refactor: Exported CSV and JSON files now list time entries in chronological order

internal/export/csv.go

@@ -4,6 +4,7 @@ import (
 	"encoding/csv"
 	"fmt"
 	"os"
+	"slices"
 	"time"
 
 	"github.com/DylanDevelops/tmpo/internal/settings"
@@ -27,7 +28,7 @@ func ToCSV(entries []*storage.TimeEntry, filename string, inUtc bool) error {
 		return fmt.Errorf("failed to write header: %w", err)
 	}
 
-	for _, entry := range entries {
+	for _, entry := range slices.Backward(entries) {
 		endTime := ""
 		if entry.EndTime != nil {
 			endTime = toCorrectCsvTimestamp(*entry.EndTime, inUtc)

internal/export/export_test.go

@@ -59,13 +59,20 @@ func TestToCSV(t *testing.T) {
 		// Verify header
 		assert.Equal(t, []string{"Project", "Start Time", "End Time", "Duration (hours)", "Description", "Milestone"}, records[0])
 
-		// Verify first entry
-		assert.Equal(t, "test-project", records[1][0])
+		// Verify entries are in chronological order
+		assert.Equal(t, "another-project", records[1][0])
 		assert.Equal(t, "2024-01-01 09:00:00", records[1][1])
 		assert.Equal(t, "2024-01-01 17:00:00", records[1][2])
-		assert.Equal(t, "8.00", records[1][3]) // 8 hours
-		assert.Equal(t, "Test work", records[1][4])
-		assert.Equal(t, "", records[1][5]) // No milestone
+		assert.Equal(t, "8.00", records[1][3])
+		assert.Equal(t, "More work", records[1][4])
+		assert.Equal(t, "", records[1][5])
+
+		assert.Equal(t, "test-project", records[2][0])
+		assert.Equal(t, "2024-01-01 09:00:00", records[2][1])
+		assert.Equal(t, "2024-01-01 17:00:00", records[2][2])
+		assert.Equal(t, "8.00", records[2][3])
+		assert.Equal(t, "Test work", records[2][4])
+		assert.Equal(t, "", records[2][5])
 	})
 
 	t.Run("handles running entries", func(t *testing.T) {
@@ -195,12 +202,18 @@ func TestToJson(t *testing.T) {
 		// Should have 2 entries
 		assert.Len(t, exportedEntries, 2)
 
-		// Verify first entry
-		assert.Equal(t, "test-project", exportedEntries[0].Project)
+		// Verify entries are in chronological order
+		assert.Equal(t, "another-project", exportedEntries[0].Project)
 		assert.Equal(t, "2024-01-01T09:00:00Z", exportedEntries[0].StartTime)
 		assert.Equal(t, "2024-01-01T17:00:00Z", exportedEntries[0].EndTime)
 		assert.Equal(t, 8.0, exportedEntries[0].Duration)
-		assert.Equal(t, "Test work", exportedEntries[0].Description)
+		assert.Equal(t, "More work", exportedEntries[0].Description)
+
+		assert.Equal(t, "test-project", exportedEntries[1].Project)
+		assert.Equal(t, "2024-01-01T09:00:00Z", exportedEntries[1].StartTime)
+		assert.Equal(t, "2024-01-01T17:00:00Z", exportedEntries[1].EndTime)
+		assert.Equal(t, 8.0, exportedEntries[1].Duration)
+		assert.Equal(t, "Test work", exportedEntries[1].Description)
 	})
 
 	t.Run("handles running entries", func(t *testing.T) {

internal/export/json.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"os"
+	"slices"
 	"time"
 
 	"github.com/DylanDevelops/tmpo/internal/settings"
@@ -22,7 +23,7 @@ type ExportEntry struct {
 func ToJson(entries []*storage.TimeEntry, filename string, inUtc bool) error {
 	var exportEntries []ExportEntry
 
-	for _, entry := range entries {
+	for _, entry := range slices.Backward(entries) {
 		export := ExportEntry{
 			Project:     entry.ProjectName,
 			StartTime:   toCorrectJsonTimestamp(entry.StartTime, inUtc),