package app

import (
	"os"
	"path/filepath"
	"strings"
	"testing"
)

func TestListProjectFilesSkipsGitAndStopsAtTheLimit(t *testing.T) {
	root := t.TempDir()
	for _, name := range []string{"main.go", "app/menus.go", ".git/HEAD", ".turbo-x/settings.toml", "docs/en/README.md"} {
		path := filepath.Join(root, filepath.FromSlash(name))
		if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
			t.Fatal(err)
		}
		if err := os.WriteFile(path, []byte("x"), 0o644); err != nil {
			t.Fatal(err)
		}
	}

	files := listProjectFiles(root, 100)
	var names []string
	for _, file := range files {
		names = append(names, file.Name)
		if !filepath.IsAbs(file.Path) || !strings.HasPrefix(file.Path, root) {
			t.Errorf("Path %q is not absolute under the project", file.Path)
		}
	}

	want := ".turbo-x/settings.toml app/menus.go docs/en/README.md main.go"
	if got := strings.Join(names, " "); got != want {
		t.Errorf("listProjectFiles = %q, want %q: the editor's own directory in, .git out, slashes forward", got, want)
	}

	if got := listProjectFiles(root, 2); len(got) != 2 {
		t.Errorf("a limit of 2 returned %d files", len(got))
	}
}