"""
Forms for HR 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

from .models import Attendance, Schedule, Holiday, LeaveRequest


class AttendanceForm(forms.ModelForm):
    """Form for creating/updating attendance records."""
    
    class Meta:
        model = Attendance
        fields = [
            'employee',
            'date',
            'check_in',
            'check_out',
            'status',
            'notes',
        ]
        widgets = {
            'employee': forms.Select(attrs={'class': 'form-select select2', 'data-placeholder': 'Select employee'}),
            'date': forms.DateInput(attrs={'class': 'form-control', 'type': 'date'}),
            'check_in': forms.TimeInput(attrs={'class': 'form-control', 'type': 'time'}),
            'check_out': forms.TimeInput(attrs={'class': 'form-control', 'type': 'time'}),
            'status': forms.Select(attrs={'class': 'form-control'}),
            'notes': forms.Textarea(attrs={'class': 'form-control', 'rows': 3}),
        }
    
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_method = 'post'
        self.helper.layout = Layout(
            Fieldset(
                _('Attendance Information'),
                Row(
                    Column('employee', css_class='form-group col-md-6 mb-0'),
                    Column('date', css_class='form-group col-md-6 mb-0'),
                    css_class='form-row'
                ),
                Row(
                    Column('check_in', css_class='form-group col-md-4 mb-0'),
                    Column('check_out', css_class='form-group col-md-4 mb-0'),
                    Column('status', css_class='form-group col-md-4 mb-0'),
                    css_class='form-row'
                ),
                'notes',
            ),
            Submit('submit', _('Save Attendance'), css_class='btn btn-primary mt-3')
        )


class ScheduleForm(forms.ModelForm):
    """Form for creating/updating work schedules."""
    
    class Meta:
        model = Schedule
        fields = [
            'employee',
            'day_of_week',
            'start_time',
            'end_time',
            'is_active',
        ]
        widgets = {
            'employee': forms.Select(attrs={'class': 'form-select select2', 'data-placeholder': 'Select employee'}),
            'day_of_week': forms.Select(attrs={'class': 'form-control'}),
            'start_time': forms.TimeInput(attrs={'class': 'form-control', 'type': 'time'}),
            'end_time': forms.TimeInput(attrs={'class': 'form-control', 'type': 'time'}),
            '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(
                _('Schedule Information'),
                Row(
                    Column('employee', css_class='form-group col-md-6 mb-0'),
                    Column('day_of_week', css_class='form-group col-md-6 mb-0'),
                    css_class='form-row'
                ),
                Row(
                    Column('start_time', css_class='form-group col-md-5 mb-0'),
                    Column('end_time', css_class='form-group col-md-5 mb-0'),
                    Column('is_active', css_class='form-group col-md-2 mb-0'),
                    css_class='form-row'
                ),
            ),
            Submit('submit', _('Save Schedule'), css_class='btn btn-primary mt-3')
        )


class HolidayForm(forms.ModelForm):
    """Form for creating/updating holidays."""
    
    class Meta:
        model = Holiday
        fields = [
            'name',
            'date',
            'is_recurring',
            'description',
        ]
        widgets = {
            'name': forms.TextInput(attrs={'class': 'form-control'}),
            'date': forms.DateInput(attrs={'class': 'form-control', 'type': 'date'}),
            'is_recurring': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
            'description': forms.Textarea(attrs={'class': 'form-control', 'rows': 3}),
        }
    
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_method = 'post'
        self.helper.layout = Layout(
            Fieldset(
                _('Holiday Information'),
                Row(
                    Column('name', css_class='form-group col-md-8 mb-0'),
                    Column('date', css_class='form-group col-md-4 mb-0'),
                    css_class='form-row'
                ),
                'is_recurring',
                'description',
            ),
            Submit('submit', _('Save Holiday'), css_class='btn btn-primary mt-3')
        )


class LeaveRequestForm(forms.ModelForm):
    """Form for creating/updating leave requests."""
    
    class Meta:
        model = LeaveRequest
        fields = [
            'leave_type',
            'start_date',
            'end_date',
            'reason',
            'attachment',
        ]
        widgets = {
            'leave_type': forms.Select(attrs={'class': 'form-select'}),
            'start_date': forms.DateInput(attrs={'class': 'form-control', 'type': 'date'}),
            'end_date': forms.DateInput(attrs={'class': 'form-control', 'type': 'date'}),
            'reason': forms.Textarea(attrs={'class': 'form-control', 'rows': 4}),
            'attachment': forms.FileInput(attrs={'class': 'form-control'}),
        }