// ==UserScript==
// @name flickrAwardCounter
// @namespace http://www.phazeshift.co.uk/download/
// @description UserScript to count award images in Flickr photo comments
// @version 2.22
// @author phazeshift et al.
// @license MIT
// @include http*://*flickr.com/*photos/*/*
// @include http*://*flickr.com/groups/*/discuss*
// @include http*://*flickr.com/groups/*/pool*
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_xmlhttpRequest
// @grant GM_log
// @grant GM_registerMenuCommand
// @downloadURL none
// ==/UserScript==

/*

Installation
============
First you need a UserScript manager extension for your browser. The state of the art seems to be Tampermonkey these days.
Works with Firefox, Safari and Chrome. Even Edge I'm told. https://www.tampermonkey.net
Then visit the script's new home page at Greasy Fork: https://greasyfork.org/en/scripts/441654-flickrawardcounter
Click the green Install or Update button at the top left of the page. That's it.
You can now visit or reload one of the Flickr pages the script is modifying: photo details, group pool, group discuss.

Release Notes
============
v1.0 ???? Counts the comments on the current photo page using javascript
v2.0 ???? Counts the comments for a photo using the flickr API on Group, Pool and Photo pages
v2.1 ???? Updated to be more compatible with other scripts; no longer removes PoolList class from pool page. Fixed reloading of comments when clicking Show all.
v2.2 ???? Allows multiple images to be specified per award, (separated with ';') and allows dupes for certain people to be ignored (separated with ';')
v2.3 ???? Config dialog allows more awards to be added instead of being off the page.
v2.4 ???? Added Sort & Edit options to config. Added Auto update function.
v2.5 ???? Added option to display number favourites.
v2.6 ???? Fixed clear config option
v2.7 ???? Changed search code to find text that isn't in image tags
v2.8 ???? Added option to hide awards with count = 0
v2.9 ???? Fixed multiple URL config option & counting multiple awards in single comment
Added option to save settings online and tidied config page
Fixed version check code
v2.10 ???? Applied Alesas patch to work with the new flickr layout. Thanks to Alesa for the patch and Tambako for letting me know about the new layout.
Added option to display number of galleries.
v2.11 ???? Fixed an issue that caused script version to be checked on every page load when running under some Greasemonkey emulators that don't support storing settings.
Changed SaveCloudSettings to use a post request to prevent errors with long URLs
Added option to export counter settings to a string
Fixed compatibility issue with 'Flickr Group Pool Admin - Warn + Delete' script
Updated Pool display technique to interfere less with other scripts
v2.12 ???? Added Aleas patch for update check exception handler
Reverted change to pool handling as award counts were unreadable
Fixed detection of image url for pool photos after recent flickr change
v2.13 ???? Fixed detection of image id for individual photos after recent flickr change
v2.14 ???? Fixed count display spacing on comment threads
Fixed counter to work with new pool layout
v2.15 ???? Fixed show all on group discussion page
v2.16 ???? Fixed Flickr Urls to support https. Thanks to Dave_O1
Added support for justified pool layout
Added greasemonkey @grant metadata
v2.17 ???? Fixed SSL support
Fixed single photo view
v2.18 ???? Fixed discussion view
v2.19 ???? Fixed retrieval of photo id
v2.20 ???? Fixed retrieval of photo id again, using location instead of document content.
Added @version and @license GM tags.
MB 2022-03-17.
v2.21 ???? Fixed pool view in 'new' layout as opposed to deprecated 'classic'.
Tweaked photo id extraction regular expression.
Policed global leaks and wayward var declarations.
Added @author tag.
MB 2022-03-24.
v2.22 ???? Fixed discussion view in 'new' (default) layout format.
awards pane in each photo of the 'new' pool layout now scrollable if too many awards to display.
MB 2022-03-28.


Known Issues
============
Group pool and discuss pages in deprecated 'classic' layout cannot display the award links in Safari.
That is not solvable at the script's level. The 'new' default layout should be used anyway.

*/

// Config Stuff

var glblConfigAwards = undefined;
var glblAllPhotos = undefined;
var glblCommentsText = undefined;
var glblLastPhotoId = undefined;
var glblPhotoId = undefined;
var glblMode = undefined;
var glblAllowDupesFrom = undefined;
var glblVersion = '2.22';
var glblServerVersion = glblVersion;
var glblLastCheckedVersion = undefined;
var glblScriptUrl = 'http://www.phazeshift.co.uk/files/flickrawardcounter.user.js';
var glblScriptVersionUrl = 'http://www.phazeshift.co.uk/flickrawardcounterversion.php';
var glblCloudSettingsUrl = 'http://www.phazeshift.co.uk/flickrawardcountersettings.php?';
var glblCloudSettingsId = "";
var glblUpdateCheck = true;
var glblFavourites = false;
var glblGalleries = false;
var glblHideZeroCount = false;
var glblApiKey = 'cf7bfd7c92fcbea46bb7bce79b81ead7';
const SinglePhotoMode = 'Single';
const DiscussMode = 'Group';
const PoolMode = 'Pool';
const ConfigureLink = '<small>( <a href="#flickrawardconfig-configure" class="Plain">configure</a> )</small>';
const AwardCounter = '<small>flickr Award Counter</small> ';
const PoolAwardXPath = "//div[@class='flickraward']";
const AwardInnerXPath = ".//span[@id='flickraward-awardcount-inner']";
const AwardFooterXPath = ".//span[@id='awardcount-awardfooter']";
const AwardToHideXPath = ".//span[@id='flickraward-awardcount-tohide']";

function Save()
{
    GM_setValue('awards', CreateSaveAwardStr());
    if (glblAllowDupesFrom) {
        GM_setValue('awards-allow-dupes-from', glblAllowDupesFrom.join(';').toLowerCase());
    }
    GM_setValue('favourites',glblFavourites);
    GM_setValue('galleries',glblGalleries);
    GM_setValue('hidezerocount',glblHideZeroCount);
    GM_setValue('updatecheck',glblUpdateCheck);
    SaveCloudSettingsId();
}

function SaveCloudSettingsId() {
    GM_setValue('cloudsettingsid',glblCloudSettingsId);
}

function SaveUpdateInfo()
{
    GM_setValue('serverversion',glblServerVersion);
    if (glblLastCheckedVersion) { GM_setValue('lastcheckedversion',glblLastCheckedVersion.getTime().toString()); }
}

function GmSettingsWorking()
{
    GM_setValue('gmsettingstest',glblVersion);
    return (glblVersion == GM_getValue('gmsettingstest',''));
}

function Load()
{
    var buf;
    ParseSaveAwardStr(GM_getValue('awards', ''));
    buf = GM_getValue('awards-allow-dupes-from', '');
    if (buf.length > 0){
        glblAllowDupesFrom = buf.toLowerCase().split(';');
    }
    glblServerVersion = GM_getValue('serverversion',glblServerVersion);
    buf = GM_getValue('lastcheckedversion');
    if (buf && buf != ''){
        glblLastCheckedVersion = new Date();
        glblLastCheckedVersion.setTime(buf);
    }
    glblUpdateCheck = GM_getValue('updatecheck',glblUpdateCheck);
    if (!GmSettingsWorking())
        glblUpdateCheck = false;
    glblFavourites = GM_getValue('favourites',glblFavourites);
    glblGalleries = GM_getValue('galleries',glblGalleries);
    glblHideZeroCount = GM_getValue('hidezerocount',glblHideZeroCount);
    glblCloudSettingsId = GM_getValue('cloudsettingsid',glblCloudSettingsId);
}

