import praw
import csv

#Configuration
ApplicationName = 'This is the application name, please change it'
SubredditName = 'RedditDayOf'
OutputFile = 'posts.csv'

def handle_submission(submission):
	if (str(submission.subreddit)==SubredditName):
		if (submission.link_flair_text is None):
			submission.link_flair_text = ''
		if(submission.url is None):
			submission.url = ''
		f = csv.writer(open(OutputFile, 'ab+')) 
		f.writerow([submission.link_flair_text.encode('utf-8','ignore'),submission.thumbnail,submission.title.encode('utf-8','ignore'), submission.fullname, submission.author, submission.score, submission.created_utc,submission.permalink.encode('utf-8','ignore'),submission.num_comments,submission.url.encode('utf-8','ignore')])

	print (submission.fullname + ' ' + str(submission.subreddit))

def handle_submissions(submissions):
	count = 0
	for submission in submissions:
			handle_submission(submission)
			last_fullname=submission.fullname
			count += 1	
	return last_fullname, count
	
def save_last_id(fullname):
	text_file = open('last_id_checked.txt', 'w')
	text_file.write(fullname)
	text_file.close()

def get_last_id():
	try:
		text_file = open('last_id_checked.txt','r')
		result = text_file.read()
		text_file.close()
		return result
	except:
		return None

r = praw.Reddit(user_agent=ApplicationName)
	
last_fullname = get_last_id()

if last_fullname is None:
	submissions = r.get_subreddit(SubredditName).get_new(limit=1000)
	last_fullname = handle_submissions(submissions)
	save_last_id(last_fullname)
else:
	print 'Starting again at ' + last_fullname

count = 1
while count> 0:
	try:
		submissions = r.get_subreddit('all').get_new(params={'limit':'1000','after':last_fullname})
		last_fullname, count = handle_submissions(submissions)
		save_last_id(last_fullname)
		
	except Exception as detail:
		print 'Error: ' , detail
		count = 1

	save_last_id(last_fullname)

print 'You have reached the beginning of time. Chilly, isn\'t it?'