172 lines
6.4 KiB
Python
172 lines
6.4 KiB
Python
import ruamel.yaml as yaml
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import asyncio
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import rethinkdb as r
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import pendulum
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loop = asyncio.get_event_loop()
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# Ensure that the required config.yml file actually exists
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try:
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with open("config.yml", "r") as f:
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global_config = yaml.load(f)
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except FileNotFoundError:
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print("You have no config file setup! Please use config.yml.sample to setup a valid config file")
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quit()
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try:
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bot_token = global_config["bot_token"]
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except KeyError:
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print("You have no bot_token saved, this is a requirement for running a bot.")
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print("Please use config.yml.sample to setup a valid config file")
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quit()
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try:
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owner_ids = global_config["owner_id"]
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except KeyError:
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print("You have no owner_id saved! You're not going to be able to run certain commands without this.")
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print("Please use config.yml.sample to setup a valid config file")
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quit()
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# This is a simple class for the cache concept, all it holds is it's own key and the values
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# With a method that gets content based on it's key
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class Cache:
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def __init__(self, key):
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self.key = key
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self.values = {}
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self.refreshed = pendulum.utcnow()
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loop.create_task(self.update())
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async def update(self):
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self.values = await _get_content(self.key)
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self.refreshed = pendulum.utcnow()
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# Default bot's description
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bot_description = global_config.get("description")
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# Bot's default prefix for commands
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default_prefix = global_config.get("command_prefix", "!")
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# The key for bots.discord.pw and carbonitex
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discord_bots_key = global_config.get('discord_bots_key', "")
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carbon_key = global_config.get('carbon_key', "")
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# The invite link for the server made for the bot
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dev_server = global_config.get("dev_server", "")
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# The variables needed for sharding
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shard_count = global_config.get('shard_count', '')
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shard_id = global_config.get('shard_id', '')
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# A list of all the outputs for the battle command
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battle_wins = global_config.get("battleWins", [])
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# The default status the bot will use
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default_status = global_config.get("default_status", "")
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# The steam API key
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steam_key = global_config.get("steam_key", "")
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# The rethinkdb hostname
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db_host = global_config.get('db_host', 'localhost')
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# The rethinkdb database name
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db_name = global_config.get('db_name', 'Discord_Bot')
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# The rethinkdb certification
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db_cert = global_config.get('db_cert', '')
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# The rethinkdb port
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db_port = global_config.get('db_port', 28015)
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# The user and password assigned
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db_user = global_config.get('db_user', 'admin')
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db_pass = global_config.get('db_pass', '')
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# We've set all the options we need to be able to connect
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# so create a dictionary that we can use to unload to connect
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# db_opts = {'host': db_host, 'db': db_name, 'port': db_port, 'ssl':
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# {'ca_certs': db_cert}, 'user': db_user, 'password': db_pass}
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db_opts = {'host': db_host, 'db': db_name, 'port': db_port, 'user': db_user, 'password': db_pass}
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possible_keys = ['prefixes', 'battling', 'battle_records', 'boops', 'server_alerts', 'user_notifications',
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'nsfw_channels', 'custom_permissions', 'rules', 'overwatch', 'picarto', 'twitch', 'strawpolls', 'tags',
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'tictactoe', 'bot_data', 'command_manage']
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# This will be a dictionary that holds the cache object, based on the key that is saved
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cache = {}
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sharded_data = {}
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# Populate cache with each object
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for k in possible_keys:
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cache[k] = Cache(k)
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def command_prefix(bot, message):
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# We do not want to make a query for every message that is sent
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# So assume it's in cache, or it doesn't exist
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# If the prefix does exist in the database and isn't in our cache; too bad, something has messed up
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# But it is not worth a query for every single message the bot detects, to fix
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try:
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prefix = cache['prefixes'].values.get(message.server.id)
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return prefix or default_prefix
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except KeyError:
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return default_prefix
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async def save_content(table: str, content):
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# We need to make sure we're using asyncio
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r.set_loop_type("asyncio")
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# Just connect to the database
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conn = await r.connect(**db_opts)
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# We need to make at least one query to ensure the key exists, so attempt to create it as our query
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try:
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await r.table_create(table).run(conn)
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except r.ReqlOpFailedError:
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pass
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# So the table already existed, or it has now been created, we can update the data now
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# Since we're handling everything that is rewritten in the code itself, we just need to delete then insert
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await r.table(table).delete().run(conn)
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await r.table(table).insert(content).run(conn)
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await conn.close()
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# Now that we've saved the new content, we should update our cache
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cached = cache.get(table)
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# While this should theoretically never happen, we just want to make sure
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if cached is None:
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cache[table] = Cache(table)
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else:
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loop.create_task(cached.update())
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async def get_content(key: str):
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cached = cache.get(key)
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# We want to check here if the key exists in cache, and it was not created more than an hour ago
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# We also want to make sure that if what we're getting in cache has content
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# If not, lets make sure something didn't go awry, by getting from the database instead
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# If we found this object not cached, cache it
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if cached is None:
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value = await _get_content(key)
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cache[key] = Cache(key)
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# Otherwise, check our timeout and make sure values is invalid
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# If either of these are the case, we want to updated our values, and get our current data from the database
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elif len(cached.values) == 0 or (pendulum.utcnow() - cached.refreshed).hours >= 1:
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value = await _get_content(key)
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loop.create_task(cached.update())
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# Otherwise, we have valid content in cache, use it
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else:
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value = cached.values
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return value
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# This is our internal method to get content from the database
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async def _get_content(key: str):
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# We need to make sure we're using asyncio
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r.set_loop_type("asyncio")
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# Just connect to the database
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conn = await r.connect(**db_opts)
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# We should only ever get one result, so use it if it exists, otherwise return none
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try:
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cursor = await r.table(key).run(conn)
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items = list(cursor.items)[0]
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await conn.close()
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except (IndexError, r.ReqlOpFailedError):
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await conn.close()
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return {}
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# Rethink db stores an internal id per table, delete this and return the rest
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del items['id']
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return items
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