<%
/*
 * $RCSfile: global.jsp,v $
 * $Revision: 1.4 $
 * $Date: 2001/05/16 16:21:36 $
 */
%>

<%@     page import="java.text.*,
                 com.coolservlets.util.*"
%>

<%@ include file="loginMethods.jsp" %>

<%@ include file="searchMethods.jsp" %>

<%!     // Global variables

        // one month in seconds:
        private static final int ONE_MONTH = 60*60*24*30;
        // Threads per page
        private static final int DEFAULT_THREAD_RANGE = 15;
        private static final int[] threadRanges = { 15, 30, 50, 100 };
        // Messages per page
        private static final int DEFAULT_MESSAGE_RANGE = 15;
        private static final int[] messageRanges = { 5, 15, 30, 50, 100 };
        // Default locale
        private static final Locale defaultLocale = SkinUtils.DEFAULT_LOCALE;
        // Timezones
        private static final String[][] timeZones = getTimeZoneList();
        // Default timezone code
        private static final String defaultTimeZoneCode = SkinUtils.DEFAULT_TIMEZONECODE;
        // Default timezone
        private static final TimeZone defaultTimeZone = TimeZone.getTimeZone(defaultTimeZoneCode);
        // Date Formatter
        private static final DateFormat defaultDateFormatter = SkinUtils.DEFAULT_DATEFORMAT;
        static {
                defaultDateFormatter.setTimeZone(defaultTimeZone);
        }
        // A date format for displaying "dates since" like "user a member since:"
        private static final DateFormat dateSinceFormatter
                 = DateFormat.getDateInstance(DateFormat.MEDIUM,defaultLocale);

        // The following variables indicate what type of popular item list to display
        // (for instance, whether or not to show a list of the popular threads,
        // popular messages, or nothing).
        private static final int NONE = 0;
        private static final int POPULAR_FORUMS = 1;
        private static final int POPULAR_TOPICS = 2;

        // Global methods

    private static Iterator getRecentWatches(ForumFactory forumFactory, User user)
            throws UnauthorizedException
    {
        return forumFactory.getWatchManager().getWatchedForumThreads(
                user, WatchManager.NORMAL_WATCH);
    }
    
    private static ForumMessage getLastPost(ForumFactory forumFactory) {
        ForumMessage lastPost = null;
        // make a result filter, ordered by creation date (decending)
        // and with 1 result
        ResultFilter filter = new ResultFilter();
        filter.setSortField(JiveGlobals.CREATION_DATE);
        filter.setSortOrder(ResultFilter.DESCENDING);
        filter.setStartIndex(0);
        filter.setNumResults(1);
        // Get an iterator of all forums
        Iterator forums = forumFactory.forums();
        while (forums.hasNext()) {
            Forum forum = (Forum)forums.next();
            // Get the last post in this forum
            Iterator messages = forum.messages(filter);
            if (messages.hasNext()) {
                ForumMessage message = (ForumMessage)messages.next();
                if (message != null) {
                    if (lastPost == null) {
                        lastPost = message;
                    }
                    else if (message.getCreationDate().getTime() > lastPost.getCreationDate().getTime()) {
                        lastPost = message;
                    }
                }
            }
        }
        return lastPost;
    }
    
        // Returns the number of threads per forum listing to display for the user
        private static int getThreadRange(HttpServletRequest request,
                        HttpServletResponse response, User user)
        {
                int threadRange = ParamUtils.getIntParameter(request,"range",-1);
                if (threadRange > -1) {
                        return threadRange;
                } else {
                        threadRange = DEFAULT_THREAD_RANGE;
                        if (user != null) {
                                try { 
                                        threadRange = Integer.parseInt(user.getProperty("jive.threadRange"));
                                } catch (Exception e) {}
                        }
                        else {
                                try {
                                        threadRange = Integer.parseInt(SkinUtils.retrieve(request,response,"jive.threadRange").trim());
                                } catch (Exception e) {}
                        }
                        return threadRange;
                }
        }

        // Returns the number of messages to display.
        private static int getMessageRange(HttpServletRequest request,
                        HttpServletResponse response, User user)
        {
                int messageRange = ParamUtils.getIntParameter(request,"range",-1);
                if (messageRange > -1) {
                        return messageRange;
                } else {
                        messageRange = DEFAULT_MESSAGE_RANGE;
                        if (user != null) {
                                try { 
                                        messageRange = Integer.parseInt(user.getProperty("jive.messageRange"));
                                } catch (Exception e) {}
                        }
                        else {
                                try {
                                        messageRange = Integer.parseInt(SkinUtils.retrieve(request,response,"jive.messageRange").trim());
                                } catch (Exception e) {}
                        }
                        return messageRange;
                }
        }

        //
        private static String getSkinURLRoot(HttpServletRequest request) {
                String uri = request.getRequestURI();
                int pos = -1;
                // chop off the jsp page part of the URI
                if ((pos=uri.lastIndexOf("/")) > -1) {
                        uri = uri.substring(0,pos) + "/";
                }
                return uri;
        }

        // 
        private static int getNewMessageCount(Forum forum) {
                long yesterday = CacheTimer.currentTime - (1000*60*60*24);
                ResultFilter filter = new ResultFilter();
                filter.setModifiedDateRangeMin(new Date(yesterday));
                int newMessageCount = forum.getThreadCount(filter);
                return newMessageCount;
        }

        private static final String fontFace = "\"arial,helvetica,sans-serif\"";
        private static final String fontSize = "\"-1\"";

