<?php

namespace App\Services\Export;

use App\Models\Dictionary\District;
use App\Models\File;
use Illuminate\Support\Facades\Storage;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Style\Border;
use PhpOffice\PhpSpreadsheet\Style\Color;
use PhpOffice\PhpSpreadsheet\Style\Fill;
use PhpOffice\PhpSpreadsheet\Writer\Xlsx;

class ExportDistrictsService
{
    public function handle(int $userId): string
    {
        $spreadsheet = new Spreadsheet();
        $sheet = $spreadsheet->getActiveSheet();
        $sheet->setTitle('Округа');

        // Заголовки
        $sheet->setCellValue('A1', 'ID');
        $sheet->setCellValue('B1', 'Сокращение');
        $sheet->setCellValue('C1', 'Название');

        // Стиль заголовков
        $sheet->getStyle('A1:C1')->getFont()->setBold(true);
        $sheet->getStyle('A1:C1')->getFill()
            ->setFillType(Fill::FILL_SOLID)
            ->getStartColor()->setARGB('DDDDDD');

        // Данные
        $districts = District::orderBy('id')->get();
        $i = 2;
        foreach ($districts as $district) {
            $sheet->setCellValue('A' . $i, $district->id);
            $sheet->setCellValue('B' . $i, $district->shortname);
            $sheet->setCellValue('C' . $i, $district->name);
            $i++;
        }

        // Границы
        if ($i > 2) {
            $sheet->getStyle('A1:C' . ($i - 1))
                ->getBorders()
                ->getAllBorders()
                ->setBorderStyle(Border::BORDER_THIN)
                ->setColor(new Color('777777'));
        }

        // Автоширина колонок
        foreach (range('A', 'C') as $col) {
            $sheet->getColumnDimension($col)->setAutoSize(true);
        }

        // Сохранение
        $fileName = 'export_districts_' . date('Y-m-d_H-i-s') . '.xlsx';
        $writer = new Xlsx($spreadsheet);
        $fd = 'export/districts';
        Storage::disk('public')->makeDirectory($fd);
        $fp = storage_path('app/public/' . $fd . '/') . $fileName;
        Storage::disk('public')->delete($fd . '/' . $fileName);
        $writer->save($fp);

        $link = url('/storage/' . $fd . '/' . $fileName);

        // Создаём запись в таблице files
        File::query()->create([
            'link' => $link,
            'path' => $fp,
            'user_id' => $userId,
            'original_name' => $fileName,
            'mime_type' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
        ]);

        return $link;
    }
}