#!/usr/bin/env python3
"""
A Flask-based questing platform.
"""
#TODO: look into how cloudflare proxying interacts with nginx
import os
import time

from flask import Flask
from flask_paranoid import Paranoid
from flask_session import Session
from flask_socketio import SocketIO
from werkzeug.contrib.fixers import ProxyFix

import database as db
from views import views
from events import socketio

app = Flask(__name__)
app.wsgi_app = ProxyFix(app.wsgi_app)
app.register_blueprint(views)
app.config['MAX_CONTENT_LENGTH'] = 16 * 1024 * 1024
app.config['SESSION_TYPE'] = 'filesystem'
app.jinja_env.trim_blocks = True
app.jinja_env.lstrip_blocks = True
app.jinja_env.undefined = "StrictUndefined"
Session(app)
socketio.init_app(app)
paranoid = Paranoid(app)
paranoid.redirect_view = 'views.index'


def init():
	"""
	Initializes the application.
	"""
	# init secret key
	if os.path.exists("secret_key"):
		with open("secret_key", "rb") as file:
			secret_key = file.read()
	else:
		secret_key = os.urandom(64)
		with open("secret_key", "wb") as file:
			file.write(secret_key)
	app.secret_key = secret_key


@app.template_filter("strftime")
def unix2string(unix):
	"""
	Converts a unix timestamp into a string.
	"""
	form = "%Y-%m-%d %H:%M:%S"
	t = time.localtime(unix)
	return time.strftime(form, t)


@app.template_filter("dice_chal")
def get_dice_challenge(post_id):
	"""
	Returns the dice challenge for the given post_id.
	"""
	return db.get_dice_call(post_id)[3]


@app.template_filter("is_write_in")
def is_write_in(post_id):
	"""
	Returns true if the provided post_id is a poll write-in's are
	allowed in it.
	"""
	poll = db.get_poll(post_id)
	if poll and poll[3]:
		return True
	else:
		return False


@app.after_request
def minify(res):
	"""
	Minify the HTML response to decrease bandwidth usage.
	"""
	if res.content_type == "text/html; charset=utf-8" and False:
		res.set_data(
			res.get_data(as_text=True).replace("\n", "").replace("\t", ""))
	return res


init()
if __name__ == "__main__":
	app.run(host='0.0.0.0', port=5050)