module Github::Validation

def _validate_inputs(required, provided)
  result = required.all? do |key|
    provided.has_deep_key? key
  end
  if !result
    raise Github::Error::RequiredParams.new(provided, required)
  end
  result
end

def _validate_params_values(permitted, params)
  params.each do |k, v|
    next unless permitted.keys.include?(k)
    if permitted[k].is_a?(Array) && !permitted[k].include?(params[k])
      raise ArgumentError, "Wrong value for #{k}, allowed: #{permitted[k].join(', ')}"
    elsif permitted[k].is_a?(Regexp) && !(permitted[k] =~ params[k])
      raise ArgumentError, "String does not match the parameter value."
    end
  end
end

def _validate_presence_of(*params)
  params.each do |param|
    raise ArgumentError, "parameter cannot be nil" if param.nil?
  end
end

def _validate_user_repo_params(user_name, repo_name)
  raise ArgumentError, "[user] parameter cannot be nil" if user_name.nil?
  raise ArgumentError, "[repo] parameter cannot be nil" if repo_name.nil?
end