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xin-procurement/app/Exports/PurchaseSupplierSheet.php
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2026-08-20 15:39:39 +08:00

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<?php
namespace App\Exports;
use App\Models\PurchaseOrderModel;
use App\Models\SupplierModel;
use App\Services\PurchaseItemService;
use Illuminate\Support\Collection;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\WithStrictNullComparison;
use Maatwebsite\Excel\Concerns\WithStyles;
use Maatwebsite\Excel\Concerns\WithTitle;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
/**
* 供应商采购明细导出 · 单供应商工作表(成本口径:金额=Σ数量×成本价)
*/
class PurchaseSupplierSheet implements FromCollection, WithStrictNullComparison, WithStyles, WithTitle
{
private ?Collection $rows = null;
/** @var array<int, string> 特殊行索引(1 起)=> 类型(title/header/summary */
private array $specialRows = [];
/** 列头所在行索引 */
private int $headerRow = 1;
public function __construct(
private readonly PurchaseOrderModel $purchase,
private readonly SupplierModel $supplier,
private readonly string $sheetTitle,
) {
}
/**
* 导出行:标题/空行/列头/明细/合计
*/
public function collection(): Collection
{
if ($this->rows !== null) {
return $this->rows;
}
$items = app(PurchaseItemService::class)->supplierRows($this->purchase->id, $this->supplier->id);
$rows = [];
$rowIndex = 0;
// 标题行
$rows[] = [$this->supplier->name . ' · 采购单 ' . $this->purchase->purchase_no];
$this->specialRows[++$rowIndex] = 'title';
// 空行
$rows[] = [''];
$rowIndex++;
// 列头
$rows[] = ['序号', '品名', '市场', '包规', '单位', '成本价', '数量', '重量(斤)', '金额'];
$this->specialRows[++$rowIndex] = 'header';
$this->headerRow = $rowIndex;
// 明细行
$totalQuantity = 0;
$totalWeight = '0';
$totalAmount = '0';
foreach (array_values($items) as $sort => $item) {
$rows[] = [
$sort + 1,
$item['product_name'],
$item['market'],
$item['product_spec'],
$item['unit'],
(float) $item['cost_price'],
(int) $item['quantity'],
(float) $item['weight'],
(float) $item['amount'],
];
$rowIndex++;
$totalQuantity += (int) $item['quantity'];
$totalWeight = bcadd($totalWeight, (string) $item['weight'], 3);
$totalAmount = bcadd($totalAmount, (string) $item['amount'], 2);
}
// 合计行
$rows[] = ['', '合计', '', '', '', '', $totalQuantity, (float) $totalWeight, (float) $totalAmount];
$this->specialRows[++$rowIndex] = 'summary';
return $this->rows = collect($rows);
}
public function title(): string
{
return $this->sheetTitle;
}
/**
* 标题/列头/合计加粗,冻结列头
*/
public function styles(Worksheet $sheet): array
{
$this->collection();
$sheet->freezePane('A' . ($this->headerRow + 1));
$widths = [6, 24, 12, 14, 8, 10, 10, 12, 12];
foreach ($widths as $index => $width) {
$sheet->getColumnDimension(Coordinate::stringFromColumnIndex($index + 1))->setWidth($width);
}
$styles = [];
foreach ($this->specialRows as $row => $type) {
$style = match ($type) {
'title' => ['font' => ['bold' => true, 'size' => 14]],
'header', 'summary' => ['font' => ['bold' => true]],
default => [],
};
if ($style !== []) {
$styles[$row] = $style;
}
}
return $styles;
}
}