// Released under the MIT/X11 license
// http://www.opensource.org/licenses/mit-license.php

jetpack.future.import("pageMods");
jetpack.future.import("storage.simple");
jetpack.future.import("selection");
jetpack.future.import("clipboard");

var RHColor = "#9E292B";
var FedoraColor = "#002867";
var RawhideColor = "#007700"; // or "green"
var RHITColor = "#660066";
var SalmonPink = "#FFE0B0";
var ReporterColor = "#FFFFA6";
var XMLRPCurl = "https://bugzilla.redhat.com/xmlrpc.cgi";
var myConfig = jetpack.storage.simple;
var badMIMEArray = ["application/octet-stream","text/x-log"];

//==============================================================
// CONFIGURE: The easiest method how to set up the configuration
// value is to uncomment the following line with proper URL as
// the second parameter. Then reload the bug page and comment out
// again.
// myConfig.JSONURL = "URL-somewhere-with-your-JSON";
var jsonDataURL = myConfig.JSONURL ? myConfig.JSONURL :
    "http://mcepl.fedorapeople.org/scripts/BugZappers_data.json";
var PCIIDsURL = "http://mcepl.fedorapeople.org/scripts/drm_pciids.json";
//var debug = GM_getValue("debug",false);
var reqCounter = 0;
var msgStrs = {};

var CommentRe = new RegExp("^\\s*#");
var BlankLineRe = new RegExp("^\\s*$");
var ChipsetRE = new RegExp("^\\(--\\) ([A-Za-z]+)\\([0-9]?\\): Chipset: (.*)$");
var ATIgetIDRE = new RegExp("^.*\\(ChipID = 0x([0-9a-fA-F]+)\\).*$");

var inArray = ["application/octet-stream","text/x-log"];

// For identification of graphics card
var manuChipStrs = [
    ["ATI Radeon", "ATI", "1002"],
    ["ATI Mobility Radeon", "ATI", "1002"],
    ["Intel Corporation", "INTEL", "8086"],
    ["NVIDIA", "NV", "10de"]
];
var backTranslateManufacturerPCIID = [{
        regexp: "ATI Technologies Inc",
        addr: "1002"
    }, {
        regexp: "Intel Corporation",
        addr: "8086"
    }, {
        regexp: "nVidia Corporation",
        addr: "10de"
}];
// Initialize data from remote URL
var XMLHTTPRequestDone = false;
var hashBugzillaName = [];
var hashBugzillaWholeURL = [];
var defAssigneeList = [];
var signatureFedoraString = "";
// TODO we should have an array SpecialFlags instead of multiple Boolean variables
var queryButtonAvailable = false;
var chipIDsGroupings = [];
var AddrArray = [];
var PCI_ID_Array = [];
var topRow = {};
var bottomRow = {};

// Get JSON configuration data
$.getJSON(jsonDataURL, function (response) {
    msgStrs = response.strings;
    signatureFedoraString = response.signature;
    hashBugzillaName = response.bugzillalabelNames;
    hashBugzillaWholeURL = response.bugzillaIDURLs;
    // [{'regexp to match component':'email address of an universal maintainer'}, ...]
    AddrArray = response.CCmaintainer;
    defAssigneeList = response.defaultAssignee;
    queryButtonAvailable = response.queryButton;
    chipIDsGroupings = response.chipIDsGroupings;
    topRow = response.topRow;
    bottomRow = response.bottomRow;
});

// Get card translation table
$.getJSON(PCIIDsURL,
    function (response) {
        PCI_ID_Array = response;
});

//==============================================================

/**
 * select element of the array where regexp in the first element matches second parameter
 *     of this function
 * @param list array with regexps and return values
 * @param chosingMark string by which the element of array is to be matched
 * @return string chosen element
 */
filterByRegexp = function(list, chosingMark) {
    var chosenPair = [];
    if (list.length > 0) {
        chosenPair = list.filter(
                function (pair) {
                    return new RegExp(pair.regexp, "i").test(chosingMark);
                });
    }
    if (chosenPair.length > 0) {
        return $.trim(chosenPair[0].addr);
    } else {
        return "";
    }
}

/**
 * Converts attributes value of the given list of elements to the
 *  Javascript list.
 *  @param list array of elements
 *  @return array of values
 */
valuesToList = function(list) {
    var outL = [];

    list.forEach(function (e, i, a) {
        if (e.hasAttribute("value")) {
            outL.push(e.getAttribute("value").trim());
        }
    });
    return outL;
}

