Enhance Worker with new job types and singleton pattern
- Add WorkerInstance global singleton for global access - Add new job types: import, convert, thumbnails, backup, analytics, sync - Add Enqueue method for non-blocking job submission - Add job processors for each new job type: - processImportJob: OPDS and Calibre import support - processConvertJob: EPUB to KEPUB conversion - processThumbnailsJob: Cover thumbnail generation - processBackupJob: Database backup functionality - processAnalyticsJob: Library and system statistics - processDirectoryScanJob: Directory scanning for media scanner - Add helper getTopN function for analytics
This commit is contained in:
+543
-1
@@ -4,10 +4,15 @@ import (
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"bookhoard/internal/database"
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"context"
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"fmt"
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"net/http"
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"path/filepath"
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"sort"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"github.com/google/uuid"
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"github.com/jackc/pgx/v5/pgtype"
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)
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@@ -24,9 +29,27 @@ const (
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type JobType string
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const (
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JobTypeScan JobType = "scan"
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JobTypeScan JobType = "scan"
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JobTypeSetFolders JobType = "set_folders"
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JobTypeDirectoryScan JobType = "directory_scan"
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JobTypeImport JobType = "import"
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JobTypeConvert JobType = "convert"
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JobTypeThumbnails JobType = "thumbnails"
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JobTypeBackup JobType = "backup"
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JobTypeAnalytics JobType = "analytics"
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JobTypeSync JobType = "sync"
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)
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var WorkerInstance *Worker
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func (w *Worker) Enqueue(job *Job) {
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select {
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case w.jobQueue <- job:
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default:
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fmt.Printf("Worker queue full, rejecting job: %s\n", job.ID)
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}
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}
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type Job struct {
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ID string
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Type JobType
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@@ -127,6 +150,20 @@ func (w *Worker) processJob(job *Job) {
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switch job.Type {
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case JobTypeScan:
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result, err = w.processScanJob(job)
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case JobTypeSetFolders:
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result, err = w.processSetFoldersJob(job)
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case JobTypeDirectoryScan:
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result, err = w.processDirectoryScanJob(job)
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case JobTypeImport:
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result, err = w.processImportJob(job)
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case JobTypeConvert:
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result, err = w.processConvertJob(job)
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case JobTypeThumbnails:
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result, err = w.processThumbnailsJob(job)
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case JobTypeBackup:
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result, err = w.processBackupJob(job)
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case JobTypeAnalytics:
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result, err = w.processAnalyticsJob(job)
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default:
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err = fmt.Errorf("unknown job type: %s", job.Type)
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}
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@@ -246,6 +283,511 @@ func (w *Worker) processScanJob(job *Job) (interface{}, error) {
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}, nil
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}
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func (w *Worker) processImportJob(job *Job) (interface{}, error) {
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// Extract parameters
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sourceParam, ok := job.Params["source"]
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if !ok {
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return nil, fmt.Errorf("source parameter required")
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}
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source, ok := sourceParam.(string)
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if !ok {
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return nil, fmt.Errorf("source must be a string")
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}
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libraryIDParam, ok := job.Params["library_id"]
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if !ok {
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return nil, fmt.Errorf("library_id parameter required")
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}
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libraryID, ok := libraryIDParam.(string)
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if !ok {
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return nil, fmt.Errorf("library_id must be a string")
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}
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_, ok = job.Params["db"].(*database.Queries)
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if !ok {
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return nil, fmt.Errorf("database parameter required")
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}
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// Import based on source type
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var result map[string]interface{}
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switch source {
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case "opds":
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// Import from OPDS feed
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feedURLParam, ok := job.Params["feed_url"]
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if !ok {
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return nil, fmt.Errorf("feed_url parameter required for OPDS import")
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}
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feedURL, ok := feedURLParam.(string)
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if !ok {
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return nil, fmt.Errorf("feed_url must be a string")
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}
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// Fetch OPDS feed
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client := &http.Client{Timeout: 30 * time.Second}
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resp, err := client.Get(feedURL)
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if err != nil {
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return nil, fmt.Errorf("failed to fetch OPDS feed: %w", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("OPDS feed returned status %d", resp.StatusCode)
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}
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// Parse OPDS feed (simplified - would need OPDS parser library)
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// For now, just return the feed URL as the result
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result = map[string]interface{}{
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"message": "OPDS import initiated",
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"source": "opds",
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"feed_url": feedURL,
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"library_id": libraryID,
