// 2019/02/15 - modified by Tsung-Wei Huang

// - refactored the code

//

// 2019/01/17 - created by Chun-Xun

// - added example of using the Framework

#include <taskflow/taskflow.hpp>

int main(){

tf::Taskflow tf;

// Create a framework

tf::Framework f;

auto A = f.emplace([&](){ std::cout << "TaskA\n"; }).name("A");

auto B = f.emplace([&](auto& subflow){

std::cout << "TaskB\n";

auto B1 = subflow.emplace([&](){ std::cout << "TaskB1\n"; }).name("B1");

auto B2 = subflow.emplace([&](){ std::cout << "TaskB2\n"; }).name("B2");

auto B3 = subflow.emplace([&](){ std::cout << "TaskB3\n"; }).name("B3");

B1.precede(B3);

B2.precede(B3);

}).name("B");

auto C = f.emplace([&](){ std::cout << "TaskC\n"; }).name("C");

auto D = f.emplace([&](){ std::cout << "TaskD\n"; }).name("D");

A.precede(B, C);

B.precede(D);

C.precede(D);

std::cout << "Run the framework once without callback\n";

std::cout << "Dump the framework before execution:\n";

f.dump(std::cout);

std::cout << std::endl;

tf.run(f).get();

std::cout << std::endl;

std::cout << "Dump after execution:\n";

tf.dump_topologies(std::cout);

std::cout << std::endl;

std::cout << "Use wait_for_all to wait for the run to finish\n";

tf.run(f);

tf.wait_for_all();

std::cout << std::endl;

std::cout << "Execute the framework two times without a callback\n";

tf.run_n(f, 2).get();

std::cout << "Dump after two executions:\n";

tf.dump_topologies(std::cout);

std::cout << std::endl;

std::cout << "Execute the framework four times with a callback\n";

tf.run_n(f, 4, [] () { std::cout << "The framework finishes\n"; }).get();

std::cout << std::endl;

std::cout << "Run the framework until a counter (init value=3) becomes zero\n";

tf.run_until(f, [counter=3]() mutable {

std::cout << "Counter = " << counter << std::endl;

return counter -- == 0;

}).get();

return 0;

}