1 files changed, 160 insertions, 0 deletions
diff --git a/scripts/max25d-session.sh b/scripts/max25d-session.sh
new file mode 100755
index 0000000..701d23e
--- /dev/null
+++ b/scripts/max25d-session.sh
@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+# max25d-session — run max25d inside tmux or GNU screen (operator attach/detach).
+#
+#   max25d-session start [--tmux|--screen] [-c /etc/max25/max25d.ini]
+#   max25d-session attach [--tmux|--screen]
+#   max25d-session status
+#   max25d-session stop
+#
+# Environment overrides:
+#   MAX25D_SESSION         session name (default: max25d)
+#   MAX25D_SESSION_BACKEND tmux | screen (default: tmux)
+#   MAX25D_INI             config path
+set -euo pipefail
+
+SESSION_NAME="${MAX25D_SESSION:-max25d}"
+BACKEND="${MAX25D_SESSION_BACKEND:-tmux}"
+CONFIG="${MAX25D_INI:-/etc/max25/max25d.ini}"
+MAX25D_BIN="${MAX25D_BIN:-max25d}"
+
+usage() {
+  cat <<'EOF'
+max25d-session — persistent max25d in tmux or screen
+
+Commands:
+  start   [--tmux|--screen] [-c ini]   start detached session
+  attach  [--tmux|--screen]            attach to running session
+  status                               show session + max25d hint
+  stop                                 kill session
+
+Examples:
+  max25d-session start -c /etc/max25/max25d.ini
+  max25d-session attach
+  MAX25D_SESSION_BACKEND=screen max25d-session start
+
+EOF
+}
+
+have_tmux() { command -v tmux >/dev/null 2>&1; }
+have_screen() { command -v screen >/dev/null 2>&1; }
+
+pick_backend() {
+  case "${1:-$BACKEND}" in
+    tmux)
+      if ! have_tmux; then
+        echo "max25d-session: tmux not installed" >&2
+        exit 1
+      fi
+      echo tmux
+      ;;
+    screen)
+      if ! have_screen; then
+        echo "max25d-session: screen not installed" >&2
+        exit 1
+      fi
+      echo screen
+      ;;
+    *)
+      echo "max25d-session: unknown backend '$1' (use tmux or screen)" >&2
+      exit 1
+      ;;
+  esac
+}
+
+session_running() {
+  local b="$1"
+  case "$b" in
+    tmux) tmux has-session -t "$SESSION_NAME" 2>/dev/null ;;
+    screen) screen -ls | grep -q "[[:space:]]*[0-9]*\.${SESSION_NAME}[[:space:]]" ;;
+  esac
+}
+
+cmd_start() {
+  local b
+  b="$(pick_backend "$BACKEND")"
+  if session_running "$b"; then
+    echo "max25d-session: session '$SESSION_NAME' already running ($b)" >&2
+    echo "  attach: max25d-session attach --$b" >&2
+    exit 1
+  fi
+  local cmd="${MAX25D_BIN} -c ${CONFIG}"
+  case "$b" in
+    tmux)
+      tmux new-session -d -s "$SESSION_NAME" \
+        "${MAX25D_BIN} -c ${CONFIG}; echo; echo max25d exited \$?; read -r _"
+      ;;
+    screen)
+      screen -dmS "$SESSION_NAME" bash -lc "${cmd}"
+      ;;
+  esac
+  echo "max25d-session: started ($b) name=$SESSION_NAME config=$CONFIG"
+  echo "max25d-session: attach with: max25d-session attach --$b"
+}
+
+cmd_attach() {
+  local b
+  b="$(pick_backend "$BACKEND")"
+  if ! session_running "$b"; then
+    echo "max25d-session: no session '$SESSION_NAME' ($b)" >&2
+    exit 1
+  fi
+  case "$b" in
+    tmux) exec tmux attach -t "$SESSION_NAME" ;;
+    screen) exec screen -r "$SESSION_NAME" ;;
+  esac
+}
+
+cmd_status() {
+  local b
+  b="$(pick_backend "$BACKEND")"
+  if session_running "$b"; then
+    echo "max25d-session: running backend=$b name=$SESSION_NAME"
+    case "$b" in
+      tmux) tmux list-panes -t "$SESSION_NAME" -F 'pane #{pane_index}: #{pane_current_command}' 2>/dev/null || true ;;
+      screen) screen -ls | grep "${SESSION_NAME}" || true ;;
+    esac
+  else
+    echo "max25d-session: not running (backend=$b name=$SESSION_NAME)"
+  fi
+  if command -v pgrep >/dev/null 2>&1 && pgrep -x max25d >/dev/null 2>&1; then
+    echo "max25d-session: max25d process: $(pgrep -xa max25d || true)"
+  fi
+}
+
+cmd_stop() {
+  local b
+  b="$(pick_backend "$BACKEND")"
+  if ! session_running "$b"; then
+    echo "max25d-session: not running" >&2
+    exit 0
+  fi
+  case "$b" in
+    tmux) tmux kill-session -t "$SESSION_NAME" ;;
+    screen) screen -S "$SESSION_NAME" -X quit ;;
+  esac
+  echo "max25d-session: stopped ($b) name=$SESSION_NAME"
+}
+
+CMD="${1:-}"
+shift || true
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --tmux) BACKEND=tmux; shift ;;
+    --screen) BACKEND=screen; shift ;;
+    -c|--config)
+      CONFIG="${2:?config path required}"
+      shift 2
+      ;;
+    -h|--help) usage; exit 0 ;;
+    *) echo "max25d-session: unknown option: $1" >&2; usage >&2; exit 1 ;;
+  esac
+done
+
+case "$CMD" in
+  start) cmd_start ;;
+  attach) cmd_attach ;;
+  status) cmd_status ;;
+  stop) cmd_stop ;;
+  ""|-h|--help) usage ;;
+  *) echo "max25d-session: unknown command: $CMD" >&2; usage >&2; exit 1 ;;
+esac