example_observable.cpp

Simple example of tc::sdk::observable

// Copyright 2024 TeiaCare
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
/**
 * @example example_observable.cpp
 * @brief Simple example of tc::sdk::observable
 */
 
#include <teiacare/sdk/observable.hpp>
 
#include <spdlog/spdlog.h>
 
int main()
{
    spdlog::set_pattern("[%H:%M:%S.%e] %v");
 
    auto observable = tc::sdk::observable<int>(-1, [](int value) { spdlog::info("Updated: {}", value); });
 
    const int total_updates = 10;
    for (int i = 0; i < total_updates; ++i)
    {
        observable = i; // Trigger updates
    }
 
    spdlog::warn("[Callback Disabled]");
    observable.callback_enabled(false);
    observable = -1; // Does not trigger updates (callback disabled)
 
    spdlog::warn("[Callback Enabled]");
    observable.callback_enabled(true);
    observable = -1; // Does not trigger updates (even if callback is enabled the value is not updated)
    observable = 1;  // Trigger updates (callback enabled and value updated)
    observable = 1;  // Does not trigger updates (the value is not updated)
    observable = 1;  // Does not trigger updates (the value is not updated)
 
    return 0;
}