import datetime
import os

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

from TestLaboratory.settings import PLAN_ROOT, TASK_ROOT
from apps.file.models import FileManager
from apps.log.models import get_log, gen_log
from apps.plan.models import TestPlan
from apps.task.models import TestTask
from apps.user.middleware.rolecontrol import RoleControl
from utils.util_add_id import gen_next_id

import logging
logger = logging.getLogger('django')


class FileView(APIView):
    # create file
    @staticmethod
    @RoleControl
    def post(request, *args, **kwargs):
        file_type = request.POST.get('type')
        plan_id = request.POST.get('plan_id')
        task_id = request.POST.get('task_id')
        files = request.FILES.getlist('files')

        model_object = None
        path_head = None
        if file_type == 'plan_statement':
            model_object = TestPlan.objects.filter(id=plan_id, delete=False)
            if not model_object:
                logger.error("测试计划已删除或不存在")
                return HttpResponse(status=404, content='测试计划已删除或不存在')
            model_object = model_object[0]
            path_head = PLAN_ROOT

        elif file_type == 'task_statement':
            model_object = TestTask.objects.filter(id=task_id, delete=False)
            if not model_object:
                logger.error("测试任务已删除或不存在")
                return HttpResponse(status=404, content='测试任务已删除或不存在')
            model_object = model_object[0]
            path_head = TASK_ROOT

        # step7：创建文件的数据库字段
        fids = ''
        file_paths = []
        for file in files:
            try:
                create_time = update_time = datetime.datetime.now()
                file_dir = path_head + "/" + model_object.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()
            except:
                logger.error("文件上传失败")
                return HttpResponse(status=500, content="文件上传失败")

            if not FileManager.objects.last():
                id_file = "TestLaboratory_V1_File_1"
            else:
                id_file = gen_next_id(FileManager.objects.order_by('create_time').last().id)

            try:
                file_new = FileManager.objects.create(id=id_file, category=file_type,
                                                      path=model_object.id+ "/" + str(create_time) + "/" + file.name,
                                                      create_time=create_time,
                                                      update_time=update_time)
            except:
                logger.error("文件路径写入数据库失败")
                return HttpResponse(status=500, content="文件路径写入数据库失败")
            file_paths.append(PLAN_ROOT + file_new.path)
            fids += id_file + "&&"
        fids = fids[:-2]
        model_object.statement_file += ("&&" + fids)
        model_object.save()
        executor, action, method = get_log(request)
        gen_log(action, "说明文档", model_object.title, method, executor)
        return HttpResponse(status=200, content='新建文件成功')

    # create file
    @staticmethod
    @RoleControl
    def delete(request, *args, **kwargs):
        file_id = request.GET.get('file_id')
        file_type = request.GET.get('type')
        plan_id = request.GET.get('plan_id')
        task_id = request.GET.get('task_id')

        model_object = None
        if file_type == 'plan_statement':
            model_object = TestPlan.objects.filter(id=plan_id, delete=False)
            if not model_object:
                logger.error("测试计划已删除或不存在")
                return HttpResponse(status=404, content='测试计划已删除或不存在')
            model_object = model_object[0]

        elif file_type == 'task_statement':
            model_object = TestTask.objects.filter(id=task_id, delete=False)
            if not model_object:
                logger.error("测试任务已删除或不存在")
                return HttpResponse(status=404, content='测试任务已删除或不存在')
            model_object = model_object[0]

        file = FileManager.objects.filter(id=file_id, delete=False)
        if not file:
            logger.error("文件已删除不存在")
            return HttpResponse(status=404, content='文件已删除不存在')
        file = file[0]
        file_list = model_object.statement_file.split('&&')
        if file.id not in file_list:
            logger.error("该文件不存在于测试计划或测试任务中，数据库错误")
            return HttpResponse(status=404, content='该文件不存在于测试计划或测试任务中，数据库错误')
        file_list.remove(file.id)
        file_str = ''
        for file_name in file_list:
            file_str += file_name + "&&"
        file_str = file_str[:-2]
        model_object.statement_file = file_str
        model_object.save()
        executor, action, method = get_log(request)
        gen_log(action, "说明文档", file.path.split('/')[-1], method, executor)
        return HttpResponse(status=200, content='删除成功')