#!/usr/bin/env bash
# Pre-commit hook for editoria11y.
#
# 1. Refuses direct commits on the protected branch (3.0.x). PR merges happen
#    on GitHub and never hit this hook, so the only commits it blocks are
#    local work-in-progress landing straight on the default branch.
#    GitHub branch protection rules are the authoritative enforcement; this
#    hook is a local belt-and-suspenders check.
# 2. On every other branch, runs the full build + pack so the committed
#    dist/ is always in sync with src/.
#
# Install (one-time, per clone):
#   git config core.hooksPath scripts/hooks
#
# Bypass (use sparingly):
#   git commit --no-verify
set -euo pipefail

PROTECTED_BRANCH="3.0.x"
BRANCH=$(git symbolic-ref --short HEAD 2>/dev/null || echo "")

if [[ "$BRANCH" == "$PROTECTED_BRANCH" ]]; then
	echo "✗ Direct commits to '$PROTECTED_BRANCH' are not allowed." >&2
	echo "  Create a feature branch and open a pull request:" >&2
	echo "    git checkout -b my-change" >&2
	echo "    git commit ..." >&2
	echo "    gh pr create --base $PROTECTED_BRANCH" >&2
	echo "" >&2
	echo "  (To bypass in an emergency: git commit --no-verify)" >&2
	exit 1
fi

# Skip build if nothing under src/ is staged — saves time for doc-only or
# config-only commits.
if git diff --cached --name-only --diff-filter=ACMR | grep -q '^src/'; then
	echo "→ src/ changes staged; running full build…"
	npm run lint:fix
	npm run build
	npm run test
	# Re-stage any dist/ files the build regenerated so the commit ships them.
	git add dist/
else
	echo "→ No src/ changes staged; skipping build."
fi