<?php

namespace Modules\Maintenance\Services;

use App\Utils\Util;
use Modules\Maintenance\Models\Equipment;
use Modules\Maintenance\Utils\MaintenanceUtil;

class EquipmentAssetSyncService
{
    public function __construct(
        protected MaintenanceUtil $maintenanceUtil,
        protected Util $util
    ) {}

    public function syncAssetForEquipment(Equipment $equipment, int $businessId, int $userId): ?int
    {
        if (! empty($equipment->fixed_asset_id)) {
            return (int) $equipment->fixed_asset_id;
        }

        if (! class_exists(\Modules\AssetManagement\Entities\Asset::class)
            || ! $this->maintenanceUtil->isAssetManagementEnabled($businessId)) {
            return null;
        }

        $settings = $this->maintenanceUtil->getMaintenanceSettings($businessId);
        if (empty($settings['auto_create_asset'])) {
            return null;
        }

        $assetCode = $equipment->code;
        $exists = \Modules\AssetManagement\Entities\Asset::where('business_id', $businessId)
            ->where('asset_code', $assetCode)
            ->exists();
        if ($exists) {
            $assetCode = $assetCode.'-'.substr(uniqid(), -4);
        }

        $asset = \Modules\AssetManagement\Entities\Asset::create([
            'business_id' => $businessId,
            'asset_code' => $assetCode,
            'name' => $equipment->name,
            'quantity' => 1,
            'model' => $equipment->model,
            'serial_no' => $equipment->serial_number,
            'category_id' => $settings['default_asset_category_id'] ?? null,
            'project_id' => $equipment->project_id,
            'purchase_date' => $equipment->installation_date,
            'unit_price' => 0,
            'is_allocatable' => 0,
            'description' => 'ایجاد خودکار از تجهیز CMMS: '.$equipment->code,
            'created_by' => $userId,
            'purchase_type' => 'owned',
        ]);

        if ($equipment->warranty_expires_at
            && class_exists(\Modules\AssetManagement\Entities\AssetWarranty::class)
            && $equipment->installation_date) {
            \Modules\AssetManagement\Entities\AssetWarranty::create([
                'asset_id' => $asset->id,
                'start_date' => $equipment->installation_date,
                'end_date' => $equipment->warranty_expires_at,
                'additional_note' => 'گارانتی همگام‌شده از CMMS',
            ]);
        }

        return (int) $asset->id;
    }

    public function updateLinkedAsset(Equipment $equipment): void
    {
        if (empty($equipment->fixed_asset_id)
            || ! class_exists(\Modules\AssetManagement\Entities\Asset::class)) {
            return;
        }

        $asset = \Modules\AssetManagement\Entities\Asset::find($equipment->fixed_asset_id);
        if (! $asset) {
            return;
        }

        $asset->update([
            'name' => $equipment->name,
            'model' => $equipment->model,
            'serial_no' => $equipment->serial_number,
            'project_id' => $equipment->project_id,
            'purchase_date' => $equipment->installation_date,
        ]);

        if ($equipment->warranty_expires_at
            && $equipment->installation_date
            && class_exists(\Modules\AssetManagement\Entities\AssetWarranty::class)) {
            $warranty = \Modules\AssetManagement\Entities\AssetWarranty::where('asset_id', $asset->id)->first();
            $payload = [
                'start_date' => $equipment->installation_date,
                'end_date' => $equipment->warranty_expires_at,
                'additional_note' => 'گارانتی همگام‌شده از CMMS',
            ];
            if ($warranty) {
                $warranty->update($payload);
            } else {
                \Modules\AssetManagement\Entities\AssetWarranty::create(array_merge($payload, ['asset_id' => $asset->id]));
            }
        }
    }
}