function CreateSaveAwardStr()
{
    var buf = "";
    for (var i = 0; i < glblConfigAwards.length; i++) {
        if (glblConfigAwards[i] != undefined)
        {
            buf = buf + escape(glblConfigAwards[i]["Name"]) + ',' + escape(glblConfigAwards[i]["Url"].join(';')) + "|";
        }
    }
    buf = buf.substring(0,buf.length-1);
    return buf;
}

function ParseSaveAwardStr(buf)
{
var Items = [],
    Items2 = [];
    glblConfigAwards = new Array();
    if (buf == undefined) { return; }
    Items = buf.split('|');
    for (var i = 0; i < Items.length; i++) {
        if (Items[i] != '')
        {
            Items2 = Items[i].split(',');
            try {
                AddAward(unescape(Items2[0]),unescape(Items2[1]));
            } catch (ex) {
                alert(ex)
            }
        }
    }
}

function CmpConfigAwards(a,b)
{
    var x = a["Name"].toLowerCase();
    var y = b["Name"].toLowerCase();
    return ((x < y) ? -1 : ((x > y) ? 1 : 0));
}

function Sort()
{
    glblConfigAwards.sort(CmpConfigAwards);
    ConfigDisplayAwards();
}

function SortOne(awardId, up)
{
    var tmpAward,
        newPos,
        i = FindAwardPosByName(awardId);
    if (i == -1) {return; }
    tmpAward = glblConfigAwards[i];
    if (up) { newPos = i - 1; }
    else { newPos = i + 1; }
    if ((newPos < 0) || newPos > glblConfigAwards.length - 1) { return; }
    glblConfigAwards[i] = glblConfigAwards[newPos];
    glblConfigAwards[newPos] = tmpAward;
    ConfigDisplayAwards();
}

function FindAwardByName(awardid) {
    var i = FindAwardPosByName(awardid);
    if (i == -1) return undefined;
    return glblConfigAwards[i];
}

function FindAwardPosByName(awardid){
    var Award = {};
    for (var i=0; i < glblConfigAwards.length; i++) {
        if (glblConfigAwards[i] != undefined)
        {
            Award = glblConfigAwards[i];
            if (Award["Name"] == awardid)
            {
                return i;
            }
        }
    }
    return -1;
}

function ConfigDisplayAwardRow(buf,Award,pos,total)
{
    buf = '<div STYLE="border:thin solid;border-color:#999999;padding:5px;margin:5px;"><table><tr><td width="150">' + ConvertTags(Award["Name"]) + '</td><td width="480">' + ConvertTags(Award["Url"].join(';')) + '</td>';
    buf += '<td width="30"><a href="#flickrawardconfig-edit-'+escape(Award["Name"])+'" class="AwardCounterButton">Edit</a></td>';
    buf += '<td width="30"><a href="#flickrawardconfig-remove-'+escape(Award["Name"])+'" class="AwardCounterButton">Remove</a></td>';
    buf += '<td width="15">';
    if (pos != 0) buf += '<a href="#flickrawardconfig-sortup-'+escape(Award["Name"])+'" class="AwardCounterButtonSmall">/\\</a>';
    buf += '</td><td width="15">';
    if (pos != total) buf += '<a href="#flickrawardconfig-sortdown-'+escape(Award["Name"])+'" class="AwardCounterButtonSmall">\\/</a>';
    buf += '</td></tr></table></div>';
    return buf;
}

function ConfigDisplayAwards()
{
    var varElement = document.getElementById("AwardCounterVarList"),
        buf = '',
        i,
        Award,
        awardAdded = false;
    for (i=0; i < glblConfigAwards.length; i++) {
        if (glblConfigAwards[i]) {
            Award = glblConfigAwards[i];
            buf += ConfigDisplayAwardRow(buf,Award,i,glblConfigAwards.length-1);
            awardAdded = true;
        }
    }
    buf += '';
    if (!awardAdded)
    {
        buf = 'None defined';
    }
    // Replace html with new stuff
    varElement.innerHTML = buf;
}

function DeleteElement(elementname)
{
    var varElement = document.getElementById(elementname);
    if (varElement) {
        varElement.parentNode.removeChild(varElement);
    }
}

function SafeSetElementValue(elename, elevalue){
    var varElement = document.getElementById(elename);
    if (varElement) {
        varElement.value = elevalue;
    }
}


function trim(stringToTrim) {
    return stringToTrim.replace(/^\s+|\s+$/g,"");
}

function TrimArray(arr){
    for (var i = 0; i<arr.length; i++) {
        arr[i] = trim(arr[i]);
    }
    return arr;
}

function CheckString(Value){
    if (Value.indexOf('|') > -1) return false;
    if (Value.indexOf(',') > -1) return false;
    return true;
}

function AddAward(Name, Url)
{
    var newAward = true;
    if (!Name) {return};
    if (!Url) {return};
    Name = RemoveTags(Name);
    var Award = FindAwardByName(Name);
    if (!CheckString(Name)) {
        throw('Name contains a \'|\' or a \',\' which isn\'t valid');
    }
    if (!CheckString(Url)) {
        throw('Url contains a \'|\' or a \',\' which isn\'t valid');
    }
    if (Award != undefined) {
        newAward = false;
    }
    if (newAward)
    {
        Award = {"Name" : "", "Url" : ""};
    }
    Award["Name"] = Name;
    Award["Url"] = TrimArray(Url.split(';'));
    if (newAward)
    {
        glblConfigAwards[glblConfigAwards.length] = Award;
    }
}

function EditAward(Name) {
    var Award = FindAwardByName(Name);
    if (Award == undefined) return;
    document.getElementById("AwardName").value = Award["Name"];
    document.getElementById("AwardUrl").value = Award["Url"].join(';');
}

function RemoveAward(Name)
{
    var i = FindAwardPosByName(Name);
    if (i != -1) {
        glblConfigAwards[i] = undefined;
    }
    ConfigDisplayAwards();
}

function NewerVersion(serverVersion, currentVersion){
    serverVersion = serverVersion.split(".");
    currentVersion = currentVersion.split(".");
    var i;
    for (i=0;i<serverVersion.length;i++) {
        if (parseInt(serverVersion[i]) > parseInt(currentVersion[i])) return true;
    }
    return false;
}

function UpdateHTML()
{
    if (glblUpdateCheck) {
        var buf = '<small> Update status: ';
        if (NewerVersion(glblServerVersion,glblVersion)) {
            buf += ' <a href="' + glblScriptUrl + '">New version '+ glblServerVersion +'</a> ';
        } else buf += 'None available ';
        if (glblLastCheckedVersion) buf += ' (Checked: '+ glblLastCheckedVersion.toLocaleDateString() + ' ' + glblLastCheckedVersion.toLocaleTimeString() +')';
        buf += '</small>';
        return buf;
    }
    return '';
}

