#!/bin/sh
# Publish what `make release` built as a release on Gitea, which is where every Ham Lab
# looks for a newer build (Settings → Updates, and `update.url` in config.json).
#
#   make release && scripts/gitea-release.sh [--force]
#
# The token needs write:repository and is read from $HAMLAB_PUBLISH_TOKEN, else from
# ~/.config/hamlab-publish-token. It is never printed.
#
# A release is a deliberate act, not part of `make deploy`: deploying pushes this build to
# the machines this hub owns, while publishing offers it to every install everywhere.
set -eu

REPO=${HAMLAB_REPO:-https://git.bigham.dev/api/v1/repos/mitchell/hamlab}
DIST=${DIST:-dist}
FORCE=0
[ "${1:-}" != "--force" ] || FORCE=1

die() { printf '%s\n' "$*" >&2; exit 1; }

[ -f "$DIST/VERSION" ] || die "no $DIST/VERSION — run: make release"
VERSION=$(head -n 1 "$DIST/VERSION" | tr -cd 'A-Za-z0-9._+-')
[ -n "$VERSION" ] || die "$DIST/VERSION is empty"

TOKEN=${HAMLAB_PUBLISH_TOKEN:-}
if [ -z "$TOKEN" ] && [ -r "$HOME/.config/hamlab-publish-token" ]; then
  TOKEN=$(cat "$HOME/.config/hamlab-publish-token")
fi
[ -n "$TOKEN" ] || die "no publish token: set HAMLAB_PUBLISH_TOKEN or write ~/.config/hamlab-publish-token (Gitea → Settings → Applications, scope write:repository)"

api() { # method path [curl args...]
  m=$1; p=$2; shift 2
  curl -sS -X "$m" -H "Authorization: token $TOKEN" "$REPO$p" "$@"
}

SHA=$(git rev-parse HEAD)
echo "publishing $VERSION ($(echo "$SHA" | cut -c1-8)) to $REPO"

# An existing release for this version is replaced only when asked: re-publishing a version
# with different binaries is how an install ends up with something nobody can reproduce.
existing=$(api GET "/releases/tags/$VERSION" | python3 -c 'import json,sys
try: d = json.load(sys.stdin)
except Exception: d = {}
print(d.get("id") or "")' 2>/dev/null || true)
if [ -n "$existing" ]; then
  [ "$FORCE" = 1 ] || die "$VERSION is already published (release $existing). Re-publish with --force."
  echo "  replacing release $existing"
  api DELETE "/releases/$existing" -o /dev/null
fi

notes=$(git log -1 --pretty=%B | head -20)
payload=$(python3 -c 'import json,sys; print(json.dumps({"tag_name": sys.argv[1], "target": sys.argv[2], "name": sys.argv[1], "body": sys.argv[3], "draft": False, "prerelease": False}))' "$VERSION" "$SHA" "$notes")
id=$(printf '%s' "$payload" | api POST /releases -H 'Content-Type: application/json' -d @- | python3 -c 'import json,sys
d = json.load(sys.stdin)
if not d.get("id"): sys.exit("gitea refused the release: %s" % d.get("message", d))
print(d["id"])')
[ -n "$id" ] || die "could not create the release"
echo "  release $id created"

n=0
for f in "$DIST"/hamlab-linux-* "$DIST/SHA256SUMS" "$DIST/install.sh" "$DIST/VERSION"; do
  [ -f "$f" ] || continue
  name=$(basename "$f")
  api POST "/releases/$id/assets?name=$name" -F "attachment=@$f" -o /dev/null
  n=$((n + 1))
  echo "  + $name"
done
echo "published $VERSION with $n assets"
echo "  every Ham Lab pointed at this repo will offer it in Settings → Updates"