from django.shortcuts import render_to_response
from django.template import RequestContext
from django.template.loader import render_to_string
from intranet.forms import ImgErrorList
from django import newforms as forms
from intranet.information.models import Company, Position
from django.core.mail import EmailMessage
from django.http import HttpResponseRedirect, Http404
from django.core.urlresolvers import reverse
from intranet.forms import YesNoBooleanField

### FORMS ###	

class FormBase(forms.Form):
	action_date = forms.CharField()
	other = forms.CharField()
	contact_name = forms.CharField()
	contact_phone = forms.CharField()
	contact_company = forms.ChoiceField(choices=[tuple(x.values()) for x in 
																Company.objects.all().values('id', 'company_name').order_by('company_name')])
	first_name = forms.CharField()
	last_name = forms.CharField()
	company = forms.ChoiceField(choices=[tuple(x.values()) for x in 
																Company.objects.all().values('id', 'company_name').order_by('company_name')])
	position = forms.ChoiceField(choices=[tuple(x.values()) for x in 
																Position.objects.all().values('id', 'title').order_by('title')])
	reporting_to = forms.CharField()
	replacement = forms.BooleanField(widget=forms.CheckboxInput(attrs={'class': 'check'}))
	replacing = forms.CharField(required=False)
	
	def clean(self):
		#raise Exception
		if self.cleaned_data['replacement'] == True and self.cleaned_data['replacing'] == '':
			raise forms.ValidationError(u'If the employee is replacing another then you must specify who is being replaced.')
		return self.cleaned_data			
																
class NewForm(FormBase):
	#previously_employed = forms.BooleanField(widget=forms.RadioSelect(renderer=InlineRadioRenderer, choices=yes_no_choices, attrs={'class': 'radio'}))
	previously_employed = forms.YesNoBooleanField()
																
class ChangeForm(FormBase):
	pay_change = forms.BooleanField(widget=forms.CheckboxInput(attrs={'class': 'check'}))
	new_position = forms.ChoiceField(choices=[tuple(x.values()) for x in 
																Position.objects.all().values('id', 'title').order_by('title')])
																
class TransferForm(FormBase):
	new_company = forms.ChoiceField(choices=[tuple(x.values()) for x in 
																Company.objects.all().values('id', 'company_name').order_by('company_name')])
	new_position = forms.ChoiceField(choices=[tuple(x.values()) for x in 
																Position.objects.all().values('id', 'title').order_by('title')])
	pay_change = forms.BooleanField(widget=forms.CheckboxInput(attrs={'class': 'check'}))
							
### VIEWS ###
	
def do_notification(request, action):
	if action == 'new':
		frm = NewForm
		template = 'early_notification/new_employee.html'
		title_string = 'New Employee'
		email_template = 'early_notification/new_employee_email.txt'
	elif action == 'change':
		frm = ChangeForm
		template = 'early_notification/change_position.html'
		title_string = 'Employee Position Change'
		email_template = 'early_notification/change_position_email.txt'
	elif action == 'transfer':
		frm = TransferForm
		template = 'early_notification/transfer.html'
		title_string = 'Employee Transfer'
		email_template = 'early_notification/transfer_email.txt'
	elif action == 'termination':		
		frm = FormBase
		template = 'early_notification/termination.html'
		title_string = 'Employee Termination'
		email_template = 'early_notification/termination_email.txt'
	else:
		raise Http404
		
	if request.method == 'POST':
		f = frm(request.POST, error_class=ImgErrorList)
		if f.is_valid():
			f.cleaned_data['company'] = Company.objects.get(pk=f.cleaned_data['company']).company_name
			f.cleaned_data['contact_company'] = Company.objects.get(pk=f.cleaned_data['contact_company']).company_name
			if 'new_company' in f.cleaned_data: f.cleaned_data['new_company'] = Company.objects.get(pk=f.cleaned_data['new_company']).company_name
			f.cleaned_data['position'] = Position.objects.get(pk=f.cleaned_data['position']).title
			if 'new_position' in f.cleaned_data:	f.cleaned_data['new_position'] = Position.objects.get(pk=f.cleaned_data['new_position']).title
			f.cleaned_data['replacement'] = 'Yes' if 'replacement' in f.cleaned_data else 'No'
			f.cleaned_data['previously_employed'] = 'Yes' if 'previously_employed' in f.cleaned_data else 'No'
			f.cleaned_data['pay_change'] = 'Yes' if 'pay_change' in f.cleaned_data else 'No'
			
			email_body = render_to_string(email_template, f.cleaned_data)
			arguments = {
				'subject': "Early Notification - %s - %s %s" % (title_string, f.cleaned_data['first_name'], f.cleaned_data['last_name']),
				'body': email_body,
				'from_email': 'intranet@cmv.com.au',
				'to': ['matt.magin@cmv.com.au'],
				'headers': {'Reply-To': 'matt.magin@cmv.com.au'}
				}
			email = EmailMessage(**arguments)
			email.send()
			return HttpResponseRedirect("/early_notification/thanks/")
	else:
		f = frm(error_class=ImgErrorList)
	return render_to_response(template, {'form': f}, context_instance=RequestContext(request))