#!/bin/sh
# Pre-commit hook: leak gate on every commit, then format and lint staged Swift files.
# Install per clone (hooks are not cloned): git config core.hooksPath .githooks
# See formatting-and-linting.md. CI re-runs both over the whole tree as the hard gate.

set -e

# Public-safe leak gate runs on EVERY commit (this repo is mostly markdown, so it must
# not be gated behind staged Swift files). See scripts/leak-gate.sh.
sh "$(dirname "$0")/../scripts/leak-gate.sh"

# Namespacing gate (one non-private top-level type per file) runs whole-tree on every
# commit, matching code-style.md. Cheap, and vacuous in a repo with no Swift sources.
sh "$(dirname "$0")/../scripts/check-namespacing.sh"
sh "$(dirname "$0")/../scripts/check-file-names.sh"
sh "$(dirname "$0")/../scripts/check-links.sh"
sh "$(dirname "$0")/../scripts/check-rule-structure.sh"
sh "$(dirname "$0")/../scripts/check-core-sync.sh"
sh "$(dirname "$0")/../scripts/test-gates.sh"
sh "$(dirname "$0")/../scripts/check-changelog-touched.sh"

# Version-bump gate: any rule change must bump VERSION (the freshness marker downstream
# repos compare against). Cheap, whole staged set. See scripts/check-version-bumped.sh.
sh "$(dirname "$0")/../scripts/check-version-bumped.sh"

# Lint only the Swift this commit touches. A commit with no Swift files (docs, config,
# this rules repo) has nothing to format or lint, so stop here.
swift_files=$(git diff --cached --name-only --diff-filter=ACM -- '*.swift')
if [ -z "$swift_files" ]; then
    exit 0
fi

if command -v swiftformat >/dev/null 2>&1; then
    printf '%s\n' "$swift_files" | xargs swiftformat --lint --config .swiftformat
else
    echo "pre-commit: swiftformat not found; install it so formatting is enforced locally." >&2
    exit 1
fi

if command -v swiftlint >/dev/null 2>&1; then
    printf '%s\n' "$swift_files" | xargs swiftlint lint --strict --config .swiftlint.yml
else
    echo "pre-commit: swiftlint not found; install it so linting is enforced locally." >&2
    exit 1
fi