class CookbookOmnifetch::BaseLocation

def cached_cookbook
  raise AbstractFunction,
    "#cached_cookbook must be implemented on #{self.class.name}!"
end

def initialize(dependency, options = {})
  @dependency = dependency
  @options    = options
end

def install
  raise AbstractFunction,
    "#install must be implemented on #{self.class.name}!"
end

def installed?
  raise AbstractFunction,
    "#installed? must be implemented on #{self.class.name}!"
end

def lock_data
  raise AbstractFunction,
    "#to_lock must be implemented on #{self.class.name}!"
end

def to_lock
  raise AbstractFunction,
    "#to_lock must be implemented on #{self.class.name}!"
end

def validate_cached!(path)
  unless CookbookOmnifetch.cookbook?(path)
    raise NotACookbook.new(path)
  end
  cookbook = CookbookOmnifetch.cached_cookbook_class.from_path(path)
  unless @dependency.version_constraint.satisfies?(cookbook.version)
    raise CookbookValidationFailure.new(dependency, cookbook)
  end
  unless @dependency.name == cookbook.cookbook_name
    raise MismatchedCookbookName.new(dependency, cookbook)
  end
  true
end