oc

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

PORT_START=30000
PORT_END=31000

if [ $# -lt 1 ]; then
  echo "Usage: oc <path> [path ...]" >&2
  exit 1
fi

is_serving() {
  local target="$1"
  for pid in $(pgrep -f "opencode serve" 2>/dev/null); do
    local cwd
    cwd="$(readlink -f /proc/"$pid"/cwd 2>/dev/null)" || continue
    [ "$cwd" = "$target" ] && return 0
  done
  return 1
}

port_in_use() {
  ss -tlnH "sport = :$1" 2>/dev/null | grep -q . && return 0
  return 1
}

next_port=$PORT_START

for dir in "$@"; do
  abs="$(realpath "$dir" 2>/dev/null || echo "$dir")"

  if [ ! -d "$abs" ]; then
    echo "[skip] '$abs' is not a directory" >&2
    continue
  fi

  if is_serving "$abs"; then
    echo "[skip] already serving: $abs"
    continue
  fi

  # Find next available port in range
  while port_in_use "$next_port"; do
    next_port=$((next_port + 1))
    if [ "$next_port" -gt "$PORT_END" ]; then
      echo "[error] no free ports in $PORT_START-$PORT_END" >&2
      exit 1
    fi
  done

  echo "[start] opencode serve in $abs (port $next_port)"
  (cd "$abs" && opencode serve --port "$next_port" &)
  next_port=$((next_port + 1))
done

wait