package e2e

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

func TestDataPlaneConnectivity(t *testing.T) {
	t.Skip("not implemented")
}

func TestNetworkIsolation(t *testing.T) {
	// 1. Determine project root
	cwd, err := os.Getwd()
	if err != nil {
		t.Fatalf("Failed to get cwd: %v", err)
	}
	root := filepath.Join(cwd, "..", "..")

	// 2. Build the project to ensure we have a fresh binary
	buildCmd := exec.Command("bash", "-c", fmt.Sprintf(
		"cd %s && gcc -static -O2 internal/namespace/launcher_src/launcher.c -o internal/namespace/launcher.bin && export CGO_ENABLED=1 && go build -o wg-wrap cmd/wg-wrap/main.go",
		root))
	if err := buildCmd.Run(); err != nil {
		t.Fatalf("Failed to build project for E2E test: %v", err)
	}

	// 3. Run the test-ns command using the binary in the root
	binaryPath := filepath.Join(root, "wg-wrap")
	cmd := exec.Command(binaryPath, "test-ns")
	out, err := cmd.CombinedOutput()
	if err != nil {
		t.Fatalf("wg-wrap test-ns failed: %v\nOutput: %s", err, string(out))
	}

	// 4. Verify the success message
	if !strings.Contains(string(out), "Isolation Verified: OK") {
		t.Errorf("Expected 'Isolation Verified: OK', got: %q", string(out))
	}

	// Cleanup
	_ = os.Remove(binaryPath)
}

func TestDNSLeakage(t *testing.T) {
	t.Skip("not implemented")
}

func TestMTUFragmentation(t *testing.T) {
	t.Skip("not implemented")
}