"""
Auction Forms
"""

from django import forms
from .models import Auction, Bid


class AuctionForm(forms.ModelForm):
    """Form für Auktion erstellen/bearbeiten"""
    
    class Meta:
        model = Auction
        fields = [
            'title', 'description', 'fursuit_type', 'character_description',
            'reference_images', 'special_requirements', 'starting_bid',
            'reserve_price', 'duration_days'
        ]
        widgets = {
            'title': forms.TextInput(attrs={
                'class': 'form-control',
                'placeholder': 'Auktion Titel'
            }),
            'description': forms.Textarea(attrs={
                'class': 'form-control',
                'rows': 4,
                'placeholder': 'Beschreibung der Auktion'
            }),
            'fursuit_type': forms.Select(attrs={
                'class': 'form-control'
            }),
            'character_description': forms.Textarea(attrs={
                'class': 'form-control',
                'rows': 6,
                'placeholder': 'Detaillierte Beschreibung des Charakters...'
            }),
            'special_requirements': forms.Textarea(attrs={
                'class': 'form-control',
                'rows': 3,
                'placeholder': 'Besondere Anforderungen (optional)'
            }),
            'starting_bid': forms.NumberInput(attrs={
                'class': 'form-control',
                'min': '0',
                'step': '0.01',
                'placeholder': '0.00'
            }),
            'reserve_price': forms.NumberInput(attrs={
                'class': 'form-control',
                'min': '0',
                'step': '0.01',
                'placeholder': 'Reserve Price (optional)'
            }),
            'duration_days': forms.NumberInput(attrs={
                'class': 'form-control',
                'min': '1',
                'max': '30',
                'placeholder': '7'
            }),
        }
    
    def clean_starting_bid(self):
        """Starting Bid validieren"""
        starting_bid = self.cleaned_data.get('starting_bid')
        if starting_bid <= 0:
            raise forms.ValidationError('Starting Bid muss größer als 0 sein')
        return starting_bid
    
    def clean_reserve_price(self):
        """Reserve Price validieren"""
        reserve_price = self.cleaned_data.get('reserve_price')
        starting_bid = self.cleaned_data.get('starting_bid')
        
        if reserve_price and reserve_price <= starting_bid:
            raise forms.ValidationError('Reserve Price muss höher als Starting Bid sein')
        
        return reserve_price
    
    def clean_duration_days(self):
        """Duration validieren"""
        duration = self.cleaned_data.get('duration_days')
        if duration < 1 or duration > 30:
            raise forms.ValidationError('Duration muss zwischen 1 und 30 Tagen liegen')
        return duration


class BidForm(forms.ModelForm):
    """Form für Gebot platzieren"""
    
    class Meta:
        model = Bid
        fields = ['amount']
        widgets = {
            'amount': forms.NumberInput(attrs={
                'class': 'form-control',
                'min': '0',
                'step': '0.01',
                'placeholder': 'Dein Gebot'
            })
        }
    
    def __init__(self, *args, **kwargs):
        self.auction = kwargs.pop('auction', None)
        super().__init__(*args, **kwargs)
        
        if self.auction:
            min_bid = self.auction.current_bid or self.auction.starting_bid
            self.fields['amount'].widget.attrs['min'] = float(min_bid) + 0.01
            self.fields['amount'].widget.attrs['placeholder'] = f'Min. €{float(min_bid) + 0.01}'
    
    def clean_amount(self):
        """Amount validieren"""
        amount = self.cleaned_data.get('amount')
        
        if not self.auction:
            raise forms.ValidationError('Auktion nicht gefunden')
        
        if not self.auction.is_active:
            raise forms.ValidationError('Auktion ist nicht aktiv')
        
        min_bid = self.auction.current_bid or self.auction.starting_bid
        
        if amount <= min_bid:
            raise forms.ValidationError(f'Gebot muss höher als €{float(min_bid)} sein')
        
        return amount