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Beam Bots - The framework for resilient robotics.

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bb lib bb error invalid command.ex
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lib/bb/error/invalid/command.ex 

# SPDX-FileCopyrightText: 2025 James Harton

#

# SPDX-License-Identifier: Apache-2.0



defmodule BB.Error.Invalid.Command do

  @moduledoc """

  Invalid command or command arguments.



  Raised when a command is unknown or its arguments are invalid.

  """

  use BB.Error,

    class: :invalid,

    fields: [:command, :argument, :value, :reason]



  defimpl BB.Error.Severity do

    def severity(_), do: :error

  end



  def message(%{command: cmd, argument: nil, value: nil, reason: reason}) do

    "Invalid command #{inspect(cmd)}: #{reason}"

  end



  def message(%{command: cmd, argument: arg, value: value, reason: reason}) do

    "Invalid command #{inspect(cmd)} argument #{inspect(arg)}: " <>

      "#{reason} (got #{inspect(value)})"

  end

end