#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
TARGET_ROOT="${ROOT_DIR}/pi-package/skills"
SKILL_FAMILIES=(
  "atlassian"
  "create-plan"
  "do-task"
  "implement-plan"
  "web-automation"
)

extract_skill_name() {
  local skill_md=$1
  awk '/^name:/ { print $2; exit }' "$skill_md"
}

replace_dir() {
  local source=$1
  local target=$2

  if [[ -z "$target" || "$target" == "/" || "$target" == "." || "$target" == ".." ]]; then
    echo "Refusing to sync into unsafe target: $target" >&2
    exit 1
  fi

  case "$target" in
    "${ROOT_DIR}"/*) ;;
    *)
      echo "Refusing to remove target outside repo root: $target" >&2
      exit 1
      ;;
  esac

  rm -rf "$target"
  mkdir -p "$target"
  cp -R "${source}/." "$target/"
}

rm -rf "$TARGET_ROOT"
mkdir -p "$TARGET_ROOT"

for family in "${SKILL_FAMILIES[@]}"; do
  source_dir="${ROOT_DIR}/skills/${family}/pi"
  skill_md="${source_dir}/SKILL.md"

  if [[ ! -f "$skill_md" ]]; then
    echo "Missing source SKILL.md: $skill_md" >&2
    exit 1
  fi

  skill_name=$(extract_skill_name "$skill_md")
  if [[ -z "$skill_name" ]]; then
    echo "Could not derive skill name from $skill_md" >&2
    exit 1
  fi

  replace_dir "$source_dir" "${TARGET_ROOT}/${skill_name}"
done

echo "Synced pi package skill mirror into ${TARGET_ROOT}."