<?php

namespace App\Services\Hypervisor;

use App\Models\Hypervisor;

class HypervisorManager
{
    private array $drivers = [];

    public function driver(Hypervisor $hypervisor): HypervisorDriverInterface
    {
        $key = $hypervisor->id;

        if (!isset($this->drivers[$key])) {
            $this->drivers[$key] = $this->resolveDriver($hypervisor);
        }

        return $this->drivers[$key];
    }

    private function resolveDriver(Hypervisor $hypervisor): HypervisorDriverInterface
    {
        return match ($hypervisor->type) {
            'vcenter', 'esxi' => new VCenterDriver($hypervisor),
            'proxmox'         => new ProxmoxDriver($hypervisor),
            'hyper-v'         => new HyperVDriver($hypervisor),
            default           => throw new \InvalidArgumentException("Unsupported hypervisor type: {$hypervisor->type}"),
        };
    }

    public function testConnection(Hypervisor $hypervisor): array
    {
        try {
            $driver = $this->resolveDriver($hypervisor);
            $result = $driver->testConnection();
            return ['success' => true, 'message' => 'Connection successful', 'info' => $result];
        } catch (\Throwable $e) {
            return ['success' => false, 'message' => $e->getMessage()];
        }
    }

    public function syncAll(): void
    {
        Hypervisor::where('status', '!=', 'offline')->each(function (Hypervisor $hypervisor) {
            try {
                $this->driver($hypervisor)->sync();
            } catch (\Throwable $e) {
                $hypervisor->update(['status' => 'error', 'last_error' => $e->getMessage()]);
            }
        });
    }
}