function CreateConfigPage()
{
    var buf = "";
    buf += '<div STYLE="position:absolute;z-index:10000; font-family: Arial; top: ';
    buf += document.body.scrollTop + 50;
    buf += 'px; font-size: 12px; left: ';
    buf += document.body.scrollLeft + 40;
    buf += 'px; text-align: left; width: 800px; background-color:#EEEEEE; color:black; border:thin solid; padding: 20px;" id="flickrawardconfig-main">';
    buf += '<span><p><h3>flickr Award Counter</h3></p><span>';
    buf += '<p><small>(v'+ glblVersion +')</small> <small>Copyright 2007-2022 <a href="http://www.phazeshift.co.uk/" class="Plain">Phazeshift</a> et al. Re-released under <a href="https://opensource.org/licenses/MIT" target="_blank">MIT License</a>. </small><br/>';
    buf += UpdateHTML();
    buf += '</p>';
    buf += '<p>This is a small GreaseMonkey script to count the number of awards given to photos in groups on flickr. It will count any number of different awards given by users. ';
    buf += 'It will ignore duplicate awards of the same type from a user. To start, just add a name for the award below and paste the location of the image file for the award, click Add, then click Save.</p>';
    buf += '<div STYLE="border:thin solid;border-color:#999999;padding:5px;margin:5px;"><b>Existing Items</b><br/>';
    buf += '<div style="width: 780px; padding: 5px;" id="AwardCounterVarList"></div>';
    buf += '<div style="width: 750px; height: 20px; padding: 5px;"><div style="float: right; right: 20px;">';
    buf += '<a href="#flickrawardconfig-sort" class="AwardCounterButton">Sort</a> ';
    buf += '<a href="#flickrawardconfig-clear" class="AwardCounterButton">Remove All</a></div></div>';
    buf += '<div style="width: 750px; padding: 5px;"><table><tr><td><b>Award Name</b></td><td><b>Award Image Url</b></td><td></td></tr>';
    buf += '<tr><td><input type="text" size="30" id="AwardName" name="AwardName"/></td>';
    buf += '<td><input type="text" size="80" id="AwardUrl" name="AwardUrl"/></td>';
    buf += '<td><a href="#flickrawardconfig-add" class="AwardCounterButton">Add</a></td></tr>';
    buf += '<tr><td colspan="2">';
    buf += "<small>You can enter multiple images per award, Separate each item with ';'. Don't include spaces before or after items.</small></td></tr></table></div></div>";
    buf += '<div STYLE="border:thin solid;border-color:#999999;padding:5px;margin:5px;"><table><tr><td><b>Allow Duplicates From </b>';
    buf += '<input type="text" size="80" id="AwardAllowDupesFrom"/></td></tr>';
    buf += '<tr><td><small>You can specify a list of users to allow duplicate awards on the same photo for. ';
    buf += "Separate each item with ';'. Don't include spaces before or after items.</small></td></tr></table></div>";
    buf += '<div STYLE="border:thin solid;border-color:#999999;padding:5px;margin:5px;"><table><tr><td><b>Update Check</b> <input type="checkbox" ';
    if (glblUpdateCheck) buf += ' checked="checked" ';
    buf += 'id="AwardUpdatesEnabled"/></td></tr>';
    buf += '<tr><td><small>This option will notify you if a new version of flickr Award Counter is released. ';
    buf += ' It will check with phazeshift.co.uk once a week for a new version. The current status is displayed at the top of this window when it is enabled.</small></td></tr></table></div>';
    buf += '<div STYLE="border:thin solid;border-color:#999999;padding:5px;margin:5px;"><table><tr><td><b>Favourites</b> <input type="checkbox" ';
    if (glblFavourites) buf += ' checked="checked" ';
    buf += 'id="AwardFavouritesEnabled"/></td></tr>';
    buf += '<tr><td><small>This option will show the number of users that have added a picture as a favourite. This option is a little slower, as it requires a second call to flickr.</small></td></tr></table></div> ';
    buf += '<div STYLE="border:thin solid;border-color:#999999;padding:5px;margin:5px;"><table><tr><td><b>Galleries</b> <input type="checkbox" ';
    if (glblGalleries) buf += ' checked="checked" ';
    buf += 'id="AwardGalleriesEnabled"/></td></tr>';
    buf += '<tr><td><small>This option will show the number of galleries a picture has been added to. This option is a little slower, as it requires a second call to flickr.</small></td></tr></table></div> ';
    buf += '<div STYLE="border:thin solid;border-color:#999999;padding:5px;margin:5px;"><table><tr><td><b>Hide zero count</b> <input type="checkbox" ';
    if (glblHideZeroCount) buf += ' checked="checked" ';
    buf += 'id="AwardHideZeroCountEnabled"/></td><td><small>This option will hide awards with a count of zero.</small></td></tr></table></div> ';

    buf += '<div STYLE="border:thin solid;border-color:#999999;padding:5px;margin:5px;"><table><tr><td><b>Cloud settings</b>';
    buf += ' Id: <input type="text" size="30" id="AwardCloudSettingsId" name="AwardCloudSettingsId" value="' + glblCloudSettingsId + '"/>';
    buf += '<a href="#flickrawardconfig-loadcloudsettings" class="AwardCounterButton">Load</a> ';
    buf += '<a href="#flickrawardconfig-savecloudsettings" class="AwardCounterButton">Save</a></td></tr>';
    buf += '<tr><td><small>This option will allow you to save and restore your awards from the web. To save your settings, leave the id box blank and click save. ';
    buf += 'Make a note of your settings ID when the save is completed. To load your settings, enter your settings ID and click load. these settings are ';
    buf += 'not private or encrypted and can be accessed from any machine with your ID.</small></td></tr><tr><td><b>Export settings</b>';
    buf += ' Settings: <input type="text" size="30" id="ExportSettings" name="ExportSettings" value=""/>';
    buf += '<a href="#flickrawardconfig-exportsettings" class="AwardCounterButton">Export</a> ';
    buf += '<a href="#flickrawardconfig-importsettings" class="AwardCounterButton">Import</a></td></tr>';
    buf += '<tr><td><small>This option will allow you to save and restore your awards as a string that can be copied to a text file.'
    buf += '</small></td></tr></table></div>';

    buf += '<div style="width: 750px; height: 20px; padding: 5px;"><div style="float: right; right: 20px;">';
    buf += '<a href="#flickrawardconfig-save" class="AwardCounterButton">Save</a> ';
    buf += '<a href="#flickrawardconfig-cancel" class="AwardCounterButton">Cancel</a>';
    buf += '</div></div>';
    buf += '</div>';
    var newDiv = document.createElement('div');
    newDiv.setAttribute('id','flickrawardconfig-container');
    newDiv.innerHTML = buf;
    document.body.insertBefore(newDiv, document.body.firstChild);
}

// ===================================================================
// Handle Events

function EventAdd()
{
    try {
        var AwardName = document.getElementById("AwardName").value;
        var AwardUrl = document.getElementById("AwardUrl").value;
        AddAward(AwardName,AwardUrl);
        document.getElementById("AwardName").value = '';
        document.getElementById("AwardUrl").value = '';
        ConfigDisplayAwards();
    } catch (ex) {
        alert(ex);
    }
}

function EventCancel()
{
    Load();
    DeleteElement("flickrawardconfig-container");
}

function EventExportSettings()
{
    document.getElementById("ExportSettings").value = CreateSaveAwardStr();
}

function EventImportSettings()
{
    ParseSaveAwardStr(document.getElementById("ExportSettings").value);
    ConfigDisplayAwards();
}

function EventSaveCloudSettings()
{
    glblCloudSettingsId = document.getElementById("AwardCloudSettingsId").value;
    SaveCloudSettingsId();
    Save();
    SaveCloudSettings();
}

function EventLoadCloudSettings()
{
    glblCloudSettingsId = document.getElementById("AwardCloudSettingsId").value;
    SaveCloudSettingsId();
    LoadCloudSettings();
}

