From 2063477c583aeb337bf239e067f8ab2e0ed6ad09 Mon Sep 17 00:00:00 2001
From: Joscha <brummer@migejolise.de>
Date: Tue, 24 May 2016 22:47:18 +0200
Subject: [PATCH] Save and restore bots

---
 yaboli/bot.py        |  9 +++++
 yaboli/botmanager.py | 93 +++++++++++++++++++++++++++++++++++++-------
 2 files changed, 87 insertions(+), 15 deletions(-)

diff --git a/yaboli/bot.py b/yaboli/bot.py
index 8d23367..ef47706 100644
--- a/yaboli/bot.py
+++ b/yaboli/bot.py
@@ -187,6 +187,15 @@ class Bot():
 		
 		return self.room.room
 	
+	def password(self):
+		"""
+		password() -> password
+		
+		The current room's password.
+		"""
+		
+		return self.room.password
+	
 	def nick(self):
 		"""
 		nick() -> nick
diff --git a/yaboli/botmanager.py b/yaboli/botmanager.py
index 7eeba82..7b1bb88 100644
--- a/yaboli/botmanager.py
+++ b/yaboli/botmanager.py
@@ -1,3 +1,5 @@
+import json
+
 from . import bot
 from . import exceptions
 
@@ -6,20 +8,31 @@ class BotManager():
 	Keep track of multiple bots in different rooms.
 	"""
 	
-	def __init__(self, bot_class, default_nick="yaboli", max_bots=100):
+	def __init__(self, bot_class, default_nick="yaboli", max_bots=100,
+	             bots_file="bots.json", data_file="data.json"):
 		"""
 		bot_class    - class to create instances of
 		default_nick - default nick for all bots to assume when no nick is specified
 		max_bots     - maximum number of bots allowed to exist simultaneously
 		               None or 0 - no limit
+		bots_file    - file the bot backups are saved to
+		               None - no bot backups
+		data_file    - file the bot data is saved to
+		             - None - bot data isn't saved
 		"""
 		
 		self.bot_class = bot_class
 		self.max_bots = max_bots
 		self.default_nick = default_nick
 		
-		self.bots = {}
-		self.bot_id = 0
+		self.bots_file = bots_file
+		self.data_file = data_file
+		
+		self._bots = {}
+		self._bot_id = 0
+		self._bot_data = {}
+		
+		self._load_bots()
 	
 	def create(self, room, password=None, nick=None):
 		"""
@@ -31,12 +44,14 @@ class BotManager():
 		if nick is None:
 			nick = self.default_nick
 		
-		if self.max_bots and len(self.bots) >= self.max_bots:
+		if self.max_bots and len(self._bots) >= self.max_bots:
 			raise exceptions.CreateBotException("max_bots limit hit")
 		else:
 			bot = self.bot_class(room, nick=nick, password=password, manager=self)
-			self.bots[self.bot_id] = bot
-			self.bot_id += 1
+			self._bots[self._bot_id] = bot
+			self._bot_id += 1
+			
+			self._save_bots()
 			
 			return bot
 	
@@ -47,11 +62,11 @@ class BotManager():
 		Kill a bot and remove it from the list of bots.
 		"""
 		
-		if not bot_id in self.bots:
-			raise exceptions.BotNotFoundException("Bot not in bots list")
-		
-		self.bots[bot_id].stop()
-		del self.bots[bot_id]
+		if bot_id in self._bots:
+			self._bots[bot_id].stop()
+			self._bots.pop(bot_id)
+			
+			self._save_bots()
 	
 	def get(self, bot_id):
 		"""
@@ -60,8 +75,8 @@ class BotManager():
 		Return bot with that id, if found.
 		"""
 		
-		if bot_id in self.bots:
-			return self.bots[bot_id]
+		if bot_id in self._bots:
+			return self._bots[bot_id]
 	
 	def get_id(self, bot):
 		"""
@@ -70,7 +85,7 @@ class BotManager():
 		Return the bot id, if the bot is known.
 		"""
 		
-		for bot_id, own_bot in self.bots.items():
+		for bot_id, own_bot in self._bots.items():
 			if bot == own_bot:
 				return bot_id
 	
@@ -81,5 +96,53 @@ class BotManager():
 		Collect all bots that are connected to the room and have that nick.
 		"""
 		
-		return {bot_id: bot for bot_id, bot in self.bots.items()
+		return {bot_id: bot for bot_id, bot in self._bots.items()
 		        if bot.roomname() == room and bot.mentionable().lower() == nick.lower()}
+	
+	def _load_bots(self):
+		"""
+		_load_bots() -> None
+		
+		Load and create bots from self.bots_file.
+		"""
+		
+		if not self.bots_file:
+			return
+		
+		try:
+			with open(self.bots_file) as f:
+				bots = json.load(f)
+		except FileNotFoundError:
+			pass
+		else:
+			for bot_info in bots:
+				bot = self.create(bot_info["room"], password=bot_info["password"],
+				                  nick=bot_info["nick"])
+				bot.created_in = bot_info["created_in"]
+				bot.created_by = bot_info["created_by"]
+	
+	def _save_bots(self):
+		"""
+		_save_bots() -> None
+		
+		Save all current bots to self.bots_file.
+		"""
+		
+		if not self.bots_file:
+			return
+		
+		bots = []
+		
+		for bot_id, bot in self._bots.items():
+			bot_info = {}
+			
+			bot_info["room"]       = bot.roomname()
+			bot_info["password"]   = bot.password()
+			bot_info["nick"]       = bot.nick()
+			bot_info["created_in"] = bot.created_in
+			bot_info["created_by"] = bot.created_by
+			
+			bots.append(bot_info)
+		
+		with open(self.bots_file, "w") as f:
+			json.dump(bots, f)