        // Prints out a group of links to paginate through thread listings, ie:
        // "X page(s) [ 1 2 3 4 5 | > ]"
        private static String printForumPaginator(long forumID, int topicCount,
                        int numPages, int start, int range)
        {
                StringBuffer buf = new StringBuffer();

                // Initial font tag
                buf.append("<font face=").append(fontFace).append(" size=").append(fontSize).append(">");

                // "X page(s)":
                buf.append(numPages).append(" page").append((numPages!=1)?"s":"");

                // "["
                buf.append(" [ ");

                // Print out a left arrow if necessary
                if (start > 0) {
                        buf.append("<a href=\"forum.jsp?forum=");
                        buf.append(forumID);
                        buf.append("&start=");
                        buf.append((start-range));
                        buf.append("&range=");
                        buf.append(range);
                        buf.append("\"><acronym title=\"Previous ");
                        buf.append(range);
                        buf.append(" topics\"><img src=\"images/prev.gif\" width=\"8\" height=\"11\" border=\"0\"></acronym></a>");
                        buf.append(" | ");
                }

                // Calculate the starting point & end points (the range of pages to display)
                int currentPage = (start/range)+1;
                int lo = currentPage - 3;
                if (lo <= 0) {
                        lo = 1;
                }
                int hi = currentPage + 5;

                // print out a link to the first page if we're beyond that page
                if (currentPage > 2) {
                        buf.append("<a href=\"forum.jsp?forum=");
                        buf.append(forumID);
                        buf.append("\"><acronym title=\"First page\">first</acronym></a> | ");
                }

                // Print the page numbers before the current page
                while (lo < currentPage) {
                        buf.append("<a href=\"forum.jsp?forum=");
                        buf.append(forumID);
                        buf.append("&start=");
                        buf.append(((lo-1)*range));
                        buf.append("&range=");
                        buf.append(range);
                        buf.append("\"><b>");
                        buf.append(lo);
                        buf.append("</b></a>&nbsp;");
                        lo++;
                }

                // Print the current page
                buf.append("<b><span style=\"background-color:#ffffff;color:#000000;\">");
                buf.append(currentPage);
                buf.append("</span></b>");

                currentPage++;

                // Print page numbers after the current page
                while ((currentPage <= hi) && (currentPage<=numPages)) {
                        buf.append("&nbsp;<a href=\"forum.jsp?forum=");
                        buf.append(forumID);
                        buf.append("&start=");
                        buf.append(((currentPage-1)*range));
                        buf.append("&range=");
                        buf.append(range);
                        buf.append("\"><b>");
                        buf.append(currentPage);
                        buf.append("</b></a>");
                        currentPage++;
                }

                // Show a next arrow if necesary
                if (topicCount > (start+range)) {
                        int numRemaining = (int)(topicCount-(start+range));
                        buf.append(" | ");
                        buf.append("<a href=\"forum.jsp?forum=");
                        buf.append(forumID);
                        buf.append("&start=");
                        buf.append((start+range));
                        buf.append("&range=");
                        buf.append(range);
                        buf.append("\"><acronym title=\"Next ");
                        buf.append(range);
                        buf.append(" topics\"><img src=\"images/next.gif\" width=\"8\" height=\"11\" border=\"0\"></acronym></a>");
                }

                // "]"
                buf.append(" ] </font>");
                return buf.toString();
        }

        //
        private static String[][] getTimeZoneList() {
                String[][] zones = new String[30][2];
                for (int i=0; i<12; i++) {
                        zones[i][0] = "GMT+" + ((i<10)?"0":"") + i;
                        zones[i][1] = "GMT +" + i + " hour" + ((i!=1)?"s":"");
                }
                zones[12][0] = "GMT-12";
                zones[12][1] = "GMT -12 hours";

                zones[13][0] = "GMT-11";
                zones[13][1] = "GMT -11 hours";

                zones[14][0] = "GMT-10";
                zones[14][1] = "GMT -10 hours";

                zones[15][0] = "Pacific/Honolulu";
                zones[15][1] = "GMT -10 hours (HST)";

                zones[16][0] = "GMT-09";
                zones[16][1] = "GMT -9 hours";

                zones[17][0] = "America/Anchorage";
                zones[17][1] = "GMT -9 hours (AKT)";

                zones[18][0] = "GMT-08";
                zones[18][1] = "GMT -8 hours";

                zones[19][0] = "America/Los_Angeles";
                zones[19][1] = "GMT -8 hours (PST)";

                zones[20][0] = "GMT-07";
                zones[20][1] = "GMT -7 hours";

                zones[21][0] = "America/Denver";
                zones[21][1] = "GMT -7 hours (MST)";

                zones[22][0] = "GMT-06";
                zones[22][1] = "GMT -6 hours";

                zones[23][0] = "America/Chicago";
                zones[23][1] = "GMT -6 hours (CST)";

                zones[24][0] = "GMT-05";
                zones[24][1] = "GMT -5 hours";

                zones[25][0] = "America/New_York";
                zones[25][1] = "GMT -5 hours (EST)";

                zones[26][0] = "GMT-04";
                zones[26][1] = "GMT -4 hours";

                zones[27][0] = "GMT-03";
                zones[27][1] = "GMT -3 hours";

                zones[28][0] = "GMT-02";
                zones[28][1] = "GMT -2 hours";

                zones[29][0] = "GMT-01";
                zones[29][1] = "GMT -1 hour";

                return zones;
        }