"""
Forms for integrations app.
"""

from django import forms
from django.utils.translation import gettext_lazy as _
from crispy_forms.helper import FormHelper
from crispy_forms.layout import Layout, Fieldset, Row, Column, Submit, HTML

from .models import ExternalOrder, PayerContract, ZatcaCredential


class ExternalOrderForm(forms.ModelForm):
    """Form for creating/updating external orders (lab/radiology)."""
    
    class Meta:
        model = ExternalOrder
        fields = [
            'patient',
            'order_type',
            'order_details',
            'status',
            'result_url',
            'result_data',
            'ordered_by',
        ]
        widgets = {
            'patient': forms.Select(attrs={'class': 'form-select select2', 'data-placeholder': 'Select patient'}),
            'order_type': forms.Select(attrs={'class': 'form-control'}),
            'order_details': forms.Textarea(attrs={'class': 'form-control', 'rows': 4}),
            'status': forms.Select(attrs={'class': 'form-control'}),
            'result_url': forms.URLInput(attrs={'class': 'form-control'}),
            'result_data': forms.Textarea(attrs={'class': 'form-control', 'rows': 4}),
            'ordered_by': forms.Select(attrs={'class': 'form-select select2', 'data-placeholder': 'Select provider'}),
        }
    
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_method = 'post'
        self.helper.layout = Layout(
            Fieldset(
                _('Order Information'),
                Row(
                    Column('patient', css_class='form-group col-md-6 mb-0'),
                    Column('order_type', css_class='form-group col-md-6 mb-0'),
                    css_class='form-row'
                ),
                'order_details',
                Row(
                    Column('status', css_class='form-group col-md-6 mb-0'),
                    Column('ordered_by', css_class='form-group col-md-6 mb-0'),
                    css_class='form-row'
                ),
            ),
            Fieldset(
                _('Results'),
                'result_url',
                'result_data',
                css_class='mt-3'
            ),
            Submit('submit', _('Save Order'), css_class='btn btn-primary mt-3')
        )


class PayerContractForm(forms.ModelForm):
    """Form for creating/updating payer contracts."""
    
    class Meta:
        model = PayerContract
        fields = [
            'payer_code',
            'payer_name',
            'credentials',
            'endpoints',
            'supports_eligibility',
            'supports_prior_auth',
            'supports_claims',
            'is_active',
        ]
        widgets = {
            'payer_code': forms.TextInput(attrs={'class': 'form-control'}),
            'payer_name': forms.TextInput(attrs={'class': 'form-control'}),
            'credentials': forms.Textarea(attrs={'class': 'form-control', 'rows': 4}),
            'endpoints': forms.Textarea(attrs={'class': 'form-control', 'rows': 4}),
            'supports_eligibility': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
            'supports_prior_auth': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
            'supports_claims': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
            'is_active': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
        }
    
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_method = 'post'
        self.helper.layout = Layout(
            Fieldset(
                _('Payer Information'),
                Row(
                    Column('payer_code', css_class='form-group col-md-6 mb-0'),
                    Column('payer_name', css_class='form-group col-md-6 mb-0'),
                    css_class='form-row'
                ),
            ),
            Fieldset(
                _('Configuration'),
                'credentials',
                'endpoints',
                css_class='mt-3'
            ),
            Fieldset(
                _('Capabilities'),
                Row(
                    Column('supports_eligibility', css_class='form-group col-md-4 mb-0'),
                    Column('supports_prior_auth', css_class='form-group col-md-4 mb-0'),
                    Column('supports_claims', css_class='form-group col-md-4 mb-0'),
                    css_class='form-row'
                ),
                'is_active',
                css_class='mt-3'
            ),
            Submit('submit', _('Save Payer Contract'), css_class='btn btn-primary mt-3')
        )


class ZatcaCredentialForm(forms.ModelForm):
    """Form for creating/updating ZATCA credentials."""
    
    class Meta:
        model = ZatcaCredential
        fields = [
            'environment',
            'csid',
            'certificate',
            'private_key',
            'is_active',
            'expires_at',
        ]
        widgets = {
            'environment': forms.Select(attrs={'class': 'form-control'}),
            'csid': forms.Textarea(attrs={'class': 'form-control', 'rows': 3}),
            'certificate': forms.Textarea(attrs={'class': 'form-control', 'rows': 5}),
            'private_key': forms.Textarea(attrs={'class': 'form-control', 'rows': 5}),
            'is_active': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
            'expires_at': forms.DateTimeInput(attrs={'class': 'form-control', 'type': 'datetime-local'}),
        }
    
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_method = 'post'
        self.helper.layout = Layout(
            Fieldset(
                _('Environment'),
                Row(
                    Column('environment', css_class='form-group col-md-6 mb-0'),
                    Column('expires_at', css_class='form-group col-md-6 mb-0'),
                    css_class='form-row'
                ),
                'is_active',
            ),
            Fieldset(
                _('Credentials'),
                HTML('<div class="alert alert-warning">{}</div>'.format(_('Keep these credentials secure!'))),
                'csid',
                'certificate',
                'private_key',
                css_class='mt-3'
            ),
            Submit('submit', _('Save Credential'), css_class='btn btn-primary mt-3')
        )