feat: SQLite schema migrations, repository interfaces, and concrete SQLite implementations with :memory: table-driven tests (task l9)

1 files changed, 45 insertions, 0 deletions

diff --git a/internal/repository/note.go b/internal/repository/note.go
new file mode 100644
index 0000000..0809e57
--- /dev/null
+++ b/internal/repository/note.go
@@ -0,0 +1,45 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/paul/kiss-media-player/internal/model"
+)
+
+// UpsertNote inserts or replaces a note for a user and media.
+func (s *SQLite) UpsertNote(ctx context.Context, note *model.Note) error {
+	_, err := s.db.ExecContext(ctx,
+		`INSERT INTO media_notes (media_id, user_id, content, created_at, updated_at) VALUES (?, ?, ?, ?, ?)
+		ON CONFLICT(media_id, user_id) DO UPDATE SET content = excluded.content, updated_at = excluded.updated_at`,
+		note.MediaID, note.UserID, note.Content, note.CreatedAt, note.UpdatedAt,
+	)
+	if err != nil {
+		return fmt.Errorf("upsert note: %w", err)
+	}
+	return nil
+}
+
+// GetNote retrieves a note for a user and media.
+func (s *SQLite) GetNote(ctx context.Context, mediaID, userID int64) (*model.Note, error) {
+	row := s.db.QueryRowContext(ctx,
+		`SELECT id, media_id, user_id, content, created_at, updated_at FROM media_notes WHERE media_id = ? AND user_id = ?`,
+		mediaID, userID,
+	)
+	var n model.Note
+	if err := row.Scan(&n.ID, &n.MediaID, &n.UserID, &n.Content, &n.CreatedAt, &n.UpdatedAt); err != nil {
+		return nil, err
+	}
+	return &n, nil
+}
+
+// DeleteNote removes a note for a user and media.
+func (s *SQLite) DeleteNote(ctx context.Context, mediaID, userID int64) error {
+	_, err := s.db.ExecContext(ctx,
+		`DELETE FROM media_notes WHERE media_id = ? AND user_id = ?`, mediaID, userID,
+	)
+	if err != nil {
+		return fmt.Errorf("delete note: %w", err)
+	}
+	return nil
+}