#   DrCr: Web-based double-entry bookkeeping framework
#   Copyright (C) 2022  Lee Yingtong Li (RunasSudo)
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
#   You should have received a copy of the GNU Affero General Public License
#   along with this program.  If not, see <https://www.gnu.org/licenses/>.

from flask import render_template, request

from .models import Amount, TrialBalancer
from .webapp import all_transactions, app

@app.route('/')
def index():
	return '<a href="/general-journal">General journal</a><br><a href="/statement-lines">Statement lines</a><br><a href="/general-ledger">General ledger</a><br><a href="/trial-balance">Trial balance</a>'

@app.route('/general-ledger')
def general_ledger():
	return render_template('general_ledger.html', transactions=sorted(all_transactions(), key=lambda t: t.dt))

@app.route('/trial-balance')
def trial_balance():
	balancer = TrialBalancer()
	balancer.apply_transactions(all_transactions())
	
	total_dr = Amount(sum(v.quantity for v in balancer.accounts.values() if v.quantity > 0), '$')
	total_cr = Amount(sum(v.quantity for v in balancer.accounts.values() if v.quantity < 0), '$')
	
	return render_template('trial_balance.html', accounts=dict(sorted(balancer.accounts.items())), total_dr=total_dr, total_cr=total_cr)

@app.route('/account-transactions')
def account_transactions():
	# FIXME: Filter in SQL
	transactions = [t for t in all_transactions() if any(p.account == request.args['account'] for p in t.postings)]
	
	return render_template(
		'transactions.html',
		account=request.args['account'],
		running_total=Amount(0, '$'),
		transactions=sorted(transactions, key=lambda t: t.dt)
	)