#!/usr/bin/env bash
# setup-hermes-soul.sh — auto-provisions Hermes SOUL.md from canonical HERMES.md.
# Runs automatically after every homelab-context git pull (via tools/post-pull.sh).
#
# What it does:
#   - Detects if Hermes Agent is installed (~/.hermes/SOUL.md exists)
#   - If yes, copies the canonical HERMES.md content into SOUL.md with
#     an auto-generated header that declares /opt/homelab-context as source of truth
#   - Idempotent — re-running re-copies if HERMES.md content changed
#
# For non-Hermes agents (Goose, Claude Code, etc.), this script is a no-op.
# Those agents use the `.goosehints` symlink mechanism instead.

set -euo pipefail

CONTEXT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
HERMES_MD="$CONTEXT_DIR/.agents/HERMES.md"
SOUL_MD="${HOME}/.hermes/SOUL.md"

# Colors for output (only when connected to a terminal)
if [ -t 1 ]; then
  GREEN='\033[0;32m'; YELLOW='\033[1;33m'; NC='\033[0m'
else
  GREEN=''; YELLOW=''; NC=''
fi
ok()   { echo -e "${GREEN}[hermes-soul]${NC} $1"; }
skip() { echo -e "${YELLOW}[hermes-soul]${NC} $1"; }

# --- 1. Check if Hermes is installed ---
if [ ! -f "$SOUL_MD" ]; then
  skip "hermes not installed (~/.hermes/SOUL.md not found) — skipping"
  exit 0
fi

# --- 2. Check if canonical HERMES.md exists ---
if [ ! -f "$HERMES_MD" ]; then
  echo "[hermes-soul] WARNING: $HERMES_MD not found — skipping"
  exit 0
fi

# --- 3. Write SOUL.md with canon source header + HERMES.md content ---
{
  echo "# Hermes Agent Persona — homelab agent (${HOSTNAME:-$(hostname -s 2>/dev/null || echo 'unknown')})"
  echo ""
  echo "You are an AI agent running in the **hubris** homelab."
  echo ""
  cat << 'PRE'
## Source of truth

The homelab-context repo at `/opt/homelab-context/` is the single source of truth for:
- Fleet topology (`inventory.yaml`, `inventory.yaml`)
- Service endpoints and credentials
- Agent behaviour and conventions

This SOUL.md is auto-generated from `/opt/homelab-context/HERMES.md` by
`tools/setup-hermes-soul.sh`. Do not edit SOUL.md directly — edit HERMES.md
in the homelab-context repo instead. Changes propagate automatically on the
next sync or by running:

    sudo homelab sync

---

PRE
  cat "$HERMES_MD"
} > "$SOUL_MD"

ok "SOUL.md provisioned from HERMES.md ($(wc -l < "$SOUL_MD") lines)"