from xbotlib import Bot
import jinja2
import os, re, json, shutil
import urllib.request
from urllib.parse import urlparse

local = './'
server = '/var/www/logs'

# output = local
output = server

def add_to_db(self, message, media_post=None):
	keys = [x for x in self.db[message.room]['messages'].keys()]
	if not keys:
		new_key = "0"
	else:
		new_key = str(int(keys[-1]) + 1)
	if media_post:
		self.db[message.room]['messages'][new_key] = media_post
	else:
		self.db[message.room]['messages'][new_key] = message.content.replace('@add','')

def del_from_db(self, message, key):
	del self.db[message.room]['messages'][key]

def write_log(self, message):
	template_file = 'index.html.j2' # Hmm... how to read the self.template ?
	print('using the template: ', template_file)
	template = jinja2.Template(open(template_file).read())
	with open(f'{ output }/{ message.room }/index.html','w') as out:
		html = template.render(title=self.db[message.room]['title'], db=self.db[message.room]['messages'])
		out.write(html)
	print('writing to:         ', f'{ message.room }/index.html')

def download(message):
	# define media_type
	if message.url.lower().endswith(('.jpg','jpeg','png','.gif','.bmp','.svg','eps')):
		media_type = 'images'
	elif message.url.lower().endswith('.pdf'):
		media_type = 'pdf'
	elif message.url.lower().endswith(('.mp3','.ogg','.oga','.mogg','.wav','.m4a','.webm')):
		media_type = 'audio'
	elif message.url.lower().endswith(('.mp4','.webm','.flv','.vob','.avi','.mov','.qt','.mpg','.mpeg','.mp4','.m2v','.mpe','.3gp')):
		media_type = 'video'
	else:
		media_type = None

	# download file
	data = urllib.request.urlopen(message.url).read()
	if data:
		print('downloading:        ', message.url)
		parsed_url = urlparse(message.url)
		filename = os.path.basename(parsed_url.path).replace(' ','_').replace('%20','_') # safe url's
		print('as the file:        ', filename)
		if not os.path.isdir(f'{ message.room }/{ media_type }'):
			os.mkdir(f'{ message.room }/{ media_type }')
		with open(f'{ message.room }/{ media_type }/{ filename }', 'wb') as media_file:
			media_file.write(data)
			media_file.close()
	
	# define media_post
	media_path = f'{ media_type }/{ filename }'
	if message.url.lower().endswith(('.jpg','jpeg','png','.gif','.bmp','.svg','eps')):
		media_post = f'<img src="{ media_path }">'
	elif message.url.lower().endswith('.pdf'):
		media_post = f'<iframe src="{ media_path }" width="800" height="1000"></iframe>'
	elif message.url.lower().endswith(('.mp3','.ogg','.oga','.mogg','.wav','.m4a','.webm')):
		media_post = f'<audio controls src="{ media_path }"></audio>'
	elif message.url.lower().endswith(('.mp4','.webm','.flv','.vob','.avi','.mov','.qt','.mpg','.mpeg','.mp4','.m2v','.mpe','.3gp')):
		media_post = f'<video controls src="{ media_path }"></video>'
	else:
		media_post = None
		
	return media_post, media_type

class logbot(Bot):

	help = '''Oh dear, logbot is here!

(You can speak to the bot using @logbot or logbot:)

<image>: Your image is added to the log.

logbot @help: Print this message

logbot @add <message>: Add a message to the log.

logbot @delete <num>: Delete posts from the log. For example: @logbot @delete 5

logbot @title <string>: Set the title of your log.

logbot @style <element> <css-rule>: Edit the css of your log. For example: logbot @style body background-color: pink; [future-feature]

logbot @uptime: To check how long @logbot has been around

@bots: To see who is around :)
'''

	def group(self, message):

		# create a folder + database item 
		# for each of the rooms in which 
		# logbot is hanging around :)
		if not message.room in self.db.keys():
			self.db[message.room] = {}
			self.db[message.room]['messages'] = {}
			self.db[message.room]['title'] = message.room
			if not os.path.isdir(message.room):
				os.mkdir(message.room)
				shutil.copy('stylesheet.css', message.room)
			else:
				print('WARNING! This folder already exists:', message.room)

		# to debug in the terminal
		print('------------------')
		print('message:            ', message.text)
		print('room:               ', message.room)
		print('sender:             ', message.sender)

		# image / PDF / audio / video
		if message.url:
			media_post, media_type = download(message)
			if media_post:
				add_to_db(self, message, media_post=media_post)
				media_type = media_type.replace('images', 'image') # linguistic hack!
				reply = f'Thanks for that { media_type }!'
			else:
				reply = 'Sorry, can\'t touch that :('

		elif '@add' in message.text:
			add_to_db(self, message)
			reply = 'Added, thanks!'

		elif '@delete' in message.text:
			match = re.findall("@delete \d*", message.content)[0]
			key = str(match.replace('@delete ',''))

			if key in self.db[message.room]['messages']:
				print('To be deleted:', self.db[message.room]['messages'][key])
				reply = f"This message is deleted: { self.db[message.room]['messages'][key] }"
				del_from_db(self, message, key)
			else:
				reply = 'This message is already gone!'

		elif '@help' in message.text:
			print('HELP')

		elif '@title' in message.text:
			match = re.findall("@title .*", message.content)[0]
			title = match.replace('@title','')
			self.db[message.room]['title'] = title
			reply = f'The title of the log is changed to: { title }'

		elif '@style' in message.text:
			reply = 'This is a future-feature ...'

		else:
			reply = 'Hmm ... not sure what you want to do?'

		write_log(self, message)
		return self.reply(reply, room=message.room)

logbot()