// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.

package fs

import (
	"github.com/stretchr/testify/assert"
	"testing"
	"os"
	"log/slog"
	"decl/internal/tempdir"
_	"path/filepath"
)

var TempDir tempdir.Path = "testfswalkdir"

func TestMain(m *testing.M) {
	err := TempDir.Create()
	if err != nil || TempDir == "" {
		slog.Error("Failed creating temp dir", "error", err)
	}
	
	rc := m.Run()

	TempDir.Remove()
	os.Exit(rc)
}

func TestNewWalkDir(t *testing.T) {
	expected := []string { "bar", "foo.txt" }
	assert.Nil(t, TempDir.CreateFile("foo.txt", "testdata"))
	assert.Nil(t, TempDir.Mkdir("bar", 0700))

	fileSystem := TempDir.DirFS()
	i := 0
	d := NewWalkDir(fileSystem, string(TempDir), func(fsys FS, path string, entry DirEntry) (err error) {
		slog.Info("TestWalkDir()", "path", path, "entry", entry)
		assert.Equal(t, expected[i], entry.Name())
		i++
		return nil
	})
	assert.NotNil(t, d)
	assert.Nil(t, d.Walk(nil))
}

func TestWalk(t *testing.T) {
}