#!/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)"

'