function EventSave()
{
    var buf = document.getElementById("AwardAllowDupesFrom").value;
    if (buf.length > 0) {
        glblAllowDupesFrom = TrimArray(buf.toLowerCase().split(';'));
    }
    glblUpdateCheck = document.getElementById("AwardUpdatesEnabled").checked;
    glblFavourites = document.getElementById("AwardFavouritesEnabled").checked;
    glblGalleries = document.getElementById("AwardGalleriesEnabled").checked;
    glblHideZeroCount = document.getElementById("AwardHideZeroCountEnabled").checked;
    glblCloudSettingsId = document.getElementById("AwardCloudSettingsId").value;
    Save();
    EventCancel();
    GetAwardCounts();
}

function EventSortAll()
{
    Sort();
}

function GetIdFromClicked(clickedOn,eventType){
    var idstart = clickedOn.indexOf(eventType) + eventType.length + 1;
    var awardid = clickedOn.substring(idstart,255);
    return unescape(awardid);
}

function EventRemove(clickedOn)
{
    var awardid = GetIdFromClicked(clickedOn,'remove');
    RemoveAward(awardid);
}

function EventEdit(clickedOn)
{
    var awardid = GetIdFromClicked(clickedOn,'edit');
    EditAward(awardid);
}

function EventSortOne(clickedOn,up)
{
    var awardid;
    if (up) {
        awardid = GetIdFromClicked(clickedOn,'-sortup');
    } else {
        awardid = GetIdFromClicked(clickedOn,'-sortdown');
    }
    SortOne(awardid,up);
}

function EventCountShow(clickedOn)
{
    var photoid = GetIdFromClicked(clickedOn, 'countshow'),
        theElement = GetDisplayElement(photoid);

    theElement = FindFirstElement(theElement, AwardInnerXPath);
    theElement.innerHTML = 'Retrieving comments, please wait...';
    GetCommentsForPhotoId(photoid);
}

function EventCountAllShow() {
    glblAllPhotos = [];

    var PhotoDetails,
        theElement,
        PhotoId,
        allPhotoElements = document.evaluate(
            PoolAwardXPath,
            document,
            null,
            XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
            null);

    for (var i = 0; i < allPhotoElements.snapshotLength; i++) {
        theElement = allPhotoElements.snapshotItem(i);
        PhotoId = theElement.id.substring(theElement.id.lastIndexOf('-')+1,255);
        PhotoDetails = {};
        PhotoDetails.PhotoId = PhotoId;
        PhotoDetails.Done = false;
        glblAllPhotos[i] = PhotoDetails;
    }

    theElement = document.getElementById('flickraward-awardcountall');

    if (theElement) {
        theElement.innerHTML = '<small>Retrieving comments, please wait...</small>';
    }

    DisplayNextPhotoDetails();
}

function EventCountHideAll()
{
    ToggleAll(false)
}

function ToggleAll(Visible)
{
    var theElement,
        PhotoId;
    var allPhotoElements = document.evaluate(
        PoolAwardXPath,
        document,
        null,
        XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
        null);
    for (var i = 0; i < allPhotoElements.snapshotLength; i++) {
        theElement = allPhotoElements.snapshotItem(i);
        PhotoId = theElement.id.substring(theElement.id.lastIndexOf('-')+1,255);
        ToggleDisplayAwards(PhotoId,Visible);
    }
    ToggleShowHideAll(Visible);
}

function EventCountReshowAll()
{
    ToggleAll(true);
}

function EventClear()
{
    var Ok = confirm("Do you really want to delete the awards you have set up??");
    if (!Ok) { return; }
    GM_setValue('awards', '');
    GM_setValue('awards-allow-dupes-from', '');
    GM_setValue('lastcheckedversion', '');
    Load();
    ConfigDisplayAwards();
}

function EventCountPositionAndShow(clickedOn)
{
    var PhotoId = GetIdFromClicked(clickedOn, 'countpositionandshow'),
        theElement = GetDisplayElement(PhotoId);
    theElement = FindFirstElement(theElement,AwardInnerXPath);
    theElement.innerHTML = 'Retrieving comments, please wait...';
    ToggleDisplayAwards(PhotoId, true);
    GetCommentsForPhotoId(PhotoId);
}

function EventCountHide(clickedOn)
{
    clickedOn = unescape(clickedOn);
    var idstart = clickedOn.indexOf('counthide') + 10;
    var PhotoId = clickedOn.substring(idstart,255);
    ToggleDisplayAwards(PhotoId, false);
}

function EventCountReshow(clickedOn)
{
    clickedOn = unescape(clickedOn);
    var idstart = clickedOn.indexOf('countreshow') + 12;
    var PhotoId = clickedOn.substring(idstart,255);
    ToggleDisplayAwards(PhotoId,true);
}

function EventConfigPage()
{
    // Do our config page stuff
    CreateConfigPage();
    if (glblConfigAwards == undefined) {
        Load();
    }
    ConfigDisplayAwards();
    if (glblAllowDupesFrom) {
        var varElement = document.getElementById("AwardAllowDupesFrom");
        varElement.value = glblAllowDupesFrom.join(';');
    }
}

// ===================================================================
// Configure Event Handler

function EndsWith(str, substr){
    return (str.lastIndexOf(substr) == str.length - substr.length);
}

function ConfigureEvents()
{
    document.addEventListener('click', function(event) {
        // event.target is the element that was clicked
        var clickedOn = event.target.toString();
        if (clickedOn.indexOf('#flickrawardconfig-') > -1)
        {
            if (EndsWith(clickedOn,'save'))
            {
                EventSave();
            }
            if (EndsWith(clickedOn,'sort'))
            {
                EventSortAll();
            }
            if (EndsWith(clickedOn,'cancel'))
            {
                EventCancel();
            }
            if (EndsWith(clickedOn,'add'))
            {
                EventAdd();
            }
            if (EndsWith(clickedOn,'exportsettings'))
            {
                EventExportSettings();
            }
            if (EndsWith(clickedOn,'importsettings'))
            {
                EventImportSettings();
            }
            if (EndsWith(clickedOn,'savecloudsettings'))
            {
                EventSaveCloudSettings();
            }
            if (EndsWith(clickedOn,'loadcloudsettings'))
            {
                EventLoadCloudSettings();
            }
            if (EndsWith(clickedOn,'configure'))
            {
                EventConfigPage();
            }
            if (clickedOn.indexOf('-remove-') > 0)
            {
                EventRemove(clickedOn);
            }
            if (clickedOn.indexOf('-sortup-') > 0)
            {
                EventSortOne(clickedOn,true);
            }
            if (clickedOn.indexOf('-sortdown-') > 0)
            {
                EventSortOne(clickedOn,false);
            }
            if (clickedOn.indexOf('-edit-') > 0)
            {
                EventEdit(clickedOn);
            }
            if (clickedOn.indexOf('countshow') > 0)
            {
                EventCountShow(clickedOn);
            }
            if (clickedOn.indexOf('countallhide') > 0)
            {
                EventCountHideAll(clickedOn);
            }
            if (clickedOn.indexOf('countallreshow') > 0)
            {
                EventCountReshowAll(clickedOn);
            }
            if (clickedOn.indexOf('counthide') > 0)
            {
                EventCountHide(clickedOn);
            }
            if (clickedOn.indexOf('countpositionandshow') > 0)
            {
                EventCountPositionAndShow(clickedOn);
            }
            if (clickedOn.indexOf('countreshow') > 0)
            {
                EventCountReshow(clickedOn);
            }
            if (clickedOn.indexOf('countallshow') > 0)
            {
                EventCountAllShow();
            }
            if (clickedOn.indexOf('clear') > 0)
            {
                EventClear();
            }
            // we handled the event so stop propagation
            event.stopPropagation();
            event.preventDefault();
        }
    }, true);
}

