#!/usr/bin/env python3
#
# mmgen = Multi-Mode GENerator, command-line Bitcoin cold storage solution
# Copyright (C)2013-2023 The MMGen Project <mmgen@tuta.io>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""
tw.bal: Tracking wallet getbalance class for the MMGen suite
"""

from ..base_obj import AsyncInit
from ..objmethods import MMGenObject
from ..obj import NonNegativeInt
from ..rpc import rpc_init

class TwGetBalance(MMGenObject,metaclass=AsyncInit):

	def __new__(cls,cfg,proto,*args,**kwargs):
		return MMGenObject.__new__(proto.base_proto_subclass(cls,'tw.bal'))

	async def __init__(self,cfg,proto,minconf,quiet):

		class BalanceInfo(dict):
			def __init__(self):
				amt0 = proto.coin_amt('0')
				data = {
					'unconfirmed': amt0,
					'lt_minconf': amt0,
					'ge_minconf': amt0,
					'spendable': amt0,
				}
				dict.__init__(self,**data)

		self.minconf = NonNegativeInt(minconf)
		self.balance_info = BalanceInfo
		self.quiet = quiet
		self.proto = proto
		self.data = {k:self.balance_info() for k in self.start_labels}
		self.rpc = await rpc_init(cfg,proto)

		if minconf < 2 and 'lt_minconf' in self.conf_cols:
			del self.conf_cols['lt_minconf']

		await self.create_data()

	def format(self,color):

		def gen_output():

			if self.quiet:
				yield str(self.data['TOTAL']['ge_minconf'] if self.data else 0)
			else:

				def get_col_iwidth(colname):
					return len(str(int(max(v[colname] for v in self.data.values())))) + iwidth_adj

				def make_col(label,col):
					return self.data[label][col].fmt( iwidth=iwidths[col], color=color )

				if color:
					from ..color import red,green,yellow
				else:
					from ..color import nocolor
					red = green = yellow = nocolor

				add_w = self.proto.coin_amt.max_prec + 1 # 1 = len('.')
				iwidth_adj = 1 # so that min iwidth (1) + add_w + iwidth_adj >= len('Unconfirmed')
				col1_w = max(len(l) for l in self.start_labels) + 1 # 1 = len(':')

				iwidths = {colname: get_col_iwidth(colname) for colname in self.conf_cols}

				net_desc = self.proto.coin + ' ' + self.proto.network.upper()
				if net_desc != 'BTC MAINNET':
					yield f'Network: {green(net_desc)}'

				yield '{lbl:{w}} {cols}'.format(
					lbl = 'Wallet',
					w = col1_w + iwidth_adj,
					cols = ' '.join(v.format(minconf=self.minconf).ljust(iwidths[k]+add_w)
						for k,v in self.conf_cols.items()) ).rstrip()

				from ..addr import MMGenID
				for label in sorted(self.data.keys()):
					yield '{lbl} {cols}'.format(
						lbl = yellow((label + ' ' + self.proto.coin).ljust(col1_w)) if label == 'TOTAL'
							else MMGenID.hlc( (label+':').ljust(col1_w), color=color ),
						cols = ' '.join(make_col(label,col) for col in self.conf_cols)
					).rstrip()

			for k,v in self.data.items():
				if k == 'TOTAL':
					continue
				if v['spendable']:
					yield red(f'Warning: this wallet contains PRIVATE KEYS for {k} outputs!')

		return '\n'.join(gen_output())
