Blizzard
159 lines
3.5 KiB
Go
159 lines
3.5 KiB
Go
package project
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import (
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"fmt"
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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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"engimind/internal/models"
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"gorm.io/driver/sqlite"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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)
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// ProjectService manages multi-project lifecycle with isolated SQLite databases.
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type ProjectService struct {
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globalDB *gorm.DB
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projectDB *gorm.DB
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currentID string
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mu sync.Mutex
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baseDir string
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}
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// NewProjectService creates a project service. Call SetGlobalDB before use.
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func NewProjectService() *ProjectService {
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homeDir, _ := os.UserHomeDir()
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return &ProjectService{
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baseDir: filepath.Join(homeDir, ".engimind", "projects"),
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}
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}
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// SetGlobalDB injects the global database reference.
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func (s *ProjectService) SetGlobalDB(db *gorm.DB) {
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s.globalDB = db
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}
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// ListProjects returns all registered projects.
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func (s *ProjectService) ListProjects() ([]models.Project, error) {
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var projects []models.Project
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err := s.globalDB.Order("created_at DESC").Find(&projects).Error
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return projects, err
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}
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// CreateProject creates a new project with its own SQLite database.
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func (s *ProjectService) CreateProject(name string) (*models.Project, error) {
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id := fmt.Sprintf("p-%d", time.Now().UnixMilli())
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projDir := filepath.Join(s.baseDir, id)
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if err := os.MkdirAll(projDir, 0755); err != nil {
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return nil, fmt.Errorf("create project dir: %w", err)
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}
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dbPath := filepath.Join(projDir, "project.db")
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proj := models.Project{
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ID: id,
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Name: name,
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Path: dbPath,
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}
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if err := s.globalDB.Create(&proj).Error; err != nil {
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return nil, err
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}
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// Initialize project DB
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if err := s.openProjectDB(dbPath); err != nil {
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return nil, err
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}
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s.currentID = id
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return &proj, nil
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}
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// SwitchProject closes current project DB and opens a new one.
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func (s *ProjectService) SwitchProject(id string) error {
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s.mu.Lock()
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defer s.mu.Unlock()
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if s.currentID == id && s.projectDB != nil {
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return nil
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}
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// Close current
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s.closeCurrentDB()
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// Find project
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var proj models.Project
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if err := s.globalDB.First(&proj, "id = ?", id).Error; err != nil {
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return fmt.Errorf("project not found: %w", err)
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}
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if err := s.openProjectDB(proj.Path); err != nil {
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return err
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}
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s.currentID = id
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return nil
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}
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// DeleteProject removes the project and its database files.
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func (s *ProjectService) DeleteProject(id string) error {
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s.mu.Lock()
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defer s.mu.Unlock()
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if s.currentID == id {
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s.closeCurrentDB()
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}
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var proj models.Project
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if err := s.globalDB.First(&proj, "id = ?", id).Error; err != nil {
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return err
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}
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// Remove DB files
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projDir := filepath.Dir(proj.Path)
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os.RemoveAll(projDir)
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return s.globalDB.Delete(&proj).Error
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}
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// GetCurrentProjectID returns the active project ID.
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func (s *ProjectService) GetCurrentProjectID() string {
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return s.currentID
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}
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// GetProjectDB returns the current project's database.
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func (s *ProjectService) GetProjectDB() *gorm.DB {
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return s.projectDB
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}
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func (s *ProjectService) openProjectDB(dbPath string) error {
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db, err := gorm.Open(sqlite.Open(dbPath), &gorm.Config{
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Logger: logger.Default.LogMode(logger.Silent),
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})
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if err != nil {
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return fmt.Errorf("open project db: %w", err)
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}
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if err := db.AutoMigrate(
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&models.SourceFile{},
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&models.ChatMessage{},
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&models.TemplateChapter{},
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&models.TextChunk{},
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); err != nil {
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return fmt.Errorf("auto migrate project db: %w", err)
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}
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s.projectDB = db
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return nil
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}
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func (s *ProjectService) closeCurrentDB() {
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if s.projectDB != nil {
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sqlDB, err := s.projectDB.DB()
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if err == nil {
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sqlDB.Close()
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}
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s.projectDB = nil
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s.currentID = ""
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}
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}
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