"""This module contains the views for the project's proposal 

funded by NME through ICT.

"""

__authors__ = [

  '"Madhusudan.C.S" <madhusudancs@gmail.com>',

]

import os

import time

from django.core.urlresolvers import reverse

from django.http import HttpResponseRedirect

from django.shortcuts import render_to_response, get_object_or_404

from projrev.models import Project

from projrev.models import Proposal

from projrev.views.helpers import forms as projrev_forms

def getMicr(request):

  """View to get MICR Code from the user.

  """

  if request.method == 'POST':

    post_params = request.POST

    submit = post_params.get('submit')

    if submit == 'New Proposal':

      return HttpResponseRedirect(

            reverse('app.projrev.views.proposal.submit'))

    else:

      micr_code = request.POST.get('micr_code')

      if micr_code:

        try:

          Project.objects.get(micr_code=micr_code)

        except Project.DoesNotExist:

          if (submit == 'Edit Proposal for MICR Code' or 

              submit == 'Withdraw Proposal for MICR Code'):

            template = 'projrev/proposal/get_micr.html'

            context = {

                'error': True,

                }

            return render_to_response(template, context)

        else:

          if submit == 'Edit Proposal for MICR Code':

            return HttpResponseRedirect(

                reverse('app.projrev.views.proposal.submit', 

                        args=(micr_code, )))

          elif submit == 'Withdraw Proposal for MICR Code':

            return HttpResponseRedirect(

                reverse('app.projrev.views.proposal.withdraw', 

                        args=(micr_code, )))

  else:

    template = 'projrev/proposal/get_micr.html'

    context = {}

    return render_to_response(template, context)

def submit(request, micr_code=None):

  """View for proposal submission.

  """

  if request.method == 'POST':

    return submitPost(request, micr_code)

  else:

    return submitGet(request, micr_code)

def submitPost(request, micr_code=None):

  """Handles POST request for the submitted proposal form. 

  """

  prop_form = projrev_forms.ProposalForm(request.POST, request.FILES)

  project = None

  proposal = None

  if prop_form.is_valid():

    cleaned_data = prop_form.cleaned_data

    # Generate MICR code

    cleaned_data['micr_code'] = '%s%s%s%d' % (

        cleaned_data['state'], cleaned_data['district'],

        cleaned_data['line_item'], 

        int(time.time() * 1000) % 1000000000)

    cleaned_data['line_item'] = Project.getLineItem(cleaned_data['line_item'])

    cleaned_data['state'] = Project.getState(cleaned_data['state'])

    cleaned_data['district'] = Project.getDistrict(cleaned_data['district'])

    prop_form.cleaned_data = cleaned_data

    # If the form is valid create a new project or update the project

    # if it already exists from the form.

    project = prop_form.save()

    project.status = 'new'

    project.micr_code = cleaned_data['micr_code']

    micr_code = cleaned_data['micr_code']

    project.save()

    # Create a proposal for the project.

    proposal = project.proposal_set.create(

        document=prop_form.cleaned_data['document'], rev_num = 0)

    proposal.save()

    return HttpResponseRedirect(

        reverse('app.projrev.views.proposal.submit', args=(micr_code,)))

  return HttpResponseRedirect('')

def submitGet(request, micr_code=None):

  """Handles GET request for the submission of proposal form.

  """

  context = {}

  project = None

  if micr_code:

    project = Project.objects.get(micr_code=micr_code)

  if project:

    initial_vals = {

        'line_item': Project.getLineItemCode(project.line_item),

        'state': Project.getStateCode(project.state),

        'district': Project.getDistrictCode(project.district),

        }

    prop_form = projrev_forms.ProposalForm(

        initial=initial_vals, instance=project)

    proposal_path = str(project.proposal_set.all()[0].document)

    proposal_name = proposal_path.split('/')[-1]

    context['proposal_path'] = proposal_path

    context['proposal_name'] = proposal_name

    if 'HTTP_REFERER' in request.META:

      referer = request.META['HTTP_REFERER'].split('/')

      if referer[-1]:

        ref = referer[-1]

      else:

        ref = referer[-2]

      if ref == 'create':

        context['created_now'] = True

    context['micr_code'] = project.micr_code

  else:

    prop_form = projrev_forms.ProposalForm()

  context['form'] = prop_form

  template = 'projrev/proposal/submit.html'

  return render_to_response(template, context)

def withdraw(request, micr_code=None):

  """View Method for withdrawal of proposal.

  """

  if micr_code:

    project = Project.objects.get(micr_code=micr_code)

    if project:

      project.status = 'invalid'

      project.save()

      context = {

          'withdrawn': True,

      }

  template = 'projrev/proposal/withdraw.html'

  return render_to_response(template, context)

def review(request, micr_code=None):

  """View for reviewing the proposal.

  """

  if request.method == 'POST':

    return reviewPost(request, micr_code)

  else:

    return reviewGet(request, micr_code)

def reviewPost(request, micr_code=None):

  """

  """

  rev_form = projrev_forms.ReviewForm(request.POST)

  if rev_form.is_valid():

    cleaned_data = rev_form.cleaned_data

    cleaned_data['project'] = Project.objects.get(micr_code=micr_code)

    # If the form is valid create a new project or update the project

    # if it already exists from the form.

    review = rev_form.save()

  return reviewGet(request, micr_code, rev_form)

def reviewGet(request, micr_code=None, rev_form=None):

  """

  """

  if not micr_code:

    template = 'projrev/proposal/list.html'

    context = {

        'projects': Project.objects.all(),

        'row_url': '/proposal/review/',

        }

    return render_to_response(template, context)

  if not rev_form:

    rev_form = projrev_forms.ReviewForm()

  proposal_path = str(Project.objects.get(

          micr_code=micr_code).proposal_set.all()[0].document)

  proposal_name = proposal_path.split('/')[-1]

  context = {

      'form': rev_form,

      'project': Project.objects.get(micr_code=micr_code),

      'proposal_path': proposal_path,

      'proposal_name': proposal_name,

      }

  template = 'projrev/proposal/review.html'

  return render_to_response(template, context)

def rank(request, micr_code=None):

  """

  """

  if request.method == 'POST':

    return rankPost(request, micr_code)

  else:

    return rankGet(request, micr_code)

def rankPost(request, micr_code=None):

  """

  """

  return rankGet(request, micr_code)

def rankGet(request, micr_code=None):

  """

  """

  if not micr_code:

    template = 'projrev/proposal/list.html'

    context = {

        'projects': Project.objects.all(),

        'row_url': '/proposal/rank/',

        }

    return render_to_response(template, context)

  projects = Project.objects.get(micr_code=micr_code)

  proposal_path = str(projects.proposal_set.all()[0].document)

  proposal_name = proposal_path.split('/')[-1]

  reviews = projects.review_set.all()

  review_score = [0] * 9

  for review in reviews:

    review_score[0] += review.attribute1

    review_score[1] += review.attribute2

    review_score[2] += review.attribute3

    review_score[3] += review.attribute4

    review_score[4] += review.attribute5

    review_score[5] += review.attribute6

    review_score[6] += review.attribute7

    review_score[7] += review.attribute8

    review_score[8] += review.attribute9

  total_score = sum(review_score)

  context = {

      'project': projects,

      'proposal_path': proposal_path,

      'proposal_name': proposal_name,

      'review_score': review_score,

      'total_score': total_score,

      }

  template = 'projrev/proposal/rank.html'

  return render_to_response(template, context)