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

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
MANIFEST="$ROOT_DIR/skills.yaml"
CACHE_DIR="$HOME/.ai-skills/registry"
LOCAL_SKILLS_DIR="$HOME/.ai-skills/skills"

if [[ ! -f "$MANIFEST" ]]; then
  echo "Missing skills manifest: $MANIFEST" >&2
  exit 1
fi

REGISTRY_URL="$(grep -E '^registry:' "$MANIFEST" | awk '{print $2}')"
if [[ -z "$REGISTRY_URL" ]]; then
  echo "Missing registry in skills.yaml" >&2
  exit 1
fi

mkdir -p "$CACHE_DIR" "$LOCAL_SKILLS_DIR"

if [[ -d "$CACHE_DIR/.git" ]]; then
  git -C "$CACHE_DIR" pull --ff-only
else
  git clone "$REGISTRY_URL" "$CACHE_DIR"
fi

SKILL_NAMES=$(awk '/^- name:/{print $2}' "$MANIFEST")

for SKILL in $SKILL_NAMES; do
  SRC="$CACHE_DIR/skills/$SKILL"
  DEST="$LOCAL_SKILLS_DIR/$SKILL"

  if [[ ! -d "$SRC" ]]; then
    echo "Missing skill in registry: $SKILL" >&2
    exit 1
  fi

  rm -rf "$DEST"
  cp -R "$SRC" "$DEST"
  echo "Synced skill: $SKILL"
done

echo "Done. Restart your editor if skills do not appear."