#!/bin/bash
# Install / re-install the Overlord Agent host-side service.
#
# Run as user `erik` from /home/erik/MosswartOverlord:
#   bash agent/install.sh
#
# Requires sudo for the systemd parts (you'll be prompted once).

set -euo pipefail

REPO_DIR="/home/erik/MosswartOverlord"
AGENT_DIR="$REPO_DIR/agent"
VENV_DIR="$AGENT_DIR/.venv"
SERVICE_FILE="$AGENT_DIR/overlord-agent.service"
SYSTEMD_TARGET="/etc/systemd/system/overlord-agent.service"

if [[ "$(pwd)" != "$REPO_DIR" ]]; then
    echo "Run from $REPO_DIR (currently in $(pwd))" >&2
    exit 1
fi

echo "==> Creating/updating venv at $VENV_DIR"
if [[ ! -d "$VENV_DIR" ]]; then
    python3 -m venv "$VENV_DIR"
fi
"$VENV_DIR/bin/pip" install --quiet --upgrade pip
"$VENV_DIR/bin/pip" install --quiet -r "$AGENT_DIR/requirements.txt"

echo "==> Installing systemd unit"
sudo cp "$SERVICE_FILE" "$SYSTEMD_TARGET"
sudo systemctl daemon-reload

echo "==> Enabling + starting overlord-agent"
sudo systemctl enable overlord-agent
sudo systemctl restart overlord-agent

sleep 1
echo "==> Status:"
sudo systemctl --no-pager status overlord-agent | head -15

echo ""
echo "==> Smoke test:"
curl -s http://127.0.0.1:8767/agent/health | python3 -m json.tool || true

echo ""
echo "Done. Logs: journalctl -u overlord-agent -f"