package logstorage

import (
	"bytes"
	"os"
	"path/filepath"
	"testing"
	"time"
)

func TestFactoryResetErasesEveryClassOnDiskAndAfterReopen(t *testing.T) {
	root := t.TempDir()
	s := openTestStore(t, Options{Root: root})
	for _, class := range []string{ClassAudit, ClassSystem, ClassPort, ClassLink} {
		if _, err := s.Append(class, time.Now(), map[string]string{"message": "customer-marker"}); err != nil {
			t.Fatal(err)
		}
	}
	if err := s.FactoryReset(); err != nil {
		t.Fatal(err)
	}
	reopened := openTestStore(t, Options{Root: root})
	for _, class := range []string{ClassAudit, ClassSystem, ClassPort, ClassLink} {
		records, err := reopened.Read(class)
		if err != nil || len(records) != 0 {
			t.Fatalf("%s survived reset: %d %v", class, len(records), err)
		}
	}
	if err := filepath.WalkDir(root, func(path string, entry os.DirEntry, err error) error {
		if err != nil {
			return err
		}
		if entry.IsDir() {
			return nil
		}
		content, err := os.ReadFile(path)
		if err != nil {
			return err
		}
		if bytes.Contains(content, []byte("customer-marker")) {
			t.Fatalf("old payload remains on disk: %s", path)
		}
		return nil
	}); err != nil {
		t.Fatal(err)
	}
	if _, err := reopened.Append(ClassAudit, time.Now(), map[string]string{"message": "new-boot"}); err != nil {
		t.Fatal(err)
	}
}