#include <vector>
#include <getfem/getfem_context.h>
#include <iostream>
#include <string>

namespace getfem {
class Foo : public context_dependencies {
   public: 
   explicit Foo(const std::string &name) : myName(name) {}
   void print_dependent(void);
   void print_dependencies(void);
   void update_from_context(void) const;
   std::string myName;
};

void Foo::update_from_context(void) const {
  std::cout << "Do nothing on update from context" << "\n";
}

void Foo::print_dependent(void)  {
  std::cout << "Dependent objects for " << myName << " " << (void*) this <<  ": \n"; 
  if (dependent.size() < 1) {
    std::cout << "     No depentend objects\n";
  } else { 
    iterator_list it = dependent.begin(), ite = dependent.end();
    for (; it != ite; ++it) {
      std::cout <<  "   "  << (void*) *it <<"\n";
    }
  }
}

void Foo::print_dependencies(void)  {
  std::cout << "Dependencies objects for " << myName << " " << (void*) this <<  ": \n"; 
  if (dependencies.size() < 1) {
    std::cout << "     No dependencies objects\n";
  } else { 
    iterator_list it = dependencies.begin(), ite = dependencies.end();
    for (; it != ite; ++it) {
      std::cout <<  "   "  << (void*) *it << "\n";
    }
  }
}

} /* namespace getfem */
int main() {

   getfem::Foo master("Master");
   getfem::Foo slave("Slave");
   getfem::Foo master2("Master 2");

   master.add_dependency(slave);

   master.print_dependent();
   master.print_dependencies();

   std::cout << "\n\n --------------\n\n";
   slave.print_dependent();
   slave.print_dependencies();

   master2 = master; 

   std::cout << "\n\n --------------\n\n";
   master2.print_dependent();
   master2.print_dependencies();

}