/**
 * Check whether an item is member of the list. Idea is just to
 * make long if commands slightly more readable.
 *
 * @param mbr string to be searched in the list
 * @param list list
 * @return position of the string in the list, or -1 if none found.
 */
isInList = function(mbr, list) {
    return (list.indexOf(mbr) !== -1);
}

/**
 * This function creates a new anchor element and uses location properties (inherent)
 * to get the desired URL data. Some String operations are used (to normalize results
 * across browsers).
 * originally from http://snipplr.com/view.php?codeview&id=12659
 *
 * @param url String with URL
 * @return object with parameters set
 *
 */
function parseURL(url) {
    var a =  $('a',this.doc).get(0);
    a.href = url;
    return {
        source: url,
        protocol: a.protocol.replace(':',''),
        host: a.hostname,
        port: a.port,
        query: a.search,
        params: (function(){
            var ret = {},
                seg = a.search.replace(/^\?/,'').split('&'),
                len = seg.length, i = 0, s;
            for (;i<len;i++) {
                if (!seg[i]) { continue; }
                s = seg[i].split('=');
                ret[s[0]] = s[1];
            }
            return ret;
        })(),
        file: (a.pathname.match(/\/([^\/?#]+)$/i) || [,''])[1],
        hash: a.hash.replace('#',''),
        path: a.pathname.replace(/^([^\/])/,'/$1'),
        relative: (a.href.match(/tp:\/\/[^\/]+(.+)/) || [,''])[1],
        segments: a.pathname.replace(/^\//,'').split('/')
    };
}

/**
 * Check for the presence of a keyword
 *
 * @param str string with the keyword
 * @return Boolean
 *
 */
bzPage.prototype.hasKeyword = function (str) {
     var kwd = $.trim($('#keywords', this.doc).text());
     return (new RegExp(str).test(kwd));
};

/**
 * Send mouse click to the specified element
 * @param element where to send mouseclick to
 * @return None
 */
bzPage.prototype.clickMouse = function(target) {
    var localEvent = this.doc.get(0).createEvent("MouseEvents");
    localEvent.initMouseEvent("click", true, true,
            this.doc.defaultView,
            0, 0, 0, 0, 0, false, false, false, false, 0, null);
    $(target).get(0).dispatchEvent(localEvent);
}

/**
 * Add new keyword among the keywords.
 *
 * @param str string with the new keyword
 * @return none
 *
 * Checks for the existing keywords.
 */
bzPage.prototype.addKeyword = function (str) {
    var kwd = $('#keywords',this.doc);
    if (kwd.text().length == 0) {
        kwd.text(str);
    }else{
        kwd.text(kwd.text() + ", " + str);
    }
}

/* Bugzilla functions.*/

/**
 * Set background color of all comments made by reporter in ReporterColor color
 *
 */
bzPage.prototype.checkComments = function () {
    var that = this;
    $("#comments .bz_comment", this.doc).each(function (i) {
        var email = $(".vcard a", this).text();
        if (new RegExp(that.reporter).test(email)) {
            $(this).css("background-color", ReporterColor);
        }
    });
};

/**
 * Set branding colours to easily distinguish between Fedora and RHEL bugs
 *
 * @param brand string with product of the current bug
 * @param version string with the version of the bug
 * @param its string with the IsueTracker numbers
 * @return none
 *
 */
bzPage.prototype.setBranding = function () {
    var brandColor = "";

    if (new RegExp("Red Hat Enterprise Linux").test(this.product)) {
        if (this.its.length > 0) {
            brandColor = RHITColor;
        } else {
            brandColor = RHColor;
        }
    } else if (new RegExp("Fedora").test(this.product)) {
        if (new RegExp("rawhide", "i").test(this.version)) {
            brandColor = RawhideColor;
        } else {
            brandColor = FedoraColor;
        }
    }

    // Comment each of the following lines to get only partial branding
    $("body", this.doc).css("background", brandColor);
    $("#titles", this.doc).css("background", brandColor);

     // Make background-color of the body of bug salmon pink
    // for security bugs.
     if (this.hasKeyword("Security")) {
          $("#bugzilla-body", this.doc).css({
            'background-image' : 'none',
            'background-color' : SalmonPink
          });
     }

    // we should make visible whether maintCCAddr is in CCList
    if (isInList(this.maintCCAddr, this.CCList)) {
        $("#cc_edit_area_showhide", this.doc).
            css({ "color": "navy",
                "font-weight": "bolder",
                "text-decoration": "underline"});
    }
};

