fileflows: tolerate no pre-existing fileflows units when checking for the new Agent unit

install/fileflows-install.sh

@@ -45,7 +45,7 @@ $STD ln -svf /usr/bin/ffmpeg /usr/local/bin/ffmpeg
 $STD ln -svf /usr/bin/ffprobe /usr/local/bin/ffprobe
 $STD rm -rf /opt/fileflows/Server/runtimes/win-*
 
-read -r -p "${TAB3}Do you want to install FileFlows Server or Node? (S/N): " install_server
+read -r -p "${TAB3}Do you want to install FileFlows Server or Agent? (S/A): " install_server
 
 if [[ "$install_server" =~ ^[Ss]$ ]]; then
   msg_info "Installing FileFlows Server"
@@ -54,15 +54,23 @@ if [[ "$install_server" =~ ^[Ss]$ ]]; then
   systemctl enable -q --now fileflows
   msg_ok "Installed FileFlows Server"
 else
-  msg_info "Installing FileFlows Node"
+  msg_info "Installing FileFlows Agent"
+  stop_spinner
   read -r -p "${TAB3}Enter FileFlows Server URL (e.g. http://192.168.1.10:19200): " server_url
   while [[ -z "${server_url// /}" ]]; do
     read -r -p "${TAB3}Enter FileFlows Server URL (e.g. http://192.168.1.10:19200): " server_url
   done
-  cd /opt/fileflows/Node
+  cd /opt/fileflows/Agent
-  $STD dotnet FileFlows.Node.dll --server "$server_url" --systemd install --root true
+  before_units="$(systemctl list-unit-files 'fileflows*' --no-legend 2>/dev/null | awk '{print $1}' | sort || true)"
-  systemctl enable -q --now fileflows-node
+  $STD dotnet FileFlows.Agent.dll --server "$server_url" --systemd install --root true
-  msg_ok "Installed FileFlows Node"
+  after_units="$(systemctl list-unit-files 'fileflows*' --no-legend 2>/dev/null | awk '{print $1}' | sort || true)"
+  agent_unit="$(comm -13 <(echo "$before_units") <(echo "$after_units") | head -n1)"
+  if [[ -n "$agent_unit" ]]; then
+    systemctl enable -q --now "$agent_unit"
+  else
+    msg_warn "Could not detect the FileFlows Agent systemd unit; start it manually (systemctl list-unit-files 'fileflows*')."
+  fi
+  msg_ok "Installed FileFlows Agent"
 fi
 
 motd_ssh