#!/usr/bin/env bash
# Run as root from the project directory on Debian/Ubuntu-like Linux hosts.
set -euo pipefail

APP_DIR=/opt/fetch-x
CONFIG_DIR=/etc/fetch-x
SERVICE_USER=fetchx

if [[ ${EUID} -ne 0 ]]; then
  echo "Run with sudo: sudo bash deploy/install-linux.sh" >&2
  exit 1
fi

if [[ ! -f fetch_x_posts.py || ! -f deploy/fetch-x.service ]]; then
  echo "Run this from the fetch_x project directory." >&2
  exit 1
fi

id -u "$SERVICE_USER" >/dev/null 2>&1 || useradd --system --create-home --shell /usr/sbin/nologin "$SERVICE_USER"
install -d -o "$SERVICE_USER" -g "$SERVICE_USER" -m 0750 "$APP_DIR"
install -o "$SERVICE_USER" -g "$SERVICE_USER" -m 0640 fetch_x_posts.py "$APP_DIR/fetch_x_posts.py"
install -d -m 0750 "$CONFIG_DIR"

if [[ ! -f "$CONFIG_DIR/fetch-x.env" ]]; then
  install -m 0600 /dev/null "$CONFIG_DIR/fetch-x.env"
  echo "Created $CONFIG_DIR/fetch-x.env. Add X_BEARER_TOKEN=... before starting the service."
fi

install -m 0644 deploy/fetch-x.service /etc/systemd/system/fetch-x.service
install -m 0644 deploy/fetch-x.timer /etc/systemd/system/fetch-x.timer
systemctl daemon-reload
systemctl enable --now fetch-x.timer
systemctl list-timers fetch-x.timer --no-pager