#!/usr/bin/env python3
import irc.bot

import gitea, github
import markovuniverse as mu
import tvdb_keys,tvdb_api
import os.path
import subprocess
import json

DEBUG = os.path.exists(os.path.expanduser("~/minerbot2.debug"))

def reloadDebug(bot):
	global DEBUG
	DEBUG = os.path.exists(os.path.expanduser("~/minerbot2.debug"))
	if not DEBUG:
		for channel in CHANNELS:
			if channel not in bot.chanlist:
				bot.join(channel)
				bot.chanlist.append(channel)
		for channel in bot.chanlist:
			if channel not in CHANNELS:
				bot.part(channel,"exiting debug mode")
				bot.chanlist.remove(channel)
	else:
		with open(os.path.expanduser("~/minerbot2.debug")) as f:
			botchannels = [l.rstrip() for l in f if l.rstrip()]
		for channel in bot.chanlist:
			if channel not in botchannels:
				bot.part(channel,"entering debug mode")
				bot.chanlist.remove(channel)
		for channel in botchannels:
			if channel not in bot.chanlist:
				bot.join(channel)
				bot.chanlist.append(channel)

def log(s):
	with open(os.path.expanduser("~/minerbot2.log"),"a") as f:
		f.write(s.rstrip()+"\n")

def toot(s,tootjson="/usr/local/bin"):
	with open(os.path.expanduser("~/minerbot2.log"),"a") as f:
		return subprocess.call(["/usr/local/bin/toot",s],env={"TOOT_JSON_PATH":tootjson,"LANG":"C.UTF-8","LC_ALL":"C.UTF-8"},stdout=f,stderr=subprocess.STDOUT)

gttapi = gitea.GiteaAPI("https://tildegit.org")
#ghapi = github.GithubAPI()
tvdb = tvdb_api.Tvdb(apikey=tvdb_keys.api_key,cache=False)

def pad(l,n):
	while len(l)<n:
		l.append("")

SU_EP_INFO_FORMAT = "{nick}: Season {ep[airedSeason]}, Episode {ep[airedEpisodeNumber]}: {ep[episodeName]} - \"{ep[overview]}\"; aired {ep[firstAired]}"

class TVBot(irc.bot.SingleServerIRCBot):
	def __init__(self, channels, nickname, server, port=6667, prefix="!", operator="khuxkm@oper.tilde.chat"):
		irc.bot.SingleServerIRCBot.__init__(self, [(server, port)], nickname, nickname)
		self.chanlist = channels
		self.bot_nick = nickname
		self.prefix = "!"
		self.botop = operator
		self.command_handlers = {}
		self.data = {}
		self.default = {}
		self.register("admin",self.adminCommand)
		self.register("botlist",self.botlist)
		self.register("rollcall",self.botlist)
		self.register("gitea",self.giteaCommand)
#		self.register("github",self.githubCommand)
#		self.register("quit",self.quitCommand)
#		self.register("reload",self.reloadCommand)
		self.register("su",self.suCommand)
		self.register("toot",self.tootCommand)
		self.registerData("blocklist","blocklist.json",{})

	def botlist(self,c,e,p):
		c.privmsg(e.target,"Maintainer: khuxkm@tilde.team; Bot that does things; Commands: !gitea, !su, !toot".replace("!",self.prefix))

	def tootCommand(self,c,e,p):
		p.pop(0)
		if not p:
			c.privmsg(e.target,"{}: Usage: {}toot <text>".format(e.source.nick,self.prefix))
			return
		if toot(" ".join(p),("/usr/local/bin" if e.target=="#team" else "/usr/local/bin/tildeverse"))==0:
			c.privmsg(e.target,"{}: Tooted!".format(e.source.nick))
		else:
			c.privmsg(e.target,"{}: Toot failed!".format(e.source.nick))

