# -*- coding: utf-8 -*-

from __future__ import division

import json

from django.conf import settings
from django.db import transaction
from django_logit import logit
from django_query import get_query_value
from django_response import response
from json_response import JsonResponse
from paginator import pagination
from TimeConvert import TimeConvert as tc

from mch.models import ModelInfo
from tenancy.models import TenancyShotInfo, TenancyShotRequestInfo
from utils.error.errno_utils import TenancyStatusCode
from utils.kuaidi.subscribe import KuaiDi100 as KuaiDi100Subscribe


@logit
def shot_list(request):
    shots = TenancyShotInfo.objects.values_list('model_id', flat=True).filter(tenancy_status=0, status=True).order_by('model_id')
    shots = set(shots)
    shots = ModelInfo.objects.filter(model_id__in=shots)
    shots = [shot.admindata for shot in shots]

    return response(data={
        'shots': shots,
    })


@logit
def shot_detail(request):
    shot_id = request.POST.get('shot_id', '')

    try:
        shot = TenancyShotInfo.objects.get(shot_id=shot_id, status=True)
    except TenancyShotInfo.DoesNotExist:
        return response(TenancyStatusCode.TENANCY_SHOT_NOT_FOUND)

    return response(data={
        'shot': shot.data,
    })


@logit
def shot_request_create(request):
    model_id = request.POST.get('model_id', '')
    user_id = request.POST.get('user_id', '')
    name = request.POST.get('name', '')
    phone = request.POST.get('phone', '')
    postcode = request.POST.get('postcode', '')
    location = request.POST.get('location', '')
    purpose = request.POST.get('purpose', '')
    return_date = tc.to_date(request.POST.get('return_date', '') or settings.DEFAULT_START_DATE)

    req = TenancyShotRequestInfo.objects.create(
        model_id=model_id,
        user_id=user_id,
        name=name,
        phone=phone,
        postcode=postcode,
        location=location,
        purpose=purpose,
        return_date=return_date,
    )

    return response(data={
        'req': req.data,
    })


@logit
def shot_request_list(request):
    user_id = request.POST.get('user_id', '')
    page = request.POST.get('page', 1)
    num = request.POST.get('num', 20)

    reqs = TenancyShotRequestInfo.objects.filter(user_id=user_id, status=True).order_by('-pk')
    reqs = [req.data for req in reqs]
    reqs, left = pagination(reqs, page, num)

    return response(data={
        'reqs': reqs,
        'left': left,
    })


@logit
def shot_request_detail(request):
    req_id = request.POST.get('req_id') or request.POST.get('request_id')
    user_id = request.POST.get('user_id', '')

    try:
        req = TenancyShotRequestInfo.objects.get(request_id=req_id, user_id=user_id, status=True)
    except TenancyShotRequestInfo.DoesNotExist:
        return response(TenancyStatusCode.TENANCY_SHOT_REQUEST_NOT_FOUND)

    return response(data={
        'req': req.data,
    })


@logit
@transaction.atomic
def shot_request_signed(request):
    req_id = request.POST.get('req_id') or request.POST.get('request_id')
    user_id = request.POST.get('user_id', '')
    signed_images = get_query_value(request, 'signed_images', val_cast_type='listjson')

    try:
        req = TenancyShotRequestInfo.objects.select_for_update().get(request_id=req_id, user_id=user_id, status=True)
    except TenancyShotRequestInfo.DoesNotExist:
        return response(TenancyStatusCode.TENANCY_SHOT_REQUEST_NOT_FOUND)

    req.tracking_signed_images = signed_images
    req.request_status = TenancyShotRequestInfo.TENANCY_TRACKING_SEND_SIGNED
    request_status_at = req.request_status_at
    request_status_at[TenancyShotRequestInfo.TENANCY_TRACKING_SEND_SIGNED] = tc.utc_string()
    req.request_status_at = request_status_at
    req.save()

    return response(data={
        'req': req.data,
    })


@logit
@transaction.atomic
def shot_request_sendback(request):
    req_id = request.POST.get('req_id') or request.POST.get('request_id')
    user_id = request.POST.get('user_id', '')
    back_express_com = request.POST.get('back_express_com', '')
    back_express_name = request.POST.get('back_express_name', '')
    back_tracking_number = request.POST.get('back_tracking_number', '')

    try:
        req = TenancyShotRequestInfo.objects.select_for_update().get(request_id=req_id, user_id=user_id, status=True)
    except TenancyShotRequestInfo.DoesNotExist:
        return response(TenancyStatusCode.TENANCY_SHOT_REQUEST_NOT_FOUND)

    old_back_tracking_number = req.back_tracking_number

    req.back_express_com = back_express_com
    req.back_express_name = back_express_name
    req.back_tracking_number = back_tracking_number
    req.request_status = TenancyShotRequestInfo.TENANCY_TRACKING_BACK
    request_status_at = req.request_status_at
    request_status_at[TenancyShotRequestInfo.TENANCY_TRACKING_BACK] = tc.utc_string()
    req.request_status_at = request_status_at
    req.save()

    if back_tracking_number and back_tracking_number != old_back_tracking_number:
        tenancy_tracking_info_subscribe(req, 'back_tracking')

    return response(data={
        'req': req.data,
    })


def is_tenancy_tracking_signed(tracking_info):
    if not tracking_info:
        return False
    items = tracking_info.get('data', [])
    if not items:
        return False
    return items[0].get('status') == u'签收'


@transaction.atomic
def tenancy_tracking_info_update(req, type_, tracking_info):
    is_tracking_signed = is_tenancy_tracking_signed(tracking_info)
    if type_ == 'tracking':
        req.tracking_info = tracking_info
        req.tracking_signed = is_tracking_signed
    else:
        req.back_tracking_info = tracking_info
        req.back_tracking_signed = is_tracking_signed
    req.save()


def tenancy_tracking_info_subscribe(req, type_):
    callbackurl = '{}/api/tenancy/tracking/info/callback?reqpk={}&type={}'.format(settings.DOMAIN, req.pk, type_)
    if type_ == 'tracking':
        express_com = req.express_com
        tracking_number = req.tracking_number
        phone = req.phone
    else:
        express_com = req.back_express_com
        tracking_number = req.back_tracking_number
        phone = req.phone
    return KuaiDi100Subscribe().submit(express_com, tracking_number, phone=phone, callbackurl=callbackurl)


@logit(body=True)
@transaction.atomic
def tenancy_tracking_info_callback(request):
    reqpk = request.GET.get('reqpk', '')
    type_ = request.GET.get('type', 'tracking')  # tracking / back_tracking

    param = request.POST.get('param', '')

    if not param:
        return response(message='Not Param')

    try:
        callback_json = json.loads(param)
    except Exception:
        return response(message='JSON Loads Error')

    tracking_info = callback_json.get('lastResult', {})

    if not tracking_info:
        return response(message='Not Tracking Info')

    try:
        req = TenancyShotRequestInfo.objects.select_for_update().get(pk=reqpk, status=True)
    except TenancyShotRequestInfo.DoesNotExist:
        return response(TenancyStatusCode.TENANCY_SHOT_REQUEST_NOT_FOUND)

    tenancy_tracking_info_update(req, type_, tracking_info)

    return JsonResponse({
        'result': True,
        'returnCode': '200',
        'message': '成功'
    }, safe=False)