/* Copyright (c) Oracle Corporation 1996.  All Rights Reserved */
/*****************************************************************************
  NAME
    xc60.vrf - V3 version analysis/product configuration script for the
                  Oracle Express Connection editor.

  DESCRIPTION
    This script checks dependencies and environment settings for the
    installation of the Oracle Express Connection editor.

  MODIFIED    MM/DD/YY   Reason
  pgupta      06/12/98   Created
******************************************************************************/
{
    /***********************************************************************
    Set Installer variables according to the <os.prd> being used.
    ***********************************************************************/

     dir_separator = "\";
    prefix = operating_system;
     {
        {instver_product =       evaluate("%prefix%instver"); } ['UNBOUND_VARIABLE: continue(); ]
        {orainst_product =       evaluate("%prefix%install"); } ['UNBOUND_VARIABLE: continue(); ]
     }
     /************************************/

    /*************************************************************
    Check if Tools Utilities is already installed and up to date.
    Check that the correct version of the Installer is being used.
    *************************************************************/
    reinstall_group         = nls("reinstall_group","Version %%installed_version%% of %%product_label%% has already been installed and is up to date.  Do you want to reinstall it?");
    reinstall_group_help = nls("reinstall_group_help","You selected to install %%product_label%%, which is up to date.  Unless a problem has occurred with %%product_label%%, there is no need to reinstall.  Choose 'No' to skip the reinstallation, or choose 'Yes' if you want to reinstall %%product_label%%.");

    { doit = execute("%installer_home%%dir_separator%%operating_system%.vrf"); }
    [
        'UNBOUND_VARIABLE:
        {
            required_version = product_version(instver_product);
            temp             = explode(required_version, ".");
            required_version = implode(list(first(temp),first(rest(temp)),
                                            first(rest(rest(temp))),
                                            first(rest(rest(rest(temp))))), ".");
            signal('FAILURE, instantiate(nls("instver_too_early1",
                                             "The version of the Installer currently running is %%installer_version%%. The installation you have chosen requires version %%required_version%% or later. Please run version %%required_version%% or later in order to perform this installation.")));
        }
    ]                                                                       /* This FAILURE will cause 3.0.x.x installer to exit gracefully. */

    if((not(doit)) && (member(selected_products, current_product)))
        ui_action(instantiate(halt_installation));

    /***********************************************************************/
    if (doit)
    {
      /****************************************************************
          Display the generic "Welcome to Oracle Developer"
          billboard if not already displayed, and if Developer release
          *****************************************************************/
          if(exists("%installer_home%%dir_separator%d2bb_01.bmp"))
          {
               if(DEVELOPER2000_RELEASE)
               {
                    if(not(DEV2K_BB01))
                    {
                         DEV2K_BB01 = TRUE;
                         ui_graphics("%installer_home%%dir_separator%d2bb_01.bmp");
                    }
               }
          }

        /*************************
         Set Product Name variables
        **************************/
        RSF_PRODUCT = w32rsf80;
        GUI_PRODUCT = w32gui60;
        verify_dependency_list = list(GUI_PRODUCT);
        install_dependency_list = list();
        /*************************/

        /*******************************
         Set the VRF-INS script "ratchet"
        ********************************/
        vrf_ratchet = "6.0.0.0.0";

        /*******************************************
        Create a label with the product, and version
        ********************************************/
        current_version = product_version(current_product);
        version_list    = explode(current_version,".");
        msb_version_list= list(first(version_list),
                                  first(rest(version_list)));

        display_version = implode(msb_version_list,".");
        /*******************************************/
        /*************************
         Set Environment Variables
         *************************/
         rsnapi_home = "%oracle_home%%dir_separator%olap%dir_separator%osn620";
        /********************************************************************
        Calculate total size of installation.......
        *********************************************************************/
        total_sum = 0;

        /******************
        Verify Dependencies
        *******************/
        size_current_dependency = 0;
        while(not(empty(verify_dependency_list)))
        {
            current_dependency = first(verify_dependency_list);
            verify_dependency_list = rest(verify_dependency_list);

            size_current_dependency = verify(current_dependency);
            if(size_current_dependency != 0)
            {
                add(install_dependency_list, current_dependency);
                total_sum = total_sum + size_current_dependency;
            }
        }
        /******************/
        total_sum = total_sum + sum(deinst,dll32,dll32nt);

        return(total_sum);
        /********************************************************************/
    }
    else
    {
        refresh_map_file = FALSE;
        return(0);
    }
}