feat: add list command with global filters

tests/integration/list_recursive_test.go

@@ -0,0 +1,103 @@
+package integration
+
+import (
+	"context"
+	"io"
+	"os"
+	"path/filepath"
+	"sort"
+	"testing"
+
+	"github.com/rogeecn/renamer/internal/listing"
+	"github.com/rogeecn/renamer/internal/output"
+)
+
+type captureFormatter struct {
+	paths []string
+}
+
+func (f *captureFormatter) Begin(io.Writer) error { return nil }
+
+func (f *captureFormatter) WriteEntry(_ io.Writer, entry output.Entry) error {
+	f.paths = append(f.paths, entry.Path)
+	return nil
+}
+
+func (f *captureFormatter) WriteSummary(io.Writer, output.Summary) error { return nil }
+
+func TestListServiceRecursiveTraversal(t *testing.T) {
+	tmp := t.TempDir()
+
+	mustWriteFile(t, filepath.Join(tmp, "root.txt"))
+	mustWriteFile(t, filepath.Join(tmp, "nested", "child.txt"))
+	mustWriteDir(t, filepath.Join(tmp, "nested", "inner"))
+
+	svc := listing.NewService()
+	req := &listing.ListingRequest{
+		WorkingDir: tmp,
+		Recursive:  true,
+		Format:     listing.FormatPlain,
+	}
+
+	formatter := &captureFormatter{}
+	summary, err := svc.List(context.Background(), req, formatter, io.Discard)
+	if err != nil {
+		t.Fatalf("List returned error: %v", err)
+	}
+
+	sort.Strings(formatter.paths)
+	expected := []string{"nested/child.txt", "root.txt"}
+	if len(formatter.paths) != len(expected) {
+		t.Fatalf("expected %d paths, got %d (%v)", len(expected), len(formatter.paths), formatter.paths)
+	}
+	for i, path := range expected {
+		if formatter.paths[i] != path {
+			t.Fatalf("expected path %q at index %d, got %q", path, i, formatter.paths[i])
+		}
+	}
+
+	if summary.Total() != len(expected) {
+		t.Fatalf("unexpected summary total: %d", summary.Total())
+	}
+}
+
+func TestListServiceDirectoryOnlyMode(t *testing.T) {
+	tmp := t.TempDir()
+
+	mustWriteFile(t, filepath.Join(tmp, "file.txt"))
+	mustWriteDir(t, filepath.Join(tmp, "folder"))
+
+	svc := listing.NewService()
+	req := &listing.ListingRequest{
+		WorkingDir:         tmp,
+		IncludeDirectories: true,
+		Format:             listing.FormatPlain,
+	}
+
+	formatter := &captureFormatter{}
+	_, err := svc.List(context.Background(), req, formatter, io.Discard)
+	if err != nil {
+		t.Fatalf("List returned error: %v", err)
+	}
+
+	if len(formatter.paths) != 1 || formatter.paths[0] != "folder" {
+		t.Fatalf("expected only directory entry, got %v", formatter.paths)
+	}
+}
+
+func mustWriteFile(t *testing.T, path string) {
+	t.Helper()
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		t.Fatalf("mkdir %s: %v", path, err)
+	}
+	if err := os.WriteFile(path, []byte("data"), 0o644); err != nil {
+		t.Fatalf("write file %s: %v", path, err)
+	}
+}
+
+func mustWriteDir(t *testing.T, path string) {
+	t.Helper()
+	if err := os.MkdirAll(path, 0o755); err != nil {
+		t.Fatalf("mkdir dir %s: %v", path, err)
+	}
+}