<?php

namespace App\Jobs;

use App\Events\SendWebSocketMessageEvent;
use App\Models\Contract;
use App\Models\File;
use App\Models\MafOrder;
use App\Models\Order;
use App\Models\Product;
use App\Models\ProductSKU;
use App\Models\Reclamation;
use App\Models\Schedule;
use App\Models\Ttn;
use Exception;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Queue\Queueable;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Storage;

class ClearYearDataJob implements ShouldQueue
{
    use Queueable;

    public function __construct(
        private readonly int $year,
        private readonly int $userId,
    ) {}

    public function handle(): void
    {
        try {
            DB::beginTransaction();

            $this->clearData();

            DB::commit();

            Log::info("Clear year data job done for year {$this->year}");

            event(new SendWebSocketMessageEvent(
                "Данные за {$this->year} год успешно удалены!",
                $this->userId,
                ['success' => true, 'year' => $this->year]
            ));
        } catch (Exception $e) {
            DB::rollBack();

            Log::error("Clear year data job failed for year {$this->year}: " . $e->getMessage());

            event(new SendWebSocketMessageEvent(
                "Ошибка удаления данных за {$this->year} год: " . $e->getMessage(),
                $this->userId,
                ['error' => $e->getMessage(), 'year' => $this->year]
            ));
        }
    }

    private function clearData(): void
    {
        $orderIds = Order::withoutGlobalScopes()->withTrashed()->where('year', $this->year)->pluck('id');
        $productIds = Product::withoutGlobalScopes()->withTrashed()->where('year', $this->year)->pluck('id');
        $productSkuIds = ProductSKU::withoutGlobalScopes()->withTrashed()->where('year', $this->year)->pluck('id');
        $reclamationIds = Reclamation::whereIn('order_id', $orderIds)->pluck('id');

        $fileIds = $this->collectFileIds($orderIds, $productIds, $productSkuIds);

        // Рекламации и связанные данные
        DB::table('reclamation_details')->whereIn('reclamation_id', $reclamationIds)->delete();
        DB::table('reclamation_product_sku')->whereIn('reclamation_id', $reclamationIds)->delete();
        DB::table('reclamation_photo_before')->whereIn('reclamation_id', $reclamationIds)->delete();
        DB::table('reclamation_photo_after')->whereIn('reclamation_id', $reclamationIds)->delete();
        DB::table('reclamation_document')->whereIn('reclamation_id', $reclamationIds)->delete();
        DB::table('reclamation_act')->whereIn('reclamation_id', $reclamationIds)->delete();
        Reclamation::whereIn('id', $reclamationIds)->delete();

        // Связи заказов с файлами
        DB::table('order_photo')->whereIn('order_id', $orderIds)->delete();
        DB::table('order_document')->whereIn('order_id', $orderIds)->delete();
        DB::table('order_statement')->whereIn('order_id', $orderIds)->delete();

        // Расписания
        Schedule::whereIn('order_id', $orderIds)->delete();

        // SKU продуктов
        ProductSKU::withoutGlobalScopes()->withTrashed()->where('year', $this->year)->forceDelete();

        // Заказы
        Order::withoutGlobalScopes()->withTrashed()->where('year', $this->year)->forceDelete();

        // Заказы МАФ
        MafOrder::withoutGlobalScopes()->withTrashed()->where('year', $this->year)->forceDelete();

        // Продукты
        Product::withoutGlobalScopes()->withTrashed()
            ->whereIn('id', $productIds)
            ->update(['certificate_id' => null]);
        Product::withoutGlobalScopes()->withTrashed()->where('year', $this->year)->forceDelete();

        // ТТН
        Ttn::where('year', $this->year)->update(['file_id' => null]);
        Ttn::where('year', $this->year)->delete();

        // Контракты
        Contract::where('year', $this->year)->delete();

        // Файлы
        $this->deleteFiles($fileIds);
    }

    private function collectFileIds($orderIds, $productIds, $productSkuIds): \Illuminate\Support\Collection
    {
        $fileIds = collect();

        $fileIds = $fileIds->merge(
            DB::table('order_photo')->whereIn('order_id', $orderIds)->pluck('file_id')
        );
        $fileIds = $fileIds->merge(
            DB::table('order_document')->whereIn('order_id', $orderIds)->pluck('file_id')
        );
        $fileIds = $fileIds->merge(
            DB::table('order_statement')->whereIn('order_id', $orderIds)->pluck('file_id')
        );

        $reclamationIds = Reclamation::whereIn('order_id', $orderIds)->pluck('id');

        $fileIds = $fileIds->merge(
            DB::table('reclamation_photo_before')->whereIn('reclamation_id', $reclamationIds)->pluck('file_id')
        );
        $fileIds = $fileIds->merge(
            DB::table('reclamation_photo_after')->whereIn('reclamation_id', $reclamationIds)->pluck('file_id')
        );
        $fileIds = $fileIds->merge(
            DB::table('reclamation_document')->whereIn('reclamation_id', $reclamationIds)->pluck('file_id')
        );
        $fileIds = $fileIds->merge(
            DB::table('reclamation_act')->whereIn('reclamation_id', $reclamationIds)->pluck('file_id')
        );

        $fileIds = $fileIds->merge(
            Product::withoutGlobalScopes()->withTrashed()
                ->whereIn('id', $productIds)
                ->whereNotNull('certificate_id')
                ->pluck('certificate_id')
        );

        $fileIds = $fileIds->merge(
            ProductSKU::withoutGlobalScopes()->withTrashed()
                ->whereIn('id', $productSkuIds)
                ->whereNotNull('passport_id')
                ->pluck('passport_id')
        );

        $fileIds = $fileIds->merge(
            Ttn::where('year', $this->year)->whereNotNull('file_id')->pluck('file_id')
        );

        return $fileIds->unique();
    }

    private function deleteFiles($fileIds): void
    {
        $files = File::whereIn('id', $fileIds)->get();

        foreach ($files as $file) {
            if ($file->path && Storage::disk('public')->exists($file->path)) {
                Storage::disk('public')->delete($file->path);
            }
        }

        File::whereIn('id', $fileIds)->delete();
    }
}