# UsersReportsBuilder.java

    /*
    ** Module   : UsersReportsBuilder.java
    ** Abstract : UsersReportsBuilder is a PDF report builder to produce User Accounts reports.
    **
    ** Copyright (c) 2017, Golden Code Development Corporation.
    **
    ** -#- -I- --Date-- ----------------Description----------------------
    ** 001 SBI 20170601 Created initial version.
    */
    /*
    ** This program is free software: you can redistribute it and/or modify
    ** it under the terms of the GNU Affero General Public License as
    ** published by the Free Software Foundation, either version 3 of the
    ** License, or (at your option) any later version.
    **
    ** 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 Affero General Public License for more details.
    **
    ** You may find a copy of the GNU Affero GPL version 3 at the following
    ** location: https://www.gnu.org/licenses/agpl-3.0.en.html
    **
    ** Additional terms under GNU Affero GPL version 3 section 7:
    **
    **   Under Section 7 of the GNU Affero GPL version 3, the following additional
    **   terms apply to the works covered under the License.  These additional terms
    **   are non-permissive additional terms allowed under Section 7 of the GNU
    **   Affero GPL version 3 and may not be removed by you.
    **
    **   0. Attribution Requirement.
    **
    **     You must preserve all legal notices or author attributions in the covered
    **     work or Appropriate Legal Notices displayed by works containing the covered
    **     work.  You may not remove from the covered work any author or developer
    **     credit already included within the covered work.
    **
    **   1. No License To Use Trademarks.
    **
    **     This license does not grant any license or rights to use the trademarks
    **     Golden Code, FWD, any Golden Code or FWD logo, or any other trademarks
    **     of Golden Code Development Corporation. You are not authorized to use the
    **     name Golden Code, FWD, or the names of any author or contributor, for
    **     publicity purposes without written authorization.
    **
    **   2. No Misrepresentation of Affiliation.
    **
    **     You may not represent yourself as Golden Code Development Corporation or FWD.
    **
    **     You may not represent yourself for publicity purposes as associated with
    **     Golden Code Development Corporation, FWD, or any author or contributor to
    **     the covered work, without written authorization.
    **
    **   3. No Misrepresentation of Source or Origin.
    **
    **     You may not represent the covered work as solely your work.  All modified
    **     versions of the covered work must be marked in a reasonable way to make it
    **     clear that the modified work is not originating from Golden Code Development
    **     Corporation or FWD.  All modified versions must contain the notices of
    **     attribution required in this license.
    */

    package com.goldencode.p2j.admin.server.reports;

    import java.io.*;
    import java.util.*;
    import java.util.stream.Stream;

    import com.goldencode.p2j.admin.*;
    import com.goldencode.p2j.admin.shared.ReportRequest;
    import com.goldencode.p2j.admin.shared.Reports;
    import com.goldencode.p2j.security.*;

    /**
     * UsersReportsBuilder is a PDF report builder to produce User Accounts reports.
     */
    class UsersReportsBuilder
    extends AccountsReportBuilder<UserAccountData>
    {
       /** the core column count that will be displayed in the extended rows mode */
       private static final int CORE_COLUMN_COUNT = 4;

       /** The number of attribute-value column pairs displayed in the extended rows mode */
       private static final int TUPLE_COUNT = 2;

       /** extended columns */
       private List<ColumnInfo<UserAccountData>> extColumns;

       /**
        * Creates the users reports builder.
        *
        * @param    request
        *           The report request
        */
       public UsersReportsBuilder(ReportRequest request)
       {
          super(Reports.USERS.name(),
                request.getFilter(),
                request.getSelectedRows(),
                request.getReportParameters());
       }

       /**
        * Returns the stream of {@link UserAccountData} objects.
        *
        * @return  see above
        */
       protected Stream<UserAccountData> getDataStream()
       {
          SecurityAdmin sa = AdminServerImpl.getSecurityAdmin();
          AccountReportsExtension ext = sa.getAccountReportsExtension();
          TaggedName[] accounts = AdminServerImpl.listUsers();

          Object[] ctxt = new Object[]
          {
             0,    // record index
             0,    // row index
             null, // UserAccountData for current record
          };

          Stream<UserAccountData> res = Stream.generate(() ->
          {
             UserAccountData ad;
             int recIdx = (int) ctxt[0];
             int rowIdx = (int) ctxt[1];
             if (recIdx == 0 || rowIdx >= numExtendedRows)
             {
                rowIdx = 0;

                TaggedName tn = accounts[recIdx];
                String name = tn.getName();
                UserDef proc = AdminServerImpl.getUser(name);
                Serializable extDef = ext == null ? null : ext.getAccountExtData(name);
                ad = new UserAccountData(tn, proc, extDef);
                ctxt[2] = ad;

                recIdx++;
                ctxt[0] = recIdx;
             }
             else
             {
                ad = (UserAccountData) ctxt[2];
                ad = new UserAccountData(ad.tn, ad.userDef, ad.extDef);
                ad.extRowIndex = rowIdx;
             }

             rowIdx++;
             ctxt[1] = rowIdx;
             return ad;
           });

          int limit = 0;
          if (hasSelectedRows())
          {
             res = res.filter(ad -> getSelectedRows().contains(ad.tn.getName()));
             limit = getSelectedRows().size();
          }
          else
          {
             limit = accounts.length;
          }

          return res.limit(limit * Math.max(numExtendedRows, 1));
       }

       /**
        * Returns report columns.
        *
        * @return  see above
        */
       @Override
       protected List<ColumnInfo<UserAccountData>> getColumns()
       {
          ArrayList<ColumnInfo<UserAccountData>> columns = new ArrayList<>();
          ColumnInfo<UserAccountData> ci = new AccountColumnInfo<>("Account ID", entry -> {
             return entry.tn.getName();
          });
          //ci.setValueAlignment(Alignment.LEFT);
          columns.add(ci);
          columns.add(new AccountColumnInfo<>("Description", entry -> {
             if (entry.userDef == null)
             {
                return "*** possibly deleted ***";
             }

             return entry.tn.getTag();
          }));
          columns.add(new AccountColumnInfo<>("Disabled", entry -> {
             if (entry.userDef == null)
             {
                return "";
             }

             return entry.userDef.enabled ? "" : "yes";
          }));
          columns.add(new AccountColumnInfo<>("Certificate", entry -> {
             if (entry.userDef == null)
             {
                return "";
             }

             return entry.userDef.alias;
          }));
          columns.add(new AccountColumnInfo<>("Status", entry -> {
             if (entry.userDef == null)
             {
                return "";
             }

             return entry.userDef.protect ? "password" : "unprotected";
          }));
          ci = new AccountColumnInfo<>("Groups", entry -> {
             if (entry.userDef == null)
             {
                return "";
             }

             return Arrays.toString(entry.userDef.groups);
          });
          //ci.setValueAlignment(Alignment.RIGHT);
          columns.add(ci);

          SecurityAdmin sa = AdminServerImpl.getSecurityAdmin();
          AccountReportsExtension ext = sa.getAccountReportsExtension();

          if (ext != null)
          {
             extColumns = ext.getAccountReportColumns();
          }

          if (showExtendedColumns && extColumns != null)
          {
             return buildColumns(columns, extColumns, CORE_COLUMN_COUNT, TUPLE_COUNT);
          }
          else
          {
             return columns;
          }
       }
    }