from decimal import Decimal

from django import forms
from django.conf import settings

from apps.billing.models import RechargeOrder


class ApiKeyCreateForm(forms.Form):
    name = forms.CharField(
        label="名称",
        max_length=80,
        required=False,
        widget=forms.TextInput(
            attrs={
                "autocomplete": "off",
                "class": "form-control",
                "placeholder": "例如：桌面端",
            }
        ),
    )


class RechargeCreateForm(forms.Form):
    amount = forms.DecimalField(
        label="充值金额",
        max_digits=12,
        decimal_places=2,
        min_value=Decimal("0.01"),
        widget=forms.NumberInput(
            attrs={
                "class": "form-control",
                "inputmode": "decimal",
                "min": "0.01",
                "step": "0.01",
                "placeholder": "例如：100.00",
            }
        ),
    )
    pay_method = forms.ChoiceField(
        label="支付方式",
        choices=(
            (RechargeOrder.PayMethod.WEIXIN, "微信"),
            (RechargeOrder.PayMethod.ALIPAY, "支付宝"),
        ),
        initial=RechargeOrder.PayMethod.WEIXIN,
        widget=forms.RadioSelect(attrs={"class": "form-check-input"}),
    )

    def clean_amount(self):
        amount = self.cleaned_data["amount"]
        max_amount = Decimal(str(settings.RECHARGE_MAX_AMOUNT_CNY))
        if amount > max_amount:
            raise forms.ValidationError(f"单笔充值金额不能超过 {max_amount:.2f} CNY")
        return amount