#!/bin/bash
# Auto-start dev server in tmux session when build/dev commands are detected
# Event: PreToolUse | Matcher: Bash
# Profile: standard
# Non-blocking (exit 0)

INPUT=$(cat)
COMMAND=$(echo "$INPUT" | jq -r '.tool_input.command // empty')

if [ -z "$COMMAND" ]; then
  exit 0
fi

# Detect dev server commands
DEV_PATTERNS=(
  'npm\s+run\s+dev'
  'pnpm\s+(run\s+)?dev'
  'yarn\s+dev'
  'next\s+dev'
  'vite\s*$'
  'vite\s+dev'
)

IS_DEV_COMMAND=false
for pattern in "${DEV_PATTERNS[@]}"; do
  if echo "$COMMAND" | grep -qE "$pattern"; then
    IS_DEV_COMMAND=true
    break
  fi
done

if [ "$IS_DEV_COMMAND" = false ]; then
  exit 0
fi

# Check if tmux is available
if ! command -v tmux &>/dev/null; then
  exit 0
fi

# Check if dev server is already running in a tmux session
SESSION_NAME="claude-dev"
if tmux has-session -t "$SESSION_NAME" 2>/dev/null; then
  echo "Dev server already running in tmux session '$SESSION_NAME'. Use 'tmux attach -t $SESSION_NAME' to view." >&2
  exit 0
fi

echo "Tip: Long-running dev servers work better in tmux. Run: tmux new -d -s $SESSION_NAME '$COMMAND'" >&2
exit 0