/*
    Copyright (c) 2012, 2013
    Artur Meski <meski@ipipan.waw.pl>
*/

#include "formrsctlk.hh"
#include "rs.hh"

std::string FormRSCTLK::toStr(void) const
{
  if (oper == RSCTLK_PV) {
    return proc_name + "." + entity_name;
  }
  else if (oper == RSCTLK_TF) {
    if (tf) {
      return "true";
    }
    else {
      return "false";
    }
  }
  else if (oper == RSCTLK_AND) {
    return "(" + arg[0]->toStr() + " AND " + arg[1]->toStr() + ")";
  }
  else if (oper == RSCTLK_OR) {
    return "(" + arg[0]->toStr() + " OR " + arg[1]->toStr() + ")";
  }
  else if (oper == RSCTLK_XOR) {
    return "(" + arg[0]->toStr() + " XOR " + arg[1]->toStr() + ")";
  }
  else if (oper == RSCTLK_IMPL) {
    return "(" + arg[0]->toStr() + " IMPLIES " + arg[1]->toStr() + ")";
  }
  else if (oper == RSCTLK_NOT) {
    return "~" + arg[0]->toStr();
  }
  else if (oper == RSCTLK_EX) {
    return "EX(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_EG) {
    return "EG(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_EU) {
    return "EU(" + arg[0]->toStr() + "," + arg[1]->toStr() + ")";
  }
  else if (oper == RSCTLK_EF) {
    return "EF(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_AX) {
    return "AX(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_AG) {
    return "AG(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_AU) {
    return "AU(" + arg[0]->toStr() + "," + arg[1]->toStr() + ")";
  }
  else if (oper == RSCTLK_AF) {
    return "AF(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_EX_ACT) {
    return "E" + getActionsStr() + "X(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_EG_ACT) {
    return "E" + getActionsStr() + "G(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_EU_ACT) {
    return "E" + getActionsStr() + "U(" + arg[0]->toStr() + "," + arg[1]->toStr()
           + ")";
  }
  else if (oper == RSCTLK_EF_ACT) {
    return "E" + getActionsStr() + "F(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_AX_ACT) {
    return "A" + getActionsStr() + "X(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_AG_ACT) {
    return "A" + getActionsStr() + "G(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_AU_ACT) {
    return "A" + getActionsStr() + "U(" + arg[0]->toStr() + "," + arg[1]->toStr()
           + ")";
  }
  else if (oper == RSCTLK_AF_ACT) {
    return "A" + getActionsStr() + "F(" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_NK) {
    return "NK[" + getSingleAgent() + "](" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_UK) {
    return "K[" + getSingleAgent() + "](" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_NC) {
    return "NC[" + getAgentsStr() + "](" + arg[0]->toStr() + ")";
  }
  else if (oper == RSCTLK_UC) {
    return "C[" + getAgentsStr() + "](" + arg[0]->toStr() + ")";
  }


  else {
    return "??";
    assert(0);
  }
}

bool FormRSCTLK::hasOper(Oper op) const
{
  if (oper == op) {
    return true;
  }
  else {
    bool result = false;

    if (arg[0] != nullptr) {
      result = arg[0]->hasOper(op);
    }

    if (!result && arg[1] != nullptr) {
      result = arg[1]->hasOper(op);
    }

    return result;
  }
}

void FormRSCTLK::encodeEntities(const SymRS *srs)
{
  if (RSCTLK_COND_1ARG(oper)) {
    arg[0]->encodeEntities(srs);
  }
  else if (RSCTLK_COND_2ARG(oper)) {
    arg[0]->encodeEntities(srs);
    arg[1]->encodeEntities(srs);
  }
  else if (oper == RSCTLK_PV) {
    bdd = new BDD(srs->encEntity(proc_name, entity_name));
  }
}

bool FormRSCTLK::isERSCTLK(void) const
{
  if (oper == RSCTLK_PV) {
    return true;
  }

  if (oper == RSCTLK_NOT) {
    if (arg[0]->getOper() == RSCTLK_PV || arg[0]->getOper() == RSCTLK_TF) {
      return true;
    }
    else {
      return false;
    }
  }

  if (RSCTLK_COND_IS_UNIVERSAL(oper)) {
    return false;
  }

  if (RSCTLK_COND_1ARG(oper)) {
    return arg[0]->isERSCTLK();
  }

  if (RSCTLK_COND_2ARG(oper)) {
    return arg[0]->isERSCTLK() && arg[1]->isERSCTLK();
  }

  assert(0);

  return false;
}

std::string FormRSCTLK::getActionsStr(void) const
{
  if (boolCtx != nullptr) {
    return "< " + boolCtx->toStr() + " >";
  }
  else {
    FERROR("Context not specified. This should not happen.");
  }
}

void FormRSCTLK::encodeActions(const SymRS *srs)
{
  if (RSCTLK_COND_ACT(oper)) {
    if (actions_bdd != nullptr) {
      forgetActionsBDD();
    }

    actions_bdd = new BDD(srs->getBDDfalse());
    assert(boolCtx != nullptr);
    if (boolCtx != nullptr) {
      *actions_bdd = boolCtx->getBDDforContext(srs);
    }
    else {
      assert(0);
    }
  }

  if (RSCTLK_COND_1ARG(oper)) {
    arg[0]->encodeActions(srs);
  }

  if (RSCTLK_COND_2ARG(oper)) {
    arg[0]->encodeActions(srs);
    arg[1]->encodeActions(srs);
  }
}

std::string FormRSCTLK::getAgentsStr(void) const
{
  std::string r = "";
  bool first = true;

  for (const auto &a : agents) {
    if (first) {
      first = false;
    }
    else {
      r += " ";
    }

    r += a;
  }

  return r;
}

ProcSet FormRSCTLK::getAgentsAsProcSet(RctSys *rs) const
{
  ProcSet processes;

  for (auto &a : agents) {
    processes.insert(rs->getProcessID(a));
  }

  return processes;
}