<?php

namespace App\Actions\VM;

use App\Http\Services\vCenter;
use App\Models\ModuleVmware;

class ChangeIpVMAction
{
    public function __construct(private vCenter $vcenter) {}

    /**
     * Change IP address of a VM.
     *
     * Linux  → changeIPLinux.ps1  (-VMName, -IP, -Gateway, -DNS, -GuestUser, -GuestPassword)
     * Windows → changeWindows1line.ps1 (legacy inline variable pattern)
     *
     * @param  ModuleVmware  $vm
     * @param  string        $ipAddress
     * @param  string        $gateway     Empty string if not provided
     * @param  string        $osType      'windows' | 'linux'
     * @param  string        $dns         DNS server, default 8.8.8.8
     * @return string
     */
    public function execute(
        ModuleVmware $vm,
        string $ipAddress,
        string $gateway,
        string $osType,
        string $dns = '8.8.8.8',
        string $guestUser = '',
        string $guestPassword = ''
    ): string {
        try {
            $vcenter = $vm->vCenter
                ?? $vm->ipAddress?->host?->datacenter?->vCenter;

            if (!$vcenter) {
                return 'vCenter_Not_Found';
            }

            if (!$this->vcenter->loginServer($vcenter)) {
                return 'Login_Again';
            }

            // Use provided guest credentials, fallback to VM stored credentials
            $user = $guestUser ?: (string) $vm->user;
            $pass = $guestPassword ?: (string) $vm->getRawOriginal('password');

            return $this->vcenter->changeIpVM(
                (string) $vm->name,              // -VMName  (Get-VM -Name)
                (string) $vm->vmware_id,         // VMware ID (Windows -Id pattern)
                $ipAddress,
                $gateway,
                $osType,
                $user,                           // -GuestUser
                $pass,                           // -GuestPassword (plaintext)
                $dns,
                (string) $vm->hostname
            );
        } catch (\Throwable $e) {
            return 'Error: ' . $e->getMessage();
        }
    }
}