/**
 */
bzPage.prototype.groupIDs = function (manStr,cardStrID) {
    var outStr = filterByRegexp(chipIDsGroupings,manStr+","+cardStrID);
    if (outStr.length == 0) {
        outStr = "UNGROUPED_" + manStr+"/"+cardStrID;
    }
    return outStr;
};

/**
 * Given PCI IDs for manufacturer and card ID return chipset string
 *
 * @param manufacturerNo string with manufacturer PCI ID
 * @param cardNo         string with card PCI ID
 *
 * @return array with chip string and optinoal variants
 */
bzPage.prototype.checkChipStringFromID = function (manufacturerNo,cardNo) {
    console.log("This is the card ID: " + cardNo + " manufactured by " + manufacturerNo);
    var soughtID = (manufacturerNo+","+cardNo).toUpperCase();
    var outList = PCI_ID_Array[soughtID];
    console.log("nalezeno = " + outList.toSource());
    if (outList) {
        return outList;
    } else {
        return "";
    }
};

/**
 * Given line to be parsed, find out which chipset it is and fill in the whiteboard
 *
 * @param iLine string with the whole unparsed "interesting line"
 * @param driverStr string with the driver name
 * @return None
 */
bzPage.prototype.fillInWhiteBoard = function (iLine, driverStr) {
    var outStr = "";
    var cardIDStr = "";
    var cardIDArr = [];

    console.log("driverStr = " + driverStr);
    console.log("iLine: " + iLine);

    chipSwitchboard:
    if (driverStr == "RADEON") {
        var cardID = iLine.replace(ATIgetIDRE,"$1");
        cardIDArr = this.checkChipStringFromID("1002",cardID);
        if (cardIDArr.length > 0) {
            cardIDStr = cardIDArr[0];
            if (cardIDArr[1]) {
                optionStr = cardIDArr[1];
                outStr = this.groupIDs(driverStr,cardIDStr)+"/" + optionStr;
                console.log("cardIDArr = " + cardIDArr.toSource() + ", outStr = "+outStr);
            } else {
                outStr = this.groupIDs(driverStr,cardIDStr);
                optionStr = "";
            }
            console.log("found IDs: " + cardIDStr + "," + optionStr);
        } else {
            outStr = "**** FULLSTRING: " + iLine;
        }
    } else {
    // Intel Corporation, NVIDIA
        cardIDArr = manuChipStrs.filter(function (el, ind, arr) {
            return RegExp(el[0],"i").test(iLine);
        });
        console.log("cardIDArr = " + cardIDArr.toSource());
        if (cardIDArr && (cardIDArr.length > 0)) {
            cardIDArr = cardIDArr[0];
        } else {
            outStr = iLine;
            break chipSwitchboard;
        }
        // cardIDArr [0] = RE, [1] = ("RADEON","INTEL","NOUVEAU"), [2] = manu PCIID
        iLine = $.trim(iLine.replace(RegExp(cardIDArr[0],"i")));
        // FIXME is this necessary? Let's try without it
        // outStr = iLine.replace(/^\W*(\w*).*$/,"$1");
        // nVidia developers opted-out from grouping
        if (driverStr == "INTEL") {
            outStr = this.groupIDs(cardIDArr[1],iLine);
        } else {
            outStr = iLine;
        }
    }
    var whiteboardInput = $("#status_whiteboard",this.doc);
    var oldWhiteboard = whiteboardInput.attr("value");
    var attachedText = $.trim("card_"+outStr);
    if (oldWhiteboard) {
        attachedText += ", " + oldWhiteboard;
    }
    whiteboardInput.attr("value",attachedText);
    $("#chipmagic", this.doc).css("display","none");
};

