/*

  * Copyright 2011 The Kuali Foundation

  *

  * Licensed under the Educational Community License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may        obtain a copy of the License at

  *

  *         http://www.osedu.org/licenses/ECL-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.kuali.student.contract.model.util;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.Comparator;

 import java.util.List;

 import java.util.Stack;

 import org.kuali.student.contract.model.MessageStructure;

 import org.kuali.student.contract.model.Service;

 import org.kuali.student.contract.model.ServiceContractModel;

 import org.kuali.student.contract.model.XmlType;

 import org.kuali.student.contract.writer.HtmlWriter;

 /**

  *

  * @author nwright

  */

 public class HtmlContractWriter

 {

  private HtmlWriter writer;

  private ServiceContractModel model;

  private ModelFinder finder;

  private String directory;

  public HtmlContractWriter (String directory,

                             ServiceContractModel model)

  {

   this.writer = new HtmlWriter (directory, "index.html",

                                 "Service Contracts Index");

   this.directory = directory;

   this.model = model;

   this.finder = new ModelFinder (this.model);

  }

  public void write ()

  {

   this.writeIndexPage ();

   for (Service service : model.getServices ())

   {

    HtmlContractServiceWriter swriter = new HtmlContractServiceWriter (service,

                                                                       directory,

                                                                       model);

    swriter.write ();

   }

   for (XmlType xmlType : model.getXmlTypes ())

   {

    HtmlContractMessageStructureWriter msWriter =

                                       new HtmlContractMessageStructureWriter (

      xmlType,

      directory,

      model);

    msWriter.write ();

   }

  }

  private static final Comparator<XmlType> XML_TYPE_NAME_COMPARATOR =

                                           new Comparator<XmlType> ()

  {

   @Override

   public int compare (XmlType e1, XmlType e2)

   {

    return e1.getName ().toLowerCase ().compareTo (e2.getName ().toLowerCase ());

   }

  };

  private static final Comparator<Service> SERVICE_NAME_COMPARATOR =

                                           new Comparator<Service> ()

  {

   @Override

   public int compare (Service e1, Service e2)

   {

    return e1.getName ().compareTo (e2.getName ());

   }

  };

  private void writeIndexPage ()

  {

   writer.print ("<a href=\"index.html\">home</a>");

   writer.writeTag ("h1", "Service Contracts");

   writer.indentPrintln (

     "<div class=\"panel\" style=\"background-color: rgb(255, 255, 255); border: 1px solid rgb(204, 204, 204);\">");

   writer.indentPrintln (

     "<div class=\"panelHeader\" style=\"border-bottom: 1px solid rgb(204, 204, 204); background-color: rgb(238, 238, 238);\">");

   writer.indentPrintln ("<b><a name=\"Services\"></a>Services</b>");

   writer.indentPrintln (

     "</div><div class=\"panelContent\" style=\"background-color: rgb(255, 255, 255);\">");

   writer.indentPrintln ("<ul>");

   List<Service> services = new ArrayList (model.getServices ());

   Collections.sort (services, SERVICE_NAME_COMPARATOR);

   for (Service service : services)

   {

    writer.indentPrint ("<li>");

    writer.print ("<a href=\"" + service.getName () + ".html"

                  + "\">" + service.getName () + "</a>");

    writer.print ("</li>");

   }

   writer.indentPrintln ("</ul>");

   writer.indentPrintln ("</div>");

   writer.indentPrintln ("</div>");

   this.writeAlphabeticalList ();

   this.writeMainOrRootList ();

   writer.writeHeaderBodyAndFooterOutToFile ();

  }

  private void writeMainOrRootList ()

  {

   Stack stack = new Stack ();

   List<XmlType> types = this.getMainMessageStructures ();

   writer.indentPrintln (

     "<div class=\"panel\" style=\"background-color: rgb(255, 255, 255); border: 1px solid rgb(204, 204, 204);\">");

   writer.indentPrintln (

     "<div class=\"panelHeader\" style=\"border-bottom: 1px solid rgb(204, 204, 204); background-color: rgb(238, 238, 238);\">");

   writer.indentPrintln (

     "<b><a name=\"MessageStructures\"></a> " + types.size () + " Main (root) Message Structures</b>");

   writer.indentPrintln (

     "</div><div class=\"panelContent\" style=\"background-color: rgb(255, 255, 255);\">");

   writer.indentPrintln ("<ul>");

   for (XmlType type : types)

