class Inspec::ProfileContext

def self.for_profile(profile, backend, attributes)
  new(profile.name, backend, { 'profile' => profile,
                               'attributes' => attributes,
                               'check_mode' => profile.check_mode })
end

def add_resources(context)
  @resource_registry.merge!(context.resource_registry)
  control_eval_context.add_resources(context)
  @lib_subcontexts << context
  reload_dsl
end

def add_subcontext(context)
  @control_subcontexts << context
end

def all_controls
  ret = @rules.values
  ret += @control_subcontexts.map(&:all_rules).flatten
  ret
end

def control_eval_context
  @control_eval_context ||= begin
                              ctx = Inspec::ControlEvalContext.create(self, to_resources_dsl)
                              ctx.new(@backend, @conf, dependencies, @require_loader, @skip_only_if_eval)
                            end
end

def dependencies
  if @conf['profile'].nil?
    {}
  else
    @conf['profile'].locked_dependencies
  end
end

def full_id(pid, rid)
  return rid.to_s if pid.to_s.empty?
  pid.to_s + '/' + rid.to_s
end

def initialize(profile_id, backend, conf)
  if backend.nil?
    raise 'ProfileContext is initiated with a backend == nil. ' \
         'This is a backend error which must be fixed upstream.'
  end
  @profile_id = profile_id
  @backend = backend
  @conf = conf.dup
  @skip_only_if_eval = @conf['check_mode']
  @rules = {}
  @control_subcontexts = []
  @lib_subcontexts = []
  @require_loader = ::Inspec::RequireLoader.new
  @attributes = []
  # A local resource registry that only contains resources defined
  # in the transitive dependency tree of the loaded profile.
  @resource_registry = Inspec::Resource.new_registry
  @library_eval_context = Inspec::LibraryEvalContext.create(@resource_registry, @require_loader)
  @current_load = nil
end

def load_control_file(*args)
  # Set `skip_file` to `false` between file loads to prevent skips from spanning multiple control files
  control_eval_context.skip_file = false
  load_with_context(control_eval_context, *args)
end

def load_libraries(libs)
  lib_prefix = 'libraries' + File::SEPARATOR
  autoloads = []
  libs.sort_by! { |l| l[1] } # Sort on source path so load order is deterministic
  libs.each do |content, source, line|
    path = source
    if source.start_with?(lib_prefix)
      path = source.sub(lib_prefix, '')
      autoloads.push(path) if File.dirname(path) == '.'
    end
    @require_loader.add(path, content, source, line)
  end
  # load all files directly that are flat inside the libraries folder
  autoloads.each do |path|
    next unless path.end_with?('.rb')
    load_library_file(*@require_loader.load(path)) unless @require_loader.loaded?(path)
  end
  reload_dsl
end

def load_library_file(*args)
  load_with_context(@library_eval_context, *args)
end

def load_with_context(context, content, source = nil, line = nil)
  Inspec::Log.debug("Loading #{source || '<anonymous content>'} into #{self}")
  @current_load = { file: source }
  if content.is_a? Proc
    context.instance_eval(&content)
  elsif source.nil? && line.nil?
    context.instance_eval(content)
  else
    context.instance_eval(content, source || 'unknown', line || 1)
  end
end

def profile_supports_inspec_version?
  return true if @conf['profile'].nil?
  @conf['profile'].supports_runtime?
end

def profile_supports_platform?
  return true if @conf['profile'].nil?
  @conf['profile'].supports_platform?
end

def register_attribute(name, options = {})
  # we need to return an attribute object, to allow dermination of default values
  attr = Attribute.new(name, options)
  # read value from given gived values
  attr.value = @conf['attributes'][attr.name] unless @conf['attributes'].nil?
  @attributes.push(attr)
  attr.value
end

def register_rule(r)
  # get the full ID
  file = if @current_load.nil?
           'unknown'
         else
           @current_load[:file] || 'unknown'
         end
  r.instance_variable_set(:@__file, file)
  r.instance_variable_set(:@__group_title, current_load[:title])
  # add the rule to the registry
  fid = full_id(Inspec::Rule.profile_id(r), Inspec::Rule.rule_id(r))
  existing = @rules[fid]
  if existing.nil?
    @rules[fid] = r
  else
    Inspec::Rule.merge(existing, r)
  end
end

def reload_dsl
  @control_eval_context = nil
end

def remove_rule(id)
  @rules[id] = nil if @rules.key?(id)
  @control_subcontexts.each do |c|
    c.remove_rule(id)
  end
end

def set_header(field, val)
  @current_load[field] = val
end

def subcontext_by_name(name)
  found = @lib_subcontexts.find { |c| c.profile_id == name }
  if !found
    @lib_subcontexts.each do |c|
      found = c.subcontext_by_name(name)
      break if found
    end
  end
  found
end

def to_resources_dsl
  Inspec::Resource.create_dsl(self)
end

def unregister_rule(id)
  @rules.delete(full_id(@profile_id, id))
end