContent != "" {
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ds.document.Content = ds.pendingContent
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ds.pendingContent = ""
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}
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now := time.Now()
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ds.document.Meta.LastUpdated = now
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if err := ds.docStore.Set(*ds.document); err != nil {
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return err
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}
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if err := ds.docStore.Save(); err != nil {
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return err
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}
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ds.isDirty = false
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ds.lastSaveTime = now
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return nil
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}
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// ServiceShutdown 关闭服务
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func (ds *DocumentService) ServiceShutdown() error {
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// 停止定时器
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if ds.saveTimer != nil {
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ds.saveTimer.Stop()
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}
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// 最后保存
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if err := ds.ForceSave(); err != nil {
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ds.logger.Error("Document: Failed to save on shutdown", "error", err)
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}
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ds.logger.Info("Document: Service shutdown completed")
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return nil
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}
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// OnDataPathChanged 处理数据路径变更
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func (ds *DocumentService) OnDataPathChanged(oldPath, newPath string) error {
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ds.logger.Info("Document: Data path changed, reloading document",
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"oldPath", oldPath,
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"newPath", newPath)
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// 重新加载文档以使用新的路径
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return ds.ReloadDocument()
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}
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