/* Copyright (C) 2014 InfiniDB, Inc.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; version 2 of
   the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301, USA. */

#include <string>
#include <stdexcept>
#include <typeinfo>
using namespace std;

#include <cppunit/extensions/HelperMacros.h>

#include <sstream>
#include <exception>
#include <iostream>
#include <unistd.h>

#include "messagequeue.h"
#include "bytestream.h"
using namespace messageqcpp;

#include "calpontselectexecutionplan.h"
#include "simplefilter.h"
#include "simplecolumn.h"
#include "expressionparser.h"
#include "constantcolumn.h"
#include "treenode.h"
#include "operator.h"
#include "arithmeticcolumn.h"
#include "aggregatecolumn.h"
#include "selectfilter.h"
//#include "conditionfilter.h"
//#include "existsfilter.h"

extern "C" char* cplus_demangle_with_style(const char*, int, int);
extern "C" void init_demangler(int, int, int);

using namespace execplan;

class ExecPlanTest : public CppUnit::TestFixture
{
  CPPUNIT_TEST_SUITE(ExecPlanTest);

  CPPUNIT_TEST(selectExecutionPlan_20);

  CPPUNIT_TEST_SUITE_END();

 private:
 public:
  static void walkfnString(const ParseTree* n)
  {
    char* r;
    static bool is_init = false;
    const char* mname = typeid(*(n->data())).name();

    if (!is_init)
    {
      ::init_demangler(0, 0, 0);
      is_init = true;
    }

    r = ::cplus_demangle_with_style(mname, 7, 27);

    if (r != 0)
    {
      // cout << "mangle: " << mname << " demangle: " << r << endl;
      ::free(r);
    }

    if (typeid(*(n->data())) == typeid(SimpleFilter))
    {
      cout << "SimpleFilter: " << endl;
      const SimpleFilter* sf = dynamic_cast<SimpleFilter*>(n->data());
      const ReturnedColumn* lhs = sf->lhs();
      const ReturnedColumn* rhs = sf->rhs();
      const Operator* op = sf->op();
      cout << '\t' << lhs->data() << ' ' << op->data() << ' ' << rhs->data();
      cout << endl << "\t\t";

      if (typeid(*lhs) == typeid(SimpleColumn))
      {
        cout << "SimpleColumn: " << lhs->data() << " / ";
      }
      else if (typeid(*lhs) == typeid(ConstantColumn))
      {
        cout << "ConstantColumn: " << lhs->data() << " / ";
      }
      else
      {
        cout << "UNK: " << lhs->data() << " / ";
      }

      cout << "Operator: " << op->data() << " / ";

      if (typeid(*rhs) == typeid(SimpleColumn))
      {
        cout << "SimpleColumn: " << rhs->data();
      }
      else if (typeid(*rhs) == typeid(ConstantColumn))
      {
        cout << "ConstantColumn: " << rhs->data();
      }
      else
      {
        cout << "UNK: " << rhs->data();
      }
    }
    else if (typeid(*(n->data())) == typeid(Operator))
    {
      cout << "Operator: ";
      const Operator* op = dynamic_cast<Operator*>(n->data());
      cout << '\t' << op->data();
    }
    else
    {
      cout << mname << " -x-: ";
    }

    cout << endl;
  }

  void setUp()
  {
  }

  void tearDown()
  {
  }

  void selectExecutionPlan_20()
  {
    cout << "SQL: \
select \
	s_name, \
	s_address \
from \
	supplier, \
	nation \
where \
	s_suppkey in ( \
		select \
			ps_suppkey \
		from \
			partsupp \
		where \
			ps_partkey in ( \
				select \
					p_partkey \
				from \
					part \
				where \
					p_name like ':1%' \
			) \
			and ps_availqty > ( \
				select \
					0.5 * sum(l_quantity) \
				from \
					lineitem \
				where \
					l_partkey = ps_partkey \
					and l_suppkey = ps_suppkey \
					and l_shipdate >= date ':2' \
					and l_shipdate < date ':2' + interval '1' year \
			) \
	) \
	and s_nationkey = n_nationkey \
	and n_name = ':3' \
order by \
	s_name;"
         << endl;

