<?php

namespace App\Jobs\VirtualMachine\Create;

use App\Http\Services\Telegram;
use App\Http\Services\vCenter;
use App\Models\ModuleVmware;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Http;

class AssignIPJob implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public string $vmId;
    public int $moduleVmwareId;
    public string $availableIP;

    /**
     * Create a new job instance.
     */
    public function __construct(string $vmId, int $moduleVmwareId, string $availableIP)
    {
        $this->vmId = $vmId;
        $this->moduleVmwareId = $moduleVmwareId;
        $this->availableIP = $availableIP;
    }

    /**
     * Execute the job.
     */
    public function handle(vCenter $vCenter, Telegram $telegram)
    {
        try {
            Log::info('🔧 Bắt đầu AssignIPJob', [
                'vm_id' => $this->vmId,
                'module_vmware_id' => $this->moduleVmwareId,
                'assigned_ip' => $this->availableIP
            ]);

            // Lấy thông tin ModuleVmware
            $moduleVmware = ModuleVmware::with(['ipAddress.host.datacenter.vCenter'])->find($this->moduleVmwareId);
            
            if (!$moduleVmware || !$moduleVmware->ipAddress) {
                Log::error('❌ Không tìm thấy ModuleVmware hoặc IP address', [
                    'vm_id' => $this->vmId,
                    'module_vmware_id' => $this->moduleVmwareId
                ]);
                
                $telegram->SendErrorMessage([
                    'error' => 'ModuleVmware or IP address not found',
                    'vm_id' => $this->vmId,
                    'module_vmware_id' => $this->moduleVmwareId
                ], 'AssignIPJob - Data Not Found');
                
                return;
            }

            // Login vào vCenter
            $vcenter = $moduleVmware->ipAddress->host->datacenter->vCenter;
            if (!$vCenter->loginServer($vcenter)) {
                Log::error('❌ Không thể login vào vCenter cho AssignIP', [
                    'vm_id' => $this->vmId,
                    'vcenter_host' => $vcenter->host
                ]);
                
                $telegram->SendErrorMessage([
                    'error' => 'Cannot login to vCenter',
                    'vm_id' => $this->vmId,
                    'vcenter_host' => $vcenter->host
                ], 'AssignIPJob - vCenter Login Failed');
                
                return;
            }

            // Kiểm tra OS family và assign IP
            $this->handleIPAssignment($vCenter, $this->vmId, $moduleVmware, $this->availableIP, $telegram);

        } catch (\Throwable $e) {
            Log::error('❌ Lỗi trong AssignIPJob: ' . $e->getMessage(), [
                'vm_id' => $this->vmId,
                'module_vmware_id' => $this->moduleVmwareId,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);

            $telegram->SendErrorMessage([
                'error' => $e->getMessage(),
                'vm_id' => $this->vmId,
                'module_vmware_id' => $this->moduleVmwareId,
                'file' => $e->getFile(),
                'line' => $e->getLine()
            ], 'AssignIPJob - Exception');
        }
    }

    /**
     * Handle IP assignment based on OS family
     */
    private function handleIPAssignment(vCenter $vCenter, string $vmId, ModuleVmware $moduleVmware, string $availableIP, Telegram $telegram): void
    {
        try {
            // Kiểm tra OS family trước khi assign IP
            $osFamily = $this->checkVMOSFamily($vCenter, $vmId);
            
            if ($osFamily === 'WINDOWS') {
                Log::info('✅ Phát hiện Windows VM, bắt đầu assign IP', [
                    'vm_id' => $vmId,
                    'os_family' => $osFamily,
                    'assigned_ip' => $availableIP
                ]);
                
                // Assign IP cho Windows VM
                $assignIPResult = $vCenter->assignIPWindows($moduleVmware, $vmId);
                
                if (is_array($assignIPResult) && !$assignIPResult['error']) {
                    Log::info('✅ Assign IP Windows thành công', [
                        'vm_id' => $vmId,
                        'result' => $assignIPResult['data']
                    ]);
                    
