<?php

namespace App\Service;

use App\Exports\TableHeadExport;
use App\Import\Import;
use App\Import\ImportAll;
use App\Model\BasicType;
use App\Model\Customer;
use App\Model\CustomerInfo;
use App\Model\Depart;
use App\Model\Employee;
use App\Model\Product;
use App\Model\ProductCategory;
use App\Model\ProductPriceDetail;
use App\Model\SalesOrder;
use App\Model\SalesOrderInfo;
use App\Model\SalesOrderProductInfo;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Storage;
use Maatwebsite\Excel\Facades\Excel;
use PhpOffice\PhpSpreadsheet\IOFactory;

class ImportService extends Service
{
    const tmp_dir = 'upload_occ';

    const string = '/api/getFile/';

    //文件类型
    const FILE_TYPE = [
        'txt',
        'jpg',
        'png',
        'gif',
        'jpeg',
        'zip',
        'rar',
        'xlsx',
        'xls'
    ];

    //导入入口
    public function import($data){
//        //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['file'])) return [false,'导入文件不能为空'];

        try {
           $this->uploadFile($data['file']);
        }catch (\Throwable $exception) {
            return [false, $exception->getMessage() . ' (Code: ' . $exception->getCode() . ', Line: ' . $exception->getLine() . ')'];
        }

        return [true, ''];
    }

    public function uploadFile($file){
        if(empty($file)) return [false, '请上传文件'];
        // 获取文件相关信息
        $ext = $file->getClientOriginalExtension();     // 扩展名
        $realPath = $file->getRealPath();   //临时文件的绝对路径

        $ext = strtolower($ext);
        if (! in_array($ext, self::FILE_TYPE)){
            $str = '文件格式为:';
            foreach (self::FILE_TYPE as $value){
                $str.= $value . ' ' ;
            }
            return [false, $str];
        }

        $date = date("Y-m-d");
        //文件名
        $file_name = date("Ymd").time().rand(1000,9999);
        $filename =  $file_name.'.' . $ext;

        $dir = self::tmp_dir . '/' . $date . '/' . $filename;
        Storage::disk('public')->put($dir, file_get_contents($realPath));

        return [true, self::string . $filename];
    }

    public function getFileData($data){
        if(empty($data['url'])) return [false, '文件路径不能为空'];

        try{
            // 发送 HTTP 请求获取文件内容
            $response = file_get_contents($data['url']);
        }catch (\Throwable $exception){
            return [false, $exception->getMessage()];
        }
        if ($response === false) return [false, '文件获取失败'];

        // 创建一个临时文件资源
        $tempFile = tempnam(sys_get_temp_dir(), 'xlsx_');
        file_put_contents($tempFile, $response);

        // 使用 phpspreadsheet 读取文件
        try {
            // 创建一个 Xlsx 读取器
            $reader = IOFactory::createReader('Xlsx');

            // 加载临时文件
            $spreadsheet = $reader->load($tempFile);

            // 初始化一个数组来存储所有工作表的数据
            $allSheetData = [];

            // 遍历所有工作表
            foreach ($spreadsheet->getWorksheetIterator() as $worksheet) {
                $sheetData = [];
                foreach ($worksheet->getRowIterator() as $row) {
                    $cellIterator = $row->getCellIterator();
                    $cellIterator->setIterateOnlyExistingCells(false); // Loop all cells, even if it is not set
                    $rowData = [];

                    foreach ($cellIterator as $cell) {
                        $rowData[] = $cell->getValue();
                    }

                    $sheetData[] = $rowData;
                }

                // 将当前工作表的数据添加到总数据数组中
                $allSheetData[$worksheet->getTitle()] = $sheetData;
            }

            // 删除临时文件
            unlink($tempFile);
        } catch (\Exception $e) {
            // 删除临时文件
            unlink($tempFile);
            return [false, $e->getMessage()];
        }

        return [true , $allSheetData];
    }

    public function saveFile1($data){
        if(empty($data['url'])) return [false, '文件路径不能为空'];

        $this->downloadFile($data['url']);
    }

    public function downloadFile($url)
    {
        // 发送 HEAD 请求获取响应头
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_NOBODY, true); // 只获取头部信息
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HEADER, true);
        curl_setopt($ch, CURLOPT_FAILONERROR, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30); // 设置超时时间
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3');
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 忽略 SSL 证书验证（仅用于测试）
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); // 忽略 SSL 主机验证（仅用于测试）
        curl_setopt($ch, CURLOPT_VERBOSE, true); // 启用详细调试信息

        // 打开一个文件句柄来捕获调试信息
        $verbose = fopen('php://temp', 'w+');
        curl_setopt($ch, CURLOPT_STDERR, $verbose);

        // 执行请求
        $response = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $error = curl_error($ch);

        // 读取调试信息
        rewind($verbose);
        $verboseLog = stream_get_contents($verbose);
        fclose($verbose);

        if ($response === false || $httpCode !== 200) {
            curl_close($ch);
            return [false, '打开URL下的文件内容失败,请更换URL'];
        }dd($response);

        // 获取 Content-Disposition
        $contentDisposition = null;
        $headers = explode("\r\n", $response);
        foreach ($headers as $headerLine) {
            if (strpos($headerLine, 'Content-Disposition:') === 0) {
                $contentDisposition = trim(str_replace('Content-Disposition:', '', $headerLine));
                break;
            }
        }dd($headers);

        if ($contentDisposition === null) {
            curl_close($ch);
            return response()->json(['error' => 'Failed to determine file name from Content-Disposition'], 500);
        }

        // 从 Content-Disposition 中提取文件名
        preg_match('/fileName="?([^"]+)"?/', $contentDisposition, $matches);
        if (empty($matches)) {
            curl_close($ch);
            return response()->json(['error' => 'Failed to extract file name from Content-Disposition'], 500);
        }

        $filename = urldecode($matches[1]);
        $extension = pathinfo($filename, PATHINFO_EXTENSION);
dd($extension);
        if ($extension === '') {
            curl_close($ch);
            return response()->json(['error' => 'Failed to determine file extension'], 500);
        }

        // 关闭 cURL 资源
        curl_close($ch);

        // 发送 GET 请求获取文件内容
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_FAILONERROR, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30); // 设置超时时间
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3');
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 忽略 SSL 证书验证（仅用于测试）
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); // 忽略 SSL 主机验证（仅用于测试）

        // 执行请求
        $response = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $error = curl_error($ch);

        if ($response === false || $httpCode !== 200) {
            curl_close($ch);
            return response()->json(['error' => 'Failed to download file: HTTP status code ' . $httpCode . ', Error: ' . $error], 500);
        }

        // 关闭 cURL 资源
        curl_close($ch);

        // 将文件内容保存到本地存储
        Storage::put($filename, $response);

        return response()->json(['message' => 'File downloaded and saved successfully', 'file' => $filename]);
    }

    private function getFileTypeExtension($contentType)
    {
        $mimeTypeMap = [
            'application/pdf' => 'pdf',
            'application/msword' => 'doc',
            'application/vnd.openxmlformats-officedocument.wordprocessingml.document' => 'docx',
            'application/vnd.ms-excel' => 'xls',
            'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' => 'xlsx',
            'image/jpeg' => 'jpg',
            'image/png' => 'png',
            'image/gif' => 'gif',
            'text/plain' => 'txt',
            // 添加其他 MIME 类型和扩展名映射
        ];

        return isset($mimeTypeMap[$contentType]) ? $mimeTypeMap[$contentType] : null;
    }
}