// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef WEBKIT_BROWSER_APPCACHE_APPCACHE_ENTRY_H_
#define WEBKIT_BROWSER_APPCACHE_APPCACHE_ENTRY_H_

#include "webkit/common/appcache/appcache_interfaces.h"

namespace appcache {

// A cached entry is identified by a URL and is classified into one
// (or more) categories.  URL is not stored here as this class is stored
// with the URL as a map key or the user of this class already knows the URL.
class AppCacheEntry {
 public:

  // An entry can be of more than one type so use a bitmask.
  // Note: These bit values are stored on disk.
  enum Type {
    MASTER = 1 << 0,
    MANIFEST = 1 << 1,
    EXPLICIT = 1 << 2,
    FOREIGN = 1 << 3,
    FALLBACK = 1 << 4,
    INTERCEPT = 1 << 5,
    EXECUTABLE = 1 << 6,
  };

  AppCacheEntry()
    : types_(0), response_id_(kAppCacheNoResponseId), response_size_(0) {}

  explicit AppCacheEntry(int type)
    : types_(type), response_id_(kAppCacheNoResponseId), response_size_(0) {}

  AppCacheEntry(int type, int64 response_id)
    : types_(type), response_id_(response_id), response_size_(0) {}

  AppCacheEntry(int type, int64 response_id, int64 response_size)
    : types_(type), response_id_(response_id), response_size_(response_size) {}

  int types() const { return types_; }
  void add_types(int added_types) { types_ |= added_types; }
  bool IsMaster() const { return (types_ & MASTER) != 0; }
  bool IsManifest() const { return (types_ & MANIFEST) != 0; }
  bool IsExplicit() const { return (types_ & EXPLICIT) != 0; }
  bool IsForeign() const { return (types_ & FOREIGN) != 0; }
  bool IsFallback() const { return (types_ & FALLBACK) != 0; }
  bool IsIntercept() const { return (types_ & INTERCEPT) != 0; }
  bool IsExecutable() const { return (types_ & EXECUTABLE) != 0; }

  int64 response_id() const { return response_id_; }
  void set_response_id(int64 id) { response_id_ = id; }
  bool has_response_id() const { return response_id_ != kAppCacheNoResponseId; }

  int64 response_size() const { return response_size_; }
  void set_response_size(int64 size) { response_size_ = size; }

 private:
  int types_;
  int64 response_id_;
  int64 response_size_;
};

}  // namespace appcache

#endif  // WEBKIT_APPCACHE_APPCACHE_RESOURCE_H_