// LayerCylinder_t.cpp

#include "LayerCylinder.h"
#include <cassert>
#include <string>
#include <sstream>
#include "objstream/StdObjStream.hpp"
#include "trfutil/trfstream.h"
#include "trfbase/ETrack.h"
#include "trfbase/MissTest.h"
#include "trflayer/ClusterFindAll.h"
#include "trflayer/LayerStat.h"
#include "HitCylPhi.h"
#include "PropCyl.h"
#include "trflayer/ClusterContainer.h"

using std::cout;
using std::cerr;
using std::endl;
using std::string;
using std::ostringstream;
using std::istringstream;

using namespace trf;

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

int main( ) {

  string component = "LayerCylinder";
  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;
  }

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

  ObjTable::register_type<LayerCylinder>();

  cout << trf_format;
  cout << ok_prefix << "Test constructor." << endl;
  SurfacePtr pfsrf1( new SurfCylinder(20.0) );
  MutableClusterFindManagerPtr pfind1( new ClusterFindAll(pfsrf1) );
  double par1 = 123.;
  double like1 = 0.246;
  Miss* pmiss = new MissTest(par1,like1);
  MissPtr pmiss1(pmiss);
  assert( pmiss1->get_likelihood() == like1 );
  SurfacePtr pfsrf2( new BSurfCylinder(40.0,-50.,50.) );
  MutableClusterFindManagerPtr pfind2( new ClusterFindAll(pfsrf2) );
  LayerCylinder lcy1( 20.0, -50.0, 50.0, pfind1, pmiss1 );
  LayerCylinder lcy2( 40.0, -70.0, 70.0, pfind2 );
  cout << lcy1 << endl;

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

  cout << ok_prefix << "Test type." << endl;
  cout << lcy1.get_type() << endl;
  cout << lcy2.get_type() << endl;
  assert( lcy1.get_type() != 0 );
  assert( lcy1.get_type() == LayerCylinder::get_static_type() );
  assert( lcy1.get_type() == lcy2.get_type() );

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

  cout << ok_prefix << "Define a surface and track." << endl;
  SurfacePtr psrf0( new SurfCylinder(20.0) );
  SurfacePtr psrf1( new SurfCylinder(5.0) );
  TrackVector vec;
  vec(0) = 1.0;    // phi
  vec(1) = 5.0;    // z
  vec(2) = 0.1;    // alpha
  vec(3) = -0.2;   // lambda
  vec(4) = 0.002;  // q/p
  TrackError err;
  err.fill(0.0);
  err(0,0) = 0.01;
  err(1,1) = 0.02;
  err(2,2) = 0.03;
  err(3,3) = 0.04;
  err(4,4) = 0.05;
  ETrack tre0(psrf0,vec,err);
  ETrack tre(psrf1,vec,err);
  cout << tre << endl;

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

  cout << ok_prefix << "Test surface." << endl;
  SurfacePtr psrf = lcy1.get_cluster_surfaces().front();
  {
    const SurfacePtr& psrf3 = lcy1.get_surface();
    cout << *psrf3 << endl;
    assert( lcy1.get_cluster_surfaces().size() == 1 );
    assert( *psrf3 == *psrf );
  }

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

  cout << ok_prefix << "Check cluster access" << endl;
  assert( lcy1.has_clusters() );
  lcy1.add_cluster(new ClusCylPhi(20,1.0,0.1) );
  lcy1.add_cluster(new ClusCylPhi(20,2.0,0.1) );
  lcy1.add_cluster(new ClusCylPhi(20,3.0,0.1) );
  const LayerCylinder& lcy1c = lcy1;
  cout << lcy1c.get_clusters().size() << endl;
  assert( lcy1c.get_clusters().size() == 3 );
  assert( lcy1c.get_clusters(psrf).size() == 3 );

