import praw
import re
from collections import defaultdict

def main():

	reddit = praw.Reddit(client_id= '',
			     client_secret= '',
	       		     password= '',
		    	     username= '',
			     user_agent= 'TowerOfTrial_bot')

	subreddit = reddit.subreddit('endlessfrontier')
	for submission in subreddit.stream.submissions():
		if "tower of trial" in submission.title.lower():
			if submission.author.name.lower() == 'darthreborn':
				solutions = solution_check(submission.comments)
				old_solutions = old_solution_check(submission.selftext)
				post = merge_solutions(solutions, old_solutions)
				submission.edit(post)


def merge_solutions(solutions, old_solutions):
	body = '''Hello All! I will be hosting Server 1 ToT.
Please post below and lets have a great ToT! I will update this post at least every 8 hours, maybe more often as i have time so long as new solutions are posted. I will stop updating the list after each entry has at least one solution. Thank you all for your support!
New to the tower? Click here.
Not sure about an abbreviation? Check here!
Have ideas on how to make this more efficient / useful? Msg /u/DarthReborn
Early bird? No Solutions yet? Check here for a list of premade solutions to known problems.
Still don't see anything useful? Ask someone from the official discord in channel #s1_toweroftrial for help. You must assign yourself to server 1 in #role_commands to see the channel. Contact @RebornsNavy for assistance.
Want to help streamline this process and can code? Msg /u/DarthReborn so we can collaborate on a useful solution!\n\n'''

	for k, v in solutions.items():
		try:
			old_line = old_solutions[k]
			if v not in old_line:
				string = '\n\n  '.join(v)
				temp = str(k) + ":" + str(string) +'\n\n'
				body += temp

		except KeyError:
			print key + " is not valid"

	return body

def old_solution_check(body):
	lst = []
	solution = re.split(':|\n\n', body)
	for n in range(0, len(solution), 2):
		if len(solution)%2 is 1:
			continue
		level = num(solution[n].strip())
		if level > 0:
			line = solution[n+1]
			lst.append((level,line))

	old_solutions = defaultdict(list)
	for k, v in lst:
		old_solutions[k].append(v)

	return old_solutions


def solution_check(comments):
	lst = []

	for comment in comments:
		solution = re.split(':|\n', comment.body)
		solution = filter(lambda s: s.strip(), solution)

		if len(solution)%2 is 1:
			continue
		for n in range(0, len(solution), 2):
			level = num(solution[n].strip())
			if level > 0:
				line = solution[n+1]
				lst.append((level,line))

		solutions = defaultdict(list)
		for k, v in lst:
			solutions[k].append(v)

	return solutions


def num(s):
	try:
		return int(s)
	except ValueError:
		return -1


if __name__ == '__main__':
    main()