module JWT::JWA

def algorithms
  @algorithms ||= {}
end

def create(algorithm)
  Deprecations.warning('The ::JWT::JWA.create method is deprecated and will be removed in the next major version of ruby-jwt.')
  resolve(algorithm)
end

def find(algo)
  algorithms.fetch(algo.to_s.downcase, Unsupported)
end

def register_algorithm(algo)
  algorithms[algo.alg.to_s.downcase] = algo
end

def resolve(algorithm)
  return find(algorithm) if algorithm.is_a?(String) || algorithm.is_a?(Symbol)
  unless algorithm.is_a?(SigningAlgorithm)
    Deprecations.warning('Custom algorithms are required to include JWT::JWA::SigningAlgorithm. Custom algorithms that do not include this module may stop working in the next major version of ruby-jwt.')
    return Wrapper.new(algorithm)
  end
  algorithm
end

def resolve_and_sort(algorithms:, preferred_algorithm:)
  algs = Array(algorithms).map { |alg| JWA.resolve(alg) }
  algs.partition { |alg| alg.valid_alg?(preferred_algorithm) }.flatten
end