#!/usr/bin/env bash
# install-host-agent.sh — install hernani user systemd units on koopa
#
#   # on koopa as hernani:
#   ~/src/taler-monitoring/host-agent/install-host-agent.sh
#   # or from laptop:
#   ./install-host-agent.sh --remote koopa-external
#
# Suite tree is ONLY ~/src/taler-monitoring (standalone repo). No koopa-admin-log.
#
set -euo pipefail
ROOT=$(cd "$(dirname "$0")" && pwd)
REMOTE="${1:-}"
[ "${1:-}" = "--remote" ] && REMOTE="${2:-koopa-external}"

SUITE_URL="${SUITE_GIT_URL:-https://git.hacktivism.ch/hernani/taler-monitoring.git}"

install_local() {
  local mon home_unit
  mon=$(cd "$ROOT/.." && pwd)
  if [ -d "$HOME/src/taler-monitoring/.git" ] || [ -d "$HOME/src/taler-monitoring" ]; then
    mon="$HOME/src/taler-monitoring"
  fi
  home_unit="$HOME/.config/systemd/user"
  mkdir -p "$home_unit" \
    "$HOME/.local/state/taler-hacktivism-monitoring" \
    "$HOME/monitoring-sites-staging" \
    "$HOME/.config/taler-monitoring" \
    "$HOME/src"

  # Local env (never in git) — create from example if missing
  if [ ! -f "$HOME/.config/taler-monitoring/env" ] && [ -f "$ROOT/env.example" ]; then
    cp "$ROOT/env.example" "$HOME/.config/taler-monitoring/env"
    echo "created ~/.config/taler-monitoring/env"
  fi

  # Ensure suite git clone at canonical path
  if [ ! -d "$HOME/src/taler-monitoring/.git" ]; then
    if [ -d "$mon/.git" ] && [ "$mon" != "$HOME/src/taler-monitoring" ]; then
      mkdir -p "$HOME/src"
      ln -sfn "$mon" "$HOME/src/taler-monitoring"
      echo "symlink $HOME/src/taler-monitoring → $mon"
    else
      echo "clone $SUITE_URL → $HOME/src/taler-monitoring"
      git clone "$SUITE_URL" "$HOME/src/taler-monitoring" \
        || echo "WARN: clone failed (auth/network) — using tree at $mon if present"
    fi
  fi
  mon="$HOME/src/taler-monitoring"
  # Convenience link (update-suite.sh also creates this)
  ln -sfn "$mon" "$HOME/taler-monitoring" 2>/dev/null || true

  # Ensure suite is executable
  chmod +x "$mon"/taler-monitoring.sh "$mon"/check_*.sh 2>/dev/null || true
  chmod +x "$mon/host-agent"/*.sh 2>/dev/null || true
  chmod +x "$mon/site-gen"/*.sh "$mon/site-gen/console_to_html.py" 2>/dev/null || true

  install -m 644 "$ROOT/taler-monitoring-hacktivism.service" "$home_unit/"
  install -m 644 "$ROOT/taler-monitoring-hacktivism.path" "$home_unit/"
  install -m 644 "$ROOT/taler-monitoring-hacktivism.timer" "$home_unit/"
  install -m 644 "$ROOT/taler-monitoring-surface.service" "$home_unit/"
  install -m 644 "$ROOT/taler-monitoring-surface.timer" "$home_unit/"
  # optional aptdeploy (not a public mon page layout — v1.8.0 simplified overview)
  install -m 644 "$ROOT/taler-monitoring-aptdeploy.service" "$home_unit/"
  install -m 644 "$ROOT/taler-monitoring-aptdeploy.timer" "$home_unit/"
  # units still installed for migration; timers disabled (folded into surface)
  install -m 644 "$ROOT/taler-monitoring-mattermost.service" "$home_unit/"
  install -m 644 "$ROOT/taler-monitoring-mattermost.timer" "$home_unit/"
  install -m 644 "$ROOT/taler-monitoring-mail.service" "$home_unit/"
  install -m 644 "$ROOT/taler-monitoring-mail.timer" "$home_unit/"

  systemctl --user daemon-reload
  systemctl --user enable --now taler-monitoring-hacktivism.path
  systemctl --user enable --now taler-monitoring-hacktivism.timer
  systemctl --user enable --now taler-monitoring-surface.timer
  systemctl --user enable --now taler-monitoring-aptdeploy.timer
  # v1.8.0: mail + mattermost folded into surface — stop separate timers
  systemctl --user disable --now taler-monitoring-mattermost.timer 2>/dev/null || true
  systemctl --user disable --now taler-monitoring-mail.timer 2>/dev/null || true
  # initial stamp so path exists
  "$ROOT/touch-software-stamp.sh"
  systemctl --user start taler-monitoring-hacktivism.service || true
  systemctl --user start taler-monitoring-surface.service || true
  systemctl --user start taler-monitoring-aptdeploy.service || true

  echo "--- status ---"
  systemctl --user status taler-monitoring-hacktivism.path --no-pager -l | head -15
  systemctl --user status taler-monitoring-hacktivism.timer --no-pager -l | head -12
  systemctl --user status taler-monitoring-surface.timer --no-pager -l | head -12
  systemctl --user status taler-monitoring-aptdeploy.timer --no-pager -l | head -12
  systemctl --user list-timers --all | grep taler-monitoring || true
  echo "OK host-agent (v1.8.0 simplified):"
  echo "  · hacktivism 4h → /monitoring on bank/exchange/taler (landing stacks)"
  echo "  · surface 1h → /taler-monitoring-surface* (ecosystem versions/software)"
  echo "  · aptdeploy 4h (optional tests; not a public mon-page type)"
  echo "  · mail/mattermost timers disabled (content in surface)"
  echo "suite: $mon"
  echo "manual surface: systemctl --user start taler-monitoring-surface.service"
  echo "after upgrades: $ROOT/touch-software-stamp.sh"
}

if [ -n "$REMOTE" ] && [ "$REMOTE" != "--remote" ]; then
  echo "install on $REMOTE …"
  # ROOT = …/taler-monitoring/host-agent → suite root is parent
  rsync -az --delete \
    --exclude secrets.env \
    --exclude 'android-test/artifacts' \
    --exclude '.git' \
    "$ROOT/../" \
    "${REMOTE}:src/taler-monitoring/"
  ssh -o BatchMode=yes "$REMOTE" \
    'bash $HOME/src/taler-monitoring/host-agent/install-host-agent.sh'
else
  install_local
fi