<?php

namespace App\Exports;

use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Concerns\WithTitle;
use Maatwebsite\Excel\Concerns\WithStyles;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;

class RingkasanExport implements FromCollection, WithHeadings, WithTitle, WithStyles
{
    private $data;
    private $page;

    public function __construct(iterable $data, $page = 1)
    {
        $this->data = $data;
        $this->page = $page;
    }


    public function collection()
    {
        $collection = collect();
        $items = method_exists($this->data, 'items') ? $this->data->items() : $this->data;

        foreach ($items as $item) {
            $collection->push([
                'Tanggal' => $item['tanggal'] ?? '-',
                'Total Item Terjual' => $item['total_item_terjual'] ?? 0,
                'Total Berat' => $item['total_berat'] ?? 0,
                'Total Pendapatan' => $item['total_pendapatan'] ?? 0,
                'Detail Sales' => $this->formatSalesData($item['sales'] ?? []),
            ]);
        }

        return $collection;
    }

    public function headings(): array
    {
        return [
            'Tanggal',
            'Total Item Terjual',
            'Total Berat',
            'Total Pendapatan',
            'Detail Sales'
        ];
    }

    public function title(): string
    {
        return "Ringkasan Halaman {$this->page}";
    }

    public function styles(Worksheet $sheet)
    {
        return [
            1 => ['font' => ['bold' => true]],
        ];
    }

    private function formatSalesData($sales): string
    {
        if (empty($sales)) {
            return '-';
        }

        $formatted = [];
        foreach ($sales as $sale) {
            $nama = $sale['nama'] ?? 'Sales Tidak Dikenal';
            $itemTerjual = $sale['item_terjual'] ?? 0;
            $pendapatan = $sale['pendapatan'] ?? '-';

            $formatted[] = "{$nama}: {$itemTerjual} item, {$pendapatan}";
        }

        return implode('; ', $formatted);
    }
}