<?php
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namespace app\common\lists;


use app\common\cache\ExportCache;
use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Style\Border;
use PhpOffice\PhpSpreadsheet\Style\Fill;

trait ListsExcelTrait
{

    public int $pageStart = 1; //导出开始页码
    public int $pageEnd = 200; //导出介绍页码
    public string $fileName = ''; //文件名称


    /**
     * @notes 创建excel
     * @param $excelFields
     * @param $lists
     * @return string
     * @throws \PhpOffice\PhpSpreadsheet\Exception
     * @throws \PhpOffice\PhpSpreadsheet\Writer\Exception
     * @author 令狐冲
     * @date 2021/7/21 16:04
     * Excel显示数字时，
        若是数字大于12位，它会自动转化为科学计数法；
        若是数字大于15位，它不只用于科学计数法表示，还会只保留高15位，其余位都变0。
     *
     */
    public function createExcel($excelFields, $lists)
    {
        $title = array_values($excelFields);
        $letter_column = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];

        $data = [];
        foreach ($lists as $row) {
            $temp = [];
            foreach ($excelFields as $key => $excelField) {
                $fieldData = $row[$key];
                if(is_numeric($fieldData) && strlen($fieldData) >= 11){
                    $fieldData.="\t";
                }
                $temp[$key] = $fieldData;
            }
            $data[] = $temp;
        }

        $spreadsheet = new Spreadsheet();
        $sheet = $spreadsheet->getActiveSheet();

        //设置单元格内容
        foreach ($title as $key => $value) {
            // 单元格内容写入
            $sheet->setCellValueByColumnAndRow($key + 1, 1, $value);
        }
        //设置行高
        $spreadsheet->getActiveSheet()->getRowDimension(1)->setRowHeight(25);
        $row = 2; //从第二行开始
        foreach ($data as $item) {
            $column = 1;
            $merge_num = isset($item['goods_name_arr']) && is_array($item['goods_name_arr']) ? count($item['goods_name_arr']) : 0;//合并数量
            $value_key = 0;
            foreach ($item as $value) {
                //设置列宽
                $columnWidth = (is_array($value) ? strlen($value[0]) : strlen($value)) * 1.2;
                $columnWidth = max([$columnWidth, 15]);
                $spreadsheet->getActiveSheet()->getColumnDimension($letter_column[$value_key])->setWidth($columnWidth);

                if (is_array($value) && count($value) <= 1) {
                    $value = $value[0] ?? '';
                }
                if ($merge_num > 1) {
                    //合并单元格
                    $spreadsheet->getActiveSheet()->mergeCells($letter_column[$value_key].$row.':'.$letter_column[$value_key].($row + $merge_num - 1));
                    if (is_array($value)) {
                        //将合并后的单元格拆分
                        $spreadsheet->getActiveSheet()->unmergeCells($letter_column[$value_key].$row.':'.$letter_column[$value_key].($row + $merge_num - 1));
                        foreach ($value as $key=>$val) {
                            // 在 = 前面加个空格防止报错
                            $val = strpos($val, '=') === 0 ? " " . $val : $val;

                            //单元格内容写入
                            $sheet->setCellValueByColumnAndRow($column, $row + $key, $val);
                        }
                    } else {
                        // 在 = 前面加个空格防止报错
                        $value = strpos($value, '=') === 0 ? " " . $value : $value;

                        //单元格内容写入
                        $sheet->setCellValueByColumnAndRow($column, $row, $value);
                    }
                } else {
                    // 在 = 前面加个空格防止报错
                    $value = strpos($value, '=') === 0 ? " " . $value : $value;

                    //单元格内容写入
                    $sheet->setCellValueByColumnAndRow($column, $row, $value);
                }

                $column++;
                $value_key++;
            }
            if ($merge_num > 1) {
                for ($i=$row;$i<($row+$merge_num);$i++) {
                    //设置行高
                    $spreadsheet->getActiveSheet()->getRowDimension($i)->setRowHeight(25);
                }
                $row = $row + $merge_num;
            } else {
                //设置行高
                $spreadsheet->getActiveSheet()->getRowDimension($row)->setRowHeight(25);
                $row++;
            }
        }

        $getHighestRowAndColumn = $sheet->getHighestRowAndColumn();
        $HighestRow = $getHighestRowAndColumn['row'];
        $column = $getHighestRowAndColumn['column'];
        $titleScope = 'A1:' . $column . '1';//第一（标题）范围（例：A1:D1)

        $sheet->getStyle($titleScope)
            ->getFill()
            ->setFillType(Fill::FILL_SOLID) // 设置填充样式
            ->getStartColor()
            ->setARGB('26956d');
        // 设置文字颜色为白色
        $sheet->getStyle($titleScope)->getFont()->getColor()
            ->setARGB('FFFFFF');

        $allCope = 'A1:' . $column . $HighestRow;//整个表格范围（例：A1:D5）
        //设置水平垂直居中
        $styleArray = [
            'alignment' => [
                'horizontal' => \PhpOffice\PhpSpreadsheet\Style\Alignment::HORIZONTAL_CENTER,
                'vertical' => \PhpOffice\PhpSpreadsheet\Style\Alignment::VERTICAL_CENTER,
            ],
        ];
        $sheet->getStyle($allCope)->applyFromArray($styleArray);

        $sheet->getStyle($allCope)->getBorders()->getAllBorders()->setBorderStyle(Border::BORDER_THIN);

        $writer = IOFactory::createWriter($spreadsheet, 'Xlsx');

        //创建excel文件
        $exportCache = new ExportCache();
        $src = $exportCache->getSrc();
        if (!file_exists($src)) {
            mkdir($src, 0775, true);
        }
        $writer->save($src . $this->fileName);
        //设置本地excel缓存并返回下载地址
        return (string)(url('index/download/export', ['file' => $exportCache->setFile($this->fileName)], true, true));
    }


    /**
     * @notes 获取导出信息
     * @return array
     * @author 令狐冲
     * @date 2021/7/29 16:08
     */
    public function excelInfo()
    {
        $count = $this->count();
        $sum_page = max(ceil($count / $this->pageSize), 1);
        return [
            'count' => $count, //所有数据记录数
            'page_size' => $this->pageSize,//每页记录数
            'sum_page' => $sum_page,//一共多少页
            'max_page' => floor($this->pageSizeMax / $this->pageSize),//最多导出多少页
            'all_max_size' => $this->pageSizeMax,//最多导出记录数
            'page_start' => $this->pageStart,//导出范围页码开始值
            'page_end' => min($sum_page, $this->pageEnd),//导出范围页码结束值
            'file_name' => $this->fileName,//默认文件名
        ];
    }
}