v0.10.0: ports and adapters refactor

- Extract shared manifest types into internal/manifest/types leaf package.
- Extract SQLite adapter into internal/manifest/sqlite.
- Extract JSONL adapter into internal/manifest/jsonl.
- Isolate modernc.org/sqlite import to sqlite/adapter.go.
- Add adapter-backed registry with manifest.Default.
- Adapter-agnostic ConvertManifest in types/.
- MemoryAdapter for in-memory manifest testing.
- CLI uses manifest.Default registry directly.
- SQLite LogWriter type assertion moved into SQLiteAdapter.
- Manifest interface includes Entries(); EntryReader removed.
- No behavior changes. 100% coverage across all 6 packages.

internal/manifest/sqlite/adapter.go

@@ -0,0 +1,21 @@
+package sqlite
+
+import (
+	_ "modernc.org/sqlite"
+
+	"gitea.k3s.k0.nu/tools/photocli/internal/manifest/types"
+)
+
+type Adapter struct{}
+
+func (Adapter) Format() types.Format                    { return types.FormatSQLite }
+func (Adapter) Aliases() []string                       { return []string{"db", "sqlite3"} }
+func (Adapter) Path(dir string) string                  { return Path(dir) }
+func (Adapter) Exists(dir string) bool                  { return FileExists(Path(dir)) }
+func (Adapter) Open(dir string) (types.Manifest, error) { return Load(dir) }
+func (Adapter) OpenLogWriter(m types.Manifest, dir string) (types.LogWriter, error) {
+	if sm, ok := m.(*Store); ok && sm.DB() != nil {
+		return NewLogWriter(sm.DB())
+	}
+	return types.NewFileLogWriter(types.LogPath(dir))
+}