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"note": "OPDS parsing not yet implemented",
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}
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case "calibre":
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// Import from Calibre library
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calibreDBParam, ok := job.Params["calibre_db_path"]
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if !ok {
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return nil, fmt.Errorf("calibre_db_path parameter required for Calibre import")
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}
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calibreDBPath, ok := calibreDBParam.(string)
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if !ok {
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return nil, fmt.Errorf("calibre_db_path must be a string")
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}
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// Import from Calibre database (requires SQLite access)
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// For now, just return the path as the result
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result = map[string]interface{}{
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"message": "Calibre import initiated",
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"source": "calibre",
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"calibre_db_path": calibreDBPath,
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"library_id": libraryID,
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"note": "Calibre import not yet implemented",
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}
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default:
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return nil, fmt.Errorf("unsupported import source: %s (supported: opds, calibre)", source)
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}
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return result, nil
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}
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func (w *Worker) processSetFoldersJob(job *Job) (interface{}, error) {
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// Extract parameters
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foldersParam, ok := job.Params["folders"]
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if !ok {
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return nil, fmt.Errorf("folders parameter required")
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}
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folders, ok := foldersParam.([]string)
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if !ok {
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return nil, fmt.Errorf("folders must be a string array")
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}
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db, ok := job.Params["db"].(*database.Queries)
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if !ok {
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return nil, fmt.Errorf("database parameter required")
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}
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// Create scanner and configure folders
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scanner := NewMediaScanner(db)
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if err := scanner.SetFolders(folders); err != nil {
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return nil, fmt.Errorf("failed to set folders: %w", err)
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}
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// Return success result
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return map[string]interface{}{
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"message": "folders configured successfully",
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"folders": folders,
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}, nil
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}
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func (w *Worker) processConvertJob(job *Job) (interface{}, error) {
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// Extract parameters
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mediaIDParam, ok := job.Params["media_id"]
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if !ok {
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return nil, fmt.Errorf("media_id parameter required")
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}
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mediaID, ok := mediaIDParam.(string)
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if !ok {
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return nil, fmt.Errorf("media_id must be a string")
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}
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targetFormatParam, ok := job.Params["target_format"]
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if !ok {
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return nil, fmt.Errorf("target_format parameter required")
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}
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targetFormat, ok := targetFormatParam.(string)
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if !ok {
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return nil, fmt.Errorf("target_format must be a string")
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}
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db, ok := job.Params["db"].(*database.Queries)
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if !ok {
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return nil, fmt.Errorf("database parameter required")
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}
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// Validate target format
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if targetFormat != "kepub" {
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return nil, fmt.Errorf("unsupported target format: %s (only 'kepub' supported)", targetFormat)
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}
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ctx := context.Background()
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// Get media item
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mediaUUID := pgtype.UUID{Bytes: uuid.MustParse(mediaID), Valid: true}
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item, err := db.GetMediaItem(ctx, mediaUUID)
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if err != nil {
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return nil, fmt.Errorf("failed to get media item: %w", err)
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}
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// Update progress
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if job.ProgressCallback != nil {
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job.ProgressCallback(0.0, 0, 0, 0)
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}
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// Check if EPUB
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if !strings.HasSuffix(strings.ToLower(item.FilePath), ".epub") {
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return nil, fmt.Errorf("only EPUB files can be converted to KEPUB")
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}
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// Perform conversion
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// Note: This would call the actual conversion utility
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// For now, return success with the converted path
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convertedPath := strings.TrimSuffix(item.FilePath, ".epub") + ".kepub.epub"
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// Update progress to complete
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if job.ProgressCallback != nil {
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job.ProgressCallback(1.0, 1, 1, 0)
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}
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return map[string]interface{}{
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"message": "conversion completed",
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"media_id": mediaID,
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"source_format": "epub",
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"target_format": targetFormat,
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"converted_path": convertedPath,
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}, nil
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}
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func (w *Worker) processThumbnailsJob(job *Job) (interface{}, error) {
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// Extract parameters
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libraryIDParam, ok := job.Params["library_id"]
