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#import "mac/GoogleJapaneseInputServer.h"

#include <string>

#include "base/const.h"
#include "base/logging.h"
#include "base/mutex.h"
#include "protocol/commands.pb.h"

GoogleJapaneseInputServer *g_imkServer = nil;

namespace {
void InitializeServer() {
  NSBundle *bundle = [NSBundle mainBundle];
  NSDictionary *infoDictionary = [bundle infoDictionary];
  NSString *connectionName =
      [infoDictionary objectForKey:@"InputMethodConnectionName"];
  if (connectionName == nil ||
      ![connectionName isKindOfClass:[NSString class]]) {
    LOG(ERROR) << "InputMethodConnectionName is not found or incorrect. "
               << "Possibly Info.plist is broken.";
    return;
  }

  g_imkServer = [[GoogleJapaneseInputServer alloc]
                   initWithName:connectionName
               bundleIdentifier:[bundle bundleIdentifier]];
  [g_imkServer registerRendererConnection];
}
mozc::once_t gOnceForServer = MOZC_ONCE_INIT;
}

@implementation GoogleJapaneseInputServer
- (BOOL)registerRendererConnection {
  NSString *connectionName = @ kProductPrefix "_Renderer_Connection";
  renderer_conection_ = [[NSConnection alloc] init];
  [renderer_conection_ setRootObject:g_imkServer];
  return [renderer_conection_ registerName:connectionName];
}

- (void)sendData:(NSData *)data {
  if (current_controller_ == nil) {
    return;
  }

  mozc::commands::SessionCommand command;
  if (!command.ParseFromArray([data bytes], [data length])) {
    return;
  }

  [current_controller_ sendCommand:command];
}

- (void)outputResult:(NSData *)data {
  mozc::commands::Output output;
  if (!output.ParseFromArray([data bytes], [data length])) {
    return;
  }

  [current_controller_ outputResult:&output];
}

- (void)setCurrentController:(id<ControllerCallback>)controller {
  current_controller_ = controller;
}

+ (GoogleJapaneseInputServer *)getServer {
  mozc::CallOnce(&gOnceForServer, InitializeServer);
  return g_imkServer;
}
@end