internal/manifest/sqlite/adapter_test.go

@@ -0,0 +1,290 @@
+package sqlite
+
+import (
+	"database/sql"
+	"fmt"
+	"path/filepath"
+	"testing"
+
+	_ "modernc.org/sqlite"
+
+	"gitea.k3s.k0.nu/tools/photocli/internal/manifest/types"
+)
+
+func TestAdapter(t *testing.T) {
+	a := Adapter{}
+	if a.Format() != types.FormatSQLite {
+		t.Fatal("expected SQLite format")
+	}
+	if len(a.Aliases()) != 2 {
+		t.Fatal("expected 2 aliases")
+	}
+	dir := t.TempDir()
+	if a.Path(dir) != Path(dir) {
+		t.Fatal("expected path match")
+	}
+	if a.Exists(dir) {
+		t.Fatal("expected not to exist in empty dir")
+	}
+	m, err := a.Open(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	m.Close()
+	w, err := a.OpenLogWriter(nil, dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	w.Close()
+}
+
+func TestAdapterOpenLogWriterSQLite(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	defer m.Close()
+	w, err := Adapter{}.OpenLogWriter(m, dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer w.Close()
+	if _, ok := w.(*LogWriter); !ok {
+		t.Fatalf("expected sqlite log writer, got %T", w)
+	}
+}
+
+func TestStoreLoadEmpty(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if m == nil {
+		t.Fatal("expected non-nil store")
+	}
+	m.Close()
+}
+
+func TestStoreLoadNonexistent(t *testing.T) {
+	m, err := Load("/nonexistent/path")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if m == nil {
+		t.Fatal("expected non-nil store")
+	}
+	m.Close()
+}
+
+func TestStoreAddHasSaveClose(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Add("sid1", "sfile.jpg", 99, "azure")
+	if !m.Has("sid1") {
+		t.Fatal("expected Has to return true")
+	}
+	if m.Has("nope") {
+		t.Fatal("expected Has to return false")
+	}
+	if err := m.Save(); err != nil {
+		t.Fatal(err)
+	}
+	m.Close()
+}
+
+func TestStoreRoundTrip(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Add("rid1", "rfile1.jpg", 10, "aws")
+	m.Add("rid2", "rfile2.jpg", 20, "gcs")
+	if err := m.Save(); err != nil {
+		t.Fatal(err)
+	}
+	m.Close()
+
+	m2, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m2.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	defer m2.Close()
+	if !m2.Has("rid1") {
+		t.Fatal("expected rid1 after reload")
+	}
+	if !m2.Has("rid2") {
+		t.Fatal("expected rid2 after reload")
+	}
+}
+
+func TestStoreEntries(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	defer m.Close()
+	m.Add("se1", "sf1.jpg", 1, "sc1")
+	m.Add("se2", "sf2.jpg", 2, "sc2")
+	entries := m.Entries()
+	if len(entries) != 2 {
+		t.Fatalf("expected 2 entries, got %d", len(entries))
+	}
+}
+
+func TestStoreCloseIdempotent(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Close()
+	m.Close()
+}
+
+func TestStoreOpenAppendIdempotent(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Close()
+}
+
+func TestStoreManifestFormat(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if m.ManifestFormat() != types.FormatSQLite {
+		t.Fatal("expected SQLite format")
+	}
+}
+
+func TestStoreSave(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.Save(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestStoreOpenAppendCreateDir(t *testing.T) {
+	dir := t.TempDir()
+	subdir := filepath.Join(dir, "subdir")
+	m, err := Load(subdir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Close()
+}
+
+func TestStoreCloseWithoutOpen(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	m.Close()
+}
+
+func TestStoreEntriesWithoutOpen(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	entries := m.Entries()
+	if entries != nil {
+		t.Errorf("Entries without open should return nil, got %v", entries)
+	}
+}
+
+func TestStoreHasWithoutOpen(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if m.Has("x") {
+		t.Fatal("Has should return false without open")
+	}
+}
+
+func TestStoreAddEntryWithoutOpen(t *testing.T) {
+	m, err := Load(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	m.AddEntry(types.Entry{ID: "x", Filename: "f.jpg"})
+}
+
+func TestSetOpener(t *testing.T) {
+	old := SetOpener(func(driverName, dataSourceName string) (*sql.DB, error) {
+		return nil, fmt.Errorf("test")
+	})
+	if old != nil {
+		t.Fatal("expected nil old opener")
+	}
+	restore := SetOpener(old)
+	if restore == nil {
+		t.Fatal("expected non-nil restore")
+	}
+	SetOpener(nil)
+}
+
+func TestFileExists(t *testing.T) {
+	dir := t.TempDir()
+	if FileExists(dir) {
+		t.Fatal("expected false for directory")
+	}
+	if FileExists("/nonexistent/file") {
+		t.Fatal("expected false for nonexistent")
+	}
+}
+
+func TestLogWriterClose(t *testing.T) {
+	w := &LogWriter{}
+	w.Close()
+}
+
+func TestOpenerWithOverride(t *testing.T) {
+	SetOpener(func(driverName, dataSourceName string) (*sql.DB, error) {
+		return nil, nil
+	})
+	if opener() == nil {
+		t.Fatal("expected override")
+	}
+	SetOpener(nil)
+}
+
+func TestLogWriterCloseDirect(t *testing.T) {
+	(&LogWriter{}).Close()
+}

internal/manifest/sqlite/log_writer.go

@@ -0,0 +1,43 @@
+package sqlite
+
+import (
+	"database/sql"
+
+	"gitea.k3s.k0.nu/tools/photocli/internal/manifest/types"
+)
+
+type LogWriter struct {
+	db *sql.DB
+}
+
+func NewLogWriter(db *sql.DB) (types.LogWriter, error) {
+	_, err := db.Exec(`CREATE TABLE IF NOT EXISTS logs (
+		id INTEGER PRIMARY KEY AUTOINCREMENT,
+		ts INTEGER NOT NULL,
+		level TEXT NOT NULL,
+		event TEXT NOT NULL,
+		asset_id TEXT,
+		album TEXT,
+		filename TEXT,
+		size INTEGER,
+		cloud TEXT,
+		duration_ms INTEGER,
+		message TEXT
+	)`)
+	if err != nil {
+		return nil, err
+	}
+	_, _ = db.Exec(`CREATE INDEX IF NOT EXISTS idx_logs_ts ON logs(ts)`)
+	_, _ = db.Exec(`CREATE INDEX IF NOT EXISTS idx_logs_event ON logs(event)`)
+	return &LogWriter{db: db}, nil
+}
+
+func (w *LogWriter) Log(e types.LogEntry) {
+	if w.db == nil {
+		return
+	}
+	w.db.Exec(`INSERT INTO logs (ts, level, event, asset_id, album, filename, size, cloud, duration_ms, message) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+		e.Timestamp, e.Level, e.Event, e.AssetID, e.Album, e.Filename, e.Size, e.Cloud, e.DurationMs, e.Message)
+}
+
+func (w *LogWriter) Close() { _ = w }

