<?php

namespace App\Http\Controllers\Api\Service;

use App\Http\Controllers\Api\Service\Concerns\ResolvesVm;
use App\Http\Controllers\Controller;
use App\Http\Services\vCenter;
use App\Models\ModuleVmware;
use App\Services\ActivityLogger;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Cache;
use App\Http\Controllers\Api\Service\Concerns\ManagesVmPower;
use App\Http\Controllers\Api\Service\Concerns\ManagesVmNetwork;
use App\Http\Controllers\Api\Service\Concerns\ManagesVmAccess;

class VmController extends Controller
{
    use ResolvesVm;
    use ManagesVmPower;
    use ManagesVmNetwork;
    use ManagesVmAccess;

    public function __construct(protected ActivityLogger $activityLogger) {}
    // -------------------------------------------------------------------------
    // Power ON
    // -------------------------------------------------------------------------

    // -------------------------------------------------------------------------
    // Power OFF
    // -------------------------------------------------------------------------

    // -------------------------------------------------------------------------
    // Change IP
    // -------------------------------------------------------------------------

    // -------------------------------------------------------------------------
    // Change Port (RDP)
    // -------------------------------------------------------------------------

    // -------------------------------------------------------------------------
    // Console Ticket
    // -------------------------------------------------------------------------

    // -------------------------------------------------------------------------
    // Restart VM
    // -------------------------------------------------------------------------

    // -------------------------------------------------------------------------
    // Change Password
    // -------------------------------------------------------------------------

    // -------------------------------------------------------------------------
    // Power State
    // -------------------------------------------------------------------------

    // -------------------------------------------------------------------------
    // Shared helpers
    // -------------------------------------------------------------------------

    /** Try to acquire a per-VM operation lock. Returns null if already locked. */
    private function acquireVmLock(ModuleVmware $vm, int $ttl = 60): ?\Illuminate\Contracts\Cache\Lock
    {
        $lock = Cache::lock("vm_op:{$vm->id}", $ttl);
        return $lock->get() ? $lock : null;
    }

    private function vmLocked(): JsonResponse
    {
        return response()->json([
            'success' => false,
            'message' => 'VM đang có thao tác đang xử lý, vui lòng chờ rồi thử lại.',
        ], 429);
    }

    /**
     * Normalise the array|string return value from Power ON/OFF actions.
     */
    private function vmResponse(array|string $result, string $successMessage): JsonResponse
    {
        if ($result === 'Login_Again') {
            return response()->json([
                'success' => false,
                'message' => 'Không thể đăng nhập vào vCenter.',
            ], 400);
        }

        if (is_string($result)) {
            return response()->json(['success' => false, 'message' => $result], 400);
        }

        if ($result['error'] ?? true) {
            return response()->json([
                'success' => false,
                'message' => $result['data'] ?? 'Thao tác thất bại.',
                'data'    => $result,
            ], 400);
        }

        return response()->json([
            'success' => true,
            'message' => $successMessage,
            'data'    => $result['data'] ?? 'success',
        ]);
    }
}