/**
 * Generic function to add new button to the page.
 * Actually copies new button from the old one (in order to have the same
 * look-and-feel, etc.
 * @param originalLocation object with the button to be copied from
 * @param newId string with the id of the new button; has to be unique in
                    whole page
 * @param newLabel string with the label which will be shown to user
 * @param commentString string with comment to be added to the comment box
 * @param nState string with the new state bug should switch to (see
 *                     generalPurposeCureForAllDisease function for details)
 * @param secPar string with second parameter for generalPurposeForAllDisease
 * @param doSubmit bool optional whether the button should submit whole page
 *                 (default true)
 *
 * @return none
 */
bzPage.prototype.addNewButton = function (originalLocation,newId,newLabel,
        commentString,nState,secPar,doSubmit,after) {
    var that = this;
    var commStr = "";
    if (doSubmit === null) { // missing optional argument
        doSubmit = false;
    }
    if (after === null) { // missing optional argument
        after = false;
    }
    if (msgStrs[commentString]) {
        commStr = msgStrs[commentString];
    }
    var newButton = this.originalButton.clone(true).attr({
            "id":newId,
            "value":newLabel
        }).click(function (evt) {
            that.generalPurposeCureForAllDisease(commStr,nState, secPar);
        });
    newButton;
    if (after) {
        $(originalLocation, this.doc).after(newButton).after("\u00A0");
    } else {
        $(originalLocation, this.doc).before(newButton).before("\u00A0");
    }
    if (!doSubmit) {
        newButton.get(0).setAttribute("type","button");
    }
}

/**
 * Get attached Xorg.0.log, parse it and find the value of chip.
 * Does not fill the whiteboard itself, just adds button to do so,paramList
 * so that slow XMLHTTPRequest is done in advance.
 *
 * @return None
 */
bzPage.prototype.fillInChipMagic = function () {
    var XorgLogURL = "";
    var XorgLogAttID = "";
    var XorgLogFound = false;
    var attURL = "", interestingLine = "";
    var interestingArray = [];

    // Find out Xorg.0.log attachment URL
    this.XorgLogAttList = this.attachments.filter(function (value, index, array) {
        // Xorg.0.log must be text, otherwise we cannot parse it
        return (/[xX].*log/.test(value[0]) && /text/.test(value[2]));
    });
    if (this.XorgLogAttList.length == 0) {
        console.log("No Xorg.0.log attachments found.")
        return;
    }

    var XorgLogAttID = this.XorgLogAttList[this.XorgLogAttListIndex][1];
    attURL = "https://bugzilla.redhat.com/attachment.cgi?id="+XorgLogAttID;
    that = this;
    $.get(attURL,function (ret){
        var interestingLineArr = ret.split("\n").filter(function (v,i,a) {
            return ChipsetRE.test(v);
        });
        if (interestingLineArr.length >0) {
            interestingArray = ChipsetRE.exec(interestingLineArr[0]);
            interestingLine = $.trim(interestingArray[2].replace(/[\s"]+/g," "));
            console.log("interestingArray = " + interestingArray.toSource() +
                ", interestingLine = " + interestingLine);
            var whiteboardInput = $("#status_whiteboard",that.doc);
            that.addNewButton(whiteboardInput,"chipmagic","Fill In",
                "","CHIPMAGIC",
                interestingLine+"\t"+interestingArray[1].toUpperCase(),
                false,true);
        }
    });
    this.XorgLogAttListIndex++;
};

/**
 * Opens a new tab with a query for the given text in the selected component
 * @param text to be searched for
 * @param component string with the component name (maybe latter regexp?)
 * @param product (optional) string with the product name
 * @return None
 *
 * old
 * long_desc=Xpress%20200&bug_status=NEW&bug_status=ASSIGNED
 * new
 * long_desc_type=substring&long_desc=Xpress%20200&bug_status=NEW&bug_status=ASSIGNED
 */
bzPage.prototype.queryInNewTab = function(text,component,product) {
    // Optional parameter
    if (product == null) {
        product = "Fedora";
    }
    var url = "https://bugzilla.redhat.com/buglist.cgi?query_format=advanced";
    if (product) {
        url += "&product="+product;
    }
    if (component) {
        url += "&component="+component;
    }
    if (text) {
        url += "&field0-0-0=longdesc&type0-0-0=substring&value0-0-0="+text+
        "&field0-0-1=attach_data.thedata&type0-0-1=substring&value0-0-1="+text;
    }
    jetpack.tabs.open(url);
}

/**
 * Get the text to search for and prepare other things for the real executive
 * function this.queryInNewTab, and run it.
 */
bzPage.prototype.queryForSelection = function() {
    var text = $.trim(jetpack.selection.text);
    if (text.length < 1) {
        text = jetpack.clipboard.get();
    };
    if (text.length > 0) {
        this.queryInNewTab(text, this.component);
    }
}

/**
 * Parse the row with the attachment
 *
 * @param <tr> DOM element to be parsed
 * @return array with string name of the attachment,
                     integer its id number,
                     string of MIME type,
                     integer of size in kilobytes,
                     and the whole element itself
 */
bzPage.prototype.parseAttachmentLine = function (inElem,idx) {
    var MIMEtype = String();
    var size = Number();