// ===================================================================
// Search Stuff

function CallFlickrMethod(method, params, onLoadFunction)
{
    params['format'] = 'json';
    params['nojsoncallback'] = 1;
    params['method'] = method;
    var url = "https://api.flickr.com/services/rest?";
    CallMethod(url,params,onLoadFunction);
}

function CallMethod(url,params,onLoadFunction)
{
    for(var key in params){
        url += "&" + key + "=" + params[key];
    }
    GM_xmlhttpRequest({
        method:"GET",
        url:url,
        headers:{
            "User-Agent":"monkeyagent",
            "Accept":"text/monkey,text/xml",
        },
        onload:onLoadFunction
    });
}

function CallPostMethod(url,params,onLoadFunction)
{
    var data = "";
    for(var key in params){
        data += key + "=" + params[key] + "&";
    }
    GM_xmlhttpRequest({
        method:"POST",
        url:url,
        data:data,
        headers:{
            "User-Agent":"monkeyagent",
            "Accept":"text/monkey,text/xml",
            "Content-Type": "application/x-www-form-urlencoded"
        },
        onload:onLoadFunction
    });
}

function GetCommentsForPhotoId(PhotoId) {

    // Have we already cached the comments?
    if (glblLastPhotoId != PhotoId || glblCommentsText == undefined) {
        var params = {},
            onLoadFunction = function(details) {
                ProcessComments(details.responseText);
            };

        glblPhotoId = PhotoId;
        params.photo_id = PhotoId;
        params.api_key = glblApiKey;
        CallFlickrMethod('flickr.photos.comments.getList', params, onLoadFunction);
    } else {
        ProcessComments(glblCommentsText);
    }
}

function GetFavouritesForPhotoId(PhotoId)
{
    var params = new Array();
    params['photo_id'] = PhotoId;
    params['per_page'] = 1;
    params['api_key'] = glblApiKey;
    var onLoadFunction = function(details) {
        ProcessFavourites(details.responseText);
    }
    CallFlickrMethod('flickr.photos.getFavorites', params, onLoadFunction);
}

function GetGalleriesForPhotoId(PhotoId)
{
    var params = new Array();
    params['photo_id'] = PhotoId;
    params['per_page'] = 1;
    params['api_key'] = glblApiKey;
    var onLoadFunction = function(details) {
        ProcessGalleries(details.responseText,PhotoId);
    }
    CallFlickrMethod('flickr.galleries.getListForPhoto', params, onLoadFunction);
}


function CountAwardsPresentInText(intext, awardtextarr)
{
    var result = 0;
    for (var i = 0; i < awardtextarr.length;i++) {
        // Todo : Maybe make this 2.7 change optional in future
        // if (intext.toLowerCase().indexOf('src="' + awardtextarr[i].toLowerCase() + '"') > 0)
        if (intext.toLowerCase().indexOf(awardtextarr[i].toLowerCase()) > -1)
        { result++; }
    }
    return result;
}

function inArray(arr, str)
{
    for (var i=0; i<arr.length; i++)
    {
        if (arr[i] == str)
        { return true; }
    }
    return false;
}

function AllowDupes(who){
    if (!glblAllowDupesFrom) return false;
    return inArray(glblAllowDupesFrom,who.toLowerCase())
}

function ProcessFavourites(favouriteText) {
    var photoId = 0,
        obj = eval('(' + favouriteText + ')');
    if (obj.stat == 'fail') { return; }
    photoId = obj.photo.id;
    DisplayFavourites(obj.photo.total,photoId);
}

function ProcessGalleries(galleryText,photoId) {
    var obj = eval('(' + galleryText + ')');
    if (obj.stat == 'fail') { return; }
    DisplayGalleries(obj.galleries.total,photoId);
}


function ProcessComments(commentsText)
{
    // initialize everything
    var glblCommentsText = commentsText,
        Award,
        awardCount,
        who,
        whoAwarded,
        CommentCount = 0,
        PhotoId = 0,
        dupesAllowed = false,
        WhoAwardedAwards = [],
        AwardCounts = [],
        comments = [],
        comment = {},
        obj = eval('(' + commentsText + ')');

    for (var i = 0; i < glblConfigAwards.length; i++) {
        WhoAwardedAwards[i] = new Array();
        AwardCounts[i] = 0;
    }

    if (obj.stat == 'fail') {

        if (obj.code == 1) {
            DisplayError(glblPhotoId, obj.message + " (maybe it's private and I can't grab the comments?)");
        } else {
            DisplayError(glblPhotoId,'Code: ' + obj.code + ' Message: ' + obj.message);
        }
    } else {
        PhotoId = obj.comments.photo_id;
        glblLastPhotoId = PhotoId;
        comments = obj.comments.comment;

        if (comments) {
            CommentCount = comments.length;

            for(i = 0; i < comments.length; i++) {
                comment = comments[i];
                who = comment.authorname;

                for (var i2=0;i2<glblConfigAwards.length;i2++) {
                    Award = glblConfigAwards[i2];

                    if (Award == undefined) {
                        continue;
                    }

                    awardCount = CountAwardsPresentInText(comment._content,Award.Url);

                    if (awardCount > 0) {
                        whoAwarded = WhoAwardedAwards[i2];
                        dupesAllowed = AllowDupes(who);

                        if (inArray(whoAwarded,who) && !dupesAllowed) {
                            continue;
                        }

                        if (!dupesAllowed) {
                            awardCount = 1;
                        }

                        AwardCounts[i2] = AwardCounts[i2] + awardCount;
                        whoAwarded[whoAwarded.length] = who;
                    }
                }
            }
        }

        DisplayAwards(AwardCounts, CommentCount, PhotoId);

        if (glblFavourites) {
            GetFavouritesForPhotoId(PhotoId);
        }

        if (glblGalleries) {
            GetGalleriesForPhotoId(PhotoId);
        }
    }

    if (glblAllPhotos) {
        DisplayNextPhotoDetails();
    }
}

function DisplayNextPhotoDetails() {

    if (!glblAllPhotos) {
        return;
    }

    var theElement,
        AwardDivOuter,
        AwardDivInner;

    for (var i = 0; i < glblAllPhotos.length; i++) {

        if (!glblAllPhotos[i].Done) {
            glblAllPhotos[i].Done = true;
            AwardDivOuter = GetDisplayElement(glblAllPhotos[i].PhotoId);

            if (AwardDivOuter) {
                AwardDivInner = FindFirstElement(AwardDivOuter,AwardInnerXPath);

                if (AwardDivInner.innerHTML == '') {
                    GetCommentsForPhotoId(glblAllPhotos[i].PhotoId);
                } else {
                    ToggleDisplayAwards(glblAllPhotos[i].PhotoId, true);
                }
            }
        }
    }

    glblAllPhotos = undefined;
    theElement = document.getElementById('flickraward-awardcountall');

    if (theElement) {
        theElement.innerHTML = AwardCounter + ' ' + ConfigureLink + ' <span id="flickaward-showhideall"></span>';
        ToggleShowHideAll(true);
    }
}

function ToggleShowHideAll(Visible) {
    var theElement = document.getElementById('flickaward-showhideall');

    if (theElement) {

        if (Visible) {
            theElement.innerHTML = '<small>( <a href="#flickrawardconfig-countallhide" class="Plain">hide all awards</a> )</small>';
        } else {
            theElement.innerHTML = '<small>( <a href="#flickrawardconfig-countallreshow" class="Plain">show all awards</a> )</small>';
        }
    }
}

function GetAwardCounts() {
    var PhotoId = GetPhotoId();
    GetCommentsForPhotoId(PhotoId);
}

function GetMatchingElementsFromDom(xpath) {
    return document.evaluate(
        xpath,
        document,
        null,
        XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
        null);
}

function GetPhotoId() {
    var Id = '',
        thisElement;