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

  cout << ok_prefix << "Propagate from inside." << endl;
  PropCyl prop(ObjDoublePtr(new ObjDouble(-2.0)));
  LTrackList ltracks;
  lcy1.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.erase(ltracks.begin(), ltracks.end());
  assert( ltracks.size() == 0 );
  lcy1.propagate(trl1,prop,ltracks);
  assert( ltracks.size() == 0 );

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

  cout << ok_prefix << "Check returned miss." << endl;
  assert( lstat1.get_miss() != 0 );
  pmiss->update(tre1);
  assert( lstat1.get_miss()->get_likelihood() ==
          pmiss1->get_likelihood() );

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

  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;
  SurfacePtr psrf2( new SurfCylinder(50.0) );
  tre.set_surface(psrf2);
  cout << tre << endl;
  ltracks.erase(ltracks.begin(), ltracks.end());
  assert( ltracks.size() == 0 );
  lcy1.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.erase(ltracks.begin(), ltracks.end());
  assert( ltracks.size() == 0 );
  lcy1.propagate(trl2,prop,ltracks);
  assert( ltracks.size() == 0 );

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

  cout << ok_prefix << "Propagate backward from outside." << endl;
  TrackVector vec2 = vec;
  vec2(2) = -3.1;
  ETrack tre30(psrf2,vec2,err);
  cout << tre30 << endl;
  ltracks.erase(ltracks.begin(), ltracks.end());
  assert( ltracks.size() == 0 );
  lcy1.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.erase(ltracks.begin(), ltracks.end());
  assert( ltracks.size() == 0 );
  lcy1.propagate(trl3,prop,ltracks);
  assert( ltracks.size() == 0 );
  
  //********************************************************************

  cout << ok_prefix << "Propagate from layer surface." << endl;
  SurfacePtr psrf3( new SurfCylinder(20.0) );
  tre.set_surface(psrf3);
  cout << tre << endl;
  ltracks.erase(ltracks.begin(), ltracks.end());
  assert( ltracks.size() == 0 );
  lcy1.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 );

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

  cout << ok_prefix << "Propagate out of bounds." << endl;
  tre.set_surface(psrf1);
  vec(1) = 300.0;
  tre.set_vector(vec);
  cout << tre << endl;
  ltracks.erase(ltracks.begin(), ltracks.end());
  assert( ltracks.size() == 0 );
  lcy1.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 );

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

  cout << ok_prefix << "Drop clusters." << endl;
  cout << "Before drop: " << lcy1.get_clusters().size() << endl;
  assert ( lcy1.get_clusters().size() == 3 );
  lcy1.drop_clusters();
  cout << "After drop: " << lcy1.get_clusters().size() << endl;
  assert ( lcy1.get_clusters().size() == 0 );

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

  cout << ok_prefix << "Write object data." << endl;
  Ptr<BSurfCylinder,LocalSharedDeletePolicy> 
    pbcyl( new BSurfCylinder(12.3,-123,+246.) );
  MutableClusterFindManagerPtr pfind( new ClusterFindAll(pbcyl) );
  {
    ObjPtr pobj( new LayerCylinder(pbcyl,pfind) );
    ostringstream mystream;
    StdObjStream objstream(mystream);
    objstream.write_object("bcyl",pbcyl);
    objstream.write_object("findall",pfind);
    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( "LayerCylinder ",pos)) != string::npos );
    assert( (pos=mystream.str().find( "surface",pos)) != string::npos );
    assert( (pos=mystream.str().find( "bcyl ",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 LayerCylinder surface=@bcyl finder=@findall ]";
    istringstream isstrm(istring);
    {
      StdObjStream obstr(isstrm);
      string name = obstr.read_object();
      assert( name == "obj2" );
      const LayerCylinder* pobj;
      ObjTable::get_object(name,pobj);
      assert( pobj != 0 );
      assert( pobj->get_type() == LayerCylinder::get_static_type() );
      assert( pobj->get_surface() == pbcyl );
      assert( pobj->get_finder() == pfind );
    }
  }

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

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

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

}