from django import forms
from django.contrib.auth.forms import AuthenticationForm
from django.core.exceptions import ValidationError
from django.utils.translation import gettext_lazy as _
from orchestra.utils.python import random_ascii
from django.forms.widgets import HiddenInput

from django.contrib.auth.hashers import make_password

from orchestra.contrib.domains.models import Domain, Record
from orchestra.contrib.mailboxes.models import Address, Mailbox
from orchestra.contrib.systemusers.models import WebappUsers, SystemUser
from orchestra.contrib.saas.models import SaaS
from orchestra.contrib.musician.validators import ValidateZoneMixin

from . import api


class LoginForm(AuthenticationForm):

    def clean(self):
        username = self.cleaned_data.get('username')
        password = self.cleaned_data.get('password')

        if username is not None and password:
            orchestra = api.Orchestra(self.request, username=username, password=password)

            if orchestra.user is None:
                raise self.get_invalid_login_error()
            else:
                self.username = username
                self.user = orchestra.user

        return self.cleaned_data

class ChangePasswordForm(forms.ModelForm):
    error_messages = {
        'password_mismatch': _('The two password fields didn’t match.'),
    }
    password = forms.CharField(
        label=_("Password"),
        strip=False,
        widget=forms.PasswordInput(attrs={'autocomplete': 'new-password'}),
    )
    password2 = forms.CharField(
        label=_("Password confirmation"),
        widget=forms.PasswordInput(attrs={'autocomplete': 'new-password'}),
        strip=False,
        help_text=_("Enter the same password as before, for verification."),
    )

    class Meta:
        fields = ("password",)
        model = WebappUsers

    def clean_password2(self):
        password = self.cleaned_data.get("password")
        password2 = self.cleaned_data.get("password2")
        if password and password2 and password != password2:
            raise ValidationError(
                self.error_messages['password_mismatch'],
                code='password_mismatch',
            )
        return password2
    
    def clean(self):
        cleaned_data = super().clean()
        password = cleaned_data.get("password")
        cleaned_data['password'] = make_password(password)
        return cleaned_data
    

class MailForm(forms.ModelForm):
    class Meta:
        model = Address
        fields = ("name", "domain", "mailboxes", "forward")

    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop('user')
        super().__init__(*args, **kwargs)
        self.fields['domain'].queryset = Domain.objects.filter(account=self.user)
        self.fields['mailboxes'].queryset = Mailbox.objects.filter(account=self.user)

    def clean(self):
        cleaned_data = super().clean()
        if not cleaned_data.get('mailboxes') and not cleaned_data.get('forward'):
            raise ValidationError("A mailbox or forward address should be provided.")
        return cleaned_data

    def save(self, commit=True):
        instance = super().save(commit=False)
        instance.account = self.user
        if commit:
            super().save(commit=True)
        return instance


class MailboxChangePasswordForm(ChangePasswordForm):
 
    class Meta:
        fields = ("password",)
        model = Mailbox

 
class MailboxCreateForm(forms.ModelForm):
    error_messages = {
        'password_mismatch': _('The two password fields didn’t match.'),
    }
    name = forms.CharField()
    password = forms.CharField(
        label=_("Password"),
        strip=False,
        widget=forms.PasswordInput(attrs={'autocomplete': 'new-password'}),
    )
    password2 = forms.CharField(
        label=_("Password confirmation"),
        widget=forms.PasswordInput(attrs={'autocomplete': 'new-password'}),
        strip=False,
        help_text=_("Enter the same password as before, for verification."),
    )
    addresses = forms.ModelMultipleChoiceField(queryset=Address.objects.none(), required=False)

    class Meta:
        fields = ("name", "password", "password2", "addresses")
        model = Mailbox

    def __init__(self, *args, **kwargs):
        user = kwargs.pop('user')
        super().__init__(*args, **kwargs)
        self.fields['addresses'].queryset = Address.objects.filter(account=user)
        self.user = user

    def clean_password2(self):
        password = self.cleaned_data.get("password")
        password2 = self.cleaned_data.get("password2")
        if password and password2 and password != password2:
            raise ValidationError(
                self.error_messages['password_mismatch'],
                code='password_mismatch',
            )
        return  password
    
    def clean(self):
        cleaned_data = super().clean()
        password = cleaned_data.get("password")
        cleaned_data['password'] = make_password(password)
        return cleaned_data

    def save(self, commit=True):
        instance = super().save(commit=False)
        instance.account = self.user
        if commit:
            super().save(commit=True)
        return instance


