// LayerZPlane_t.cpp

#include "LayerZPlane.h"
#include "trflayer/ClusterFindAll.h"
#include "HitZPlane1.h"
#include "HitZPlane2.h"
#include "trfbase/ETrack.h"
#include "PropZZ.h"
#include "trflayer/LayerStat.h"
#include "BSurfZPlane.h"
#include "trfutil/trfstream.h"
#include <cassert>
#include <string>
#include <sstream>
#include "objstream/StdObjStream.hpp"
#include "trflayer/ClusterContainer.h"

#ifndef DEFECT_NO_STDLIB_NAMESPACES
using std::cout;
using std::cerr;
using std::endl;
using std::string;
using std::ostringstream;
using std::istringstream;
#endif

using namespace trf;

//**********************************************************************

int main( ) {

  string component = "LayerZPlane";
  string ok_prefix = component + " (I): ";
  string error_prefix = component + " test (E): ";

  cout << ok_prefix
       << "---------- Testing component " + component
          + ". ----------" << endl;

  // Make sure assert is enabled.
  bool assert_flag = false;
  assert ( ( assert_flag = true, assert_flag ) );
  if ( ! assert_flag ) {
    cerr << "Assert is disabled" << endl;
    return 1;
  }

  //********************************************************************
  cout << trf_format;

  cout << ok_prefix << "Test constructor." << endl;
  double zpos1 = 20.;
  double zpos2 = 40.;
  MutableClusterFindManagerPtr pfind1 = MutableClusterFindManagerPtr(
    new ClusterFindAll( SurfacePtr(new SurfZPlane(zpos1)) ));
  MutableClusterFindManagerPtr pfind2 = MutableClusterFindManagerPtr(
    new ClusterFindAll( SurfacePtr(new SurfZPlane(zpos2)) ));
  MutableClusterFindManagerPtr pfind3 = MutableClusterFindManagerPtr(
    new ClusterFindAll( SurfacePtr(new SurfZPlane(zpos1)) ));
  LayerZPlane lz_1( SurfZPlanePtr(new SurfZPlane(zpos1)), pfind1 );
  LayerZPlane lz2(SurfZPlanePtr(new SurfZPlane(zpos2)), pfind2 );
  LayerZPlane lz1(lz2);
  lz1 = lz_1;
  LayerZPlane lz3(SurfZPlanePtr(new BSurfZPlane(zpos1, -50.0, 50.0, -60.0 , 60.0)), pfind3 );
  cout << lz2 << endl;

  //********************************************************************

  cout << ok_prefix << "Test type." << endl;
  cout << lz1.get_type() << endl;
  cout << lz2.get_type() << endl;
  assert( lz1.get_type() != 0 );
  assert( lz1.get_type() == lz2.get_type() );

  //********************************************************************

  cout << ok_prefix << "Define a surface and track." << endl;
  SurfZPlane sz0(zpos1);
  SurfZPlane sz1(zpos1-15);
  TrackVector vec;
  vec(0) = 1.0;    // x
  vec(1) = 5.0;    // y
  vec(2) = 0.1;    // dx/dz
  vec(3) = -0.2;   // dy/dz
  vec(4) = 0.002;  // q/p
  TrackError err,err1;
  err.fill(0.0);
  err1.fill(0.0);
  err1(0,0)=err1(1,1)=err1(2,2)=err1(3,3)=err1(4,4)=1000.;
  err(0,0)=err(1,1)=err(2,2)=err(3,3)=err(4,4)=0.01;
  ETrack tre0(SurfacePtr(sz0.new_pure_surface()),vec,err);
  tre0.set_forward();
  ETrack tre(SurfacePtr(sz1.new_pure_surface()),vec,err);
  tre.set_forward();
  cout << tre << endl;