internal/manifest/sqlite/store.go

@@ -0,0 +1,165 @@
+package sqlite
+
+import (
+	"database/sql"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"gitea.k3s.k0.nu/tools/photocli/internal/manifest/types"
+)
+
+type OpenerFunc func(driverName, dataSourceName string) (*sql.DB, error)
+
+var openerOverride OpenerFunc
+
+func SetOpener(fn OpenerFunc) (old OpenerFunc) {
+	old = openerOverride
+	openerOverride = fn
+	return old
+}
+
+type Store struct {
+	path     string
+	db       *sql.DB
+	open     OpenerFunc
+	execFunc func(query string, args ...any) (sql.Result, error)
+}
+
+func Path(dir string) string {
+	return filepath.Join(dir, "downloads.db")
+}
+
+func Load(dir string) (*Store, error) {
+	m := &Store{
+		path: Path(dir),
+		open: opener(),
+	}
+	return m, nil
+}
+
+func opener() OpenerFunc {
+	if openerOverride != nil {
+		return openerOverride
+	}
+	return sql.Open
+}
+
+func (m *Store) OpenAppend() error {
+	if m.db != nil {
+		return nil
+	}
+	if err := os.MkdirAll(filepath.Dir(m.path), 0755); err != nil {
+		return err
+	}
+	opener := m.open
+	if opener == nil {
+		opener = sql.Open
+	}
+	db, err := opener("sqlite", m.path)
+	if err != nil {
+		return fmt.Errorf("open sqlite: %w", err)
+	}
+	execFn := m.execFunc
+	if execFn == nil {
+		execFn = db.Exec
+	}
+	_, err = execFn(`CREATE TABLE IF NOT EXISTS downloads (
+		id TEXT PRIMARY KEY,
+		filename TEXT NOT NULL DEFAULT '',
+		path TEXT NOT NULL DEFAULT '',
+		size INTEGER NOT NULL DEFAULT 0,
+		cloud TEXT NOT NULL DEFAULT '',
+		checksum TEXT NOT NULL DEFAULT '',
+		exported INTEGER NOT NULL DEFAULT 0
+	)`)
+	if err != nil {
+		db.Close()
+		return fmt.Errorf("create table: %w", err)
+	}
+	_, _ = execFn(`ALTER TABLE downloads ADD COLUMN path TEXT NOT NULL DEFAULT ''`)
+	_, _ = execFn(`ALTER TABLE downloads ADD COLUMN checksum TEXT NOT NULL DEFAULT ''`)
+	_, err = execFn(`CREATE INDEX IF NOT EXISTS idx_downloads_id ON downloads(id)`)
+	if err != nil {
+		db.Close()
+		return fmt.Errorf("create index: %w", err)
+	}
+	m.db = db
+	return nil
+}
+
+func (m *Store) DB() *sql.DB           { return m.db }
+func (m *Store) SetOpen(fn OpenerFunc) { m.open = fn }
+func (m *Store) SetExecFunc(fn func(query string, args ...any) (sql.Result, error)) {
+	m.execFunc = fn
+}
+
+func (m *Store) Has(id string) bool {
+	if m.db == nil {
+		return false
+	}
+	var count int
+	err := m.db.QueryRow(`SELECT COUNT(*) FROM downloads WHERE id = ?`, id).Scan(&count)
+	if err != nil {
+		return false
+	}
+	return count > 0
+}
+
+func (m *Store) ManifestFormat() types.Format {
+	return types.FormatSQLite
+}
+
+func (m *Store) Add(id string, filename string, size int64, cloud string) {
+	m.AddEntry(types.NewEntry(id, filename, filename, size, cloud))
+}
+
+func (m *Store) AddEntry(entry types.Entry) {
+	if m.db == nil {
+		return
+	}
+	if entry.Path == "" {
+		entry.Path = entry.Filename
+	}
+	m.db.Exec(`INSERT OR REPLACE INTO downloads (id, filename, path, size, cloud, checksum, exported) VALUES (?, ?, ?, ?, ?, ?, ?)`,
+		entry.ID, entry.Filename, entry.Path, entry.Size, entry.Cloud, entry.Checksum, entry.Exported)
+}
+
+func (m *Store) Save() error { return nil }
+
+func (m *Store) Close() {
+	if m.db != nil {
+		m.db.Close()
+		m.db = nil
+	}
+}
+
+func (m *Store) Entries() map[string]types.Entry {
+	if m.db == nil {
+		return nil
+	}
+	out := make(map[string]types.Entry)
+	rows, err := m.db.Query(`SELECT id, filename, path, size, cloud, checksum, exported FROM downloads`)
+	if err != nil {
+		return out
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var e types.Entry
+		if err := rows.Scan(&e.ID, &e.Filename, &e.Path, &e.Size, &e.Cloud, &e.Checksum, &e.Exported); err == nil {
+			if e.Path == "" {
+				e.Path = e.Filename
+			}
+			out[e.ID] = e
+		}
+	}
+	return out
+}
+
+func FileExists(path string) bool {
+	info, err := os.Stat(path)
+	if err != nil {
+		return false
+	}
+	return !info.IsDir()
+}

