#!/bin/sh
# Install `spectra serve` on another machine as a systemd user service
# (spec §8.6, spectra#25): build a release here, copy a stripped binary and
# the unit over SSH, and enable it. The unit waits until a Spectra exists
# there (`spectra init --owner KEYID`), and starts from boot when the
# account has lingering on.
#
#   scripts/install-server.sh [USER@]HOST
set -eu
[ $# -eq 1 ] || { echo "usage: $0 [USER@]HOST" >&2; exit 2; }
target=$1
cd "$(dirname "$0")/.."
SPECTRA_BUILD="$(oxy --plain describe 2>/dev/null || true)" CARGO_INCREMENTAL=0 cargo build --release -p spectra
bin=${CARGO_TARGET_DIR:-target}/release/spectra
tmp=$(mktemp -d)
trap 'rm -rf "$tmp"' EXIT
strip -o "$tmp/spectra" "$bin"
ssh -o BatchMode=yes "$target" 'mkdir -p ~/.local/bin ~/.config/systemd/user'
scp -q -o BatchMode=yes "$tmp/spectra" "$target:.local/bin/spectra.new"
scp -q -o BatchMode=yes packaging/spectra.service "$target:.config/systemd/user/spectra.service"
ssh -o BatchMode=yes "$target" '
set -e
chmod 755 ~/.local/bin/spectra.new && mv ~/.local/bin/spectra.new ~/.local/bin/spectra
systemctl --user daemon-reload
systemctl --user enable spectra >/dev/null 2>&1
if systemctl --user is-active --quiet spectra; then systemctl --user restart spectra; fi
echo "installed: $(~/.local/bin/spectra --version)"
if [ -e ~/.local/share/spectra/spectra.db ]; then
  systemctl --user start spectra
  echo "service: $(systemctl --user is-active spectra)"
else
  echo "service: enabled; waiting for a Spectra: spectra init --owner KEYID, then systemctl --user start spectra"
fi
echo "linger: $(loginctl show-user "$(id -un)" -p Linger --value) (yes means it runs from boot)"
'