#!/usr/bin/env bash
# Pantheon pre-commit hook
# Auto-syncs platform-specific agent files when canonical agents change.
# 
# Install: git config core.hooksPath .githooks

set -euo pipefail

CHANGED_AGENTS=$(git diff --cached --name-only --diff-filter=ACMR | grep -E '^agents/[a-z-]+\.agent\.md$' || true)

if [ -z "$CHANGED_AGENTS" ]; then
  exit 0
fi

echo "🔧 Canonical agents modified — syncing platform files..."
node scripts/sync-platforms.mjs

# Stage all generated platform files
# Patterns for each platform's output directory
git add platform/claude/agents/*.md
git add platform/cline/.clinerules/*
git add platform/continue/rules/*.md
git add platform/cursor/rules/*.mdc
git add platform/opencode/agents/*.md
git add platform/windsurf/rules/*.md

echo "✅ Platform files synced and staged"

# Also update CHANGELOG Unreleased section if there are new commits
if ! git diff --cached --name-only | grep -q '^CHANGELOG\.md$'; then
  bash scripts/update-changelog.sh 2>/dev/null || true
  git add CHANGELOG.md 2>/dev/null || true
fi