//=========================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt for details.
//
//  This software is distributed WITHOUT ANY WARRANTY; without even
//  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
//  PURPOSE.  See the above copyright notice for more information.
//=========================================================================

#include "smtk/attribute/Attribute.h"
#include "smtk/attribute/Definition.h"
#include "smtk/attribute/DirectoryItemDefinition.h"
#include "smtk/attribute/DoubleItem.h"
#include "smtk/attribute/DoubleItemDefinition.h"
#include "smtk/attribute/FileItemDefinition.h"
#include "smtk/attribute/GroupItemDefinition.h"
#include "smtk/attribute/IntItem.h"
#include "smtk/attribute/IntItemDefinition.h"
#include "smtk/attribute/RefItemDefinition.h"
#include "smtk/attribute/Resource.h"
#include "smtk/attribute/StringItem.h"
#include "smtk/attribute/StringItemDefinition.h"
#include "smtk/attribute/VoidItemDefinition.h"

#include "smtk/model/EntityTypeBits.h"

#include "smtk/io/AttributeWriter.h"
#include "smtk/io/Logger.h"

#include <iostream>

int main(int argc, char* argv[])
{
  int status = 0;
  {
    if (argc != 2)
    {
      std::cerr << "Usage: " << argv[0] << " filename\n";
      return -1;
    }
    smtk::attribute::ResourcePtr resptr = smtk::attribute::Resource::create();
    smtk::attribute::Resource& resource(*resptr.get());
    std::cout << "Resource Created\n";
    // Lets add some analyses
    smtk::attribute::Analyses& analyses = resptr->analyses();
    std::set<std::string> analysis;
    analysis.insert("Flow");
    analysis.insert("General");
    analysis.insert("Time");
    auto a = analyses.create("CFD Flow");
    a->setLocalCategories(analysis);

    analysis.clear();

    analysis.insert("Flow");
    analysis.insert("Heat");
    analysis.insert("General");
    analysis.insert("Time");
    a = analyses.create("CFD Flow with Heat Transfer");
    a->setLocalCategories(analysis);

    analysis.insert("Constituent");
    analysis.insert("General");
    analysis.insert("Time");
    a = analyses.create("Constituent Transport");
    a->setLocalCategories(analysis);
    analysis.clear();

    // Lets verify that we can't create an analysis with an name
    // that already exists
    a = analyses.create("Constituent Transport");
    if (a != nullptr)
    {
      std::cout << "ERROR - Was able to create an analysis that shares a name with another\n";
      status = -1;
    }

    // Lets create an attribute to represent an expression
    smtk::attribute::DefinitionPtr expDef = resource.createDefinition("ExpDef");
    expDef->setBriefDescription("Sample Expression");
    expDef->setDetailedDescription("Sample Expression for testing\nThere is not much here!");
    smtk::attribute::StringItemDefinitionPtr eitemdef =
      expDef->addItemDefinition<smtk::attribute::StringItemDefinitionPtr>("Expression String");
    smtk::attribute::StringItemDefinitionPtr eitemdef2 =
      expDef->addItemDefinition<smtk::attribute::StringItemDefinition>("Aux String");
    eitemdef->setDefaultValue("sample");

    smtk::attribute::DefinitionPtr base = resource.createDefinition("BaseDef");
    // Lets add some item definitions
    smtk::attribute::IntItemDefinitionPtr iitemdef =
      base->addItemDefinition<smtk::attribute::IntItemDefinitionPtr>("TEMPORAL");
    iitemdef->setLabel("Time");
    iitemdef->addDiscreteValue(0, "Seconds");
    iitemdef->addDiscreteValue(1, "Minutes");
    iitemdef->addDiscreteValue(2, "Hours");
    iitemdef->addDiscreteValue(3, "Days");
    iitemdef->setDefaultDiscreteIndex(0);
    iitemdef->addCategory("Time");
    iitemdef = base->addItemDefinition<smtk::attribute::IntItemDefinitionPtr>("IntItem2");
    iitemdef->setDefaultValue(10);
    iitemdef->addCategory("Heat");

    smtk::attribute::DefinitionPtr def1 = resource.createDefinition("Derived1", "BaseDef");
    def1->setLocalAssociationMask(smtk::model::MODEL_ENTITY); // belongs on model
    // Lets add some item definitions
    smtk::attribute::DoubleItemDefinitionPtr ditemdef =
      def1->addItemDefinition<smtk::attribute::DoubleItemDefinitionPtr>("DoubleItem1");
    // Allow this one to hold an expression
    ditemdef->addCategory("Veg");
    ditemdef->setExpressionDefinition(expDef);
    // Check to make sure we can use expressions
    if (!ditemdef->allowsExpressions())
    {
      std::cout << "ERROR - Item Def does not allow expressions\n";
      status = -1;
    }
    ditemdef = def1->addItemDefinition<smtk::attribute::DoubleItemDefinitionPtr>("DoubleItem2");
    //Lets add some children
    ditemdef->addItemDefinition<smtk::attribute::DoubleItemDefinitionPtr>("Child1");
    ditemdef->addItemDefinition<smtk::attribute::IntItemDefinitionPtr>("Child2");
    ditemdef->addItemDefinition<smtk::attribute::StringItemDefinitionPtr>("Child3");
    ditemdef->addCategory("Constituent");
    ditemdef->addDiscreteValue(0, "A");
    ditemdef->addDiscreteValue(1, "B");
    ditemdef->addDiscreteValue(2, "C");

    ditemdef->addConditionalItem("A", "Child1");
    ditemdef->addConditionalItem("A", "Child3");
    ditemdef->addConditionalItem("B", "Child3");
    ditemdef->addConditionalItem("B", "Child2");
    ditemdef->setDefaultDiscreteIndex(0);