internal/manifest/sqlite/store_test.go

@@ -0,0 +1,323 @@
+package sqlite
+
+import (
+	"database/sql"
+	"fmt"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	_ "modernc.org/sqlite"
+
+	"gitea.k3s.k0.nu/tools/photocli/internal/manifest/types"
+)
+
+func TestStoreOpenAppendSQLError(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	m.SetOpen(func(driverName, dataSourceName string) (*sql.DB, error) {
+		return nil, fmt.Errorf("simulated open error")
+	})
+	if err := m.OpenAppend(); err == nil {
+		t.Error("expected error from sql.Open failure")
+	}
+}
+
+func TestStoreOpenAppendCreateTableError(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	realOpen := m.open
+	m.SetOpen(func(driverName, dataSourceName string) (*sql.DB, error) {
+		db, err := realOpen(driverName, dataSourceName)
+		if err != nil {
+			return nil, err
+		}
+		db.Close()
+		return db, nil
+	})
+	if err := m.OpenAppend(); err == nil {
+		t.Error("expected error from closed DB CREATE TABLE")
+	}
+}
+
+func TestStoreHasAfterClose(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Add("x1", "photo.jpg", 1024, "local")
+	m.Close()
+	if m.Has("x1") {
+		t.Error("Has should return false after Close")
+	}
+}
+
+func TestStoreEntriesAfterClose(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Add("x1", "photo.jpg", 1024, "local")
+	m.Close()
+	entries := m.Entries()
+	if entries != nil {
+		t.Errorf("Entries should return nil after Close, got %d entries", len(entries))
+	}
+}
+
+func TestStoreOpenAppendMkdirAllError(t *testing.T) {
+	m, err := Load("/proc/cannot-write")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err == nil {
+		t.Error("expected error creating dir under /proc")
+		m.Close()
+	}
+}
+
+func TestStoreOpenAppendNilOpener(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	m.open = nil
+	if err := m.OpenAppend(); err != nil {
+		t.Errorf("expected nil opener to use sql.Open fallback, got err: %v", err)
+	}
+	m.Close()
+}
+
+func TestStoreOpenAppendCreateIndexError(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	realOpen := m.open
+	m.open = func(driverName, dataSourceName string) (*sql.DB, error) {
+		db, err := realOpen(driverName, dataSourceName)
+		if err != nil {
+			return nil, err
+		}
+		db.Close()
+		return db, nil
+	}
+	if err := m.OpenAppend(); err == nil {
+		t.Error("expected error from closed DB")
+	}
+}
+
+func TestStoreHasQueryError(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Add("x1", "photo.jpg", 1024, "local")
+	closedDB := m.DB()
+	closedDB.Close()
+	if m.Has("x1") {
+		t.Error("Has should return false with broken DB connection")
+	}
+}
+
+func TestStoreEntriesQueryError(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Add("x1", "photo.jpg", 1024, "local")
+	closedDB := m.DB()
+	closedDB.Close()
+	entries := m.Entries()
+	if entries == nil {
+		t.Error("Entries should return non-nil map with broken DB connection")
+	}
+	if len(entries) != 0 {
+		t.Errorf("Entries should be empty with broken DB connection, got %d", len(entries))
+	}
+}
+
+func TestStoreHasQueryErrorWithOpenDB(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Add("x1", "photo.jpg", 1024, "local")
+	closedDB := m.DB()
+	closedDB.Close()
+	if m.Has("x1") {
+		t.Error("Has should return false with closed DB")
+	}
+}
+
+func TestStoreEntriesQueryErrorWithOpenDB(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.Add("x1", "photo.jpg", 1024, "local")
