<?php
namespace app\admin\controller;

use app\common\controller\BaseController;
use app\common\model\PostCategory;
use app\common\model\Sku;
use app\common\model\SkuAttribute;
use app\common\service\OssService;
use app\common\traits\crud\CrudControllerTrait;
use app\common\service\SkuService;
use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Worksheet\Drawing;
use support\Db;
use support\Request;
use support\Response;

class SkuController extends BaseController
{
    use CrudControllerTrait;

    protected $noNeedLogin = ['template'];

    protected $noNeedHeaderData = ['template'];

    protected $service;

    public function __construct()
    {
        $this->service = new SkuService();
    }

    /**
     * 创建
     *
     * @param Request $request 请求对象
     * @return mixed 返回创建成功的数据或信息
     */
    public function store(Request $request)
    {
        try {
            $data = $this->validate($this->service->getValidator(), $request->post(), 'store');
            $res = $this->service->serviceStore($request, $data);
            return $this->success($res, '创建成功');
        } catch (\Throwable $e) {
            return $this->error($e->getMessage());
        }
    }

    /**
     * 列表页数据格式化
     *
     * @param array $data
     * @return array
     */
     protected function indexFormat($data)
     {
         if (isset($data['created_at']))
             $data['created_at'] = date('Y-m-d H:i:s', $data['created_at']);
         if (isset($data['updated_at']))
             $data['updated_at'] = date('Y-m-d H:i:s', $data['updated_at']);
         if (isset($data['spec_json'])){
             $data['spec'] = json_decode($data['spec_json'], true);
             foreach ($data['spec'] as $k=>$v){
                 $data['spec'][$k]['attr_type'] = SkuAttribute::where('id', $v['attr_id'])->value('attr_type');
             }
         }
         if (isset($data['category_id']))
             $data['category_name'] = PostCategory::where('id', $data['category_id'])->value('name');
         $ossservice = new OssService();
         if (!empty($data['image'])){
             $data['image'] = explode(',',$data['image']);
             foreach ($data['image'] as $key => $image){
                 $data['image_pull'][$key] = $ossservice->generatePrivateUrl($image);
             }
         }else{
             $data['image'] = [];
             $data['image_pull'] = [];
         }
         if (!empty($data['main_image'])){
             $data['main_image_pull'] = $ossservice->generatePrivateUrl($data['main_image']);
         } else {
             $data['main_image_pull'] = [];
         }
         return $data;
     }

    public function import(Request $request)
    {
        $file = $request->file('file');
        if (!$file) return json(['code'=>1,'msg'=>'未上传文件']);

        $path = runtime_path('upload/' . uniqid() . '.xlsx');
        $file->move($path);

        $spreadsheet = IOFactory::load($path);
        $sheet = $spreadsheet->getActiveSheet();

        // 提取图片（按行号）
//        $rowImages = $this->extractImages($sheet);

        $highestRow = $sheet->getHighestRow();
        $highestCol = $sheet->getHighestColumn();

        $header = $sheet->rangeToArray("A1:{$highestCol}1")[0];
        $header = array_map('trim', $header);

        $allowFields = [
            'product_name' => '产品名称',
            'model' => '产品型号',
            'brand' => '品牌',
            'category_id' => '分类',
            'price' => '价格',
//            'spec_json' => '商品属性'
        ];
        $fieldsName = array_flip($allowFields);

        $insertData = [];
        $now = time();

        Db::beginTransaction();
        try {
            for ($row = 2; $row <= $highestRow; $row++) {
                $rowData = $sheet->rangeToArray(
                    "A{$row}:{$highestCol}{$row}", null, true, false
                )[0];

                $data = [];
                foreach ($header as $i => $field) {
                    if (in_array($field, $allowFields)) {
                        $data[$fieldsName[$field]] = trim((string)($rowData[$i] ?? ''));
                    }
                }

                if (empty($data['product_name'])) {
                    continue;
                }

                $data['category_id'] = PostCategory::where('name', $rowData[3])->value('id')??0;
//                if(!empty($rowData[5])){
//                    $desci = explode(';', $rowData[5]);
//                    $desc = [];
//                    foreach ($desci as $k => $v){
//                        $item = explode(':', $v);
//                        $desc[$item[0]] = $item[1];
//                        $data['desc'] = json_encode($desc);
//                    }
//                }

                $data['code'] = $this->service->generateUniqueCode();
                $data['brand'] = $data['brand'] ?: '西门子';
                $data['price'] = $data['price'] ?: 0;
                $data['status'] = $data['status'] ?? 2;

                // 图片
//                $data['main_image'] = $rowImages[$row] ?? null;

                $data['created_at'] = $now;
                $data['updated_at'] = $now;

                $insertData[] = $data;

                if (count($insertData) >= 200) {
                    Sku::insert($insertData);
//                    Db::table('sku')->insert($insertData);
                    $insertData = [];
                }
            }

            if ($insertData) {
                Sku::insert($insertData);
//                Db::table('sku')->insert($insertData);
            }

            Db::commit();
        } catch (\Throwable $e) {
            Db::rollBack();
            return $this->error($e->getMessage());
        } finally {
            @unlink($path);
        }

        return $this->success([], '导入成功');
    }

    private function extractImages($sheet): array
    {
        $images = [];
        foreach ($sheet->getDrawingCollection() as $drawing) {
            if ($drawing instanceof Drawing) {
                preg_match('/\d+/', $drawing->getCoordinates(), $m);
                $row = (int)$m[0];

                $dir = runtime_path('upload/images/');
                if (!is_dir($dir)) mkdir($dir, 0755, true);

                $file = uniqid() . '.' . $drawing->getExtension();
                copy($drawing->getPath(), $dir . $file);

                $images[$row] = 'upload/images/' . $file;
            }
        }
        return $images;
    }

    /**
     * 下载 Excel 示例模板
     */
    public function template(Request $request): Response
    {
        $filePath = runtime_path() . '\upload\import.xlsx';
        var_dump($filePath);

        if (!file_exists($filePath)) {
            return response('文件不存在', 404);
        }

        return response()->download(
            $filePath,
            '导入示例.xlsx'   // 下载时显示的文件名
        );
    }
}