from django.http import JsonResponse
from django.views.decorators.csrf import csrf_exempt
from django.forms import model_to_dict
from .model_handler import SettingHandler, CaseAttachmentHandler
from .models import CaseAttachment
from Info.model_handler import CompanyHandler, UserHandler
from Info.func import file_upload, get_file


def attachment_maxsize(request):        # 获取BOM附件大小限制
    company = CompanyHandler.get_by_id(request.session.get('company_id'))
    result = {'code': 1, 'content': None, 'msg': None}

    company_setting = SettingHandler.get_by_company(company)
    if company_setting:
        result['code'] = 0
        result['content'] = {
            'company_id': company_setting.company.id,
            'attachment_maxsize': company_setting.max_attachment_size
        }
    return JsonResponse(result)


def user_info(request):     # 从user数据中读取默认的姓名和手机号码
    user = UserHandler.get_by_id(request.session.get('user_id'))
    result = {'code': 1, 'content': None, 'msg': None}
    result['code'] = 0
    result['content'] = {
        'contact_name': user.name,
        'contact_mobile': user.mobile
    }
    return JsonResponse(result)


@csrf_exempt
def file(request):
    result = {'code': 1, 'content': None}
    company = CompanyHandler.get_by_id(request.session.get('company_id'))
    user = UserHandler.get_by_id(request.session.get('user_id'))

    if request.method == 'GET':
        return get_file(request)

    if request.method == 'POST':
        upload_result = file_upload(request, ['IT_service', 'case'])
        if upload_result['code'] == 0:
            case_attachment = CaseAttachment()
            case_attachment.company = company
            case_attachment.creator = user
            case_attachment.display_name = upload_result['target_file_name']
            case_attachment.url = upload_result['target_file_path'] + \
                upload_result['target_file_name']
            case_attachment.save()
            content = {'id': case_attachment.id, 'url': case_attachment.url,
                       'display_name': case_attachment.display_name}
            result['code'] = 0
            result['content'] = content
        else:
            result['content'] = '上传失败'
        return JsonResponse(result)

    if request.method == 'DELETE':
        post_data = eval(request.body)
        if CaseAttachmentHandler.del_by_id(post_data['delete_attachment_id']):
            result = {'code': 0, 'content': None}
        else:
            result = {'code': 1, 'content': '删除失败'}
        return JsonResponse(result)