possibly first working draft

internal/scanner/scanner.go

@@ -7,6 +7,7 @@ import (
 	"path/filepath"
 	"strings"
 	"time"
+	// "donniemarko/internal/note"
 )
 
 type ChangeType int
@@ -32,13 +33,21 @@ type Change struct {
 
 type ScannerService struct {
 	RootDir    string
-	interval   time.Duration
-	lastStates map[string]time.Time
+	Interval   time.Duration
+	LastStates map[string]time.Time
 	handler    ChangeHandler
 }
 
 func NewScanner(path string) *ScannerService {
-	return &ScannerService{RootDir: path}
+	return &ScannerService{
+		RootDir:    path,
+		Interval:   5 * time.Second,
+		LastStates: make(map[string]time.Time),
+	}
+}
+
+func (s *ScannerService) SetHandler(handler ChangeHandler) {
+	s.handler = handler
 }
 
 func (s *ScannerService) FindAll() ([]string, error) {
@@ -63,6 +72,8 @@ func (s *ScannerService) FindAll() ([]string, error) {
 	return notePath, err
 }
 
+// Scan walks the root folder and update the states of each notes if
+// it has changed since the last time a scan occured
 func (s *ScannerService) Scan() ([]Change, error) {
 	var changes []Change
 	currentStates := make(map[string]time.Time)
@@ -81,8 +92,10 @@ func (s *ScannerService) Scan() ([]Change, error) {
 
 		currentStates[path] = info.ModTime()
 
-		lastMod, existed := s.lastStates[path]
+		lastMod, existed := s.LastStates[path]
 		if !existed {
+			// create the note if it didn't exist yet
+			s.handler.HandleCreate(path)
 			changes = append(changes, Change{Type: Created, Path: path, ModTime: lastMod})
 		} else if info.ModTime().After(lastMod) {
 			changes = append(changes, Change{Type: Modified, Path: path, ModTime: info.ModTime()})
@@ -92,18 +105,20 @@ func (s *ScannerService) Scan() ([]Change, error) {
 	})
 
 	// Check for deletions
-	for path := range s.lastStates {
+	for path := range s.LastStates {
 		if _, exists := currentStates[path]; !exists {
 			changes = append(changes, Change{Type: Deleted, Path: path})
 		}
 	}
 
-	s.lastStates = currentStates
+	s.LastStates = currentStates
 	return changes, nil
 }
 
+// Monitor rescan the root folder at each new tick and handle state
+// modification
 func (s *ScannerService) Monitor(ctx context.Context) error {
-	ticker := time.NewTicker(s.interval)
+	ticker := time.NewTicker(s.Interval)
 	defer ticker.Stop()
 
 	for {