// Copyright 2013 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.

#include "mojo/shell/android/mojo_main.h"

#include "base/android/jni_string.h"
#include "base/at_exit.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/message_loop/message_loop.h"
#include "jni/MojoMain_jni.h"
#include "mojo/public/cpp/application/application.h"
#include "mojo/service_manager/service_loader.h"
#include "mojo/service_manager/service_manager.h"
#include "mojo/shell/context.h"
#include "mojo/shell/init.h"
#include "mojo/shell/run.h"
#include "ui/gl/gl_surface_egl.h"

using base::LazyInstance;

namespace mojo {

namespace {

LazyInstance<scoped_ptr<base::MessageLoop> > g_java_message_loop =
    LAZY_INSTANCE_INITIALIZER;

LazyInstance<scoped_ptr<shell::Context> > g_context =
    LAZY_INSTANCE_INITIALIZER;

}  // namespace

static void Init(JNIEnv* env, jclass clazz, jobject context) {
  base::android::ScopedJavaLocalRef<jobject> scoped_context(env, context);

  base::android::InitApplicationContext(env, scoped_context);

  base::CommandLine::Init(0, 0);
  mojo::shell::InitializeLogging();

  g_java_message_loop.Get().reset(new base::MessageLoopForUI);
  base::MessageLoopForUI::current()->Start();

  // TODO(abarth): At which point should we switch to cross-platform
  // initialization?

  gfx::GLSurface::InitializeOneOff();
}

static void Start(JNIEnv* env, jclass clazz, jobject context, jstring jurl) {
  std::vector<GURL> app_urls;
#if defined(MOJO_SHELL_DEBUG_URL)
  app_urls.push_back(GURL(MOJO_SHELL_DEBUG_URL));
  // Sleep for 5 seconds to give the debugger a chance to attach.
  sleep(5);
#else
  if (jurl)
    app_urls.push_back(GURL(base::android::ConvertJavaStringToUTF8(env, jurl)));
#endif

  base::android::ScopedJavaGlobalRef<jobject> activity;
  activity.Reset(env, context);

  shell::Context* shell_context = new shell::Context();
  shell_context->set_activity(activity.obj());

  g_context.Get().reset(shell_context);
  shell::Run(shell_context, app_urls);
}

bool RegisterMojoMain(JNIEnv* env) {
  return RegisterNativesImpl(env);
}

}  // namespace mojo