#include "debug.h"
#include "init.h"
#include "globals.h"

int main(int argc, char** argv)
{
 if(argc!=2) return 1;
 int ret;
 DepTree* DPTree;

 SetDebugLevel(INFO);

 COUT(INFO)<<"Parse config file "<<argv[1]<<" ";
 ret=ParseConfigFile(argv[1]); if(ret!=0) { ClearGlobals(); return 1;}
 COUT(INFO)<<"Ok"<<std::endl;
 if(G_tosave.size()==0 && G_toprint.size()==0)
 {
  COUT(WARNING)<<"No actions needed, exiting"<<std::endl;
  ClearGlobals();
  return 0;
 }

 {
  UsedType used, all;
  for(auto& i:G_vars) all.insert(i.first);
  unsigned int tot=G_vars.size();

  DPTree=new DepTree;
  COUT(INFO)<<"Building dependency tree ";
  ret=BuildDepTree(DPTree,used); if(ret!=0) { ClearGlobals(); delete DPTree; return 1;}
  COUT(INFO)<<"Ok"<<std::endl;

  COUT(INFO)<<"Remove unneeded definitions: ";
  for(auto& i:all) if(used.count(i)==0) { delete G_vars[i]; G_vars.erase(i);};
  COUT(INFO)<<(tot-G_vars.size())<<" removed, "<<G_vars.size()<<" remains."<<std::endl;
 }

 RegisterArifmeticFunctions();

 COUT(INFO)<<"Checking functions ";
 ret=CheckFunctions(); if(ret!=0) { ClearGlobals(); delete DPTree; return 1;}
 COUT(INFO)<<"Ok"<<std::endl;

 COUT(INFO)<<"Evaluate tree ";
 ret=DPTree->EvaluateTree(); if(ret!=0) { ClearGlobals(); delete DPTree; return 1;}
 COUT(INFO)<<"Ok"<<std::endl;

 ClearGlobals();
 delete DPTree;
 return 0;
}