# Start ssh agent for private key

function _log() {
  xlog "[ssh-agent] $*"
}

_SSH_AGENT_NO_KEYS=1
_SSH_AGENT_NOT_RUNNING=2

for key in id_ecdsa id_rsa; do
  key_filename="$HOME/.ssh/$key"

  if [ -f "$key_filename" ]; then
    _log "SSH key: $key_filename"

    if is_wsl; then
      _log "WSL ON"

      if [ -z "$SSH_AUTH_SOCK" ]; then
        export SSH_AUTH_SOCK=$HOME/.ssh/ssh-agent.sock
      fi

      _log "SSH_AUTH_SOCK: $SSH_AUTH_SOCK"

      ssh-add -L &> /dev/null
      ssh_add_status=$?

      if [[ ! -S "$SSH_AUTH_SOCK" || $ssh_add_status -eq $_SSH_AGENT_NOT_RUNNING ]]; then
        _log "Starting ssh-agent"
        eval "$(ssh-agent -s -a "$SSH_AUTH_SOCK")"
      fi

      ssh-add -L &> /dev/null
      ssh_add_status=$?

      if [[ $ssh_add_status -eq $_SSH_AGENT_NO_KEYS ]]; then
        _log "Adding SSH key to agent"
        ssh-add "$key_filename"
      fi
    else
      eval "$(keychain --eval --quiet --agents ssh $key)"
    fi

    break
  fi
done