Alek Ratzloff
8cddd8e78e
This is probably going to be necessary to avoid race conditions in the ETS storage Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
51 lines
1.2 KiB
Elixir
51 lines
1.2 KiB
Elixir
defmodule Omnibot.Contrib.Markov.Bot do
|
|
use Omnibot.Plugin
|
|
alias Omnibot.Contrib.Markov.Chain
|
|
|
|
@impl true
|
|
def on_init(_cfg) do
|
|
# Create the markov database
|
|
path = String.to_atom(cfg()[:path])
|
|
{:ok, db} = :dets.open_file(path, [:named_table])
|
|
chains = :ets.new(:markov_chains, [:public])
|
|
:dets.to_ets(db, chains)
|
|
:dets.close(db)
|
|
end
|
|
|
|
@impl true
|
|
def on_channel_msg(_irc, channel, nick, msg) do
|
|
train(channel, nick, msg)
|
|
end
|
|
|
|
def train(channel, user, msg) do
|
|
chain = (user_chain(channel, user) || create_user_chain(channel, user))
|
|
|> Chain.train(msg)
|
|
true = update_user_chain(channel, user, chain)
|
|
end
|
|
|
|
def user_chain(channel, user) do
|
|
db = state()
|
|
case :ets.lookup(db, {channel, user}) do
|
|
[] -> nil
|
|
[{{^channel, ^user}, chains}] -> chains
|
|
end
|
|
end
|
|
|
|
def update_user_chain(channel, user, chain) do
|
|
db = state()
|
|
case user_chain(channel, user) do
|
|
nil -> :ets.insert_new(db, {{channel, user}, chain})
|
|
chain -> :ets.insert(db, {{channel, user}, chain})
|
|
end
|
|
end
|
|
|
|
defp create_user_chain(channel, user) do
|
|
true = update_user_chain(channel, user, %Chain{order: cfg()[:order]})
|
|
user_chain(channel, user)
|
|
end
|
|
|
|
def save_chains() do
|
|
|
|
end
|
|
end
|