superpowers/lib/brainstorm-server/start-server.sh

#!/bin/bash
# Start the brainstorm server and output connection info
# Usage: start-server.sh [--project-dir <path>]
#
# Starts server on a random high port, outputs JSON with URL.
# Each session gets its own directory to avoid conflicts.
#
# Options:
#   --project-dir <path>  Store session files under <path>/.superpowers/brainstorm/
#                         instead of /tmp. Files persist after server stops.

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"

# Parse arguments
PROJECT_DIR=""
while [[ $# -gt 0 ]]; do
  case "$1" in
    --project-dir)
      PROJECT_DIR="$2"
      shift 2
      ;;
    *)
      echo "{\"error\": \"Unknown argument: $1\"}"
      exit 1
      ;;
  esac
done

# Generate unique session directory
SESSION_ID="$$-$(date +%s)"

if [[ -n "$PROJECT_DIR" ]]; then
  SCREEN_DIR="${PROJECT_DIR}/.superpowers/brainstorm/${SESSION_ID}"
else
  SCREEN_DIR="/tmp/brainstorm-${SESSION_ID}"
fi

PID_FILE="${SCREEN_DIR}/.server.pid"
LOG_FILE="${SCREEN_DIR}/.server.log"

# Create fresh session directory
mkdir -p "$SCREEN_DIR"

# Kill any existing server
if [[ -f "$PID_FILE" ]]; then
  old_pid=$(cat "$PID_FILE")
  kill "$old_pid" 2>/dev/null
  rm -f "$PID_FILE"
fi

# Start server, capturing output to log file
cd "$SCRIPT_DIR"
BRAINSTORM_DIR="$SCREEN_DIR" node index.js > "$LOG_FILE" 2>&1 &
SERVER_PID=$!
echo "$SERVER_PID" > "$PID_FILE"

# Wait for server-started message (check log file)
for i in {1..50}; do
  if grep -q "server-started" "$LOG_FILE" 2>/dev/null; then
    grep "server-started" "$LOG_FILE" | head -1
    exit 0
  fi
  sleep 0.1
done

# Timeout - server didn't start
echo '{"error": "Server failed to start within 5 seconds"}'
exit 1