<?php

namespace App\Service;

use App\Exports\TableHeadExport;
use App\Import\ImportAll;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Maatwebsite\Excel\Facades\Excel;
use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Shared\Date;

class ImportService extends Service
{
    public static $type = [
        'product', //存货
    ];

    public function getTableTitleXls($data,$user){
        if(empty($data['type'])) return [false,'缺少类型'];
        if(! in_array($data['type'],self::$type)) return [false,'类型不存在'];

        //获取配置文件
        $fuc = $data['type'];
        list($status,$return) = $this->$fuc($data,$user);
        list($msg,$filename) = $return;
        if(! $status) return [false, $msg];

        $headers = array_column($msg,'value');
        Excel::store(new TableHeadExport([], $headers),"/public/export/{$filename}", null, 'Xlsx', []);
        return [true, ['file' => $filename]];
    }

    private function getTableConfig($type = ""){
        if(empty($type)) return [];

        //获取配置文件
        $config = "excel." . $type . "Table";
        return config($config) ?? [];
    }

    private function product($data,$user){
        $config_array = $this->getTableConfig($data['type']);
        if(empty($config_array)) return [false, ['导入配置表头文件不存在','']];

        //生成下载文件
        $filename =  "存货导入模板_" . time() . '.' . 'xlsx';

        return [true, [$config_array, $filename]];
    }

    //导入入口
    public function importAll($data,$user){
//        //不超时
//        ini_set('max_execution_time', 0);
//        //内存设置
//        ini_set('memory_limit', -1);
//        $reader = IOFactory::createReader('Xlsx');
//        $reader->setReadDataOnly(true); // 只读取有数据的单元格
//        $spreadsheet = $reader->load($data['file']);
//        dd($spreadsheet);
//        // 创建一个Reader对象
//        $reader = IOFactory::createReader('Xlsx'); // 根据你的文件格式选择合适的reader
//
//// 加载Excel文件
//        $spreadsheet = $reader->load($data['file']);
//
//// 获取第一个工作表
//        $worksheet = $spreadsheet->getActiveSheet();
//
//// 获取总行数
//        $totalRows = $worksheet->getHighestRow();dd($totalRows);
        if(empty($data['type'])) return [false,'缺少导入类型，导入失败'];
        if(! in_array($data['type'],self::$type)) return [false,'导入类型不存在，导入失败'];
        if(empty($data['file'])) return [false,'导入文件不能为空'];

        try {
            $import = new ImportAll();
            //设置导入人id
            $import->setCrt($user['id']);
            $import->setUser($user);
            $import->setType($data['type']);
            $other = $data;
            unset($other['file']);
            $import->setOtherParam($other);

            //导入
            \Maatwebsite\Excel\Facades\Excel::import($import,$data['file']);
            if($import->getMsg()) {
                $bool = $import->getIsLongText();
                if($bool) {
                    return [0, $import->getMsg()];
                }else{
                    return [false, $import->getMsg()];
                }
            }
        }catch (\Throwable $exception) {
            return [false, $exception->getMessage() . ' (Code: ' . $exception->getCode() . ', Line: ' . $exception->getLine() . ')'];
        }

        return [true, ''];
    }

    public function productImport($array, $user, $other_param){
        $upload = $array[0];
        list($status, $msg) = $this->compareTableAndReturn($upload, $other_param);
        if(! $status) return [false, $msg];
        $table_config = $msg;

        // 去除表头
        unset($array[0]);
        if(empty($array)) return [false, '导入数据不能为空'];

        list($array, $error) = $this->checkProduct($array, $table_config);
        if(empty($array)) return [false, '导入数据不能为空'];

        try{
            DB::commit();
        }catch (\Exception $e){
            DB::rollBack();
            return [false, $e->getMessage() . $e->getLine() . $e->getCode()];
        }

        return [true, ''];
    }

    private function checkProduct($array, $table_config){
        $error = [];
        foreach ($array as $key => $value){
            $line = '第' . $key . '行';
            $rowData = array_filter($value);
            if (empty($rowData)) {
                unset($array[$key]);
            } else{
                foreach ($value as $k => $v){
                    $row = '第' . $k . '列';
                    $tmp_v = trim($v);
                    if(! isset($table_config[$k])){
                        $error[] = $line . $row . "数据不存在";
                    }else{
                        $table_tmp = $table_config[$k] ?? [];
                        if(! empty($table_tmp['required']) && empty($tmp_v)) $error[] = $line . $table_tmp['value'] . "必填";
                        if(! empty($table_tmp['unique']))
                    }

                    $value[$k] = trim($v);
                }
            }
        }
    }

    //模板校验
    private function compareTableAndReturn($upload, $param){
        if(empty($upload)) return [false, '表头不能为空'];
        $config_array = $this->getTableConfig($param['type']);
        if(empty($config_array)) return [false, '导入配置表头文件不存在'];

        foreach ($config_array as $key => $value){
            $key_position = $key + 1;
            if(! isset($upload[$key])) return [false, "第" . $key_position . "列表头缺失"];
            $tmp_v = trim($upload[$key]);
            if($tmp_v != $value['value']) return [false, "第" . $key_position . "列表头与模板不符合,请重新下载模板"];
        }

        return [true, $config_array];
    }
}