prop/lib/microwaveprop/propagation/grid_task_enqueuer.ex
Graham McIntire cd7f2fc2b8
feat(propagation): Phase 3 Stream A cutover — Rust owns f00..f18
The hourly cron now only seeds grid_tasks. The chain step, native-duct
merge, NEXRAD merge, commercial-link merge, scoring, ProfilesFile
write, and band-score writes all moved to rust/prop_grid_rs.

Elixir changes:
- GridTaskEnqueuer.seed_with_analysis/1: inserts 1 kind='analysis' row
  (f00) + 18 kind='forecast' rows (f01..f18).
- PropagationGridWorker: stripped from 423 LOC to a thin seeder.
  perform(%{}) → GridTaskEnqueuer.seed_with_analysis.
  Deleted: process_forecast_hour, merge_native_duct_data,
  merge_nexrad_data, merge_commercial_link_data, compute_scores_*,
  persist_profiles, record_run_timing (Rust emits spans to Prometheus
  instead), apply_nexrad_observations, apply_duct_grid, timed helpers.
  Test rewritten for the new shape: 0 Oban fan-out jobs, 19 grid_tasks
  rows with the expected kind distribution.

HrrrNativeClient and NexradClient remain — they have other callers
(HrrrNativeGridWorker for per-QSO duct batch; NexradWorker and
CommonVolumeRadarWorker for per-contact radar). Only f00's direct
use moved.
2026-04-19 18:13:41 -05:00

115 lines
3.2 KiB
Elixir

defmodule Microwaveprop.Propagation.GridTaskEnqueuer do
@moduledoc """
Seeds `grid_tasks` rows for the Rust `prop-grid-rs` worker.
Called from `PropagationGridWorker.seed_chain/0`. Rust claims
kind='forecast' and kind='analysis' rows, with analysis lanes
taking priority (see `claim_next_analysis` in the Rust db module).
Inserts are idempotent via the `(run_time, forecast_hour, kind)`
unique index — re-seeding the same cycle is a no-op.
"""
alias Microwaveprop.Repo
require Logger
@max_forecast_hour 18
@doc """
Seed one kind='analysis' row (f00) plus 18 kind='forecast' rows
(f01..f18) for `run_time`. This is the Phase 3 Stream A cutover
shape: Rust owns the entire chain end-to-end.
"""
@spec seed_with_analysis(DateTime.t()) :: {:ok, non_neg_integer()} | {:error, term()}
def seed_with_analysis(%DateTime{} = run_time) do
run_time = DateTime.truncate(run_time, :second)
now = DateTime.truncate(DateTime.utc_now(), :microsecond)
analysis_row = %{
id: Ecto.UUID.bingenerate(),
run_time: run_time,
forecast_hour: 0,
valid_time: run_time,
status: "queued",
attempt: 0,
kind: "analysis",
claimed_at: nil,
completed_at: nil,
error: nil,
inserted_at: now,
updated_at: now
}
forecast_rows =
for fh <- 1..@max_forecast_hour do
%{
id: Ecto.UUID.bingenerate(),
run_time: run_time,
forecast_hour: fh,
valid_time: DateTime.add(run_time, fh * 3600, :second),
status: "queued",
attempt: 0,
kind: "forecast",
claimed_at: nil,
completed_at: nil,
error: nil,
inserted_at: now,
updated_at: now
}
end
do_insert([analysis_row | forecast_rows], run_time)
end
@doc """
Legacy: seed only kind='forecast' rows (f01..f18). Retained for
tooling that needs to re-seed the forecast lane without touching
the analysis row. `seed_with_analysis/1` is the production path.
"""
@spec seed(DateTime.t()) :: {:ok, non_neg_integer()} | {:error, term()}
def seed(%DateTime{} = run_time) do
run_time = DateTime.truncate(run_time, :second)
now = DateTime.truncate(DateTime.utc_now(), :microsecond)
rows =
for fh <- 1..@max_forecast_hour do
%{
id: Ecto.UUID.bingenerate(),
run_time: run_time,
forecast_hour: fh,
valid_time: DateTime.add(run_time, fh * 3600, :second),
status: "queued",
attempt: 0,
kind: "forecast",
claimed_at: nil,
completed_at: nil,
error: nil,
inserted_at: now,
updated_at: now
}
end
do_insert(rows, run_time)
end
defp do_insert(rows, run_time) do
{count, _} =
Repo.insert_all("grid_tasks", rows,
on_conflict: :nothing,
conflict_target: [:run_time, :forecast_hour, :kind]
)
if count > 0 do
Logger.info("GridTaskEnqueuer: seeded #{count} grid_tasks for run_time=#{run_time}")
else
Logger.info("GridTaskEnqueuer: run_time=#{run_time} already seeded")
end
{:ok, count}
rescue
e ->
Logger.error("GridTaskEnqueuer: seed failed: #{inspect(e)}")
{:error, e}
end
end