#!/usr/bin/env bash
# Detect available agents, prompt with fzf, run the selected one.
# Detaches the client if all panes in the window are dead afterwards.

agents=()
command -v claude &>/dev/null && agents+=(claude)
command -v opencode &>/dev/null && agents+=(opencode)
command -v gemini &>/dev/null && agents+=(gemini)
command -v codex &>/dev/null && agents+=(gemini)

if [ ${#agents[@]} -eq 0 ]; then
  echo "No agent commands found (claude, opencode, gemini)"
  exit 1
fi

agent=$(printf '%s\n' "${agents[@]}" | fzf \
  --prompt='agent> ' \
  --reverse \
  --border=rounded \
  --margin=25%,30% \
  --padding=1)

if [ -n "$agent" ]; then
  "$agent" || true
fi

# Brief delay to let tmux update pane status
sleep 0.1

# Count panes still running (pane_dead=0)
# Note: our own pane counts as running since this script is executing
running=$(tmux list-panes -F '#{pane_dead}' | grep -c '^0$' || true)

# If we're the only pane still running, all others are dead - detach
[ "$running" -le 1 ] && tmux detach-client