//----------------------------------------------------------------------------
//  EgalTech 2015-2015
//----------------------------------------------------------------------------
// File : LUA_ShortestPath.cpp       Data : 23.12.15       Versione : 1.6l4
// Contenuto : Funzioni di calcolo Shortest Path per LUA.
//
//
//
// Modifiche : 29.09.14 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

//--------------------------- Include ----------------------------------------
#include "stdafx.h"
#include "LUA.h"
#include "/EgtDev/Include/EXeExecutor.h"
#include "/EgtDev/Include/EGkLuaAux.h"
#include "/EgtDev/Include/EGnStringUtils.h"

using namespace std ;

//-------------------------------------------------------------------------------
static int
LuaSpInit( lua_State* L)
{
  // nessun parametro
   LuaClearStack( L) ;
  // inizializzo il calcolatore di minimo percorso
   bool bOk = ExeSpInit() ; 
  // restituisco il risultato
   LuaSetParam( L, bOk) ;
   return 1 ;
}

//-------------------------------------------------------------------------------
static int
LuaSpTerminate( lua_State* L)
{
  // nessun parametro
   LuaClearStack( L) ;
  // termino il calcolatore di minimo percorso
   bool bOk = ExeSpTerminate() ; 
  // restituisco il risultato
   LuaSetParam( L, bOk) ;
   return 1 ;
}

//-------------------------------------------------------------------------------
static int
LuaSpAddPoint( lua_State* L)
{
  // definizione parametri
   double dXi = 0, dYi = 0, dZi = 0, dHi = 0, dVi = 0 ;
   double dXf = 0, dYf = 0, dZf = 0, dHf = 0, dVf = 0 ;
  // recupero numero di parametri
   int nNum = lua_gettop( L) ;
  // 2 parametri : dX, dY
   if ( nNum == 2) {
      LuaCheckParam( L, 1, dXi)
      LuaCheckParam( L, 2, dYi)
      dXf = dXi ;
      dYf = dYi ;
   }
  // 4 parametri : dXi, dYi, dXf, dYf
   else if ( nNum == 4) {
      LuaCheckParam( L, 1, dXi)
      LuaCheckParam( L, 2, dYi)
      LuaCheckParam( L, 3, dXf)
      LuaCheckParam( L, 4, dYf)
   }
  // 10 parametri dXi, dYi, dZi, dHi, dVi, dXf, dYf, dZf, dHf, dVf
   else {
      LuaCheckParam( L, 1, dXi)
      LuaCheckParam( L, 2, dYi)
      LuaCheckParam( L, 3, dZi)
      LuaCheckParam( L, 4, dHi)
      LuaCheckParam( L, 5, dVi)
      LuaCheckParam( L, 6, dXf)
      LuaCheckParam( L, 7, dYf)
      LuaCheckParam( L, 8, dZf)
      LuaCheckParam( L, 9, dHf)
      LuaCheckParam( L, 10, dVf)
   }
   LuaClearStack( L) ;
  // aggiungo il punto
   bool bOk = ExeSpAddPoint( dXi, dYi, dZi, dHi, dVi, dXf, dYf, dZf, dHf, dVf) ; 
  // restituisco il risultato
   LuaSetParam( L, bOk) ;
   return 1 ;
}

//-------------------------------------------------------------------------------
static int
LuaSpSetOpenBound( lua_State* L)
{
  // definizione parametri
   bool bStartVsEnd ;
   int nFlag ;
   double dX = 0, dY = 0, dZ = 0, dH = 0, dV = 0 ;
  // recupero numero di parametri
   int nNum = lua_gettop( L) ;
  // 2 parametri : bStartVsEnd, nFlag
   if ( nNum == 2) {
      LuaCheckParam( L, 1, bStartVsEnd)
      LuaCheckParam( L, 2, nFlag)
   }
  // 4 parametri : bStartVsEnd, nFlag, dX, dY
   else if ( nNum == 4) {
      LuaCheckParam( L, 1, bStartVsEnd)
      LuaCheckParam( L, 2, nFlag)
      LuaCheckParam( L, 3, dX)
      LuaCheckParam( L, 4, dY)
   }
  // 7 parametri : bStartVsEnd, nFlag, dX, dY, dZ, dH, dV
   else {
      LuaCheckParam( L, 1, bStartVsEnd)
      LuaCheckParam( L, 2, nFlag)
      LuaCheckParam( L, 3, dX)
      LuaCheckParam( L, 4, dY)
      LuaCheckParam( L, 5, dZ)
      LuaCheckParam( L, 6, dH)
      LuaCheckParam( L, 7, dV)
   }
   LuaClearStack( L) ;
  // imposto condizione al contorno
   bool bOk = ExeSpSetOpenBound( bStartVsEnd, nFlag, dX, dY, dZ, dH, dV) ; 
  // restituisco il risultato
   LuaSetParam( L, bOk) ;
   return 1 ;
}

