Class: Interfacets::Server::BasicRouter

Inherits:
Object
  • Object
show all
Defined in:
lib/interfacets/server/basic_router.rb

Defined Under Namespace

Classes: Evaluator

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(bus:, paths:, default: nil) ⇒ BasicRouter

Returns a new instance of BasicRouter.



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# File 'lib/interfacets/server/basic_router.rb', line 20

def initialize(bus:, paths:, default: nil)
  @bus = bus
  @paths = paths
  @default = default
end

Instance Attribute Details

#bus ⇒ Object (readonly)

Returns the value of attribute bus.



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# File 'lib/interfacets/server/basic_router.rb', line 19

def bus
  @bus
end

#default ⇒ Object (readonly)

Returns the value of attribute default.



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# File 'lib/interfacets/server/basic_router.rb', line 19

def default
  @default
end

#paths ⇒ Object (readonly)

Returns the value of attribute paths.



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# File 'lib/interfacets/server/basic_router.rb', line 19

def paths
  @paths
end

Instance Method Details

#call(url, query: {}) ⇒ Object 



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# File 'lib/interfacets/server/basic_router.rb', line 26

def call(url, query: {})
  path = normalize(url)

  if path.nil? && default
    klass = klass_for(default)
    return evaluator.call(klass:, id: nil, query:, resolved_path: default)
  end

  if normalized_paths.key?(path)
    klass = klass_for(path)

    evaluator.call(klass:, id: nil, query:, resolved_path: path)
  else
    *parts, id = path.split("/")
    resolved_base_path = parts.join("/")

    if normalized_paths.key?(resolved_base_path)
      klass = klass_for(resolved_base_path)
      evaluator.call(klass:, id:, query:, resolved_path: path)
    elsif default
      klass = klass_for(default)
      evaluator.call(klass:, id: nil, query:, resolved_path: default)
    else
      raise "unhandled route: #{path}"
    end
  end
end

#evaluator ⇒ Object 



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# File 'lib/interfacets/server/basic_router.rb', line 54

def evaluator
  @evaluator ||= Evaluator.new(bus:)
end

#klass_for(path) ⇒ Object 



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# File 'lib/interfacets/server/basic_router.rb', line 58

def klass_for(path)
  val = normalized_paths.fetch(normalize(path))

  (val.is_a?(String) ? Object.const_get(val) : val)
end

#normalize(path) ⇒ Object 



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# File 'lib/interfacets/server/basic_router.rb', line 71

def normalize(path)
path
  &.sub(/^#{bus.root_url}/, "/")
  &.sub(/^/, "/")
  &.sub(%r{^/*}, "/")
end

#normalized_paths ⇒ Object 



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# File 'lib/interfacets/server/basic_router.rb', line 64

def normalized_paths
  @normalized_paths ||= (
    paths
      .transform_keys { normalize(_1) }
  )
end