// Copyright 2014 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 "chrome/browser/ash/file_system_provider/operations/add_watcher.h"

#include <memory>
#include <string>
#include <vector>

#include "base/bind.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "chrome/browser/ash/file_system_provider/icon_set.h"
#include "chrome/browser/ash/file_system_provider/operations/test_util.h"
#include "chrome/browser/ash/file_system_provider/provided_file_system_interface.h"
#include "chrome/common/extensions/api/file_system_provider.h"
#include "chrome/common/extensions/api/file_system_provider_capabilities/file_system_provider_capabilities_handler.h"
#include "chrome/common/extensions/api/file_system_provider_internal.h"
#include "extensions/browser/event_router.h"
#include "storage/browser/file_system/async_file_util.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace ash {
namespace file_system_provider {
namespace operations {
namespace {

const char kExtensionId[] = "mbflcebpggnecokmikipoihdbecnjfoj";
const char kFileSystemId[] = "testing-file-system";
const int kRequestId = 2;
const base::FilePath::CharType kEntryPath[] =
    FILE_PATH_LITERAL("/kitty/and/puppy/happy");

}  // namespace

class FileSystemProviderOperationsAddWatcherTest : public testing::Test {
 protected:
  FileSystemProviderOperationsAddWatcherTest() {}
  ~FileSystemProviderOperationsAddWatcherTest() override {}

  void SetUp() override {
    file_system_info_ = ProvidedFileSystemInfo(
        kExtensionId, MountOptions(kFileSystemId, "" /* display_name */),
        base::FilePath(), false /* configurable */, true /* watchable */,
        extensions::SOURCE_FILE, IconSet());
  }

  ProvidedFileSystemInfo file_system_info_;
};

TEST_F(FileSystemProviderOperationsAddWatcherTest, Execute) {
  using extensions::api::file_system_provider::AddWatcherRequestedOptions;

  util::LoggingDispatchEventImpl dispatcher(true /* dispatch_reply */);
  util::StatusCallbackLog callback_log;

  AddWatcher add_watcher(
      NULL, file_system_info_, base::FilePath(kEntryPath), true /* recursive */,
      base::BindOnce(&util::LogStatusCallback, &callback_log));
  add_watcher.SetDispatchEventImplForTesting(
      base::BindRepeating(&util::LoggingDispatchEventImpl::OnDispatchEventImpl,
                          base::Unretained(&dispatcher)));

  EXPECT_TRUE(add_watcher.Execute(kRequestId));

  ASSERT_EQ(1u, dispatcher.events().size());
  extensions::Event* event = dispatcher.events()[0].get();
  EXPECT_EQ(
      extensions::api::file_system_provider::OnAddWatcherRequested::kEventName,
      event->event_name);
  base::ListValue* event_args = event->event_args.get();
  ASSERT_EQ(1u, event_args->GetList().size());

  const base::Value* options_as_value = &event_args->GetList()[0];
  ASSERT_TRUE(options_as_value->is_dict());

  AddWatcherRequestedOptions options;
  ASSERT_TRUE(
      AddWatcherRequestedOptions::Populate(*options_as_value, &options));
  EXPECT_EQ(kFileSystemId, options.file_system_id);
  EXPECT_EQ(kRequestId, options.request_id);
  EXPECT_EQ(kEntryPath, options.entry_path);
  EXPECT_TRUE(options.recursive);
}

TEST_F(FileSystemProviderOperationsAddWatcherTest, Execute_NoListener) {
  util::LoggingDispatchEventImpl dispatcher(false /* dispatch_reply */);
  util::StatusCallbackLog callback_log;

  AddWatcher add_watcher(
      NULL, file_system_info_, base::FilePath(kEntryPath), true /* recursive */,
      base::BindOnce(&util::LogStatusCallback, &callback_log));
  add_watcher.SetDispatchEventImplForTesting(
      base::BindRepeating(&util::LoggingDispatchEventImpl::OnDispatchEventImpl,
                          base::Unretained(&dispatcher)));

  EXPECT_FALSE(add_watcher.Execute(kRequestId));
}

TEST_F(FileSystemProviderOperationsAddWatcherTest, OnSuccess) {
  util::LoggingDispatchEventImpl dispatcher(true /* dispatch_reply */);
  util::StatusCallbackLog callback_log;

  AddWatcher add_watcher(
      NULL, file_system_info_, base::FilePath(kEntryPath), true /* recursive */,
      base::BindOnce(&util::LogStatusCallback, &callback_log));
  add_watcher.SetDispatchEventImplForTesting(
      base::BindRepeating(&util::LoggingDispatchEventImpl::OnDispatchEventImpl,
                          base::Unretained(&dispatcher)));

  EXPECT_TRUE(add_watcher.Execute(kRequestId));

  add_watcher.OnSuccess(kRequestId, std::make_unique<RequestValue>(),
                        false /* has_more */);
  ASSERT_EQ(1u, callback_log.size());
  EXPECT_EQ(base::File::FILE_OK, callback_log[0]);
}

TEST_F(FileSystemProviderOperationsAddWatcherTest, OnError) {
  util::LoggingDispatchEventImpl dispatcher(true /* dispatch_reply */);
  util::StatusCallbackLog callback_log;

  AddWatcher add_watcher(
      NULL, file_system_info_, base::FilePath(kEntryPath), true /* recursive */,
      base::BindOnce(&util::LogStatusCallback, &callback_log));
  add_watcher.SetDispatchEventImplForTesting(
      base::BindRepeating(&util::LoggingDispatchEventImpl::OnDispatchEventImpl,
                          base::Unretained(&dispatcher)));

  EXPECT_TRUE(add_watcher.Execute(kRequestId));

  add_watcher.OnError(kRequestId, std::make_unique<RequestValue>(),
                      base::File::FILE_ERROR_TOO_MANY_OPENED);
  ASSERT_EQ(1u, callback_log.size());
  EXPECT_EQ(base::File::FILE_ERROR_TOO_MANY_OPENED, callback_log[0]);
}

}  // namespace operations
}  // namespace file_system_provider
}  // namespace ash
