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lib/ex_esdb/leader_system.ex

defmodule ExESDB.LeaderSystem do
@moduledoc """
This module supervises the Leader Subsystem.
"""
use Supervisor
require Logger
alias ExESDB.Themes, as: Themes
############### PlUMBIng ############
#
def start_link(opts),
do:
Supervisor.start_link(
__MODULE__,
opts,
name: __MODULE__
)
@impl true
def init(config) do
IO.puts("#{Themes.leader_system(self(), "is UP!")}")
Process.flag(:trap_exit, true)
children = [
# LeaderTracker must start first to establish subscription tracking infrastructure
{ExESDB.LeaderTracker, config},
# LeaderWorker depends on the tracking infrastructure being ready
{ExESDB.LeaderWorker, config}
]
# Use :rest_for_one because LeaderWorker depends on LeaderTracker
Supervisor.init(children, strategy: :rest_for_one)
end
end