// Copyright 2017 The Fuchsia 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 "src/ledger/bin/tests/e2e_sync/ledger_app_instance_factory_e2e.h"

#include <lib/fidl/cpp/binding_set.h>
#include <lib/fidl/cpp/optional.h>
#include <lib/fsl/socket/strings.h>
#include <lib/svc/cpp/services.h>

#include <utility>

#include "peridot/lib/convert/convert.h"
#include "src/ledger/bin/fidl/include/types.h"
#include "src/ledger/bin/fidl_helpers/bound_interface_set.h"
#include "src/ledger/bin/testing/ledger_app_instance_factory.h"
#include "src/ledger/cloud_provider_firestore/bin/testing/cloud_provider_factory.h"
#include "src/ledger/lib/firebase_auth/testing/fake_token_manager.h"
#include "src/lib/files/scoped_temp_dir.h"
#include "src/lib/fxl/strings/string_view.h"

namespace ledger {
namespace {
constexpr fxl::StringView kLedgerName = "AppTests";

class LedgerAppInstanceImpl final
    : public LedgerAppInstanceFactory::LedgerAppInstance {
 public:
  LedgerAppInstanceImpl(
      LoopController* loop_controller, rng::Random* random,
      ledger_internal::LedgerRepositoryFactoryPtr ledger_repository_factory,
      SyncParams sync_params,
      cloud_provider_firestore::CloudProviderFactory::UserId user_id);

  void Init(fidl::InterfaceRequest<ledger_internal::LedgerRepositoryFactory>
                repository_factory_request);

 private:
  cloud_provider::CloudProviderPtr MakeCloudProvider() override;
  std::string GetUserId() override;

  SyncParams sync_params_;
  std::unique_ptr<sys::ComponentContext> component_context_;
  cloud_provider_firestore::CloudProviderFactory cloud_provider_factory_;

  fuchsia::sys::ComponentControllerPtr controller_;
  const cloud_provider_firestore::CloudProviderFactory::UserId user_id_;
};

LedgerAppInstanceImpl::LedgerAppInstanceImpl(
    LoopController* loop_controller, rng::Random* random,
    ledger_internal::LedgerRepositoryFactoryPtr ledger_repository_factory,
    SyncParams sync_params,
    cloud_provider_firestore::CloudProviderFactory::UserId user_id)
    : LedgerAppInstanceFactory::LedgerAppInstance(
          loop_controller, convert::ToArray(kLedgerName),
          std::move(ledger_repository_factory)),
      sync_params_(sync_params),
      component_context_(sys::ComponentContext::Create()),
      cloud_provider_factory_(component_context_.get(), random,
                              std::move(sync_params.api_key),
                              std::move(sync_params.credentials)),
      user_id_(std::move(user_id)) {}

void LedgerAppInstanceImpl::Init(
    fidl::InterfaceRequest<ledger_internal::LedgerRepositoryFactory>
        repository_factory_request) {
  cloud_provider_factory_.Init();

  component::Services child_services;
  fuchsia::sys::LaunchInfo launch_info;
  launch_info.url = "fuchsia-pkg://fuchsia.com/ledger#meta/ledger.cmx";
  launch_info.directory_request = child_services.NewRequest();
  launch_info.arguments.push_back("--disable_reporting");
  launch_info.arguments.push_back("--firebase_api_key=" + sync_params_.api_key);
  fuchsia::sys::LauncherPtr launcher;
  component_context_->svc()->Connect(launcher.NewRequest());
  launcher->CreateComponent(std::move(launch_info), controller_.NewRequest());
  child_services.ConnectToService(std::move(repository_factory_request));
}

cloud_provider::CloudProviderPtr LedgerAppInstanceImpl::MakeCloudProvider() {
  cloud_provider::CloudProviderPtr cloud_provider;
  cloud_provider_factory_.MakeCloudProvider(user_id_,
                                            cloud_provider.NewRequest());
  return cloud_provider;
}

std::string LedgerAppInstanceImpl::GetUserId() { return user_id_.user_id(); }

}  // namespace

LedgerAppInstanceFactoryImpl::LedgerAppInstanceFactoryImpl(
    std::unique_ptr<LoopController> loop_controller, SyncParams sync_params)
    : loop_controller_(std::move(loop_controller)),
      sync_params_(std::move(sync_params)),
      user_id_(cloud_provider_firestore::CloudProviderFactory::UserId::New()) {}

LedgerAppInstanceFactoryImpl::~LedgerAppInstanceFactoryImpl() {}

std::unique_ptr<LedgerAppInstanceFactory::LedgerAppInstance>
LedgerAppInstanceFactoryImpl::NewLedgerAppInstance() {
  ledger_internal::LedgerRepositoryFactoryPtr repository_factory;
  fidl::InterfaceRequest<ledger_internal::LedgerRepositoryFactory>
      repository_factory_request = repository_factory.NewRequest();
  auto result = std::make_unique<LedgerAppInstanceImpl>(
      loop_controller_.get(), &random_, std::move(repository_factory),
      sync_params_, user_id_);
  result->Init(std::move(repository_factory_request));
  return result;
}

LoopController* LedgerAppInstanceFactoryImpl::GetLoopController() {
  return loop_controller_.get();
}

rng::Random* LedgerAppInstanceFactoryImpl::GetRandom() { return &random_; }

}  // namespace ledger