Graham McIntire
c38596cc36
Oban cron worker runs every 4 hours, finds QSOs without weather data, discovers nearby ASOS/sounding stations, and enqueues WeatherFetchWorker jobs. Migrations run automatically on app start in production.
77 lines
2 KiB
Elixir
77 lines
2 KiB
Elixir
defmodule Microwaveprop.Workers.QsoWeatherEnqueueWorker do
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@moduledoc false
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use Oban.Worker, queue: :enqueue, max_attempts: 3
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alias Microwaveprop.Radio
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alias Microwaveprop.Weather
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alias Microwaveprop.Workers.WeatherFetchWorker
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@asos_radius_km 150
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@sounding_radius_km 300
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@impl Oban.Worker
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def perform(%Oban.Job{}) do
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qsos = Radio.unprocessed_qsos()
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if qsos != [] do
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jobs = build_weather_jobs(qsos)
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if jobs != [] do
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Oban.insert_all(jobs)
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end
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qso_ids = Enum.map(qsos, & &1.id)
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Radio.mark_weather_queued!(qso_ids)
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end
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:ok
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end
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def build_weather_jobs(qsos) do
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qsos
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|> Enum.flat_map(&jobs_for_qso/1)
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|> Enum.uniq_by(fn changeset -> changeset.changes.args end)
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end
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defp jobs_for_qso(qso) do
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lat = qso.pos1["lat"]
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lon = qso.pos1["lon"] || qso.pos1["lng"]
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asos_jobs = build_asos_jobs(lat, lon, qso.qso_timestamp)
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raob_jobs = build_raob_jobs(lat, lon, qso.qso_timestamp)
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asos_jobs ++ raob_jobs
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end
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defp build_asos_jobs(lat, lon, timestamp) do
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start_dt = DateTime.add(timestamp, -2 * 3600, :second)
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end_dt = DateTime.add(timestamp, 2 * 3600, :second)
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lat
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|> Weather.nearby_stations(lon, "asos", @asos_radius_km)
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|> Enum.map(fn station ->
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WeatherFetchWorker.new(%{
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"fetch_type" => "asos",
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"station_id" => station.id,
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"station_code" => station.station_code,
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"start_dt" => DateTime.to_iso8601(start_dt),
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"end_dt" => DateTime.to_iso8601(end_dt)
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})
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end)
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end
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defp build_raob_jobs(lat, lon, timestamp) do
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sounding_times = Weather.sounding_times_around(timestamp)
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stations = Weather.nearby_stations(lat, lon, "sounding", @sounding_radius_km)
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for station <- stations, sounding_time <- sounding_times do
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WeatherFetchWorker.new(%{
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"fetch_type" => "raob",
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"station_id" => station.id,
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"station_code" => station.station_code,
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"sounding_time" => DateTime.to_iso8601(sounding_time)
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})
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end
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end
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end
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