// +build integration

package virtualmachine

import (
	"context"
	"testing"
	"time"

	"github.com/stretchr/testify/require"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"sigs.k8s.io/controller-runtime/pkg/client"
	"sigs.k8s.io/controller-runtime/pkg/envtest"

	proxmoxv1alpha1 "github.com/sankofa/crossplane-provider-proxmox/apis/v1alpha1"
)

// Integration tests for VM creation scenarios
// These tests require a test environment with Proxmox API access
// Run with: go test -tags=integration ./pkg/controller/virtualmachine/...

func TestVMCreationWithTemplateCloning(t *testing.T) {
	if testing.Short() {
		t.Skip("Skipping integration test")
	}

	// This is a placeholder for integration test
	// In a real scenario, this would:
	// 1. Set up test environment
	// 2. Create a template VM
	// 3. Create a ProxmoxVM with template ID
	// 4. Verify VM is created correctly
	// 5. Clean up

	t.Log("Integration test: VM creation with template cloning")
	t.Skip("Requires Proxmox test environment")
}

func TestVMCreationWithCloudImageImport(t *testing.T) {
	if testing.Short() {
		t.Skip("Skipping integration test")
	}

	t.Log("Integration test: VM creation with cloud image import")
	t.Skip("Requires Proxmox test environment with importdisk API support")
}

func TestVMCreationWithPreImportedImages(t *testing.T) {
	if testing.Short() {
		t.Skip("Skipping integration test")
	}

	t.Log("Integration test: VM creation with pre-imported images")
	t.Skip("Requires Proxmox test environment")
}

func TestVMValidationScenarios(t *testing.T) {
	if testing.Short() {
		t.Skip("Skipping integration test")
	}

	tests := []struct {
		name    string
		vm      *proxmoxv1alpha1.ProxmoxVM
		wantErr bool
	}{
		{
			name: "valid VM spec",
			vm: &proxmoxv1alpha1.ProxmoxVM{
				ObjectMeta: metav1.ObjectMeta{
					Name:      "test-vm-valid",
					Namespace: "default",
				},
				Spec: proxmoxv1alpha1.ProxmoxVMSpec{
					ForProvider: proxmoxv1alpha1.ProxmoxVMParameters{
						Node:    "test-node",
						Name:    "test-vm",
						CPU:     2,
						Memory:  "4Gi",
						Disk:    "50Gi",
						Storage: "local-lvm",
						Network: "vmbr0",
						Image:   "100", // Template ID
						Site:    "test-site",
					},
					ProviderConfigReference: &proxmoxv1alpha1.ProviderConfigReference{
						Name: "test-provider-config",
					},
				},
			},
			wantErr: false,
		},
		{
			name: "invalid VM name",
			vm: &proxmoxv1alpha1.ProxmoxVM{
				ObjectMeta: metav1.ObjectMeta{
					Name:      "test-vm-invalid-name",
					Namespace: "default",
				},
				Spec: proxmoxv1alpha1.ProxmoxVMSpec{
					ForProvider: proxmoxv1alpha1.ProxmoxVMParameters{
						Node:    "test-node",
						Name:    "vm@invalid", // Invalid character
						CPU:     2,
						Memory:  "4Gi",
						Disk:    "50Gi",
						Storage: "local-lvm",
						Network: "vmbr0",
						Image:   "100",
						Site:    "test-site",
					},
					ProviderConfigReference: &proxmoxv1alpha1.ProviderConfigReference{
						Name: "test-provider-config",
					},
				},
			},
			wantErr: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			// This would test validation in a real integration scenario
			// For now, we just verify the test structure
			require.NotNil(t, tt.vm)
			t.Logf("Test case: %s", tt.name)
		})
	}

	t.Skip("Requires Proxmox test environment")
}

func TestMultiSiteVMDeployment(t *testing.T) {
	if testing.Short() {
		t.Skip("Skipping integration test")
	}

	// Test VM creation across different sites
	t.Log("Integration test: Multi-site VM deployment")
	t.Skip("Requires multiple Proxmox sites configured")
}

func TestNetworkBridgeValidation(t *testing.T) {
	if testing.Short() {
		t.Skip("Skipping integration test")
	}

	tests := []struct {
		name         string
		network      string
		expectExists bool
	}{
		{"existing bridge", "vmbr0", true},
		{"non-existent bridge", "vmbr999", false},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			// In real test, would call NetworkExists and verify
			t.Logf("Test network bridge: %s, expect exists: %v", tt.network, tt.expectExists)
		})
	}

	t.Skip("Requires Proxmox test environment")
}

func TestErrorRecoveryScenarios(t *testing.T) {
	if testing.Short() {
		t.Skip("Skipping integration test")
	}

	scenarios := []struct {
		name        string
		errorType   string
		shouldRetry bool
	}{
		{"network error", "NetworkError", true},
		{"authentication error", "AuthenticationError", false},
		{"quota exceeded", "QuotaExceeded", false},
		{"node unhealthy", "NodeUnhealthy", true},
	}

	for _, scenario := range scenarios {
		t.Run(scenario.name, func(t *testing.T) {
			// Test error recovery logic
			t.Logf("Test error scenario: %s, should retry: %v", scenario.name, scenario.shouldRetry)
		})
	}

	t.Skip("Requires Proxmox test environment")
}

func TestCloudInitConfiguration(t *testing.T) {
	if testing.Short() {
		t.Skip("Skipping integration test")
	}

	t.Log("Integration test: Cloud-init configuration")
	t.Skip("Requires Proxmox test environment with cloud-init support")
}

// setupTestEnvironment creates a test Kubernetes environment
// This is a placeholder - in real tests, this would use envtest
func setupTestEnvironment(t *testing.T) (*envtest.Environment, client.Client, func()) {
	t.Helper()
	
	// Placeholder - would set up envtest environment
	// env := &envtest.Environment{}
	// cfg, err := env.Start()
	// require.NoError(t, err)
	
	// client, err := client.New(cfg, client.Options{})
	// require.NoError(t, err)
	
	// cleanup := func() {
	// 	require.NoError(t, env.Stop())
	// }
	
	// return env, client, cleanup
	
	t.Skip("Test environment setup not implemented")
	return nil, nil, func() {}
}