# RPM package for Fedora, RHEL and similar. Built by 'make rpm', which fills in
# @VERSION@ and makes the source tarball. The scriptlets use plain systemctl,
# systemd-sysusers and systemd-tmpfiles rather than Fedora's macros, so the
# package can be built anywhere rpmbuild runs (the release workflow builds it on
# Ubuntu). They do what packaging/deb/ does for Debian; see the comments there.

Name:           terraria-server-manager
Version:        @VERSION@
Release:        1
Summary:        Run multiple Terraria and tModLoader dedicated servers with systemd
# TODO: no license has been chosen for this project yet
License:        LicenseRef-Unspecified
URL:            https://gitea.adbraun.lol/adam/terraria-server-manager
Packager:       Adam Brown <adam@adbraun.lol>
Source0:        %{name}-%{version}.tar.gz
BuildArch:      noarch

BuildRequires:  make
Requires:       bash
Requires:       coreutils
Requires:       util-linux
Requires:       unzip
Requires:       systemd
Requires:       python3
Requires:       openssl
# Only needed for tModLoader instances (ICU: they stop with 'Aborted' without it)
Recommends:     curl
Recommends:     libicu
# Lets the terraria group start, stop and restart servers without sudo
Recommends:     polkit
Suggests:       bash-completion

%description
Provides the terraria@.service template and the terractl command for running
any number of vanilla Terraria and tModLoader dedicated servers, each as its
own systemd service under an unprivileged terraria user.

Server software is not included. 'terractl fetch' downloads the official server
zips into /var/lib/terraria/dist, and they are unpacked into each instance on
demand.

Hosts can also be managed from other hosts (terractl --host, copy, move)
through the optional terractld daemon.

%prep
%setup -q

%build
# Nothing to build: shell and Python scripts

%install
make install DESTDIR=%{buildroot} PREFIX=/usr SYSCONFDIR=/etc

%post
systemd-sysusers terractl.conf >/dev/null 2>&1 || :
systemd-tmpfiles --create terractl.conf >/dev/null 2>&1 || :
if [ -d /run/systemd/system ]; then
    systemctl daemon-reload >/dev/null 2>&1 || :
    # On upgrades the daemon (if it's on) runs the new version right away. It
    # only serves other hosts; the game servers keep running.
    if [ "$1" -ge 2 ]; then
        systemctl try-restart terractld.service >/dev/null 2>&1 || :
    fi
fi
# Let the terraria group read the servers' journal (LogNamespace=terraria)
/usr/bin/terractl journal-access >/dev/null 2>&1 || :

%preun
# On removal (not upgrade), stop everything while terractl still exists, so each
# server is sent "exit" and saves its world, and take back what was enabled:
# rpm, unlike dpkg, has no separate purge.
if [ "$1" -eq 0 ] && [ -d /run/systemd/system ]; then
    systemctl disable --now terractld.service >/dev/null 2>&1 || :
    for f in /etc/systemd/system/*.wants/terraria-backup@*.timer \
             /etc/systemd/system/*.wants/terraria@*.service; do
        [ -L "$f" ] && systemctl disable "${f##*/}" >/dev/null 2>&1 || :
    done
    systemctl stop 'terraria-backup@*.timer' 'terraria-backup@*.service' >/dev/null 2>&1 || :
    units=$(systemctl list-units --plain --no-legend --all 'terraria@*.service' | awk '{print $1}')
    if [ -n "$units" ]; then
        echo "Stopping Terraria instances: $units"
        # Unquoted on purpose: each unit name must be a separate argument
        # shellcheck disable=SC2086
        systemctl stop $units || :
    fi
fi

%postun
if [ "$1" -eq 0 ]; then
    # Drop-ins terractl wrote itself (backup schedules, 'doctor --fix'). Ones
    # you added with 'systemctl edit' are kept.
    rm -f /etc/systemd/system/terraria-backup@*.timer.d/terractl.conf \
          /etc/systemd/system/terraria-backup@*.service.d/terractl.conf \
          /etc/systemd/system/*.d/terractl-locations.conf
    rmdir /etc/systemd/system/terraria-backup@*.d /etc/systemd/system/terraria@.service.d \
          /etc/systemd/system/terractld.service.d 2>/dev/null || :
    cat >&2 <<MSG
terraria-server-manager removed. Worlds, instances and backups in /var/lib/terraria,
the daemon's keys in /var/lib/terractl and the 'terraria' user were kept. Remove
them manually if they are no longer needed:
  sudo rm -rf /var/lib/terraria /var/lib/terractl && sudo userdel terraria
MSG
fi
if [ -d /run/systemd/system ]; then
    systemctl daemon-reload >/dev/null 2>&1 || :
fi

%files
/usr/bin/terractl
/usr/lib/terraria-server-manager/
/usr/lib/systemd/system/terraria@.service
/usr/lib/systemd/system/terraria@.socket
/usr/lib/systemd/system/terractld.service
/usr/lib/systemd/system/terraria-backup@.service
/usr/lib/systemd/system/terraria-backup@.timer
/usr/lib/sysusers.d/terractl.conf
/usr/lib/tmpfiles.d/terractl.conf
/usr/share/polkit-1/rules.d/50-terractl.rules
/usr/share/bash-completion/completions/terractl
/usr/share/terraria-server-manager/
%doc /usr/share/doc/terraria-server-manager/
%config(noreplace) /etc/default/terractl
%config(noreplace) /etc/systemd/journald@terraria.conf