<?php

declare(strict_types=1);

namespace App\Http\Controllers;

use App\Models\ChatMessage;
use App\Models\ProductionOrder;
use App\Services\FileService;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Throwable;

class ProductionOrderChatMessageController extends Controller
{
    public function store(
        Request $request,
        ProductionOrder $productionOrder,
        FileService $fileService,
    ): RedirectResponse {
        $validated = $request->validate([
            'message' => ['nullable', 'string'],
            'attachments' => ['nullable', 'array', 'max:5'],
            'attachments.*' => ['file', 'max:10240'],
        ]);
        $message = trim((string) ($validated['message'] ?? ''));
        $attachments = $request->file('attachments', []);

        if ($message === '' && $attachments === []) {
            return back()->with('danger', 'Нужно указать сообщение или добавить файл.');
        }

        try {
            $chatMessage = ChatMessage::query()->create([
                'production_order_id' => $productionOrder->id,
                'user_id' => (int) $request->user()->id,
                'notification_type' => ChatMessage::NOTIFICATION_NONE,
                'message' => $message !== '' ? $message : null,
            ]);

            $files = collect($attachments)
                ->map(fn ($attachment) => $fileService->saveUploadedFile(
                    "chat/production-orders/{$productionOrder->id}",
                    $attachment,
                ));
            $chatMessage->files()->syncWithoutDetaching($files->pluck('id'));
        } catch (Throwable $exception) {
            report($exception);

            return back()->with('error', 'Не удалось отправить сообщение в чат.');
        }

        return back()->with('success', 'Сообщение отправлено.');
    }

    public function destroy(
        ProductionOrder $productionOrder,
        ChatMessage $chatMessage,
        FileService $fileService,
    ): RedirectResponse {
        abort_unless((int) $chatMessage->production_order_id === (int) $productionOrder->id, 404);
        $files = $chatMessage->files()->get();

        DB::transaction(function () use ($chatMessage): void {
            $chatMessage->notifiedUsers()->detach();
            $chatMessage->files()->detach();
            $chatMessage->delete();
        });

        foreach ($files as $file) {
            $fileService->deleteFileWithThumbnail($file);
            $file->delete();
        }

        return back()->with('success', 'Сообщение удалено.');
    }
}