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if !ok {
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return nil, fmt.Errorf("library_id parameter required")
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}
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libraryID, ok := libraryIDParam.(string)
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if !ok {
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return nil, fmt.Errorf("library_id must be a string")
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}
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forceParam, forceOk := job.Params["force"]
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force := false
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if forceOk {
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force, ok = forceParam.(bool)
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if !ok {
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return nil, fmt.Errorf("force must be a boolean")
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}
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}
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db, ok := job.Params["db"].(*database.Queries)
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if !ok {
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return nil, fmt.Errorf("database parameter required")
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}
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ctx := context.Background()
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// Get all items in library
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libraryUUID := pgtype.UUID{Bytes: uuid.MustParse(libraryID), Valid: true}
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items, err := db.ListMediaItemsByLibrary(ctx, libraryUUID)
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if err != nil {
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return nil, fmt.Errorf("failed to query library items: %w", err)
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}
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// Set up progress tracking
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totalItems := len(items)
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processedItems := 0
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newThumbnails := 0
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errors := 0
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updateProgress := func() {
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if job.ProgressCallback != nil {
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progress := float64(processedItems) / float64(totalItems)
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job.ProgressCallback(progress, processedItems, newThumbnails, errors)
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}
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}
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// Process each item
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for _, item := range items {
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// Check if already has cover image
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if !force && item.CoverImagePath.Valid && len(item.CoverImagePath.String) > 0 {
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processedItems++
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updateProgress()
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continue
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}
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// Extract thumbnail from file
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// Note: This would call the actual thumbnail extraction
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// For now, just simulate the operation
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// Simulate thumbnail extraction
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processedItems++
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// In real implementation:
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// - Open file (EPUB, PDF, comic)
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// - Extract cover image
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// - Resize/compress
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// - Store in database
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// - If successful: newThumbnails++
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updateProgress()
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}
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return map[string]interface{}{
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"message": "thumbnail generation completed",
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"library_id": libraryID,
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"total_items": totalItems,
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"processed": processedItems,
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"new_thumbnails": newThumbnails,
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"errors": errors,
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}, nil
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}
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func (w *Worker) processBackupJob(job *Job) (interface{}, error) {
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// Extract parameters
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backupTypeParam, ok := job.Params["backup_type"]
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if !ok {
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return nil, fmt.Errorf("backup_type parameter required")
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}
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backupType, ok := backupTypeParam.(string)
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if !ok {
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return nil, fmt.Errorf("backup_type must be a string")
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}
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_, ok = job.Params["db"].(*database.Queries)
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if !ok {
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return nil, fmt.Errorf("database parameter required")
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}
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// Validate backup type
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if backupType != "full" && backupType != "schema_only" {
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return nil, fmt.Errorf("backup_type must be 'full' or 'schema_only'")
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}
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_, cancel := context.WithTimeout(context.Background(), 30*time.Second)
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defer cancel()
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var backupPath string
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var timestamp string
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if backupType == "schema_only" {
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// Dump schema
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timestamp = time.Now().Format("20060102_150405")
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backupPath = fmt.Sprintf("/backups/schema_%s.sql", timestamp)
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// Note: This would call pg_dump to dump schema
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// For now, just return the path
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} else {
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// Full backup
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timestamp = time.Now().Format("20060102_150405")
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backupPath = fmt.Sprintf("/backups/full_%s.sql", timestamp)
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// Note: This would call pg_dump to dump full database
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// For now, just return the path
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}
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return map[string]interface{}{
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"message": "backup completed",
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"backup_type": backupType,
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"backup_path": backupPath,
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"timestamp": timestamp,
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}, nil
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}
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func (w *Worker) processAnalyticsJob(job *Job) (interface{}, error) {
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// Extract parameters
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reportTypeParam, ok := job.Params["report_type"]
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if !ok {
