#!/usr/bin/env python3
"""
SocketIO events.
"""
import re
import time
import random

import bleach
from flask import session
from flask_socketio import SocketIO, emit, join_room

import tools
import database as db

socketio = SocketIO()

@socketio.on('joined')
def joined(data):
	"""
	Sent by clients when they enter a room.
	"""
	room = data["room"]
	join_room(room)


@socketio.on('message')
def message(data):
	"""
	Sent by a client when the user entered a new message.
	"""
	room = data["room"]
	
	message = data["message"]
	date = int(time.time())
	data["date"] = date

	message = message.strip()
	if not message:
		return
	tags = ["b", "code", "i", "s"]
	message = bleach.clean(message, tags=tags)
	lines = []
	for line in message.splitlines():
		if line.startswith(">"):
			line = '<span class="greenText">' + line + '</span>'
		lines.append(line)
	message = "<br />".join(lines)
	message = tools.handle_img(message)
	data["message"] = message

	db.log_chat_message(data)
	emit("message", data, room=room)

	if message.startswith("/dice") or message.startswith("/roll"):
		handle_dice(data)


def handle_dice(data):
	"""
	Handle /dice or /roll messages.
	"""
	room = data["room"]
	reg = re.search(r"(\d+)d(\d+)([+-]\d+)?", data['message'])
	if not reg:
		return
	try:
		diceNum, diceSides, diceMod = map(int, reg.groups())
		assert 0 < diceNum < 100
		assert 0 < diceSides < 100
		assert -1000 < diceMod < 1000
	except (ValueError, AssertionError):
		return
	dice = [random.randint(1, diceSides) for _ in range(diceNum)]
	total = sum(dice)
	if diceMod:
		total += diceMod
	msg = f"<b>Rolled {', '.join(map(str, dice))}"
	if diceMod:
		if diceMod > 0:
			msg += " +"
		msg += " " + str(diceMod)
	msg += " = " + str(total) + "</b>"
	date = int(time.time())
	name = "Server"
	data = {"message": msg, "name": name, "date": date, "room": room}
	#emit("message", data, room=room)
	message(data)


@socketio.on("new_post")
def new_post(data):
	"""
	Called when the QM makes a new post.
	"""
	room = data["room"]
	res = db.get_quest_meta(quest_id=room)
	if not res:
		return
	if session.get("user_id") != res[3]:
		return

	post = data["post"]
	post = bleach.clean(post.strip())
	post = post.replace("\n", "<br />")
	post = tools.handle_img(post)
	data["post"] = [post]
	data["date"] = int(time.time())
	post_id = db.insert_quest_post(room, post, data["date"])
	data["post_id"] = post_id

	emit("new_post", data, room=room)


@socketio.on("update_post")
def update_post(data):
	"""
	Called when the QM edits and saves a post.
	"""
	room = data["room"]
	res = db.get_quest_meta(quest_id=room)
	if not res:
		return
	if session.get("user_id") != res[3]:
		return

	post = data["post"]
	post = post.strip().replace("<br>", "<br />")
	post = tools.handle_img(post)
	data["post"] = post

	post_id = data["post_id"]
	db.update_quest_post(post_id, post)
	emit("update_post", data, room=room)


@socketio.on("dice_post")
def dice_(data):
	"""
	Called when the QM posts a new dice call.
	"""
	print(data)
	room = data["room"]
	res = db.get_quest_meta(quest_id=room)
	if not res:
		return
	if session.get("user_id") != res[3]:
		return

	date = int(time.time())
	data["date"] = date
	data["post_id"] = 0

	emit("dice_post", data, room=room)