<?php

namespace App\Http\Controllers\Api\Admin\VPS;

use App\Http\Controllers\Controller;
use App\Http\Services\vCenter;
use App\Repositories\Module\Vmware\VmwareRepositoryInterface;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class VPSController extends Controller
{
    public function __construct(
        private readonly VmwareRepositoryInterface $vmwareRepository,
        private readonly vCenter $vCenterService
    ) {}

    public function index(Request $request): JsonResponse
    {
        $vpsList = $this->vmwareRepository->filter(
            $request->all(),
            ['ipaddress.host.datacenter.vCenter', 'os.osGroup', 'order']
        );

        return response()->json([
            'error' => false,
            'data' => $vpsList
        ]);
    }

    public function show(int $id): JsonResponse
    {
        $vps = $this->vmwareRepository->findWithRelationships(
            $id,
            ['ipaddress.host.datacenter.vCenter', 'os.osGroup', 'order']
        );

        if (!$vps) {
            return response()->json([
                'error' => true,
                'message' => "Can't find VPS by ID #" . $id
            ], 404);
        }

        return response()->json([
            'error' => false,
            'data' => $vps
        ]);
    }

    public function update(Request $request, int $id): JsonResponse
    {
        $vps = $this->vmwareRepository->find($id);

        if (!$vps) {
            return response()->json([
                'error' => true,
                'message' => "Can't find VPS by ID #" . $id
            ], 404);
        }

        try {
            DB::beginTransaction();
            $this->vmwareRepository->update($id, $request->all());
            DB::commit();

            return response()->json([
                'error' => false,
                'message' => 'VPS updated successfully',
                'data' => $this->vmwareRepository->find($id)
            ]);
        } catch (\Exception $e) {
            DB::rollBack();
            return response()->json([
                'error' => true,
                'message' => $e->getMessage()
            ], 500);
        }
    }

    public function powerOn(int $id): JsonResponse
    {
        $vps = $this->vmwareRepository->findWithRelationships(
            $id,
            ['vCenter', 'ipaddress.host.datacenter.vCenter']
        );

        if (!$vps) {
            return response()->json([
                'error' => true,
                'message' => "Can't find VPS by ID #" . $id
            ], 404);
        }

        $vcenter = $vps->vCenter ?? $vps->ipaddress?->host?->datacenter?->vCenter;
        
        if (!$vcenter || !$this->vCenterService->loginServer($vcenter)) {
            return response()->json([
                'error' => true,
                'message' => "Can't connect to vCenter"
            ], 400);
        }

        $result = $this->vCenterService->StartVirtualMachine($vps, $vps->vmware_id);

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

        if ($result['error'] ?? true) {
            return response()->json([
                'error' => true,
                'message' => $result['data'] ?? 'Failed to power on VM'
            ], 400);
        }

        return response()->json([
            'error' => false,
            'message' => 'VM powered on successfully'
        ]);
    }

    public function powerOff(int $id): JsonResponse
    {
        $vps = $this->vmwareRepository->findWithRelationships(
            $id,
            ['vCenter', 'ipaddress.host.datacenter.vCenter']
        );

        if (!$vps) {
            return response()->json([
                'error' => true,
                'message' => "Can't find VPS by ID #" . $id
            ], 404);
        }

        $vcenter = $vps->vCenter ?? $vps->ipaddress?->host?->datacenter?->vCenter;
        
        if (!$vcenter || !$this->vCenterService->loginServer($vcenter)) {
            return response()->json([
                'error' => true,
                'message' => "Can't connect to vCenter"
            ], 400);
        }

        $result = $this->vCenterService->ShutdownGuestVirtualMachine($vps, $vps->vmware_id);

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

        if ($result['error'] ?? true) {
            return response()->json([
                'error' => true,
                'message' => $result['data'] ?? 'Failed to power off VM'
            ], 400);
        }

        return response()->json([
            'error' => false,
            'message' => 'VM powered off successfully'
        ]);
    }

    public function restart(int $id): JsonResponse
    {
        $vps = $this->vmwareRepository->findWithRelationships(
            $id,
            ['vCenter', 'ipaddress.host.datacenter.vCenter']
        );

        if (!$vps) {
            return response()->json([
                'error' => true,
                'message' => "Can't find VPS by ID #" . $id
            ], 404);
        }

        $vcenter = $vps->vCenter ?? $vps->ipaddress?->host?->datacenter?->vCenter;
        
        if (!$vcenter || !$this->vCenterService->loginServer($vcenter)) {
            return response()->json([
                'error' => true,
                'message' => "Can't connect to vCenter"
            ], 400);
        }

        $result = $this->vCenterService->restartVM($vps, $vps->vmware_id);

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

        if ($result['error']) {
            return response()->json([
                'error' => true,
                'message' => $result['message'] ?? 'Failed to restart VM'
            ], 400);
        }

        return response()->json([
            'error' => false,
            'message' => 'VM restart command sent successfully'
        ]);
    }

    public function getConsoleTicket(int $id): JsonResponse
    {
        $vps = $this->vmwareRepository->findWithRelationships(
            $id,
            ['ipaddress.host.datacenter.vCenter', 'vCenter']
        );

        if (!$vps) {
            return response()->json([
                'error' => true,
                'message' => "Can't find VPS by ID #" . $id
            ], 404);
        }

        $vcenter = $vps->vCenter ?? $vps->ipaddress?->host?->datacenter?->vCenter;

        if (!$vcenter) {
            return response()->json([
                'error' => true,
                'message' => "Can't find vCenter information"
            ], 404);
        }

        if (!$this->vCenterService->loginServer($vcenter)) {
            return response()->json([
                'error' => true,
                'message' => "Can't connect to vCenter"
            ], 400);
        }

        $ticket = $this->vCenterService->GetConsoleTickets($vps->vmware_id);

        if ($ticket === 'Login_Again') {
            if ($this->vCenterService->loginServer($vcenter)) {
                $ticket = $this->vCenterService->GetConsoleTickets($vps->vmware_id);
            } else {
                return response()->json([
                    'error' => true,
                    'message' => "Can't reconnect to vCenter"
                ], 400);
            }
        }

        if (is_string($ticket)) {
            return response()->json([
                'error' => true,
                'message' => "Failed to get console ticket: $ticket"
            ], 400);
        }

        if ($ticket['error']) {
            return response()->json([
                'error' => true,
                'message' => $ticket['data']
            ], 400);
        }

        return response()->json([
            'error' => false,
            'data' => $ticket['data'],
        ]);
    }
}