# Create your views here.

from django.core import serializers
from django.http import HttpResponse
from django.forms.models import modelformset_factory, inlineformset_factory
from django.template import RequestContext

from django.shortcuts import render_to_response, get_object_or_404
from running.models import Result, User
import json

def user_index(request, user_name):
    user = get_object_or_404(User, name=user_name)
    ResultFormSet = modelformset_factory(Result, fields=('date', 'distance', 'time'), exclude=('user'), extra=3, can_delete=True)
    if request.method == 'POST':
       formset = ResultFormSet(request.POST, request.FILES)
       if formset.is_valid():
         instances = formset.save(commit=False)
         for instance in instances:
           instance.user = user
           instance.save()

    result_list = Result.objects.filter(user=user)
    formset = ResultFormSet(queryset=result_list)
    return render_to_response('user_index.html', { 'user' : user, 'formset' : formset }, context_instance=RequestContext(request))

def index(request):
    user_list = User.objects.all()
    return render_to_response('index.html', { 'user_list' : user_list })

def zoom(request):
    result_list = Result.objects.values_list('date', 'distance')
    json_list = []
    # Output date object in epoch milliseconds as JavaScript find this easy to use.
    for (date,distance) in result_list:
        json_list.append({'x': int(date.strftime("%s")) * 1000, 'y' : float(distance)})

    data = json.dumps(json_list, ensure_ascii=False, indent=2)
    return HttpResponse(data,mimetype="application/json")

def json_user_column(request,user_id):
    user = get_object_or_404(User, pk=user_id)
    result_list = Result.objects.filter(user=user).values_list('date', 'distance')

    total_list = {}
    for (date,distance) in result_list:
       key = date.strftime("%Y-%m")
       if total_list.has_key(key):
         total_list[key] += distance
       else:
         total_list[key] = distance

    json_object = { 'label' : [] , 'data' : [] }
    for (date,distance) in total_list.iteritems():
       json_object['label'].append(date)
       json_object['data'].append(float(distance))
    data = json.dumps(json_object, ensure_ascii=False, indent=2)
    return HttpResponse(data,mimetype="application/json")

def json_user_total(request,user_id):
    result_list = Result.objects.values_list('date', 'distance')
    json_list = []
    distance_total = 0.0
    # Output date object in epoch milliseconds as JavaScript find this easy to use.
    for (date,distance) in result_list:
        distance_total += float(distance)
        json_list.append({'x': int(date.strftime("%s")) * 1000, 'y' : distance_total})
    data = json.dumps(json_list, ensure_ascii=False, indent=2)
    return HttpResponse(data,mimetype="application/json")