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#ifndef MOZC_NET_PROXY_MANAGER_H_
#define MOZC_NET_PROXY_MANAGER_H_

#include <string>

namespace mozc {
class ProxyManagerInterface;

// ProxyManager is a class to access the OS preferences and to use the
// extracted proxy configuration for http_client.  Therefore
// ProxyManager highly depends on OS-provided mechanism, so the
// implementation differs according to the platform.
// TODO(mukai): Currently ProxyManager doesn't work on Linux.
class ProxyManager {
 public:
  // Get the system configuration proxy info.  Stores the hostname /
  // port number to "hostdata" (scheme://host:port format) and
  // username / password to "authdata" (username:password format).
  // Returns true if the system actually uses a proxy.  Returns false
  // otherwise.
  static bool GetProxyData(
      const string &url, string *hostdata, string *authdata);

  // Inject a dependency for unittesting
  static void SetProxyManager(ProxyManagerInterface *proxy_manager);

 private:
  ProxyManager() {}
  virtual ~ProxyManager() {}
};

// Implements ProxyManager implementation.
class ProxyManagerInterface {
 public:
  virtual bool GetProxyData(
      const string &url, string *hostdata, string *authdata) = 0;

  ProxyManagerInterface();
  virtual ~ProxyManagerInterface();
};

// Dummy proxy manager is a proxy manager which does nothing.  This
// class is the default proxy manager for Windows/Linux.
class DummyProxyManager : public ProxyManagerInterface {
 public:
  virtual bool GetProxyData(
      const string &url, string *hostdata, string *authdata);
};
}
#endif  // MOZC_NET_PROXY_MANAGER_H_