from qointum.qointract import Qointract
from qointum.qointract.fields import AssetField
from qointum.utils import sig_address, verify_sig

class BasicAccount(Qointract):
    perms = {'super': 'public'}
    picklable = True

    _balance = AssetField(perms='protected')

    @public
    def __init__(self, address, account_id=None, **kwargs):
        self.address = sig_address(address)
        self.account_id = account_id
        super().__init__('_'.join(filter(None, [self.address, self.account_id])), **kwargs)
        if verify_sig(address): self.authorize()

    @public
    @property
    def authorized(self):
        return self.has_perms({'withdraw': 'public'})

    @public
    def deposit(self, balance, info=None):          
        self._balance += balance

    @protected
    def authorize(self):
        self.grant_perms({'balance': 'public', 'withdraw': 'public'})

    @protected
    @property
    def balance(self):
        return self._balance.value

    @protected                      
    def withdraw(self, amount, info=None):
        return self._balance.credit(amount)

    @protected
    def pay_storage_fee(self, amount):
        return self.withdraw(amount)