install.sh

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

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

usage() {
  cat <<'EOF'
Usage: install.sh [target_bin_dir]

Installs:
  start-codex
  switch-codex-account
  codex-start
EOF
}

pick_target_bin() {
  local path_entry
  IFS=':' read -r -a path_parts <<< "${PATH:-}"
  for path_entry in "${path_parts[@]}"; do
    [[ -z "$path_entry" ]] && continue
    if [[ -d "$path_entry" && -w "$path_entry" ]]; then
      printf '%s\n' "$path_entry"
      return 0
    fi
  done
  printf '%s\n' "${HOME}/.local/bin"
}

install_file() {
  local src="$1"
  local dst="$2"
  cp "$src" "$dst"
  chmod 700 "$dst"
}

main() {
  if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
    usage
    exit 0
  fi

  local target_bin="${1:-}"
  if [[ -z "$target_bin" ]]; then
    target_bin="$(pick_target_bin)"
  fi

  mkdir -p "$target_bin"

  install_file "${SCRIPT_DIR}/start-codex" "${target_bin}/start-codex"
  install_file "${SCRIPT_DIR}/switch-codex-account" "${target_bin}/switch-codex-account"
  install_file "${SCRIPT_DIR}/start-codex" "${target_bin}/codex-start"

  printf 'Installed Codex account tools to %s\n' "$target_bin"
}

main "$@"