    //<link id="image-src" href="http://farm8.staticflickr.com/7207/7122222123_e75d17f0f0_m.jpg" rel="image_src">
    var allPhotoUrls = GetMatchingElementsFromDom(".//link[@id='image-src']/@href");

    if (allPhotoUrls.snapshotLength === 0) { // old layout
        allPhotoUrls = GetMatchingElementsFromDom(".//div[@class='photoImgDiv']/img/@src");
    }

    if (allPhotoUrls.snapshotLength === 0) { // new layout
        allPhotoUrls = GetMatchingElementsFromDom(".//div[@class='photo-div']/img/@src");
    }

    if (allPhotoUrls.snapshotLength === 0) { // new layout 29/06/2014
        allPhotoUrls = GetMatchingElementsFromDom(".//meta[@name='og:image']/@content");
    }

    if (allPhotoUrls.snapshotLength === 0) { // new layout 22/04/2015
        allPhotoUrls = GetMatchingElementsFromDom(".//img[@class='low-res-photo']/@src");
    }

    for (var i = 0; i < allPhotoUrls.snapshotLength; i++) {
        thisElement = allPhotoUrls.snapshotItem(i);

        if (thisElement.value) {
            Id = GetImageId(thisElement.value);
            break;
        }
    }

    if (!Id) { // new layout 16/03/2022, try using location instead of document
        // eg. https://www.flickr.com/photos/marcbarrot/51941641266/in/dateposted-public/
        Id = document.location.href.replace(/.*\/(\d+)\/.*/, "$1");

        if (Id == document.location.href) {
            // eg. https://www.flickr.com/photos/marcbarrot/51941641266
            Id = document.location.href.replace(/.*\/(\d+)$/, "$1");
        }

        Id = (Id == document.location.href) ? '' : Id;// for consistency, return empty if cannot locate photo id
   }

    return Id;
}

function CreateAwardPane(pane, insertAfter)
{
    if (pane) {
        var newElement = document.createElement('p');
        newElement.setAttribute('id','flickraward-awardcount');
        var buf = '<p><h3>Awards</h3></p><p><span id="flickraward-awardcount-inner" class="AwardCount">Retrieving comments, please wait...</span><br/>' + AwardCounter + ConfigureLink + '</p>';
        newElement.innerHTML = buf;
        if (insertAfter)
            pane.parentNode.insertBefore(newElement, pane.nextSibling);
        else pane.parentNode.insertBefore(newElement, pane);
    }
}

function GetDisplayElement(PhotoId) {

    if (glblMode == SinglePhotoMode) {
        return document.getElementById('flickraward-awardcount');
    } else {
        var buf = 'flickraward-awardcount-' + PhotoId;
        return document.getElementById(buf);
    }
}

function DisplayError(PhotoId, errorstr)
{
    var AwardDivOuter = GetDisplayElement(PhotoId);
    if (AwardDivOuter) {
        var AwardDivInner = FindFirstElement(AwardDivOuter,AwardInnerXPath);
        AwardDivInner.innerHTML = 'Error: ' + errorstr;
        if (glblMode != SinglePhotoMode)
        {
            ToggleDisplayAwards(PhotoId,true);
        }
    }
}

function ToggleDisplayAwards(PhotoId, Visible) {

    var Footer,
        buf = '',
        AwardDivToHide,
        AwardDivOuter = GetDisplayElement(PhotoId);

    if (AwardDivOuter) {
        Footer = FindFirstElement(AwardDivOuter, AwardFooterXPath);
        AwardDivToHide = FindFirstElement(AwardDivOuter, AwardToHideXPath);

        if (!Visible) {
            if (glblMode == DiscussMode) {
                buf += AwardCounter;
            }

            buf += '<small>( <a href="#flickrawardconfig-countreshow-' + PhotoId + '" class="Plain">show awards</a> )</small>';
            Footer.innerHTML = buf;
        } else {
            Footer.innerHTML = '';
        }

        if (Visible) {
            //AwardDivToHide.style.visibility = 'visible';
            AwardDivToHide.style.display = 'inline';
            AwardDivToHide.style.lineHeight = 'normal';
        } else {
            //AwardDivToHide.style.visibility = 'hidden';
            AwardDivToHide.style.display = 'none';
        }

        //FixHeights();
    }
}

function DisplayFavourites(favCount, PhotoId){
    var AwardDivOuter = GetDisplayElement(PhotoId);
    if (AwardDivOuter) {
        var AwardDiv = FindFirstElement(AwardDivOuter,AwardInnerXPath);
        AwardDiv.innerHTML += '&nbsp; <b>' + favCount + '</b> favourites<br/>';
    }
}

function DisplayGalleries(galCount, PhotoId){
    var AwardDivOuter = GetDisplayElement(PhotoId);
    if (AwardDivOuter) {
        var AwardDiv = FindFirstElement(AwardDivOuter,AwardInnerXPath);
        AwardDiv.innerHTML += '&nbsp; <b>' + galCount + '</b> galleries<br/>';
    }
}


function DisplayAwards(AwardCounts, CommentCount, PhotoId) {
    var addedAward,
        AwardDiv,
        buf = '',
        Award,
        AwardDivOuter = GetDisplayElement(PhotoId);

    if (AwardDivOuter) {
        AwardDiv = FindFirstElement(AwardDivOuter,AwardInnerXPath);
        // Iterate over awards
        addedAward = false;

        for (var i = 0; i < glblConfigAwards.length; i++) {
            Award = glblConfigAwards[i];

            if (Award != undefined) {

                // Stick our content into the page before comments
                if ((!glblHideZeroCount) || (AwardCounts[i] != 0)) {
                    buf += '&nbsp;&nbsp;&nbsp;&nbsp;<b>' + AwardCounts[i] + '</b> ' + Award.Name + '<br/>';
                }

                addedAward = true;
            }
        }

        buf += '&nbsp; <b>' + CommentCount + '</b> comments<br/>';

        if (!addedAward){
            buf += 'No awards configured, please click configure to set some up<br/>';
        }

        AwardDiv.innerHTML = buf;

        if (glblMode != SinglePhotoMode) {
            ToggleDisplayAwards(PhotoId, true);
        }
    }
}

function GetImageId(url)
{
    url = url.substring(url.lastIndexOf('/') + 1,255);
    url = url.substring(0,url.indexOf('_'));
    return url;
}

function FindPhotoIdInElement(theElement) {
    var idAttr = theElement.attributes['data-photo-id'],
        elements,
        matches;

    if (idAttr) {//photo id is an attribute of the node
        return idAttr.value;
    } else {

        if (theElement.className && theElement.className == 'interaction-view' && theElement.firstElementChild && theElement.firstElementChild.firstElementChild && theElement.firstElementChild.firstElementChild.href) {// try new group pool page format
            //group pool page in new format, photo id is in the href attribute of the link as grand-child of the node
            return theElement.firstElementChild.firstElementChild.href.replace(/.*\/(\d+)\/.*/, "$1");
        }
    }

    var thisElement,
        buf,
        query,
        items = [],
        realUrl,

        allImgs = document.evaluate(
        ".//img",
        theElement,
        null,
        XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
        null);

    for (var i = 0; i < allImgs.snapshotLength; i++) {
        thisElement = allImgs.snapshotItem(i);

        if (thisElement.src.match('^https?:\/\/(.*)(static\.?flickr|yimg)\.com\/(.*)\/(.*).jpg$')) {
            buf = GetImageId(thisElement.src);
            return buf;
        }

