import urllib.parse

from django.contrib.staticfiles import finders
from django.http import FileResponse, HttpResponseNotFound
import os


def download_excel_template(request, template_name):

    file_path = finders.find(f'excels/{template_name}')

    if not file_path:
        return HttpResponseNotFound('<h1>文件未找到</h1>')

    # 直接创建一个FileResponse，不需要先打开文件
    response = FileResponse(open(file_path, 'rb'), content_type='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet')
    # 使用urllib.parse.quote进行URL编码以确保文件名中的特殊字符被正确处理
    response['Content-Disposition'] = f'attachment; filename="{urllib.parse.quote(template_name)}"'
    return response