package sessionimport

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

// Real protocol-number session file lives at D:\spider\tgs\13252753163\13252753163.session
// Test skips when that file is missing so CI environments don't break.
func TestConvertPyrogramSession_RealFile(t *testing.T) {
	path := `D:\spider\tgs\13252753163\13252753163.session`
	if _, err := os.Stat(path); err != nil {
		t.Skipf("real session file absent: %v", err)
	}

	data, err := ConvertPyrogramSession(path)
	if err != nil {
		t.Fatalf("convert failed: %v", err)
	}
	if data.DC < 1 || data.DC > 5 {
		t.Errorf("unexpected dc: %d", data.DC)
	}
	if len(data.AuthKey) != 256 {
		t.Errorf("auth_key length = %d, want 256", len(data.AuthKey))
	}
	if len(data.AuthKeyID) != 8 {
		t.Errorf("auth_key_id length = %d, want 8", len(data.AuthKeyID))
	}
	if data.Addr == "" {
		t.Error("addr empty")
	}
}

func TestConvertPyrogramSession_MissingFile(t *testing.T) {
	missing := filepath.Join(t.TempDir(), "does-not-exist.session")
	if _, err := ConvertPyrogramSession(missing); err == nil {
		t.Error("expected error for missing file")
	}
}