<?php

namespace App\Exports;

use App\Models\QtyHistory;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\FromQuery;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Concerns\WithMapping;

class GrnReportsExport implements FromQuery , WithHeadings , WithMapping
{
    /**
    * @return \Illuminate\Support\Collection
    */

    private $no = 0;
    private $q;
    private $grn;
    public function __construct($q , $grn)
    {
        $this->q = $q;
        $this->grn = $grn;
    }

    /**
     * @return \Illuminate\Support\Collection
     */

    public function headings(): array
    {
        return [
            'no',
            __('message.grn'),
            __('message.part number'),
            __('message.product category'),
            __('message.name'),
            __('message.sales price'),
            __('message.qty'),
            __('message.cost'),
            __('message.wages'),
            __('message.original wages'),
            __('message.weight'),
            __('message.gold weight'),
            __('message.diamond size'),
            __('message.note'),
            __('message.user'),
            __('message.updated at'),
        ];
    }
    public function query()
    {
        $query = QTYHistory::join('products', 'qty_histories.product_id', '=', 'products.id')
            ->where('qty_histories.grn', $this->grn);

        if ($this->q) {
            $query->where('products.part_number', $this->q);
        }

        return $query->with(['product.productCategory', 'user'])
            ->orderBy('qty_histories.id', 'desc');
    }

    public function map($productQtyHistories): array
    {
        $this->no++;

        // Eager-loaded relationships
        $product = $productQtyHistories->product;
        $productCategory = $product->productCategory ?? null;
        $user = $productQtyHistories->user ?? null;

        return [
            $this->no,
            $productQtyHistories->grn,
            $product->part_number ?? '',
            $productCategory ? $productCategory->name : '',
            $product->name ?? '',
            number_format($product->sellingPrice() ?? 0, 2),
            $productQtyHistories->qty ?? 0,
            number_format($product->sellingCost() ?? 0, 2),
            number_format($product->wages ?? 0, 2),
            number_format($product->original_wages ?? 0, 2),
            $product->weight ?? 0,
            $product->goldWeight() ?? 0,
            htmlspecialchars(trim(strip_tags($product->diamond_size))) ?? '',
            $productQtyHistories->note ?? '',
            $user ? $user->name : '',
            $productQtyHistories->created_at ? $productQtyHistories->created_at->format('d/m/y H:i') : '',
        ];
    }
}