// Ten przykład celowo łamie reguły dobrego stylu kodowania.

#include "tst.h"
#include <cassert>
#include <iostream>
#include <stdexcept>
#include <string>

void
example1()
{
  TST <> t1;
  auto t2 = t1 + "dog";
  assert(t2.exist("dog"));
  std::cout << "End of example 1.\n";
}

void
example2()
{
  TST<> tst;
  assert(!tst.exist(""));
  auto tst2 = tst + "";
  assert(!tst2.exist(""));
  std::cout << "End of example 2.\n";
}

void
example3()
{
  TST<> tst{"a"};
  assert(tst.center().empty());
  std::cout << "End of example 3.\n";
}

void
example4()
{
  TST<> tst{ std::string{ "category" } };
  assert((tst + std::string{ "functor" } + std::string{ "theory" }).prefix("theology") == "theo");
  assert((tst + std::string{ "functor" } + std::string{ "theory" }).prefix("cftheology") == "c");
  auto tst2{ tst + std::string{ "functor" } + std::string{ "theory" } };
  auto tst3{ tst + std::string{ "functor" } + std::string{ "cftheory" } };
  assert(tst2.prefix("cftheology") == "c");
  assert(tst3.prefix("cftheology") == "cftheo");
  assert(tst2.prefix("theology") == "theo");
  assert(tst3.prefix("theology").empty());
  std::cout << "End of example 4.\n";
}

void
example5()
{
  TST<int> t1;
  auto t2 = t1 + std::basic_string<int>{1, 2, 3};
  auto t3 = t2 + std::basic_string<int>{1, 2};
  assert(t2.value() == 1);
  assert(t2.center().value() == 2);
  assert(t2.center().center().value() == 3);
  assert(t3.value() == 1);
  assert(t3.center().value() == 2);
  assert(t3.center().center().value() == 3);
  assert(!t2.word());
  assert(!t2.center().word());
  assert(t2.center().center().word());
  assert(!t3.word());
  assert(t3.center().word());
  assert(t3.center().center().word());

  assert(t2.left().empty());
  assert(!t2.center().empty());
  assert(t2.right().empty());
  assert(t2.center().left().empty());
  assert(!t2.center().center().empty());
  assert(t2.center().right().empty());
  assert(t2.center().center().left().empty());
  assert(t2.center().center().center().empty());
  assert(t2.center().center().right().empty());


  assert(t3.left().empty());
  assert(!t3.center().empty());
  assert(t3.right().empty());
  assert(t3.center().left().empty());
  assert(!t3.center().center().empty());
  assert(t3.center().right().empty());
  assert(t3.center().center().left().empty());
  assert(t3.center().center().center().empty());
  assert(t3.center().center().right().empty());
  std::cout << "End of example 5.\n";
}

int
main()
{
  example1();
  example2();
  example3();
  example4();
  example5();
}