baweaver/izzy

require 'izzy/version'

module Izzy

  # Boolean Predicate

  def all_of?(*methods)
    methods.all? &method_check
  end

  def any_of?(*methods)
    methods.any? &method_check
  end

  def none_of?(*methods)
    methods.none? &method_check
  end

  # Matchers

  def matches_all?(matchers = {})
    matchers.all? &matcher_check(:all?)
  end

  def matches_any?(matchers = {})
    matchers.any? &matcher_check(:any?)
  end

  def matches_none?(matchers = {})
    matchers.none? &matcher_check(:any?)
  end

  # Enumerable Matchers

  def select_where(matchers = {})
    self.select { |s| s.matches_all? matchers }
  end

  def reject_where(matchers = {})
    self.reject { |s| s.matches_all? matchers }
  end

  def find_where(matchers = {})
    self.find { |s| s.matches_all? matchers }
  end

  private

  def method_check
    -> m { self.send(m) }
  end

  def matcher_check(type = :all?)
    -> matcher { 
      m, val = *matcher
      values = val.is_a?(Array) ? val : Array[val]
      values.send(type) { |v| v === self.send(m) }
    }
  end
end

module IzzyArray
  def all_are(m)
    self.all? &object_block(m)
  end

  def any_are(m)
    self.any? &object_block(m)
  end

  def none_are(m)
    self.none? &object_block(m)
  end

  private

  def object_block(m)
    -> o { o.respond_to?(m) && o.send(m) }
  end
end