<?php

namespace App\Http\Controllers\Business;

use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Modules\EcommerceFinance\Services\SupplierStatementStore;
use Modules\EcommerceFinance\Services\SupplierStatementTemplate;
use Symfony\Component\HttpFoundation\BinaryFileResponse;

/**
 * 供应商对账：对账单模板下载 + 厂家对账单上传（严格按模板校验）。
 */
class SupplierReconciliation extends Controller
{
    public function __construct(
        private readonly SupplierStatementTemplate $template,
        private readonly SupplierStatementStore $statements,
    ) {
        $this->middleware('auth');
        $this->middleware('company.identify');
    }

    public function template(): BinaryFileResponse
    {
        $path = $this->template->path();
        abort_unless(is_file($path), 404, '对账单模板不存在。');

        return response()->download($path, $this->template->filename());
    }

    public function upload(Request $request): JsonResponse|RedirectResponse
    {
        $request->validate([
            'import' => ['required', 'file', 'mimes:xlsx,xls,csv', 'max:51200'],
            'supplier' => ['required', 'string', 'max:191'],
        ]);

        $supplier = trim((string) $request->input('supplier'));
        if ($supplier === '') {
            abort(422, '请选择厂家。');
        }

        $records = $this->template->parse($request->file('import'), $supplier);
        $rows = $this->statements->save(
            $supplier,
            $records,
            (string) $request->file('import')->getClientOriginalName(),
            (int) (company_id() ?: 1),
            user_id() ? (int) user_id() : null,
        );

        $message = "对账单已保存：{$supplier} 共 {$rows} 行。";

        return $request->expectsJson()
            ? response()->json(['message' => $message, 'rows' => $rows])
            : back()->with('success', $message);
    }
}