#!/usr/bin/env bash
# Seed a git recipe repo (recipes-production / recipes-playground) from
# the current launcher repo state (specs/tech-architecture/
# ha-addon-recipe-repos.md, step 6).
#
# The operator creates the bare repo on git.kilork.org FIRST; this script
# builds the layout, commits it, and prints the push command:
#
#   scripts/seed-recipe-repos.sh <name> [git-url]
#
# <name>     the repo name (recipes-production | recipes-playground)
# git-url    the git URL of the repo the operator created (printed in the
#            push instructions; a local path also works for a dry run)
#
# Layout (a subset of the launcher repo, per the spec):
#   recipes/<name>/…     # tracked recipe dirs (machine state like .lock is
#                        # gitignored → excluded by `git archive` for free)
#   docker-images/<dir>/ # build contexts (source of truth; optional when
#                        # the image is prebuilt in the registry)
#
# NOTE: no config.toml is copied. A recipe repo's config.toml is
# operator-curated and must be CREDENTIAL-FREE (the repo may be shared
# with other users): clusters/nccl only. Secrets (ssh user/key, HA
# url/token, mikrotik password, registry base) come from the add-on
# options, never from the repo — see the curated example in
# git.kilork.org/sm121/recipes.
set -euo pipefail
cd "$(dirname "$0")/.."

NAME="${1:-}"
URL="${2:-}"
if [ -z "$NAME" ]; then
  echo "usage: scripts/seed-recipe-repos.sh <name> [git-url]" >&2
  echo "  e.g. scripts/seed-recipe-repos.sh recipes-production https://git.kilork.org/sm121/recipes-production.git" >&2
  exit 1
fi

if ! git rev-parse --git-dir >/dev/null 2>&1; then
  echo "error: run this from the sm121-launcher repo (it reads the tracked state via git archive)" >&2
  exit 1
fi

PARENT="$(dirname "$(pwd)")"
OUT="$PARENT/$NAME"
if [ -e "$OUT" ]; then
  echo "error: $OUT already exists — refusing to clobber" >&2
  exit 1
fi

TMP="$(mktemp -d)"
trap 'rm -rf "$TMP"' EXIT

# The tracked state of the launcher repo (gitignored machine state —
# .lock ledgers, target/, scratch — is excluded for free).
git archive --prefix=repo/ HEAD | tar -x -C "$TMP"

mkdir -p "$OUT"
# NOTE: no config.toml is seeded — it is operator-curated and must stay
# credential-free (the repo may be shared with other users). The launcher
# repo's config.toml carries secrets (HA token, mikrotik password, ssh
# key path) and must never be copied into a shared repo.
[ -d "$TMP/repo/recipes" ] && cp -R "$TMP/repo/recipes" "$OUT/recipes"
[ -d "$TMP/repo/docker-images" ] && cp -R "$TMP/repo/docker-images" "$OUT/docker-images"

# A minimal README so the repo documents its own layout.
cat > "$OUT/README.md" <<EOF
# sm121 $NAME

A sm121 recipe repo (specs/tech-architecture/ha-addon-recipe-repos.md in
the launcher repo). Layout:

- `recipes/<name>/recipe.toml` — the recipes
- `docker-images/<dir>/` — image build contexts (source of truth;
  optional when the image is prebuilt in the registry)
- `config.toml` (operator-curated, NOT seeded by the script) — the shared
  cluster/config source of truth. CREDENTIAL-FREE by contract (this repo
  may be shared with other users): clusters/nccl only; the secrets (ssh
  user/key, HA url/token, mikrotik password, registry base) come from the
  add-on options (sm121_ssh_user, sm121_ssh_key_b64, sm121_ha_url,
  sm121_ha_token, sm121_registry_base, sm121_config_extra)

Seeded from the sm121-launcher repo on $(date -u +%Y-%m-%d).
EOF

git -C "$OUT" init -q
git -C "$OUT" add -A
git -C "$OUT" commit -qm "seed $NAME from sm121-launcher @ $(git rev-parse --short HEAD)"

N_RECIPES=$(find "$OUT/recipes" -name recipe.toml 2>/dev/null | wc -l | tr -d ' ')
N_IMAGES=$(find "$OUT/docker-images" -maxdepth 1 -mindepth 1 -type d 2>/dev/null | wc -l | tr -d ' ')
echo "seeded $OUT:"
echo "  recipes:       $N_RECIPES"
echo "  docker-images: $N_IMAGES dirs"
echo
echo "push it (the operator creates the repo first):"
if [ -n "$URL" ]; then
  echo "  git -C $OUT remote add origin $URL"
  echo "  git -C $OUT push -u origin $(git -C "$OUT" symbolic-ref --short HEAD)"
else
  echo "  git -C $OUT remote add origin <the git.kilork.org URL>"
  echo "  git -C $OUT push -u origin main"
fi
echo
echo "then add it to the launcher config (order = priority, first wins):"
echo "  [[recipe_repos]]"
echo "  url = \"${URL:-<git-url>}\""