    /* ------------The create view statement is being re-written as an inline view  ----- */
    /* ------------ (dynamic table) to be used in a from cluase.                    ----- */

    // This is the main query body for query 20
    CalpontSelectExecutionPlan* csep = new CalpontSelectExecutionPlan();

    // Create the Projection (returned columns)
    CalpontSelectExecutionPlan::ReturnedColumnList colList;
    SimpleColumn* c1 = new SimpleColumn("tpch.supplier.s_name");
    colList.push_back(c1);
    SimpleColumn* c2 = new SimpleColumn("tpch.supplier.s_address");
    colList.push_back(c2);
    csep->returnedCols(colList);  // set Projection columns

    cout << "I am here 1" << endl;
    // Filter columns (csep)
    CalpontSelectExecutionPlan::FilterTokenList csep_filterlist;

    //   --------------- first sub select begins here ----------------  x
    // Sub select filter
    CalpontSelectExecutionPlan* sub01csep = new CalpontSelectExecutionPlan(CalpontSelectExecutionPlan::WHERE);

    // subselect return column(s)
    CalpontSelectExecutionPlan::ReturnedColumnList sub01ColList;

    SimpleColumn* s01c1 = new SimpleColumn("tpch.partsupp.ps_suppkey");
    sub01ColList.push_back(s01c1);
    // Append returned columns to subselect
    sub01csep->returnedCols(sub01ColList);

    cout << "I am here 2" << endl;
    // subselect Filters (sub011csep)
    CalpontSelectExecutionPlan::FilterTokenList sub01csep_filterlist;

    //   --------------- inner sub select begins here ----------------  x
    // Sub select filter
    CalpontSelectExecutionPlan* sub011csep =
        new CalpontSelectExecutionPlan(CalpontSelectExecutionPlan::WHERE);

    // subselect return column(s)
    CalpontSelectExecutionPlan::ReturnedColumnList sub011ColList;

    SimpleColumn* s011c1 = new SimpleColumn("tpch.part.p_partkey");
    sub011ColList.push_back(s011c1);
    // Append returned columns to subselect
    sub011csep->returnedCols(sub011ColList);

    cout << "I am here 3" << endl;
    // subselect Filters (sub011csep)
    CalpontSelectExecutionPlan::FilterTokenList sub011csep_filterlist;
    SimpleFilter* s011f1 = new SimpleFilter(new Operator("LIKE"), new SimpleColumn("tpch.part.p_name"),
                                            new ConstantColumn("%:1"));
    sub011csep_filterlist.push_back(s011f1);
    sub011csep->filterTokenList(sub011csep_filterlist);

    //   --------------- inner sub ends here ----------------  x

    //   --------------- second inner sub select begins here ----------------  x
    // Sub select filter
    CalpontSelectExecutionPlan* sub012csep =
        new CalpontSelectExecutionPlan(CalpontSelectExecutionPlan::WHERE);

    // subselect return column(s)
    CalpontSelectExecutionPlan::ReturnedColumnList sub012ColList;

    ArithmeticColumn* s012c1 = new ArithmeticColumn("0.5 * sum(l_quantity)");
    sub012ColList.push_back(s012c1);
    // Append returned columns to subselect
    sub012csep->returnedCols(sub012ColList);

    cout << "I am here 31" << endl;
    // subselect Filters (sub012csep)
    CalpontSelectExecutionPlan::FilterTokenList sub012csep_filterlist;
    SimpleFilter* s012f1 = new SimpleFilter(new Operator("="), new SimpleColumn("tpch.lineitem.l_partkey"),
                                            new SimpleColumn("tpch.partsupp.ps_partkey"));
    sub012csep_filterlist.push_back(s012f1);

    sub012csep_filterlist.push_back(new Operator("and"));

    SimpleFilter* s012f2 = new SimpleFilter(new Operator("="), new SimpleColumn("tpch.lineitem.l_suppkey"),
                                            new SimpleColumn("tpch.partsupp.ps_suppkey"));
    sub012csep_filterlist.push_back(s012f2);

    sub012csep_filterlist.push_back(new Operator("and"));

