import datetime
import os

from django.http import HttpResponse
from rest_framework.response import Response
from rest_framework.views import APIView

import logging

from PrivacyRetrieval.settings import PROJECT_ROOT, HTTP_HEAD
from apps.project.models import RetrievalProject

logger = logging.getLogger('django')


class ProjectListView(APIView):
    # create retrievalProject
    @staticmethod
    def post(request, *args, **kwargs):
        title = request.POST.get('title')
        project_type = request.POST.get('type')
        file = request.FILES.get('project')

        if not title:
            logger.error("项目名称不能为空")
            return HttpResponse(status=500, content='项目名称不能为空')

        if not project_type:
            logger.error("项目类型不能为空")
            return HttpResponse(status=500, content='项目类型不能为空')

        if not file:
            logger.error("项目上传失败")
            return HttpResponse(status=500, content='项目上传失败')

        create_time = update_time = datetime.datetime.now()

        if not RetrievalProject.objects.last():
            id_ = 1
        else:
            id_ = RetrievalProject.objects.order_by('id').last().id + 1

        file_dir = PROJECT_ROOT + str(id_) + "/" + str(create_time)
        if not os.path.exists(file_dir):
            os.makedirs(file_dir)
        file_path = file_dir + "/" + file.name
        with open(file_path, 'wb') as f:
            f.write(file.read())
        f.close()

        project = RetrievalProject.objects.create(title=title, type=project_type, project_file=file_path,
                                                  create_time=create_time, update_time=update_time)

        return Response({
            'id': project.id,
            'title': project.title,
            'type': project.type,
            'project_name': file.name,
            'project_url': HTTP_HEAD + project.project_file,
            'create_time': create_time,
            'update_time': update_time
        })

    # get project list
    @staticmethod
    def get(request, *args, **kwargs):
        title = request.GET.get('title')
        project_type = request.GET.get('type')
        sort = request.GET.get('sort')

        project_all = RetrievalProject.objects.order_by('id').filter(delete=False)
        if title:
            project_all = project_all.filter(title__contains=title)
        if project_type:
            project_all = project_all.filter(type__contains=project_type)
        if sort:
            project_all = project_all.order_by(sort)

        if not project_all:
            return Response([])

        info = []
        for project in project_all.all():
            info.append({
                'id':project.id,
                'title': project.title,
                'type': project.type,
                'create_time': project.create_time,
                'update_time': project.update_time
            })
        return Response(info)