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# -*- coding:utf-8 -*-
import json, os, datetime, time
from django.conf import settings
from django.http import HttpResponse
from django.views.decorators.csrf import csrf_exempt

# 2.5MB - 2621440
# 5MB - 5242880
# 10MB - 10485760
# 20MB - 20971520
# 50MB - 5242880
# 100MB 104857600
# 250MB - 214958080
# 500MB - 429916160

#
# import 到具体views.py上
@csrf_exempt
def ke_upload_view(request):
    ext_allowed = ['gif', 'jpg', 'jpeg', 'png']
    max_size = 2621440
    today = datetime.datetime.today()
    save_dir = 'upload/images/%d/%d/%d/' % (today.year, today.month, today.day)
    save_path = settings.MEDIA_ROOT+save_dir
    save_url = settings.MEDIA_URL+save_dir
    #print save_dir, save_path, save_url

    if request.method == 'POST':
        file = request.FILES['imgFile']

        if not file.name:
            return HttpResponse(json.dumps(
                { 'error': 1, 'message': u'请选择要上传的文件' }
            ))

        ext = file.name.split('.').pop()
        if ext not in ext_allowed:
            return HttpResponse(json.dumps(
                { 'error': 1, 'message': u'请上传后缀为%s的文件' %  ext_allowed}
            ))

        if file.size > max_size:
            return HttpResponse(json.dumps(
                { 'error': 1, 'message': u'上传的文件大小不能超过2.5MB'}
            ))

        if not os.path.isdir(save_path):
            os.makedirs(save_path)

        new_file = '%s.%s' % (int(time.time()), ext)

        destination = open(save_path+new_file, 'wb+')
        for chunk in file.chunks():
            destination.write(chunk)
        destination.close()

        return HttpResponse(json.dumps(
                { 'error': 0, 'url': save_url+new_file}
        ))