from django.shortcuts import render_to_response, redirect

from django.http import HttpResponse

from sage_days.sdi.models import Registrant

from sage_days.sdi.forms import RegisterForm, SearchForm

def register(request):

    """ The user register page.

    """

    if request.method == "POST":

        form = RegisterForm(request.POST)

        if form.is_valid():

            form.save()

            return redirect("/sage_days/registration/complete")

        else:

            return render_to_response("register.html", {"form":form})

    else:

        form = RegisterForm()

        return render_to_response("register.html", {"form":form})

def reg_complete(request):

    """ Tell the registration is successful.

    """

    return render_to_response("reg_complete.html")

def list_stats(request):

    """ List the statiscs of registered participants.

    """

    if request.method == "POST":

        form = SearchForm(request.POST)

        if form.is_valid():

            data = form.cleaned_data

            need_workshop = data['need_for_python_workshop']

            db_query = "Registrant.objects.filter(need_for_python_workshop=%s)"%need_workshop

            topics_include, topics_exclude = data['topics_interested']

            for number in topics_include:

                db_query += '.filter(topics_interested__contains="%s")'%number

            for number in topics_exclude:

                db_query += '.exclude(topics_interested__contains="%s")'%number

            start_python, stop_python = data['knowledge_of_python']

            if start_python and stop_python:

                db_query += '.filter(knowledge_of_python__gte="%s")'%start_python

                db_query += '.filter(knowledge_of_python__lte="%s")'%stop_python

            elif start_python:

                db_query += '.filter(knowledge_of_python__exact="%s")'%start_python

            start_sage, stop_sage = data['knowledge_of_sage']

            if start_sage and stop_sage:

                db_query += '.filter(knowledge_of_sage__gte="%s")'%start_sage

                db_query += '.filter(knowledge_of_sage__lte="%s")'%stop_sage

            elif start_sage:

                db_query += '.filter(knowledge_of_sage__exact="%s")'%start_sage

            start_likeliness, stop_likeliness = data['likeliness_of_attending']

            if start_likeliness and stop_likeliness:

                db_query += '.filter(likeliness_of_attending__gte="%s")'%start_likeliness

                db_query += '.filter(likeliness_of_attending__lte="%s")'%stop_likeliness

            elif start_likeliness:

                db_query += '.filter(likeliness_of_attending__exact="%s")'%start_likeliness

            matches = eval(db_query)

            return render_to_response("list_stats.html", {"form":form, 'matches':matches})

        else:

            return render_to_response("list_stats.html", {"form":form})

    else:

        form = SearchForm()

        return render_to_response("list_stats.html", {"form":form})

def homepage(request):

        return render_to_response("index.html")