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// 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 <vector>
#include <fuchsia/timezone/cpp/fidl.h>
#include <lib/fidl/cpp/binding_set.h>
#include <lib/sys/cpp/component_context.h>
#include "third_party/icu/source/common/unicode/strenum.h"
namespace time_zone {
// Implementation of the FIDL time service. Handles setting/getting the
// timezone offset by ICU timezone ID. Also supports getting the raw UTC
// offset in minutes.
// For information on ICU ID's and timezone information see:
class TimezoneImpl : public fuchsia::timezone::Timezone {
// Constructs the time service with a caller-owned application context.
TimezoneImpl(std::unique_ptr<sys::ComponentContext> context,
const char icu_data_path[], const char tz_id_path[]);
// |Timezone|:
void GetTimezoneOffsetMinutes(
int64_t milliseconds, GetTimezoneOffsetMinutesCallback callback) override;
void SetTimezone(std::string timezone_id,
SetTimezoneCallback callback) override;
void GetTimezoneId(GetTimezoneIdCallback callback) override;
void Watch(fidl::InterfaceHandle<fuchsia::timezone::TimezoneWatcher> watcher)
bool Init();
// Destroys a watcher proxy (called upon a connection error).
void ReleaseWatcher(fuchsia::timezone::TimezoneWatcher* watcher);
// Alerts all watchers when an update has occurred.
void NotifyWatchers(const fidl::StringPtr& new_timezone_id);
// Returns true if |timezone_id| is a valid timezone.
bool IsValidTimezoneId(const fidl::StringPtr& timezone_id);
// Private implementation of TimezoneImpl::GetTimezoneId, for use in other
// methods. Returns a guaranteed-valid timezone ID.
fidl::StringPtr GetTimezoneIdImpl();
std::unique_ptr<sys::ComponentContext> context_;
const char* const icu_data_path_;
const char* const tz_id_path_;
// Set to true iff |icu_data_| has been mapped, and the data contained therein
// is the correct format (when Init() is successful).
bool valid_;
fidl::BindingSet<fuchsia::timezone::Timezone> bindings_;
std::vector<fuchsia::timezone::TimezoneWatcherPtr> watchers_;
} // namespace time_zone