	def suCommand(self,c,e,p):
		p.pop(0)
		if not p:
			p = ["help"]
		if p[0]=="fake-leak":
			c.privmsg(e.target,e.source.nick+": {} - {}".format(*mu.new_episode()))
		elif p[0]=="episode":
			if p[1]=="name":
				name = " ".join(p[2:])
				eps = tvdb["Steven Universe"].search(name,key="episodeName")
				if len(eps)>1:
					c.privmsg(e.target,"{}: can you be a bit more specific, please?".format(e.source.nick))
				elif len(eps)==0:
					c.privmsg(e.target,"{}: I couldn't find the Steven Universe episode \"{}\".".format(e.source.nick,name))
				else:
					ep = eps[0]
					c.privmsg(e.target,SU_EP_INFO_FORMAT.format(nick=e.source.nick,ep=ep))
			elif p[1]=="number":
				if "x" in p[2]:
					season, number = [int(x) for x in p[2].split("x")]
				else:
					season, number = [int(x) for x in [p[2],p[3]]]
				ep = tvdb["Steven Universe"][season][number]
				c.privmsg(e.target,SU_EP_INFO_FORMAT.format(nick=e.source.nick,ep=ep))
		elif p[0]=="help":
			c.privmsg(e.target,"{}: current !su subcommands are: help (shows this message), fake-leak (comes up with a fake leak), episode <number/name> (get an episode by number (i.e; 01x01) or by name (i.e; Gem Glow))".format(e.source.nick))

	def quitCommand(self,c,e,p):
		if e.source.nick==self.botop:
			c.quit()
			raise SystemExit(0)
		else:
			c.privmsg(e.target,"You can't tell me what to do!")

	def reloadCommand(self,c,e,p):
		if e.source.nick==self.botop:
			c.quit()
			raise SystemExit(1)
		else:
			c.privmsg(e.target,"You can't tell me what to do!")

	def adminCommand(self,c,e,p):
		p.pop(0) # command name
		if e.source.userhost!=self.botop:
#			c.privmsg(e.source.nick)
			return
		sub = p.pop(0)
		if sub=="prefix":
			self.prefix=p[0]
		elif sub=="block":
			if len(p)==2:
				self.block(p[0],p[1])
			else:
				self.block(p[0],"*")
		elif sub=="unblock":
			if len(p)==2:
				self.unblock(p[0],p[1])
			else:
				self.unblock(p[0],"*")
		elif sub=="global":
			for channel in self.chanlist:
				c.privmsg(channel,"[GLOBAL] "+" ".join(p))
		elif sub=="debug":
			reloadDebug(self)
			log("Reloaded debug mode")

	def load(self):
		for attr in self.data:
			filename = self.data[attr]
			if os.path.exists(filename):
				with open(filename) as f:
					setattr(self,attr,json.load(f))
			else:
				setattr(self,attr,self.default[attr])

	def save(self):
		for attr in self.data:
			filename = self.data[attr]
			with open(filename,"w") as f:
				json.dump(getattr(self,attr),f)

	def block(self,hostmask,command):
		self.load()
		if hostmask in self.blocklist:
			self.blocklist[hostmask].append(command)
		else:
			self.blocklist[hostmask] = [command]
		self.save()

	def unblock(self,hostmask,command):
		self.load()
		if not self.isBlocked(hostmask,command):
			return 1 # don't unblock someone if they aren't blocked in the first place
		if self.globallyBlocked(hostmask) and command != "*":
			return 2 # no exceptions to global blocks, must unblock globally
		if len(self.blocklist[hostmask])==1:
			del self.blocklist[hostmask]
		else:
			self.blocklist[hostmask].remove(command)
		self.save()

	def isBlocked(self,hostmask,command):
		if self.globallyBlocked(hostmask):
			return True # global blocks apply to all commands!
		return command in self.blocklist.get(hostmask,[])

	def globallyBlocked(self,hostmask):
		self.load()
		return "*" in self.blocklist.get(hostmask,[])