   {

    this.writeLink (type);

    if ( ! stack.contains (type.getName ()))

    {

     stack.push (type.getName ());

     this.writeSubStructures (type, stack);

     stack.pop ();

    }

   }

   writer.indentPrintln ("</ul>");

   writer.indentPrintln ("</div>");

   writer.indentPrintln ("</div>");

  }

  private String stripListOffEnd (String name)

  {

   if (name.endsWith ("List"))

   {

    return name.substring (0, name.length () - "List".length ());

   }

   return name;

  }

  private void writeSubStructures (XmlType type, Stack stack)

  {

   boolean first = true;

   for (MessageStructure ms : finder.findMessageStructures (type.getName ()))

   {

    XmlType st = finder.findXmlType (this.stripListOffEnd (ms.getType ()));

    if ( ! st.getPrimitive ().equalsIgnoreCase (XmlType.COMPLEX))

    {

     continue;

    }

    if (first)

    {

     first = false;

     writer.indentPrintln ("<ul>");

    }

    this.writeLink (st);

    if ( ! stack.contains (st.getName ()))

    {

     stack.push (st.getName ());

     this.writeSubStructures (st, stack);

     stack.pop ();

    }

   }

   if ( ! first)

   {

    writer.indentPrintln ("</ul>");

   }

  }

  private void writeLink (XmlType type)

  {

   writer.indentPrint ("<li>");

   writer.print ("<a href=\"" + type.getName () + ".html"

                 + "\">" + type.getName () + "</a>");

   writer.print ("</li>");

  }

  private List<XmlType> getMainMessageStructures ()

  {

   List<XmlType> types = new ArrayList (model.getXmlTypes ().size ());

   for (XmlType type : this.getComplexMessageStructures ())

   {

    if (isMainMessageStructure (type))

    {

     types.add (type);

    }

   }

   Collections.sort (types, XML_TYPE_NAME_COMPARATOR);

   return types;

  }

  private boolean isMainMessageStructure (XmlType xmlType)

  {

   if ( ! HtmlContractMessageStructureWriter.calcOtherXmlTypeUsages (model,

                                                                     xmlType).isEmpty ())

   {

    return false;

   }

   return true;

  }

  private List<XmlType> getComplexMessageStructures ()

  {

   List<XmlType> types = new ArrayList (model.getXmlTypes ().size ());

   for (XmlType type : model.getXmlTypes ())

   {

    if (type.getPrimitive () == null)

    {

     throw new NullPointerException (type.getName ()

                                     + " has no primitive flag set");

    }

    if (type.getPrimitive ().equals (XmlType.COMPLEX))

    {

     types.add (type);

    }

   }

   Collections.sort (types, XML_TYPE_NAME_COMPARATOR);

   return types;

  }

  private void writeAlphabeticalList ()

  {

     List<XmlType> types = this.getComplexMessageStructures ();

   writer.indentPrintln (

     "<div class=\"panel\" style=\"background-color: rgb(255, 255, 255); border: 1px solid rgb(204, 204, 204);\">");

   writer.indentPrintln (

     "<div class=\"panelHeader\" style=\"border-bottom: 1px solid rgb(204, 204, 204); background-color: rgb(238, 238, 238);\">");

   writer.indentPrintln (

     "<b><a name=\"MessageStructures\"></a>All " + types.size () + " Message Structures in Alphabetical Order</b>");

   writer.indentPrintln (

     "</div><div class=\"panelContent\" style=\"background-color: rgb(255, 255, 255);\">");

   writer.indentPrintln ("<ul>");

   for (XmlType type : types)

   {

    this.writeLink (type);

   }

   writer.indentPrintln ("</ul>");

   writer.indentPrintln ("</div>");

   writer.indentPrintln ("</div>");

  }

 }