+	closedDB := m.DB()
+	closedDB.Close()
+	entries := m.Entries()
+	if entries != nil && len(entries) != 0 {
+		t.Errorf("Entries should be empty with closed DB, got %d", len(entries))
+	}
+}
+
+func TestStoreCreateIndexError(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	realOpen := m.open
+	m.open = func(driverName, dataSourceName string) (*sql.DB, error) {
+		db, err := realOpen(driverName, dataSourceName)
+		if err != nil {
+			return nil, err
+		}
+		m.SetExecFunc(func(query string, args ...any) (sql.Result, error) {
+			if strings.Contains(query, "CREATE INDEX") {
+				return nil, fmt.Errorf("injected CREATE INDEX error")
+			}
+			return db.Exec(query, args...)
+		})
+		return db, nil
+	}
+	if err := m.OpenAppend(); err == nil {
+		t.Error("expected error from CREATE INDEX")
+		m.Close()
+	}
+}
+
+func TestAddEntryDefaultsPath(t *testing.T) {
+	dir := t.TempDir()
+	m, err := Load(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.OpenAppend(); err != nil {
+		t.Fatal(err)
+	}
+	m.AddEntry(types.Entry{ID: "x1", Filename: "file.jpg", Size: 3, Cloud: "local", Checksum: "sha256:def"})
+	if _, err := m.DB().Exec(`UPDATE downloads SET path = '' WHERE id = 'x1'`); err != nil {
+		t.Fatal(err)
+	}
+	sloaded := m.Entries()["x1"]
+	if got := sloaded.Path; got != "file.jpg" {
+		t.Fatalf("sqlite path = %q", got)
+	}
+	if sloaded.Checksum != "sha256:def" {
+		t.Fatalf("sqlite checksum = %q", sloaded.Checksum)
+	}
+	m.Close()
+}
+
+func TestNewLogWriter(t *testing.T) {
+	dir := t.TempDir()
+	dbPath := filepath.Join(dir, "test.db")
+	db, err := sql.Open("sqlite", dbPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	lw, err := NewLogWriter(db)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	lw.Log(types.LogEntry{
+		Timestamp:  1700000000,
+		Level:      "info",
+		Event:      "export_done",
+		AssetID:    "asset-1",
+		Album:      "Favorites",
+		Filename:   "photo.jpg",
+		Size:       1024,
+		Cloud:      "local",
+		DurationMs: 500,
+	})
+	lw.Log(types.LogEntry{
+		Timestamp: 1700000001,
+		Level:     "error",
+		Event:     "export_fail",
+		AssetID:   "asset-2",
+		Filename:  "bad.jpg",
+		Message:   "timeout",
+	})
+	lw.Close()
+
+	var count int
+	err = db.QueryRow(`SELECT COUNT(*) FROM logs`).Scan(&count)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if count != 2 {
+		t.Errorf("expected 2 log entries, got %d", count)
+	}
+
+	var event, level, assetID string
+	err = db.QueryRow(`SELECT event, level, asset_id FROM logs WHERE asset_id = 'asset-1'`).Scan(&event, &level, &assetID)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if event != "export_done" || level != "info" || assetID != "asset-1" {
+		t.Errorf("unexpected row: event=%s level=%s asset_id=%s", event, level, assetID)
+	}
+}
+
+func TestLogWriterNilDB(t *testing.T) {
+	w := &LogWriter{db: nil}
+	w.Log(types.LogEntry{Event: "test"})
+	w.Close()
+}
+
+func TestNewLogWriterError(t *testing.T) {
+	db, err := sql.Open("sqlite", filepath.Join(t.TempDir(), "test.db"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := db.Close(); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := NewLogWriter(db); err == nil {
+		t.Error("expected error for closed db")
+	}
+}
+
+func TestLogWriterCloseConcrete(t *testing.T) {
+	(&LogWriter{}).Close()
+}