  //********************************************************************

  cout << ok_prefix << "Check cluster access" << endl;
  assert( lz1.has_clusters() );
  lz1.add_cluster(ClusterPtr(new ClusZPlane1(zpos1,1.,1.,1.0,0.1)) );
  lz1.add_cluster(ClusterPtr(new ClusZPlane1(zpos1,1.,1.,2.0,0.1)) );
  lz1.add_cluster(ClusterPtr(new ClusZPlane1(zpos1,1.,1.,3.0,0.1)) );
  const LayerZPlane& lz1c = lz1;
  cout << lz1c.get_clusters().size() << endl;
  assert( lz1c.get_clusters().size() == 3 );

  //********************************************************************

  cout << ok_prefix << "Propagate from inside." << endl;
  PropZZ prop(ObjDoublePtr(new ObjDouble(-2.0)));
  LTrackList ltracks ;
  lz1.propagate(tre,prop,ltracks);
  assert( ltracks.size() == 1 );
  // save a copy of the propagated track
  const LTrack trl1 = ltracks.front();
  const ETrack& tre1 = trl1.get_track();
  const LayerStat& lstat1 = trl1.get_status();
  cout << trl1 << endl;
  assert( lstat1.at_exit() );
  assert( lstat1.get_state() == 1 );
  ltracks.clear(); 
  lz1.propagate(trl1,prop,ltracks);
  assert( ltracks.size() == 0 );
  ltracks.clear();

  //********************************************************************

  cout << ok_prefix << "Check returned miss." << endl;
  assert( ! lstat1.get_miss() );

  //********************************************************************

  cout << ok_prefix << "Check returned clusters." << endl;
  assert( lstat1.has_clusters() );
  assert( lstat1.get_clusters().size() == 3 );
  assert( lstat1.get_clusters(tre,0,0).get_clusters().size() == 3 );

  //********************************************************************

  cout << ok_prefix << "Propagate from outside." << endl;
  SurfZPlane sz2(zpos1+30.);
  tre.set_surface(SurfacePtr(sz2.new_pure_surface()));
  tre.set_backward();
  cout << tre << endl;
  lz1.propagate(tre,prop,ltracks);
  assert( ltracks.size() == 1 );
  // save a copy of the propagated track
  const LTrack trl2 = ltracks.front();
  const ETrack& tre2 = trl2.get_track();
  const LayerStat& lstat2 = trl2.get_status();
  cout << trl2 << endl;
  assert( lstat2.at_exit() );
  assert( lstat2.get_state() == 1 );
  ltracks.clear();
  lz1.propagate(trl2,prop,ltracks);
  assert( ltracks.size() == 0 );
  ltracks.clear();

  //********************************************************************

  cout << ok_prefix << "Propagate backward from outside." << endl;
  TrackVector vec2 = vec;
  ETrack tre30(SurfacePtr(sz2.new_pure_surface()),vec2,err1);
  tre30.set_forward();
  cout << tre30 << endl;
  lz1.propagate(tre30,prop,ltracks);
  assert( ltracks.size() == 1 );
  // save a copy of the propagated track
  const LTrack trl3 = ltracks.front();
  const ETrack& tre3 = trl3.get_track();
  const LayerStat& lstat3 = trl3.get_status();
  cout << trl3 << endl;
  assert( lstat3.at_exit() );
  assert( lstat3.get_state() == 1 );
  ltracks.clear();
  lz1.propagate(trl3,prop,ltracks);
  assert( ltracks.size() == 0 );
  ltracks.clear();

  //********************************************************************

  cout << ok_prefix << "Propagate from layer surface." << endl;
  tre.set_surface(SurfacePtr(sz0.new_pure_surface()));
  tre.set_forward();
  cout << tre << endl;
  lz1.propagate(tre,prop,ltracks);
  assert( ltracks.size() == 1 );
  // save a copy of the propagated track
  const LTrack trl4 = ltracks.front();
  const ETrack& tre4 = trl4.get_track();
  const LayerStat& lstat4 = trl4.get_status();
  cout << trl4 << endl;
  assert( lstat4.at_exit() );
  assert( lstat4.get_state() == 1 );
  ltracks.clear();

