54 lines
1.7 KiB
Elixir

defmodule Scrapper.Queue.PlayerQueue do
require Logger
use GenServer
@hours_to_update_player 12
def start_link(_opts) do
GenServer.start_link(__MODULE__, {}, name: __MODULE__)
end
@spec init(any()) :: {:ok, {AMQP.Channel.t(), AMQP.Connection.t()}}
def init(_opts) do
{:ok, connection} = AMQP.Connection.open()
{:ok, channel} = AMQP.Channel.open(connection)
AMQP.Queue.declare(channel, "player", durable: true)
{:ok, {channel, connection}}
end
@spec queue_puuid(String.t()) :: nil
def queue_puuid(puuid) do
case LolAnalytics.Player.PlayerRepo.get_player(puuid) do
nil -> GenServer.call(__MODULE__, {:queue_player, puuid})
player_entry -> queue_if_not_updated?(player_entry)
end
end
@spec queue_if_not_updated?(%LolAnalytics.Player.PlayerSchema{}) :: nil
defp queue_if_not_updated?(player = %LolAnalytics.Player.PlayerSchema{}) do
now = DateTime.utc_now() |> DateTime.truncate(:second)
case player.last_processed_at do
nil ->
GenServer.call(__MODULE__, {:queue_player, player.puuid})
processed_at ->
diff_in_hours = DateTime.diff(now, processed_at, :hour)
if diff_in_hours > @hours_to_update_player do
GenServer.call(__MODULE__, {:queue_player, player.puuid})
else
Logger.info(
"Player #{player.puuid} already processed at #{player.last_processed_at}, diff was #{diff_in_hours}"
)
end
end
end
def handle_call({:queue_player, puuid}, _from, {channel, _} = state) do
LolAnalytics.Player.PlayerRepo.insert_player(puuid)
AMQP.Basic.publish(channel, "", "player", puuid)
{:reply, nil, state}
end
end