class MailboxUpdateForm(forms.ModelForm):
    addresses = forms.MultipleChoiceField(required=False)

    class Meta:
        fields = ('addresses',)
        model = Mailbox


class MailboxSearchForm(forms.Form):
    name = forms.CharField(required=False)
    address = forms.CharField(required=False)

class RecordCreateForm(ValidateZoneMixin, forms.ModelForm):

    class Meta:
        model = Record
        fields = ("ttl", "type", "value")

    def __init__(self, *args, **kwargs):
        self.domain = kwargs.pop('domain')
        super().__init__(*args, **kwargs)

    def save(self, commit=True):
        instance = super().save(commit=False)
        instance.domain = self.domain
        if commit:
            super().save(commit=True)
        return instance


class RecordUpdateForm(ValidateZoneMixin, forms.ModelForm):

    class Meta:
        model = Record
        fields = ("ttl", "type", "value")

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.domain = self.instance.domain


class WebappUsersChangePasswordForm(ChangePasswordForm):
    class Meta:
        fields = ("password",)
        model = WebappUsers

class SystemUsersChangePasswordForm(ChangePasswordForm):
    class Meta:
        fields = ("password",)
        model = SystemUser

from orchestra.forms.widgets import SpanWidget
from orchestra.forms import widgets
from django.utils.safestring import mark_safe
from rest_framework import serializers
class SaasUpdateForm(forms.ModelForm):
    site_url = forms.CharField(label=_("Site URL"), widget=SpanWidget(), required=False)

    # dos campos para wordpress
    blog_id = forms.IntegerField(label=("Blog ID"), widget=widgets.SpanWidget, required=False,
        help_text=_("ID of this blog used by WordPress, the only attribute that doesn't change."))
    email = forms.EmailField(label=_("Email"),
            help_text=_("A new user will be created if the above email address is not in the database.<br>"
                        "The username and password will be mailed to this email address."))

    class Meta:
        model = SaaS
        fields = ("is_active", "service", "name", "data", "custom_url")

    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop('user')
        super().__init__(*args, **kwargs)
        self.fields['name'].widget.attrs['readonly'] = True
        self.fields['site_url'].widget.attrs['readonly'] = True
        self.fields['email'].widget.attrs['readonly'] = True
        self.fields['blog_id'].widget.attrs['readonly'] = True
        self.fields['service'].widget = HiddenInput()
        self.fields['data'].widget = HiddenInput()
        self.fields["custom_url"].widget = HiddenInput()
  
        # asignar valor al field site_url
        site_domain = self.instance.get_site_domain()
        context = {
        'site_name': '&lt;site_name&gt;',
        'name': '&lt;site_name&gt;',
        }
        site_domain = site_domain % context
        if '&lt;site_name&gt;' in site_domain:
            site_link = site_domain
        else:
            site_link = '<a href="http://%s">%s</a>' % (site_domain, site_domain)
        self.fields['site_url'].widget.display = site_link

        if self.instance:
            if self.instance.pk:
                self.fields['data'].required = False

        if self.instance.service == 'nextcloud':
            self.fields["email"].widget = HiddenInput()
            self.fields["blog_id"].widget = HiddenInput()   
            self.fields["email"].required = False


        if self.instance.service == 'wordpress':           
            admin_url = 'http://%s/wp-admin/' % self.instance.get_site_domain()
            help_text = 'Admin URL: <a href="{0}">{0}</a>'.format(admin_url)
            self.fields['site_url'].help_text = mark_safe(help_text)

            if self.instance:
                for field in self.declared_fields:
                    initial = self.fields[field].initial
                    self.fields[field].initial = self.instance.data.get(field, initial)


    def clean(self):
        super().clean()
        data = {}
        # Update data fields
        for field in self.declared_fields:
            try:
                data[field] = self.cleaned_data[field]
            except KeyError:
                data[field] = self.data[field]
        # Keep old data fields
        for field, value in self.instance.data.items():
            if field not in data:
                try:
                    data[field] = self.cleaned_data[field]
                except KeyError:
                    data[field] = value
        self.cleaned_data['data'] = data


class NextcloudChangePasswordForm(ChangePasswordForm):
    class Meta:
        fields = ("password",)
        model = SaaS

    def __init__(self, *args, **kwargs):
        super(NextcloudChangePasswordForm, self).__init__(*args, **kwargs)
        self.fields['password'].help_text = _("Suggestion: %s") % random_ascii(20)

    def clean_password(self):
        password = self.cleaned_data.get("password")
        self.fields['password'] = password
        self.instance.set_password(password)