        if (thisElement.src.match('^https://ec.yimg.com/ec.*$')) {
            query = thisElement.src.split('?')[1].split('&');

            for (var j = 0; j < query.length; j++) {
                items = query[j].split("=");

                if (items[0] == 'url') {
                    realUrl = unescape(items[1]);
                    buf = GetImageId(realUrl);
                    return buf;
                }
            }
        }
    }

    return '';
}

function GetCommentCountLink(ImageId) {

    if (glblMode == PoolMode) {
        return '<span id="awardcount-awardfooter"><small>( <a href="#flickrawardconfig-countshow-'+ ImageId +'" class="Plain">show awards</a> )</small>';
    } else {
        return '<span id="awardcount-awardfooter"><small>flickr Award Counter ( <a href="#flickrawardconfig-countshow-'+ ImageId +'" class="Plain">show awards</a> ) </small>';
    }
}

function AddGlobalStyle(css) {
    var head, style;
    head = document.getElementsByTagName('head')[0];
    if (!head) { return; }
    style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = css;
    head.appendChild(style);
}

function AddCommentCountLinks(xPath, into) {

    var context = (xPath.indexOf('message') != -1 && document.getElementsByClassName('replies')) ? document.getElementsByClassName('replies')[0] : document,

        allElements = document.evaluate(
        xPath,
        context,
        null,
        XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
        null),

        ImageId,
        thisElement,
        newElement,
        buf;

    for (var i = 0; i < allElements.snapshotLength; i++) {

        thisElement = allElements.snapshotItem(i);

        if (thisElement.innerHTML.indexOf('flickraward-awardcount-') > -1) {
            continue;
        }

        ImageId = FindPhotoIdInElement(thisElement);

        if (ImageId != '') {
            newElement = document.createElement('div');
            newElement.setAttribute('id','flickraward-awardcount-' + ImageId);
            newElement.setAttribute('style','z-index: 9000; margin-top: 8px; text-align:left; ! important');
            newElement.setAttribute('class','flickraward');
            buf = '<span id="flickraward-awardcount-tohide" style="display:none;">';
            buf += '<span id="flickraward-awardcount-inner" class="AwardCount"></span>';
            buf += '<small>( <a href="#flickrawardconfig-counthide-' + ImageId + '" class="Plain">hide awards</a> )</small>';
            buf += '</span>' + GetCommentCountLink(ImageId);
            newElement.innerHTML = buf;
            //todo : change this to insert after poollist
            if (into) {
                thisElement.appendChild(newElement);
            } else {
                thisElement.parentNode.insertBefore(newElement, thisElement.nextSibling);
            }
        }
    }
}

function GetElements(node, xpath){
    var allElements = document.evaluate(
        xpath,
        node,
        null,
        XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
        null);
    return allElements;
}

function AddJustifiedCommentCountLinks(xPath) {

    var allElements = GetElements(document, xPath),
        thisElement,
        newElement,
        buf,
        height,
        width,
        imageId,
        newPoolLayout = xPath.indexOf('interaction-view') != -1;//true if pool page is displayed in the new as opposed to classic layout

    for (var i = 0; i < allElements.snapshotLength; i++) {
        thisElement = allElements.snapshotItem(i);

        if ((thisElement.innerHTML.indexOf('flickraward-awardcount-') > -1) || (newPoolLayout && thisElement.parentElement.innerHTML.indexOf('flickraward-awardcount-') > -1)) {
            continue;
        }

        imageId = FindPhotoIdInElement(thisElement);

        if (imageId) {
            height = Math.floor(thisElement.clientHeight * 0.8);
            width = Math.floor(thisElement.clientWidth * 0.98);
            newElement = document.createElement('div');
            newElement.setAttribute('id','flickraward-awardcount-' + imageId);
            newElement.setAttribute('style','position:absolute; background-color: #ffffff; opacity:0.65; left:5px; top:10px; max-height: ' + (height + 5) + 'px; padding: 0 5px; text-align:left; z-index:100; ! important');
            newElement.setAttribute('class','flickraward');
            buf = '<div style="overflow: auto; max-width: ' + width + 'px; max-height: ' + height + 'px;"><span id="flickraward-awardcount-tohide" style="display:none;">';
            buf += '<span><small>( <a href="#flickrawardconfig-counthide-' + imageId + '" class="Plain">hide awards</a> )</small></span><br/>';
            buf += '<span id="flickraward-awardcount-inner" class="AwardCount"></span>';
            buf += '</span></div>' + GetCommentCountLink(imageId);
            newElement.innerHTML = buf;

            if (newPoolLayout) {
                thisElement.parentElement.appendChild(newElement);
            } else {
                thisElement.appendChild(newElement);
            }
        }
    }
}

function ProcessFlickrPhotoPage()
{
    var discussPane, newElement;
    var insertAfter = false;
    discussPane = document.getElementById('DiscussPhoto');
    if (!discussPane) // new layout?
    {
        discussPane = document.getElementById('meta');
    }
    if (!discussPane){
        var commentsHolders = document.getElementsByClassName('sub-photo-right-row1');
        if (commentsHolders.length > 0) {
            discussPane = commentsHolders[0];
            insertAfter = true;
        }
    }
    if (discussPane)
    {
        CreateAwardPane(discussPane, insertAfter);
        // Get the number of images on the page
        GetAwardCounts();
    }
}

function ProcessFlickrGroupPage() {
    var thisElement = document.getElementById('DiscussTopic'),//classic format
        elements = [];

    if (!thisElement) {//new format
        elements = document.getElementsByClassName('replies');
        thisElement = (elements) ? elements[0] : null;
    }

    if (thisElement) {
        CreateCountAllDiv(thisElement);

        if (elements.length) {
            // new group format
            setTimeout(function () {
                AddCommentCountLinks(".//div[@class='message']", true);
            }, 3000);
        } else {
            // classic group format (deprecated)
            AddCommentCountLinks("//td[@class='Said']", true);
        }
     }
}

function FindFirstElement(root, xPath)
{
    var allElements = document.evaluate(
        xPath,
        root,
        null,
        XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
        null);
    var thisElement = null;
    if (allElements.snapshotLength > 0)
    {
        thisElement = allElements.snapshotItem(0);
    }
    return thisElement;
}

function CreatePoolViewErrorDiv(Parent){
    if (Parent)
    {
        var newElement = document.createElement('div');
        newElement.setAttribute('id','flickraward-errordiv');
        var buf = AwardCounter + ' ' + ConfigureLink + ' <small>( Cannot show awards in justified view, please change to a thumbnail view )</small>';
        newElement.innerHTML = buf;
        Parent.parentNode.insertBefore(newElement, Parent);
    }
}

function CreateCountAllDiv(Parent) {

    var newElement = document.createElement('div'),
        buf;

    if (Parent) {
        newElement.setAttribute('id','flickraward-awardcountall');
        buf = AwardCounter + ' ' + ConfigureLink + ' <small>( <a href="#flickrawardconfig-countallshow" class="Plain">show all awards</a> )</small>';
        newElement.innerHTML = buf;
        Parent.parentNode.insertBefore(newElement, Parent);
    }
}

function ProcessFlickrPoolPage() {
    AddGlobalStyle('.AwardCount { font-size: 11px; padding: 0px; text-align: left; ! important; }');
    // Spaceball / spaceout.gif can cover the next image in the grid and cause the wrong link to be clicked
    //AddGlobalStyle('.spaceball, .spaceout.gif { display: none !important; }');
    // Hide glitchy grey border when we inject our award count
    AddGlobalStyle('.photo-display-item { background-color: #ffffff !important; }');

