#!/usr/bin/env bash
set -euo pipefail

DASHBOARD_DISPLAY="${DASHBOARD_DISPLAY:-:0}"
DASHBOARD_VT="${DASHBOARD_VT:-1}"

XORG_BIN="${DASHBOARD_XORG_BIN:-}"
if [[ -z "$XORG_BIN" ]]; then
  if command -v Xorg >/dev/null 2>&1; then
    XORG_BIN="$(command -v Xorg)"
  elif [[ -x /usr/lib/xorg/Xorg ]]; then
    XORG_BIN=/usr/lib/xorg/Xorg
  elif [[ -x /usr/bin/Xorg ]]; then
    XORG_BIN=/usr/bin/Xorg
  else
    echo "dashboard.sh: Xorg not found in PATH and common locations" >&2
    exit 127
  fi
fi

# Create a temp conky config file
CFG="$(mktemp /tmp/conky-dashboard.XXXXXX.conf)"
cleanup() { rm -f "$CFG"; }
trap cleanup EXIT

cat >"$CFG" <<'EOF'
conky.config = {
  update_interval = 1,
  double_buffer = true,
  background = false,          -- foreground so Ctrl-C works

  own_window = false,          -- draw on root window
  use_xft = true,
  font = "DejaVu Sans Mono:size=16",
  default_color = "AAAAAA",

  alignment = "middle_middle",
  gap_x = 0, gap_y = 0,
};

conky.text = [[
${font DejaVu Sans Mono:size=26}${color 777777}${nodename}${color}${font}
${color 666666}Uptime:${color} $uptime
${color 666666}Load:${color} $loadavg

${color 666666}CPU:${color} ${cpu}%  ${color 444444}${cpubar 14,700}${color}

${color 666666}RAM:${color} $mem/$memmax ($memperc%)  ${color 444444}${membar 14,700}${color}

${color 666666}Disk /:${color} ${fs_used /}/${fs_size /}  ${color 444444}${fs_bar 14,700 /}${color}

${color 666666}Procs:${color} $processes   ${color 666666}Running:${color} $running_processes
]];
EOF

# Start X just for this dashboard. Conky runs in the foreground; Ctrl-C exits X.
exec /usr/bin/xinit /usr/bin/env bash -lc '
  # Disable screen blanking + power management
  xset s off
  xset -dpms
  xset s noblank

  xsetroot -solid "#202020"
  exec conky -c "'"$CFG"'"
 ' -- "$XORG_BIN" "$DASHBOARD_DISPLAY" "vt${DASHBOARD_VT}" -keeptty -nolisten tcp