package utils

import (
	"github.com/xuri/excelize/v2"
	"reflect"
)

func ExportExcelFile[T any](headers []string, data []T, savePath string) {
	if savePath == "" || len(data) == 0 {
		return
	}
	f := excelize.NewFile()
	sheetName := "Sheet1"
	if err := f.SetSheetName("Sheet1", sheetName); err != nil {
		return
	}
	// 写入表头
	for i, header := range headers {
		cell, _ := excelize.CoordinatesToCellName(i+1, 1)
		if err := f.SetCellValue(sheetName, cell, header); err != nil {
			return
		}
	}
	// 使用反射获取结构体字段值
	for rowIndex, row := range data {
		rowValue := reflect.ValueOf(row)
		for colIndex := 0; colIndex < rowValue.NumField(); colIndex++ {
			cell, _ := excelize.CoordinatesToCellName(colIndex+1, rowIndex+2)
			field := rowValue.Field(colIndex)
			if field.CanInterface() {
				if err := f.SetCellValue(sheetName, cell, field.Interface()); err != nil {
					return
				}
			}
		}
	}
	// 保存 Excel 文件
	if err := f.SaveAs(savePath); err != nil {
		return
	}
}