//-------------------------------------------------------------------------------
static int
LuaSpSetAngularParams( lua_State* L)
{
  // 4 parametri : dAngHAdd, dAngHMul, dAngVAdd, dAngVMul
   double dAngHAdd ;
   LuaCheckParam( L, 1, dAngHAdd)
   double dAngHMul ;
   LuaCheckParam( L, 2, dAngHMul)
   double dAngVAdd ;
   LuaCheckParam( L, 3, dAngVAdd)
   double dAngVMul ;
   LuaCheckParam( L, 4, dAngVMul)
   LuaClearStack( L) ;
  // imposto parametri per coordinate angolari
   bool bOk = ExeSpSetAngularParams( dAngHAdd, dAngHMul, dAngVAdd, dAngVMul) ; 
  // restituisco il risultato
   LuaSetParam( L, bOk) ;
   return 1 ;
}

//-------------------------------------------------------------------------------
static int
LuaSpSetZzOwStep( lua_State* L)
{
  // 1 parametro : dStep
   double dStep ;
   LuaCheckParam( L, 1, dStep)
   LuaClearStack( L) ;
  // imposto lo step per tipologie ZigZag e OneWay
   bool bOk = ExeSpSetZzOwStep( dStep) ;
  // restituisco il risultato
   LuaSetParam( L, bOk) ;
   return 1 ;
}

//-------------------------------------------------------------------------------
static int
LuaSpCalculate( lua_State* L)
{
  // 1 parametro : nType
   int nType ;
   LuaCheckParam( L, 1, nType)
   LuaClearStack( L) ;
  // eseguo calcolo di minimo percorso
   INTVECTOR vOrder ;
   double dMinLen ;
   bool bOk = ExeSpCalculate( nType)  &&  ExeSpGetOrder( vOrder)  &&  ExeSpGetMinLength( dMinLen) ;
  // restituisco il risultato
   if ( bOk) {
     // aggiusto gli indici per Lua (1 based), sommando 1
      for ( auto& i : vOrder)
         ++ i ;
      LuaSetParam( L, vOrder) ;
      LuaSetParam( L, dMinLen) ;
   }
   else {
      LuaSetParam( L) ;
      LuaSetParam( L) ;
   }
   return 2 ;
}

//-------------------------------------------------------------------------------
bool
LuaInstallShortestPath( LuaMgr& luaMgr)
{
   bool bOk = ( &luaMgr != nullptr) ;
   bOk = bOk && luaMgr.RegisterFunction( "EgtSpInit", LuaSpInit) ;
   bOk = bOk && luaMgr.RegisterFunction( "EgtSpTerminate", LuaSpTerminate) ;
   bOk = bOk && luaMgr.RegisterFunction( "EgtSpAddPoint", LuaSpAddPoint) ;
   bOk = bOk && luaMgr.RegisterFunction( "EgtSpSetOpenBound", LuaSpSetOpenBound) ;
   bOk = bOk && luaMgr.RegisterFunction( "EgtSpSetAngularParams", LuaSpSetAngularParams) ;
   bOk = bOk && luaMgr.RegisterFunction( "EgtSpSetZzOwStep", LuaSpSetZzOwStep) ;
   bOk = bOk && luaMgr.RegisterFunction( "EgtSpCalculate", LuaSpCalculate) ;
   return bOk ;
}