-module(get_rack_location_task).
-behaviour(bt_task).
-export([
  get_params/0,
  run/3
]).

get_params() ->
  ["rack_id", "rack_location"].

run(#{"rack_id" := RackId_key, "rack_location" := RackLocation_key}, BB, _) -> 
  RackId = blackboard:eval(RackId_key, BB),
  case gproc:lookup_local_name({dummy_rack_location_service, RackId}) of
    undefined ->
      io:format("Failure: couldn't find rack location for ~p because rack locator service not found.~n", [RackId]),
      {failure, BB};
    RackLocationServicePid ->
      Location = dummy_rack_location_service:get_rack_location(RackLocationServicePid),
      io:format("Setting location for rack ~p to ~p~n", [RackId, Location]),
      NewBB = blackboard:write(RackLocation_key, Location, BB),
      {success, NewBB}
  end.