    var thisElement = FindFirstElement(document, "//div[@id='pool-photos']");

	if (!thisElement) {
		thisElement = FindFirstElement(document, "//div[contains(concat(' ', normalize-space(@class), ' '), ' photo-list-view ')]");
	}

    if (thisElement) {
        CreateCountAllDiv(thisElement);
    }

    var varElement = document.getElementById("options-thumb");//deprecated page view

    if (varElement && varElement.innerHTML.indexOf("Justified") > -1) {//deprecated page view justified
        setInterval (function() {
            AddJustifiedCommentCountLinks("//div[contains(@class,'pool-photo photo-display-item') and not(div[class='flickraward'])]");
        }, 3000);
    } else if (varElement) {//deprecated page view non justified
        setInterval (function() {
            AddCommentCountLinks("//div[contains(@class,'pool-photo photo-display-item') and not(div[class='flickraward'])]",true);
        }, 3000);
    } else {//assume new justified page format
        setInterval (function() {
            AddJustifiedCommentCountLinks("//div[contains(@class,'interaction-view')]");
        }, 3000);
   }
}

function FixHeights(){

    var allElements = GetElements(document, "//div[contains(@class,'pool-photo photo-display-item')]"),
        k,
        thisElement,
        rowElement,
        totalHeight,
        maxHeight = 0,
        rowElements = [],
        lastTop;

    if (allElements.snapshotLength == 0) {// try new pool page format
        allElements = GetElements(document, "//div[contains(@class,'view photo-list-photo-view')]");
    }

    lastTop = allElements.snapshotItem(0).offsetTop

    for (var i = 0; i < allElements.snapshotLength; i++) {
        thisElement = allElements.snapshotItem(i);

        if (thisElement.offsetTop != lastTop) {

            for (k = 0; k < rowElements.length; k++) {
                rowElement = rowElements[k];
                rowElement.style.height = maxHeight + 'px';
            }

            rowElements = [];
            maxHeight = 0;
            lastTop = thisElement.offsetTop;
        }

        rowElements.push(thisElement);
        totalHeight = 30;

        for (var j = 0; j < thisElement.childNodes.length; j++ ){
            totalHeight += thisElement.childNodes[j].offsetHeight;
        }

        if (totalHeight > maxHeight) {
            maxHeight = totalHeight;
        }
    }

    for (k = 0; k < rowElements.length; k++) {
        rowElement = rowElements[k];
        rowElement.style.height = maxHeight + 'px';
    }
}

function RemoveTags(theString)
{
    theString = theString.replace('<', '');
    theString = theString.replace('>', '');
    return theString;
}

function ConvertTags(theString)
{
    theString = theString.replace('<', '&lt;');
    theString = theString.replace('>', '&gt;');
    return theString;
}

function DateDiffDays(date1, date2)
{
    var one_day=1000*60*60*24;
    return Math.ceil((date1.getTime()-date2.getTime())/(one_day));
}

function ProcessUpdateInfo(updateInfo){
    try {
        var obj = eval('(' + updateInfo + ')');
        if (obj.error) {
            alert('Update check error: ' + obj.error);
        } else {
            glblServerVersion = obj.version;
        }
        glblLastCheckedVersion = new Date();
        SaveUpdateInfo();
        if (NewerVersion(glblServerVersion,glblVersion)) {
            alert('There is a flickr Award Counter update available. Please check the configuration page for details');
        }
    } catch (e) {
        GM_log("error processing updateinfo: " + e + " - updateInfo=\"" + updateInfo + "\"");
    }
}

function CheckForUpdates()
{
    if (!glblUpdateCheck) {
        return;
    }
    var currentDate = new Date();
    if ((glblLastCheckedVersion != undefined) && (DateDiffDays(currentDate,glblLastCheckedVersion) < 7)) {
        return;
    }
    var onLoadFunction = function(details) {
        ProcessUpdateInfo(details.responseText);
    }
    CallMethod(glblScriptVersionUrl,new Array(),onLoadFunction);
}

function LoadCloudSettings()
{
    var onLoadFunction = function(details) {
        ProcessCloudSettings(details.responseText);
    }
    var params = new Array();
    params['action'] = 'load';
    params['settingsid'] = glblCloudSettingsId;
    CallPostMethod(glblCloudSettingsUrl,params,onLoadFunction);
}

function SaveCloudSettings(){
    var onSaveFunction = function(details) {
        ProcessCloudSettings(details.responseText);
    }
    var params = new Array();
    params['action'] = 'save';
    params['settingsid'] = glblCloudSettingsId;
    params['settings'] = CreateSaveAwardStr();
    CallPostMethod(glblCloudSettingsUrl,params,onSaveFunction);
}

function EvalReturnValue(val){
    try {
        return eval('(' + val + ')');
    }
    catch (e) {
        alert("Oops! Could not parse the value returned from the webserver! \r\n" + e.name + " " + e.message + " '" + val + "'");
    }
}

function ProcessCloudSettings(cloudSettings){
    var obj = EvalReturnValue(cloudSettings);
    var msg;
    if (obj.error) {
        alert('Settings error: ' + obj.error);
        return;
    }
    if ((!obj.settingsid) || (!obj.action)) {
        alert('Settings error: Server returned invalid data');
        return;
    }
    glblCloudSettingsId = obj.settingsid;
    SaveCloudSettingsId();
    SafeSetElementValue("AwardCloudSettingsId",glblCloudSettingsId);
    if (obj.action == 'save') {
        msg = "Settings saved";
    }
    if (obj.action == 'load') {
        ParseSaveAwardStr(obj.settings);
        ConfigDisplayAwards();
        msg = "Settings loaded";
    }
    alert(msg);
}

// ===================================================================
// Main script

function Main()
{
    GM_registerMenuCommand("Configure flickrAwardCounter",EventConfigPage);
    GM_registerMenuCommand("Clear flickrAwardCounter config",EventClear);
    AddGlobalStyle('.AwardCounterButton:link, .AwardCounterButton:visited { padding: 2px 4px 2px 4px; margin: 0px; text-decoration: none; width: 65px; text-align: center; border: 1px solid; border-color: #aaa #000 #000 #aaa; background: #BBBBBB; ! important; }');
    AddGlobalStyle('.AwardCounterButtonSmall:link, .AwardCounterButtonSmall:visited { padding: 2px 4px 2px 4px; margin: 0px; text-decoration: none; width: 10px; text-align: center; border: 1px solid; border-color: #aaa #000 #000 #aaa; background: #BBBBBB; ! important; }');
    AddGlobalStyle('.AwardCounterButton:hover, .AwardCounterButtonSmall:hover { border-color: #000 #aaa #aaa #000; ! important; }');
    AddGlobalStyle('.AwardCount { text-align: left; ! important; }');

    if (glblConfigAwards == undefined) {
        Load();
    }

    ConfigureEvents();

    if (document.location.href.match('^https?:\/\/(.*)\/groups\/(.*)\/discuss(.*)$')) {
        // this is a group discussion page
        glblMode = DiscussMode;
        ProcessFlickrGroupPage();
    } else if (document.location.href.match('^https?:\/\/(.*)\/groups\/(.*)\/pool(.*)$')) {
        // this is a group pool page
        glblMode = PoolMode;
        ProcessFlickrPoolPage();
    } else {
        // this is a photo page
        glblMode = SinglePhotoMode;
        ProcessFlickrPhotoPage();
    }

    CheckForUpdates();
}

Main();