Add folder rename detection (#3817)

pkg/sqlite/file.go

@@ -5,8 +5,10 @@ import (
 	"database/sql"
 	"errors"
 	"fmt"
+	"io/fs"
 	"path/filepath"
 	"strings"
+	"time"
 
 	"github.com/doug-martin/goqu/v9"
 	"github.com/doug-martin/goqu/v9/exp"
@@ -713,6 +715,31 @@ func (qb *FileStore) FindByZipFileID(ctx context.Context, zipFileID file.ID) ([]
 	return qb.getMany(ctx, q)
 }
 
+// FindByFileInfo finds files that match the base name, size, and mod time of the given file.
+func (qb *FileStore) FindByFileInfo(ctx context.Context, info fs.FileInfo, size int64) ([]file.File, error) {
+	table := qb.table()
+
+	modTime := info.ModTime().Format(time.RFC3339)
+
+	q := qb.selectDataset().Prepared(true).Where(
+		table.Col("basename").Eq(info.Name()),
+		table.Col("size").Eq(size),
+		table.Col("mod_time").Eq(modTime),
+	)
+
+	return qb.getMany(ctx, q)
+}
+
+func (qb *FileStore) CountByFolderID(ctx context.Context, folderID file.FolderID) (int, error) {
+	table := qb.table()
+
+	q := qb.countDataset().Prepared(true).Where(
+		table.Col("parent_folder_id").Eq(folderID),
+	)
+
+	return count(ctx, q)
+}
+
 func (qb *FileStore) IsPrimary(ctx context.Context, fileID file.ID) (bool, error) {
 	joinTables := []exp.IdentifierExpression{
 		scenesFilesJoinTable,