    smtk::attribute::VoidItemDefinitionPtr vdef =
      def1->addItemDefinition<smtk::attribute::VoidItemDefinitionPtr>("VoidItem");
    vdef->setIsOptional(true);
    vdef->setLabel("Option 1");

    smtk::attribute::DefinitionPtr def2 = resource.createDefinition("Derived2", "Derived1");
    def2->setLocalAssociationMask(smtk::model::VOLUME);
    // Lets add some item definitions
    smtk::attribute::StringItemDefinitionPtr sitemdef =
      def2->addItemDefinition<smtk::attribute::StringItemDefinitionPtr>("StringItem1");
    sitemdef->setIsMultiline(true);
    sitemdef->addCategory("Flow");
    sitemdef = def2->addItemDefinition<smtk::attribute::StringItemDefinitionPtr>("StringItem2");
    sitemdef->setDefaultValue("Default");
    sitemdef->addCategory("General");
    smtk::attribute::DirectoryItemDefinitionPtr dirdef =
      def2->addItemDefinition<smtk::attribute::DirectoryItemDefinitionPtr>("DirectoryItem");
    dirdef->setShouldExist(true);
    dirdef->setShouldBeRelative(true);
    smtk::attribute::FileItemDefinitionPtr fdef =
      def2->addItemDefinition<smtk::attribute::FileItemDefinitionPtr>("FileItem");
    fdef->setShouldBeRelative(true);
    smtk::attribute::GroupItemDefinitionPtr gdef1,
      gdef = def2->addItemDefinition<smtk::attribute::GroupItemDefinitionPtr>("GroupItem");
    gdef->addItemDefinition<smtk::attribute::FileItemDefinitionPtr>("File1");
    gdef1 = gdef->addItemDefinition<smtk::attribute::GroupItemDefinitionPtr>("SubGroup");
    sitemdef = gdef1->addItemDefinition<smtk::attribute::StringItemDefinitionPtr>("GroupString");
    sitemdef->setDefaultValue("Something Cool");
    sitemdef->addCategory("General");
    sitemdef->addCategory("Flow");

    // Add in a Attribute definition with a reference to another attribute
    smtk::attribute::DefinitionPtr attrefdef = resource.createDefinition("AttributeReferenceDef");
    smtk::attribute::RefItemDefinitionPtr aritemdef =
      attrefdef->addItemDefinition<smtk::attribute::RefItemDefinitionPtr>("BaseDefItem");
    aritemdef->setNumberOfRequiredValues(1);
    aritemdef->setCommonValueLabel("A reference to another attribute");
    aritemdef->setAttributeDefinition(base);

    // Process Categories
    resource.updateCategories();
    // Lets test creating an attribute by passing in the expression definition explicitly
    smtk::attribute::AttributePtr expAtt = resource.createAttribute("Exp1", expDef);
    smtk::attribute::AttributePtr att = resource.createAttribute("testAtt", "Derived2");
    if (!att)
    {
      std::cout << "ERROR: Attribute testAtt not created\n";
      status = -1;
    }

    // Lets Test out the conditional items
    smtk::attribute::ValueItemPtr vitem =
      smtk::dynamic_pointer_cast<smtk::attribute::ValueItem>(att->find("DoubleItem2"));

    smtk::io::Logger logger;
    if (!vitem)
    {
      smtkErrorMacro(logger, "Error: Can't find DoubleItem2");
    }
    else
    {
      // Should Have 2 children Child1 and Child3 by default
      if (vitem->numberOfActiveChildrenItems() != 2)
      {
        smtkErrorMacro(logger, "Error:DoubleItem2 = A has " << vitem->numberOfActiveChildrenItems()
                                                            << " active children");
      }
      else
      {
        if (vitem->activeChildItem(0)->name() != "Child1")
        {
          smtkErrorMacro(
            logger, "Error:DoubleItem2 = A 0th child is " << vitem->activeChildItem(0)->name());
        }
        if (vitem->activeChildItem(1)->name() != "Child3")
        {
          smtkErrorMacro(
            logger, "Error:DoubleItem2 = A 0th child is " << vitem->activeChildItem(1)->name());
        }
      }
    }
    // Lets Change it to be using "B"
    vitem->setDiscreteIndex(1);
    if (vitem->numberOfActiveChildrenItems() != 2)
    {
      smtkErrorMacro(logger, "Error:DoubleItem2 has " << vitem->numberOfActiveChildrenItems()
                                                      << " active children");
    }
    else
    {
      if (vitem->activeChildItem(0)->name() != "Child3")
      {
        smtkErrorMacro(
          logger, "Error:DoubleItem2 = B 0th child is " << vitem->activeChildItem(0)->name());
      }
      if (vitem->activeChildItem(1)->name() != "Child2")
      {
        smtkErrorMacro(
          logger, "Error:DoubleItem2 = B 0th child is " << vitem->activeChildItem(1)->name());
      }
    }
    // Lets Change it to be using "C"
    vitem->setDiscreteIndex(1);
    if (vitem->numberOfActiveChildrenItems() != 0)
    {
      smtkErrorMacro(logger, "Error:DoubleItem2 = C has " << vitem->numberOfActiveChildrenItems()
                                                          << " active children");
    }

    smtk::attribute::ItemPtr item;

    // Find the expression enabled item
    item = att->item(2);
    vitem = smtk::dynamic_pointer_cast<smtk::attribute::ValueItem>(item);
    smtk::io::AttributeWriter writer;
    if (writer.write(resptr, argv[1], logger))
    {
      std::cerr << "Errors encountered creating Attribute File:\n";
      std::cerr << logger.convertToString();
      status = -1;
    }
    std::cout << "Resource destroyed\n";
  }
  return status;
}
