#   DrCr: Web-based double-entry bookkeeping framework
#   Copyright (C) 2022–2023  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 Flask, g
import toml
app = Flask(__name__)
app.config.from_file('config.toml', load=toml.load)

from flask_sqlalchemy.record_queries import get_recorded_queries

from .database import db
from .models import Transaction
from .plugins import init_plugins, transaction_providers
from .statements.models import StatementLine

import time

app.config['SQLALCHEMY_RECORD_QUERIES'] = app.debug
db.init_app(app)

def all_transactions(join_postings=True):
	# All Transactions in database
	if join_postings:
		transactions = db.session.scalars(db.select(Transaction).options(db.selectinload(Transaction.postings))).all()
	else:
		transactions = db.session.scalars(db.select(Transaction)).all()
	
	# Unreconciled StatementLines
	transactions.extend(line.into_transaction() for line in StatementLine.query.filter(StatementLine.reconciliation == None))
	
	# Plugins
	for transaction_provider in transaction_providers:
		transactions.extend(transaction_provider())
	
	return transactions

from . import views
from .journal import views
from .statements import views

init_plugins()

@app.cli.command('initdb')
def initdb():
	db.create_all()

if app.debug:
	@app.before_request
	def before_request():
		g.start = time.time()
	
	@app.after_request
	def after_request(response):
		diff = time.time() - g.start
		if response.response and response.status_code == 200 and response.content_type.startswith('text/html'):
			response.set_data(response.get_data().replace(b'__EXECUTION_TIME__', bytes(format(diff * 1000, '.1f'), 'utf-8')))
		return response
	
	@app.context_processor
	def add_dbtime():
		def dbtime():
			queries = get_recorded_queries()
			total_duration = sum(q.duration for q in queries)
			return format(total_duration * 1000, '.1f')
		return dict(dbtime=dbtime)