import urllib2, urllib, time, datetime
from xml.dom import minidom
from pprint import pprint

def login(delicious_user, delicious_pass):
	"""Takes a username and password and logs into delicious"""

	password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm()
	password_manager.add_password(
		None, 'https://api.del.icio.us/', delicious_user, delicious_pass
	)
	auth_handler = urllib2.HTTPBasicAuthHandler(password_manager)
	opener = urllib2.build_opener(auth_handler)
	urllib2.install_opener(opener)

def urlencode(d):
	for key, value in d.items():
		if isinstance(value, unicode):
			d[key] = value.encode('utf-8')
	return urllib.urlencode(d)


def post_URL(url, title, notes, tags):
	"""function takes a title, url, description and tags and posts to delicious"""
	postUrl = urlencode({
		'url': url,
		'description': title,
		'extended': notes,
		'tags': tags,
		'replace': 'no'
	})
	return minidom.parseString(urllib2.urlopen('https://api.del.icio.us/v1/posts/add?'+postUrl).read()).getElementsByTagName('result')[0].getAttribute('code')

def get_user_links(username):
	"""given a username return the most recent links for that user as a minidom"""
	return minidom.parseString(urllib2.urlopen('http://del.icio.us/rss/'+username).read()).getElementsByTagName('item')

def read_in_file():
	"""Reads in the config files, returns the username and password of the main account and list of dictionarys of the subname acconts"""
	fp = open('/home/natbat/natbat.net/code/python/doubleposter/config.txt','r')
	lines = fp.readlines()
	fp.close()
	accounts = []
	for line in lines:
		if line.startswith('#') or not line.strip():
			continue
		if line.startswith('-'):
			line = line.lstrip(" -")
			master_username, master_password = map(lambda x: x.strip(), line.split(','))
		else:
			username, tags, fortag = map(lambda x: x.strip(), line.split(','))
			accounts.append({
				'username' : username, 
				'tags' : tags, 
				'fortag' : fortag })
	return accounts, master_username, master_password

def parse_date(s):
	"""Takes a date in the format YYYY-MM-DDTHH:mm:ssZ"""
	return datetime.datetime(*time.strptime(s,"%Y-%m-%dT%H:%M:%SZ")[0:6])
	
def syncronise_account():
	"""Kickstarts the whole kaboodle"""
	linkQ = []
	print 'starting sync' 
	accounts, master_username, master_password = read_in_file()
	print 'logging in with username %s and password %s' % (master_username, master_password)
	login(master_username, master_password)
	for account in accounts:
		userLinks = get_user_links(account['username'])
		for link in userLinks:
			
			tagElements = link.getElementsByTagName('dc:subject')
			if len(tagElements) > 0:
				tags = tagElements[0].firstChild.data.split()
			else:
				tags = []
			
			tempDesc = link.getElementsByTagName('description')
			if len(tempDesc) > 0:
				desc = tempDesc[0].firstChild.data
			else:
				desc = ''
				
			if account['fortag'] in tags or len(account['fortag']) == 0:
				tags.extend(account['tags'].split())
				linkQ.append({
					'url' : link.getElementsByTagName('link')[0].firstChild.data,
					'title' : link.getElementsByTagName('title')[0].firstChild.data,
					'tags' : ' '.join(tags),
					'desc' : desc,
					'date' : parse_date(link.getElementsByTagName('dc:date')[0].firstChild.data)
				})
	linkQ.sort(lambda x,y: cmp(x['date'], y['date']))
	for linkInQ in linkQ:
		pprint(linkInQ)
		# posting in the form url title notes tags
		post_URL(linkInQ['url'],linkInQ['title'],linkInQ['desc'],linkInQ['tags'])
		time.sleep(2)


if __name__ == '__main__':
	syncronise_account()