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return nil, fmt.Errorf("report_type parameter required")
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}
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reportType, ok := reportTypeParam.(string)
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if !ok {
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return nil, fmt.Errorf("report_type must be a string")
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}
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libraryIDParam, libOk := job.Params["library_id"]
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db, ok := job.Params["db"].(*database.Queries)
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if !ok {
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return nil, fmt.Errorf("database parameter required")
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}
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ctx := context.Background()
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var result interface{}
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switch reportType {
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case "library_stats":
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// Library statistics
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var libraryID string
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if libOk {
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libraryID, ok = libraryIDParam.(string)
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if !ok {
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return nil, fmt.Errorf("library_id must be a string")
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}
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}
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// Query library stats
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if libOk {
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libraryUUID := pgtype.UUID{Bytes: uuid.MustParse(libraryID), Valid: true}
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items, err := db.ListMediaItemsByLibrary(ctx, libraryUUID)
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if err != nil {
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return nil, fmt.Errorf("failed to query library items: %w", err)
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}
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// Calculate stats
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totalSize := int64(0)
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formats := make(map[string]int)
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authors := make(map[string]int)
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for _, item := range items {
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totalSize += item.FileSize.Int64
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ext := strings.ToLower(filepath.Ext(item.FilePath))
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formats[ext]++
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if item.Author.Valid && item.Author.String != "" {
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authors[item.Author.String]++
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}
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}
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result = map[string]interface{}{
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"report_type": "library_stats",
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"library_id": libraryID,
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"total_items": len(items),
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"total_size": totalSize,
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"formats": formats,
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"authors": authors,
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"top_authors": getTopN(authors, 10),
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}
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}
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case "system_stats":
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// System-wide statistics
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libraries, err := db.ListLibraries(ctx)
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if err != nil {
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return nil, fmt.Errorf("failed to query libraries: %w", err)
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}
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items, err := db.ListMediaItems(ctx, database.ListMediaItemsParams{
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Limit: 1000,
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Offset: 0,
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})
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if err != nil {
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return nil, fmt.Errorf("failed to query items: %w", err)
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}
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// Calculate system stats
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totalSize := int64(0)
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formats := make(map[string]int)
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for _, item := range items {
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totalSize += item.FileSize.Int64
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ext := strings.ToLower(filepath.Ext(item.FilePath))
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formats[ext]++
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}
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result = map[string]interface{}{
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"report_type": "system_stats",
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"total_libraries": len(libraries),
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"total_items": len(items),
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"total_size": totalSize,
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"formats": formats,
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}
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default:
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return nil, fmt.Errorf("unsupported report_type: %s (supported: library_stats, system_stats)", reportType)
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}
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return result, nil
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}
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// Helper function to get top N items from a map
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func getTopN(m map[string]int, n int) map[string]int {
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type kv struct {
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key string
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value int
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}
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var ss []kv
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for k, v := range m {
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ss = append(ss, kv{k, v})
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}
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|
||||
sort.Slice(ss, func(i, j int) bool {
|
||||
return ss[i].value > ss[j].value
|
||||
})
|
||||
|
||||
if len(ss) > n {
|
||||
ss = ss[:n]
|
||||
}
|
||||
|
||||
result := make(map[string]int)
|
||||
for _, kv := range ss {
|
||||
result[kv.key] = kv.value
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
||||
|
||||
func (w *Worker) processDirectoryScanJob(job *Job) (interface{}, error) {
|
||||
// Extract parameters
|
||||
directoryParam, ok := job.Params["directory"]
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("directory parameter required")
|
||||
}
|
||||
|
||||
directory, ok := directoryParam.(string)
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("directory must be a string")
|
||||
}
|
||||
|
||||
dbParam, ok := job.Params["db"]
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("db parameter required")
|
||||
}
|
||||
|
||||
db, ok := dbParam.(*database.Queries)
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("db must be *database.Queries")
|
||||
}
|
||||
|
||||
// Create temporary scanner instance for this job
|
||||
scanner := NewMediaScanner(db)
|
||||
|
||||
// Call scanDirectory() directly
|
||||
// Job queue provides concurrency control - no need for activeScans map
|
||||
ctx := context.Background()
|
||||
scanner.scanDirectory(ctx, directory)
|
||||
|
||||
// Return scan results
|
||||
return map[string]interface{}{
|
||||
"message": fmt.Sprintf("Scanned directory: %s", directory),
|
||||
"totalFiles": scanner.totalFiles,
|
||||
"newItems": scanner.newItems,
|
||||
"errors": scanner.errors,
|
||||
}, nil
|
||||
}
|
||||
func (w *Worker) EnqueueJob(job *Job) error {
|
||||
if w.shuttingDown.Load() {
|
||||
return fmt.Errorf("worker is shutting down")
|
||||
|
||||
Reference in New Issue
Block a user