prop/lib/microwaveprop/workers/rover_mission_reconcile_worker.ex
2026-06-16 12:38:08 -05:00

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defmodule Microwaveprop.Workers.RoverMissionReconcileWorker do
@moduledoc """
Async reconciler for one rover-planning mission's path matrix.
Form saves (mission edits, add/remove rover site) enqueue this job
instead of running the reconcile inline — for a mission with many
rover sites × stations × bands the inline path produced a multi-
hundred-row Multi transaction + as many `Oban.insert/1` calls,
which made the form submit feel sluggish.
The reconcile itself is idempotent: deleting stale (mission_id,
rover_location_id, station_id, band_mhz) rows, leaving :complete
rows in place, and enqueueing per-pair compute jobs only for the
tuples that aren't already represented.
"""
use Oban.Pro.Worker,
queue: :terrain,
priority: 3,
max_attempts: 3,
unique: [
period: 60,
keys: [:mission_id],
states: :incomplete
]
import Ecto.Query
alias Microwaveprop.Repo
alias Microwaveprop.RoverPlanning
alias Microwaveprop.RoverPlanning.Mission
alias Microwaveprop.RoverPlanning.Station
@impl Oban.Pro.Worker
def process(%Oban.Job{args: %{"mission_id" => mission_id}}) do
case Repo.get(Mission, mission_id) do
nil ->
:ok
mission ->
mission
|> Repo.preload([:user, stations: from(s in Station, order_by: s.position)])
|> RoverPlanning.reconcile_mission_paths()
end
end
end