    SimpleFilter* s012f3 = new SimpleFilter(new Operator(">="), new SimpleColumn("tpch.lineitem.l_shipdate"),
                                            new ConstantColumn("date ':2'"));
    sub012csep_filterlist.push_back(s012f3);

    sub012csep_filterlist.push_back(new Operator("and"));

    SimpleFilter* s012f4 = new SimpleFilter(new Operator("="), new SimpleColumn("tpch.lineitem.l_shipdate"),
                                            new ConstantColumn("date ':2' + interval '1' year"));
    sub012csep_filterlist.push_back(s012f4);

    sub012csep->filterTokenList(sub012csep_filterlist);

    //   --------------- second inner sub ends here ----------------  x

    // Now resolve the first inner sub_query
    SelectFilter* s01f1 =
        new SelectFilter(new SimpleColumn("tpch.partsupp.ps_suppkey"), new Operator("IN"), sub011csep);

    // Now resolve the second  inner sub_query
    SelectFilter* s01f2 =
        new SelectFilter(new SimpleColumn("tpch.partsupp.ps_availqty"), new Operator(">"), sub012csep);

    sub01csep_filterlist.push_back(s01f1);
    sub01csep_filterlist.push_back(new Operator("and"));
    sub01csep_filterlist.push_back(s01f2);
    sub01csep->filterTokenList(sub01csep_filterlist);

    cout << "I am here 4" << endl;
    //   --------------- first sub ends here ----------------  x
    // Now resolve the outer query
    SelectFilter* f1 =
        new SelectFilter(new SimpleColumn("tpch.supplier.s_suppkey"), new Operator("IN"), sub01csep);
    csep_filterlist.push_back(f1);
    cout << "I am here 5" << endl;

    csep_filterlist.push_back(new Operator("and"));

    SimpleFilter* f2 = new SimpleFilter(new Operator("="), new SimpleColumn("tpch.supplier.s_nationkey"),
                                        new SimpleColumn("tpch.nation.n_nationkey"));
    csep_filterlist.push_back(f2);

    csep_filterlist.push_back(new Operator("and"));

    SimpleFilter* f3 =
        new SimpleFilter(new Operator("="), new SimpleColumn("tpch.nation.n_name"), new ConstantColumn(":3"));
    csep_filterlist.push_back(f3);

    cout << "I am here 6" << endl;
    csep->filterTokenList(csep_filterlist);

    // Build Group By List
    /*
            CalpontSelectExecutionPlan::GroupByColumnList csep_groupbyList;
            SimpleColumn *g1 = new SimpleColumn("tpch.part.p_brand");
            csep_groupbyList.push_back(g1);
            csep->groupByCols(csep_groupbyList);  //Set GroupBy columns
    */

    // Order By List
    cout << "I am here 7" << endl;
    CalpontSelectExecutionPlan::OrderByColumnList csep_orderbyList;
    SimpleColumn* o1 = new SimpleColumn("tpch.supplier.s_name");
    csep_orderbyList.push_back(o1);
    csep->orderByCols(csep_orderbyList);  // Set OrderBy columns
    cout << "I am here 8" << endl;

    // filterList->walk(walkfnString); ??

    // Print the parse tree
    ParseTree* pt = const_cast<ParseTree*>(csep->filters());
    cout << "I am here 9" << endl;
    pt->drawTree("selectExecutionPlan_20.dot");

    cout << "\nCalpont Execution Plan:" << endl;
    cout << *csep << endl;
    cout << " --- end of test 20 ---" << endl;
  }
};

CPPUNIT_TEST_SUITE_REGISTRATION(ExecPlanTest);

#include <cppunit/extensions/TestFactoryRegistry.h>
#include <cppunit/ui/text/TestRunner.h>

int main(int argc, char** argv)
{
  CppUnit::TextUi::TestRunner runner;
  CppUnit::TestFactoryRegistry& registry = CppUnit::TestFactoryRegistry::getRegistry();
  runner.addTest(registry.makeTest());
  bool wasSuccessful = runner.run("", false);
  return (wasSuccessful ? 0 : 1);
}