#!/usr/bin/env bash
# The package release gate (ADR 0053): what must pass before a future step may publish a package
# train. It publishes nothing.
#
#   bash scripts/test-package-release.sh [--allow-modified]
#
# 1. Builds the public package train from this checkout (`scripts/package-release.ts`): clean build
#    output, pack, inspect, release manifest.
# 2. Builds it again from a separate worktree of the same commit, at another absolute path, and
#    requires the two release directories to be byte-identical: every tarball, SHA256SUMS, and the
#    manifest.
# 3. Installs the release into the standalone fixture and proves it builds, packages, and verifies
#    (`scripts/test-standalone-module.sh`).
#
# `--allow-modified` is for local development on a modified source tree. The second build is then
# made in this checkout again, because a worktree of the commit would not hold the modifications.
set -euo pipefail

repository_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
allow_modified=()
if [[ "${1:-}" == "--allow-modified" ]]; then
  allow_modified=(--allow-modified)
elif (($#)); then
  echo "usage: test-package-release.sh [--allow-modified]" >&2
  exit 64
fi

work="$(mktemp -d "${TMPDIR:-/tmp}/ekklesia-package-release-XXXXXX")"
worktree="$work/second-checkout"
cleanup() {
  if [[ -d "$worktree" ]]; then
    git -C "$repository_root" worktree remove --force "$worktree" >/dev/null 2>&1 || true
  fi
  rm -rf "$work"
}
trap cleanup EXIT

echo "==> Building the package train"
node "$repository_root/scripts/package-release.ts" --out "$work/first" "${allow_modified[@]}"
release="$(find "$work/first" -mindepth 1 -maxdepth 1 -type d)"

echo "==> Building it again, to prove the artifacts are reproducible"
if ((${#allow_modified[@]})); then
  node "$repository_root/scripts/package-release.ts" --out "$work/second" "${allow_modified[@]}" >/dev/null
else
  git -C "$repository_root" worktree add --detach --quiet "$worktree" HEAD
  (cd "$worktree" && pnpm install --offline --frozen-lockfile --reporter=silent)
  node "$worktree/scripts/package-release.ts" --out "$work/second" >/dev/null
fi
if ! diff -r "$release" "$(find "$work/second" -mindepth 1 -maxdepth 1 -type d)"; then
  echo "package release gate failed: two builds of the same commit produced different artifacts" >&2
  exit 1
fi
echo "    byte-identical: $(ls "$release" | wc -l) files"

echo "==> Consuming the release from a standalone module"
bash "$repository_root/scripts/test-standalone-module.sh" --release "$release" "${allow_modified[@]}"

echo "Package release gate passed."