/*
 * container-test.cc    Container Step 9, Initializer list.
 *
 * Tracer helper class is used to trace use of operations on Tracer objects,
 * i.e. to find out the requirements Container puts on the contained objects.
 * To not get misleading traces, the test program as such must no require any
 * temporary objects of type Tracer.
 */
#include <iostream>
#include <string>
#include "Container.h"
#include "Tracer.h"
using namespace std;

typedef Tracer<string> Trace;

int main()
{
   Trace::on();
   cout << boolalpha;

   cout << "Declaring: Container<Trace> c1;  // default ctor\n";
   Container<Trace> c1;
   cout << "c1.size()     = " << c1.size()     << '\n';
   cout << "c1.capacity() = " << c1.capacity() << '\n';
   cout << "c1.empty()    = " << c1.empty()    << "\n\n";

   cout << "Declaring: Trace one(\"one)\");\n";
   Trace one("one");
   cout << "\nc1.push_back(one)\n";
   c1.push_back(one);
   cout << "c1.size()     = " << c1.size()     << '\n';
   cout << "c1.capacity() = " << c1.capacity() << '\n';
   cout << "c1.empty()    = " << c1.empty()    << "\n\n";

   cout << "Declaring: Trace two()\"two)\");\n";
   Trace two("two");
   cout << "\nc1.push_back(two)\n";
   c1.push_back(two);
   cout << "c1.size()     = " << c1.size()     << '\n';
   cout << "c1.capacity() = " << c1.capacity() << '\n';
   cout << "\nc1.push_back(Trace(\"three\"))\n";
   c1.push_back(Trace("three"));
   cout << "c1.size()     = " << c1.size()     << '\n';
   cout << "c1.capacity() = " << c1.capacity() << '\n';
   cout << "\nc1.push_back(Trace(\"four\"))\n";
   c1.push_back(Trace("four"));
   cout << "c1.size()     = " << c1.size()     << '\n';
   cout << "c1.capacity() = " << c1.capacity() << '\n';
   cout << "\nc1.push_back(Trace(\"five\"))\n";
   c1.push_back(Trace("five"));
   cout << "c1.size()     = " << c1.size()     << '\n';
   cout << "c1.capacity() = " << c1.capacity() << "\n\n";

   cout << "Declaring: Container<Trace> c2(c1); // copy ctor, shrink-to-fit\n";
   Container<Trace> c2(c1);
   cout << "c2.size()     = " << c2.size()     << '\n';
   cout << "c2.capacity() = " << c2.capacity() << '\n';
   cout << "c1.size()     = " << c1.size()     << '\n';
   cout << "c1.capacity() = " << c1.capacity() << "\n\n";

   cout << "c1.push_back(Trace(\"six\"));\n";
   c1.push_back(Trace("six"));
   cout << "c1.size()     = " << c1.size()     << '\n';
   cout << "c1.capacity() = " << c1.capacity() << "\n\n";
   

   cout << "Clearing: c2.clear();\n";
   c2.clear();
   cout << "c2.size()     = " << c2.size()     << '\n';
   cout << "c2.capacity() = " << c2.capacity() << "\n\n";

   cout << "Assigning: c2 = c1; // copy assignment, shrink-to-fit\n";
   c2 = c1;
   cout << "c2.size()     = " << c2.size()     << '\n';
   cout << "c2.capacity() = " << c2.capacity() << "\n\n";

   cout << "Declaring: Container<Trace> c3(std::move(c2));  // move ctor\n";
   Container<Trace> c3(std::move(c2));
   cout << "c2.size()     = " << c2.size()     << '\n';
   cout << "c2.capacity() = " << c2.capacity() << '\n';
   cout << "c3.size()     = " << c3.size()     << '\n';
   cout << "c3.capacity() = " << c3.capacity() << "\n\n";

   cout << "c3.push_back(Trace(\"seven\"));\n";
   c3.push_back(Trace("seven"));
   cout << "c3.size()     = " << c3.size()     << '\n';
   cout << "c3.capacity() = " << c3.capacity() << "\n\n";


   cout << "Assigning: c2 = std::move(c3));  // move assign optor\n";
   c2 = std::move(c3);
   cout << "c2.size()     = " << c2.size()     << '\n';
   cout << "c2.capacity() = " << c2.capacity() << '\n';
   cout << "c3.size()     = " << c3.size()     << '\n';
   cout << "c3.capacity() = " << c3.capacity() << "\n\n";

   cout << "Removing elements from c1, until empty:\n";
   cout << "  c1.size() = " << c1.size()     << '\n';
   while (! c1.empty())
   {
      try
      {
	 cout << "  c1.back() = " << c1.back() << '\n';
	 cout << "  Removing last element\n";
	 c1.pop_back();
	 cout << "  c1.size() = " << c1.size() << '\n';
      }
      catch (const exception& e)
      {
	 cout << "Exception caught: " << e.what() << '\n';
      }
      catch (...)
      {
	 cout << "Unknown exception caught:\n";
      }
   }
   cout << '\n';

   cout << "Placing element in c1: c1.emplace_back(\"foobar\");\n";
   c1.emplace_back("foobar");
   cout << "c1.size()     = " << c1.size()     << '\n';
   cout << "c1.capacity() = " << c1.capacity() << '\n';
   cout << "c1.back()     = " << c1.back()     << "\n\n";

   cout << "Declaring: Container<Trace> c4{ Tracer<string>(\"one\"), Tracer<string>(\"two\"), Tracer<string>(\"three\") };  // initializer_list ctor\n";
   Container<Trace> c4{ Tracer<string>("one"), Tracer<string>("two"), Tracer<string>("three") };
   cout << "c4.size()     = " << c4.size()     << '\n';
   cout << "c4.capacity() = " << c4.capacity() << '\n';
   cout << "c4.back()     = " << c4.back()     << "\n\n";

   cout << "Assigning: c4 = { Tracer<string>(\"uno\"), Tracer<string>(\"dos\") };  // initializer_list assign\n";
   c4 = { Tracer<string>("uno"), Tracer<string>("dos") };
   cout << "c4.size()     = " << c4.size()     << '\n';
   cout << "c4.capacity() = " << c4.capacity() << '\n';
   cout << "c4.back()     = " << c4.back()     << "\n\n";

   cout << "\Program ends.\n";

   return 0;
}