  //********************************************************************

  cout << ok_prefix << "Propagate out of bounds." << endl;
  tre.set_surface(SurfacePtr(sz1.new_pure_surface()));
  vec(1) = 300.0;
  tre.set_vector(vec);
  tre.set_forward();
  cout << tre << endl;
  lz1.propagate(tre,prop,ltracks);
  assert( ltracks.size() == 1 );
  // save a copy of the propagated track
  const LTrack trl5 = ltracks.front();
  const ETrack& tre5 = trl5.get_track();
  const LayerStat& lstat5 = trl5.get_status();
  cout << trl5 << endl;
  assert( lstat5.at_exit() );
  assert( lstat5.get_state() == 1 );
  ltracks.clear();

  lz3.propagate(tre,prop,ltracks);
  assert( ltracks.size() == 1 );
  assert(ltracks.front().get_status().get_state() == 3 );
  ltracks.clear();

 //********************************************************************

  cout << ok_prefix << "Propagate in  bounds." << endl;
  vec(1)=5.;
  ETrack tre6(SurfacePtr(sz0.new_pure_surface()),vec,err1); 
  tre6.set_forward();
  cout << tre6 << endl;
  lz3.propagate(tre6,prop,ltracks);
  assert( ltracks.size() == 1 );
  const LTrack trl6 = ltracks.front();
  assert(trl6.get_status().get_state()==1);
  ETrack tre7(SurfacePtr(sz0.new_pure_surface()),vec,err); 
  tre7.set_forward();
  cout << tre7 << endl;
  ltracks.clear();
  lz3.propagate(tre7,prop,ltracks);
  assert( ltracks.size() == 1 );
  const LTrack trl7 = ltracks.front();
  assert(trl7.get_status().get_state()==2);
  ltracks.clear();

 //********************************************************************

  cout << ok_prefix << "Drop clusters." << endl;
  cout << "Before drop: " << lz1.get_clusters().size() << endl;
  assert ( lz1.get_clusters().size() == 3 );
  lz1.drop_clusters();
  cout << "After drop: " << lz1.get_clusters().size() << endl;
  assert ( lz1.get_clusters().size() == 0 );

  //********************************************************************

  ObjTable::register_type<LayerZPlane>();

  cout << ok_prefix << "Write object data." << endl;
  Ptr<SurfZPlane,LocalSharedDeletePolicy> 
    pzp( new SurfZPlane(12.3) );
  MutableClusterFindManagerPtr pfindt( new ClusterFindAll(pzp) );
  {
    ObjPtr pobj( new LayerZPlane(pzp,pfindt) );
    ostringstream mystream;
    StdObjStream objstream(mystream);
    objstream.write_object("zp",pzp);
    objstream.write_object("findall",pfindt);
    objstream.write_object("obj1",pobj);
    cout << mystream.str() << endl;
    assert( ObjTable::has_object_name("obj1") );
    string::size_type pos = 0;
    assert( (pos=mystream.str().find( "obj1 ",pos)) != string::npos );
    assert( (pos=mystream.str().find( "LayerZPlane ",pos)) != string::npos );
    assert( (pos=mystream.str().find( "surface",pos)) != string::npos );
    assert( (pos=mystream.str().find( "zp ",pos)) != string::npos );
    assert( (pos=mystream.str().find( "finder",pos)) != string::npos );
    assert( (pos=mystream.str().find( "findall ",pos)) != string::npos );
  }

  //********************************************************************

  cout << ok_prefix << "Read object data." << endl;
  {
    string istring = "[ obj2 LayerZPlane surface=@zp finder=@findall ]";
    istringstream isstrm(istring);
    {
      StdObjStream obstr(isstrm);
      string name = obstr.read_object();
      assert( name == "obj2" );
      const LayerZPlane* pobj;
      ObjTable::get_object(name,pobj);
      assert( pobj != 0 );
      assert( pobj->get_type() == LayerZPlane::get_static_type() );
      assert( pobj->get_surface() == pzp );
      assert( pobj->get_finder() == pfindt );
    }
  }

  //********************************************************************

  cout << ok_prefix
       << "------------- All tests passed. -------------" << endl;
  return 0;

  //********************************************************************

}