#!/bin/bash
# Install/update homelab-mcp on LXC 105 (apps). Idempotent.
# Triggered by the gitea webhook or run by hand.
set -euo pipefail

REPO_DIR=${REPO_DIR:-/opt/homelab-mcp}

cd "$REPO_DIR"
echo "[deploy] git pull"
git pull --ff-only

echo "[deploy] ensure python venv + deps"
if [ ! -d /opt/homelab-mcp/.venv ]; then
    python3 -m venv /opt/homelab-mcp/.venv
fi
/opt/homelab-mcp/.venv/bin/pip install --quiet --upgrade pip
/opt/homelab-mcp/.venv/bin/pip install --quiet "mcp[cli]" pyyaml

echo "[deploy] install systemd units"
install -m 644 mcp/deploy/homelab-mcp.service \
               /etc/systemd/system/homelab-mcp.service
install -m 644 mcp/deploy/webhook/homelab-mcp-deploy.service \
               /etc/systemd/system/homelab-mcp-deploy.service

echo "[deploy] context clone for the MCP server"
# The MCP server reads from a local clone of Homelab-Docs at /opt/homelab-context
# (the same path every client uses). Bootstrap should already have created this;
# if not, fail loudly.
if [ ! -d /opt/homelab-context/.git ]; then
    echo "  /opt/homelab-context is not a git clone — run bootstrap.sh first." >&2
    exit 1
fi

systemctl daemon-reload
if systemctl is-active --quiet homelab-mcp.service; then
    systemctl restart homelab-mcp.service
fi
if systemctl is-active --quiet homelab-mcp-deploy.service; then
    systemctl restart homelab-mcp-deploy.service
fi

echo "[deploy] done"
echo "First-time enable:"
echo "  systemctl enable --now homelab-mcp.service homelab-mcp-deploy.service"
echo "Webhook first-time setup (generates secret):"
echo "  $REPO_DIR/mcp/deploy/webhook/install.sh"