#!/usr/bin/env bash
# Test: promote.sh extracts a tag's tree into the public repo working dir (excluding .git + .github,
# and anything marked `export-ignore` in .gitattributes — internal docs), keeps CHANGELOG.md public,
# commits "Release <tag>" and creates the tag. The public repo's own .git is preserved.
set -euo pipefail
here="$(cd "$(dirname "$0")" && pwd)"
work="$(mktemp -d)"; trap 'rm -rf "$work"' EXIT
export GIT_AUTHOR_NAME=t GIT_AUTHOR_EMAIL=t@t GIT_COMMITTER_NAME=t GIT_COMMITTER_EMAIL=t@t

# source repo with a tag, a .github dir, an .env.example, a public CHANGELOG.md, and internal files
# that .gitattributes marks export-ignore (must NOT reach the public repo).
git init -q "$work/src"
mkdir -p "$work/src/.github/workflows" "$work/src/docs/superpowers"
printf 'app\n' > "$work/src/app.txt"
printf 'CLUSEV_REPOSITORY=\n' > "$work/src/.env.example"
printf 'name: ci\n' > "$work/src/.github/workflows/ci.yml"
printf '# Changelog\n' > "$work/src/CHANGELOG.md"
printf '/CLAUDE.md export-ignore\n/docs export-ignore\n' > "$work/src/.gitattributes"
printf 'internal\n' > "$work/src/CLAUDE.md"
printf 'internal spec\n' > "$work/src/docs/superpowers/spec.md"
git -C "$work/src" add -A && git -C "$work/src" commit -qm init && git -C "$work/src" tag v1.0.0

# empty public repo (its own history)
git init -q "$work/pub"

bash "$here/promote.sh" "$work/src" v1.0.0 "$work/pub" "Release v1.0.0"

test -f "$work/pub/app.txt"        || { echo "FAIL: tree not copied"; exit 1; }
test -f "$work/pub/.env.example"   || { echo "FAIL: .env.example missing"; exit 1; }
test -f "$work/pub/CHANGELOG.md"   || { echo "FAIL: CHANGELOG.md must stay public (Versions page fetches it)"; exit 1; }
test ! -d "$work/pub/.github"      || { echo "FAIL: .github leaked to public"; exit 1; }
test ! -f "$work/pub/CLAUDE.md"    || { echo "FAIL: internal CLAUDE.md leaked to public"; exit 1; }
test ! -d "$work/pub/docs"         || { echo "FAIL: internal docs/ leaked to public"; exit 1; }
test -d "$work/pub/.git"           || { echo "FAIL: public .git clobbered"; exit 1; }
git -C "$work/pub" rev-parse v1.0.0 >/dev/null 2>&1 || { echo "FAIL: tag missing"; exit 1; }
git -C "$work/pub" log -1 --pretty=%s | grep -qx 'Release v1.0.0' || { echo "FAIL: commit message"; exit 1; }

# Beta -> stable: stable re-tags the SAME source commit, so the extracted tree is byte-identical
# to the last promotion. Promote a second tag (same tree) into the SAME pub repo and assert it
# still creates the tag — guards against `git commit` aborting on "nothing to commit".
git -C "$work/src" tag v1.0.1 v1.0.0
bash "$here/promote.sh" "$work/src" v1.0.1 "$work/pub" "Release v1.0.1"
git -C "$work/pub" rev-parse v1.0.1 >/dev/null 2>&1 || { echo "FAIL: identical-tree tag missing"; exit 1; }
git -C "$work/pub" log -1 --pretty=%s | grep -qx 'Release v1.0.1' || { echo "FAIL: identical-tree commit message"; exit 1; }
echo "PASS"