                    $telegram->SendJobRunInfo(
                        'AssignIPWindows',
                        'success',
                        [
                            'vm_id' => $vmId,
                            'assigned_ip' => $availableIP,
                            'result' => $assignIPResult['data']
                        ]
                    );
                } else {
                    Log::warning('⚠️ Assign IP Windows thất bại', [
                        'vm_id' => $vmId,
                        'error' => $assignIPResult['data'] ?? 'Unknown error'
                    ]);
                    
                    $telegram->SendErrorMessage([
                        'error' => 'Assign IP Windows failed',
                        'vm_id' => $vmId,
                        'details' => $assignIPResult['data'] ?? 'Unknown error'
                    ], 'AssignIPWindows - Failed');
                }
            } elseif ($osFamily === 'LINUX' || $osFamily === 'OTHER') {
                Log::info('ℹ️ Phát hiện non-Windows VM, hệ thống đang nâng cấp', [
                    'vm_id' => $vmId,
                    'os_family' => $osFamily
                ]);
                
                $telegram->SendJobRunInfo(
                    'AssignIP',
                    'upgrade',
                    [
                        'vm_id' => $vmId,
                        'os_family' => $osFamily,
                        'message' => 'Hệ thống đang nâng cấp để hỗ trợ IP assignment cho ' . $osFamily
                    ]
                );
            } else {
                Log::warning('⚠️ Không thể xác định OS family', [
                    'vm_id' => $vmId,
                    'os_family' => $osFamily
                ]);
                
                $telegram->SendErrorMessage([
                    'error' => 'Cannot determine OS family',
                    'vm_id' => $vmId,
                    'os_family' => $osFamily
                ], 'AssignIP - Unknown OS');
            }
        } catch (\Exception $e) {
            Log::error('❌ Lỗi khi handle IP assignment: ' . $e->getMessage(), [
                'vm_id' => $vmId,
                'error' => $e->getMessage()
            ]);
            
            $telegram->SendErrorMessage([
                'error' => 'IP Assignment handling failed',
                'vm_id' => $vmId,
                'details' => $e->getMessage()
            ], 'HandleIPAssignment - Exception');
        }
    }

    /**
     * Check VM OS family using vCenter API
     */
    private function checkVMOSFamily(vCenter $vCenter, string $vmId): string
    {
        try {
            // Kiểm tra session còn valid không
            $check = $vCenter->checkApiExits();
            if (!$check) {
                Log::warning('vCenter session expired, cannot check OS family');
                return 'UNKNOWN';
            }
            
            // Gọi API để lấy guest identity
            $response = Http::withoutVerifying()
                ->withHeaders([
                    'vmware-api-session-id' => $vCenter->token
                ])
                ->get("https://{$vCenter->apiUri}/rest/vcenter/vm/{$vmId}/guest/identity");
            
            if ($response->successful()) {
                $data = $response->json();
                
                if (isset($data['value']['family'])) {
                    $family = strtoupper($data['value']['family']);
                    
                    Log::info('✅ Phát hiện OS family', [
                        'vm_id' => $vmId,
                        'family' => $family,
                        'full_name' => $data['value']['full_name'] ?? 'Unknown'
                    ]);
                    
                    return $family;
                } else {
                    Log::warning('⚠️ Không tìm thấy family trong response', [
                        'vm_id' => $vmId,
                        'response' => $data
                    ]);
                    return 'UNKNOWN';
                }
            } else {
                Log::warning('⚠️ API call thất bại khi check OS family', [
                    'vm_id' => $vmId,
                    'status' => $response->status(),
                    'response' => $response->body()
                ]);
                return 'UNKNOWN';
            }
        } catch (\Exception $e) {
            Log::error('❌ Exception khi check OS family: ' . $e->getMessage(), [
                'vm_id' => $vmId,
                'error' => $e->getMessage()
            ]);
            return 'UNKNOWN';
        }
    }
}