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

STACK_DIR=${STACK_DIR:-$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)}
HERMES_DATA_DIR=${HERMES_DATA_DIR:-/mnt/nvme-storage/appdata/Hermes-Agent}
PROFILE_MATRIX=${PROFILE_MATRIX:-$STACK_DIR/config/profile-matrix.json}
SKILL_ROOT=$STACK_DIR/platform/hermes/skills

die() { printf 'FEHLER: %s\n' "$*" >&2; exit 1; }
[[ $EUID -eq 0 ]] || die "Bitte als root ausführen."
[[ -s $PROFILE_MATRIX ]] || die "Profilmatrix fehlt: $PROFILE_MATRIX"

install_skill() {
  local source=$1 root=$2 name target
  name=${source%/SKILL.md}
  name=${name##*/}
  target=$root/platform/$name/SKILL.md
  grep -Fxq -- "name: $name" "$source" || \
    die "Skill-Quelle hat kein gültiges Frontmatter: $source"
  install -d -o 10000 -g 10000 -m 0750 "${target%/*}"
  if [[ -s $target ]] && ! cmp -s "$source" "$target"; then
    cp -a "$target" "$target.before-managed-update-$(date +%Y%m%d-%H%M%S)"
  fi
  install -o 10000 -g 10000 -m 0640 "$source" "$target"
  cmp -s "$source" "$target" || die "Skill-Synchronisierung fehlgeschlagen: $target"
}

mapfile -t profiles < <(jq -r '.profiles[].id' "$PROFILE_MATRIX")

for source in "$SKILL_ROOT"/*/SKILL.md; do
  [[ -s $source ]] || continue
  install_skill "$source" "$HERMES_DATA_DIR/skills"
  for profile in "${profiles[@]}"; do
    [[ -d $HERMES_DATA_DIR/profiles/$profile ]] || continue
    install_skill "$source" "$HERMES_DATA_DIR/profiles/$profile/skills"
  done
done

printf 'HERMES_SKILLS_OK\n'