	def gitCommand(self,api,c,e,p,has_mirrors=True):
		p.pop(0)
		if not p:
			return
		if p[0] in ('issue','pull'):
			pad(p,4)
			global issue_data
			if "/" in p[1]:
				owner,repo = p[1].split("/")
				try:
					issue = int(p[2])
				except ValueError:
					c.privmsg(e.target,"{}: do you think this is some kind of joke?".format(e.source.nick))
					return
				issue_data = api.get_issue_data(owner,repo,issue)
			else:
				owner,repo = p[1], p[2]
				try:
					issue = int(p[3])
				except ValueError:
					c.privmsg(e.target,"{}: do you think this is some kind of joke?".format(e.source.nick))
					return
				issue_data = api.get_issue_data(owner,repo,issue)
			if issue_data.status_code!=200:
				if has_mirrors:
					repo_data = api.get_repo_data(owner,repo)
					if repo_data.json()['mirror']:
						c.privmsg(e.target,"The targeted repo is a mirror.")
						return
				c.privmsg(e.target,"An error occurred.")
				try:
					issue_data.raise_for_status()
				except Exception as e:
					log(e)
			else:
				issue_data = issue_data.json()
				descriptor = "Issue"
				if 'pull_request' in issue_data and issue_data['pull_request'] is not None:
					descriptor = "Pull request"
				description = descriptor + " #"+str(issue_data['number'])
				description += ": \"{}\"".format(issue_data['title'])
				author = issue_data['user']
				description += " by {}".format(author.get('full_name') if author.get('full_name') else author['login'])
				if 'html_url' in issue_data:
					description += ": {}".format(issue_data["html_url"])
				else:
					description += ": {}/{}/{}/{}/{}".format(api.base_url,owner,repo,descriptor.split()[0].lower()+"s",issue_data['number'])
				c.privmsg(e.target,description)
		elif p[0]=="link":
			pad(p,3)
			if "/" in p[1]:
				user, repo = p[1].split("/",1)
			else:
				user, repo = p[1], p[2]
			repo_data = api.get_repo_data(user,repo)
			if repo_data.status_code!=200:
				c.privmsg(e.target,"An error occcurred. (Response code = {!s})".format(repo_data.status_code))
				return
			repo_data = repo_data.json()
			c.privmsg(e.target,"{nick}: {r[full_name]} - {r[description]}; {r[html_url]}".format(nick=e.source.nick,r=repo_data))

	def giteaCommand(self,c,e,p):
		self.gitCommand(gttapi,c,e,p)

#	def githubCommand(self,c,e,p):
#		self.gitCommand(ghapi,c,e,p,False)

	def register(self,cmd,func):
		self.command_handlers[cmd]=func

	def registerData(self,attr,filename,default):
		self.data[attr] = filename
		self.default[attr] = default

	def on_welcome(self, c, e):
		c.mode(self.bot_nick,"+B")
		for channel in self.chanlist:
			c.join(channel)

	def on_pubmsg(self, c, e):
		self.process_command(c, e, e.arguments[0])

	def on_privmsg(self, c, e):
		self.process_command(c, e, e.arguments[0])

	def process_command(self, c, e, text):
		if not text.startswith(self.prefix):
			if text.startswith("!botlist") or text.startswith("!rollcall"):
				self.botlist(c,e,text[len(self.prefix):].split(" "))
			return # only deal with prefixed messages
		parts = text[len(self.prefix):].split(" ")
		if not parts[0] in self.command_handlers:
			return # not our command
		if self.isBlocked(e.source.userhost,parts[0]):
			return # blocked user!
		self.command_handlers[parts[0]](c,e,parts)

CHANNELS = [
	'#team',
	'#meta',
	'#quotes',
	'#journal',
	'#sudoers',
	'#tildeverse',
	'#stevenuniverse',
	'#suwp',
	'#bots',
	'#twtxt',
	'#tildelinux'
]


if __name__ == '__main__':
	if DEBUG:
		with open(os.path.expanduser("~/minerbot2.debug")) as f:
			botchannels = [l.rstrip() for l in f if l.rstrip()]
	else:
		botchannels = CHANNELS
	bot = TVBot(botchannels, 'minerbot2', 'localhost')
	bot.start()