Generate Forecast Artifacts #13

	name: Generate Forecast Artifacts

	on:
	schedule:
	# 00z, 06z, 12z, and 18z artifacts after a two-hour data availability buffer.
	- cron: "30 2,8,14,20 * * *"
	workflow_dispatch:

	permissions:
	contents: write

	jobs:
	severe-composites:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- uses: actions/setup-python@v5
	with:
	python-version: "3.12"

	- name: Install backend dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt

	- name: Generate HRRR severe composite artifacts
	run: \|
	python scripts/generate_forecast_artifacts.py \
	--models hrrr \
	--regions conus \
	--variables effective_bulk_shear stp_approx scp ship critical_angle_composite \
	--hours auto

	- name: Verify HRRR CONUS severe composite coverage (f000-f048)
	# Fail the workflow before commit/push if any of the five severe
	# composites are missing hours or have malformed JSON. This prevents
	# silent regressions where the deploy ships an incomplete artifact set.
	run: python scripts/verify_forecast_artifacts.py

	- name: Commit artifact updates
	run: \|
	git config user.name "github-actions[bot]"
	git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
	git add forecast_artifacts
	if git diff --cached --quiet; then
	echo "No artifact changes to commit."
	else
	git commit -m "chore: refresh forecast artifacts"
	git push
	fi

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