    // Skip over obsolete attachments
    if ($(".bz_obsolete",inElem).length>0) {
        return([]);
    }

    // getting name of the attachment
    var attName = $.trim($("b:first", inElem).text());

    // getting id
    var aHrefs = $("a:contains('Details')", inElem);
    var id = parseInt(aHrefs.attr("href").replace(/^.*attachment.cgi\?id=/, ""),10);

    //getting MIME type and size
    var stringArray = $(".bz_attach_extra_info",inElem).text().
        replace(/[\n ()]+/g," ").trim().split(", ");
    size = parseInt(stringArray[0],10);
    MIMEtype = stringArray[1].split(" ")[0];

    return [attName,id,MIMEtype,size,inElem];
};

/**
 * Select option with given label on the <SELECT> element with given id.
 *
 * Also execute change HTMLEvent, so that the form behaves accordingly.
 *
 * @param id
 * @param label
 * @return none
 */
bzPage.prototype.selectOption = function(id,label) {
    var selectElement = $("#"+id,this.doc);
    var theOption =  $("option[value='"+label+"']",selectElement);
    theOption.attr("selected","selected");
    var intEvent = $(this.doc).get(0).createEvent("HTMLEvents");
    intEvent.initEvent("change", true, true);
    selectElement.get(0).dispatchEvent(intEvent);
}

/**
 * Check for the presence of a keyword
 *
 * @param str string with the keyword
 * @return Boolean
 *
 */
bzPage.prototype.hasKeyword = function(str) {
     var kwd = $.trim($('#keywords',this.doc).text());
     return (RegExp(str).test(kwd));
}

/**
 * Add accesskey to the particular element
 *
 * @param rootElement element to which the new text object will be attached
 * @param beforeText text before the accesskey character
 * @param accKey what will be the accesskey itself
 * @param afterText text after the accesskey character
 * @return modified element with the fixed accesskey
 *
*/
bzPage.prototype.fixElement = function (rootElement,beforeText,accKey,afterText) {
    elem = $(rootElement);
    elem.attr("accesskey",accKey.toLowerCase());
    elem.html(beforeText + "<b><u>" + accKey + "</u></b>" + afterText);
    return elem;
}

/**
 * Add XGL  to the CC list
 *
 * @param evt event which made this function active
 * @return none
 */
bzPage.prototype.changeOwner = function(newAssignee) {
    /** Take care that when changing assignment of the bug,
     * current owner is added to CC list.
     * Switch off setting to the default assignee
     */
    console.log("Changing owner of the bug to " + newAssignee);
    if (!isInList(newAssignee, this.CCList)) {
        $("#newcc",this.doc).text(newAssignee);
    }
    this.clickMouse($("#bz_assignee_edit_action",this.doc));
    $("#set_default_assignee",this.doc).removeAttr("checked");
    $("#assigned_to", this.doc).attr("value",newAssignee);
    $("#setdefaultassigneebutton", this.doc).css("display","none");
}

/**
 * Set the bug to NEEDINFO state
 *
 * Working function.
 * @return none
 */
bzPage.prototype.setNeedinfoReporter = function() {
    $("#needinfo",this.doc).click();
    this.selectOption("needinfo_role", "reporter");
}

/**
 * Add text to the comment.
 * @param string2BAdded string to be added to the comment box
 *
 * @return none
 */
bzPage.prototype.addTextToComment = function(string2BAdded) {
    var commentTextarea = $("#comment",this.doc);

    // don't remove the current content of the comment box,
    // just behave accordingly
    if (commentTextarea.text().length > 0) {
        commentTextarea.text(commentTextarea.text() + "\n\n");
    }
    commentTextarea.text(commentTextarea.text() + string2BAdded);
}

/**
 * Return string with the ID for the external_id SELECT for
 * external bugzilla
 *
 * @param URLhostname string hostname of the external bugzilla
 * @return string with the string for the external_id SELECT
 */
bzPage.prototype.getBugzillaName = function(URLhostname) {
    var bugzillaID = "";
    if (hashBugzillaName[URLhostname]) {
        bugzillaID = hashBugzillaName[URLhostname];
    } else {
        bugzillaID = "";
    }
    return bugzillaID;
}

/**
 * Generate URL of the bug on remote bugzilla
 * @param selectValue Number which is index of the bugzilla in hashBugzillaWholeURL
 * @param bugID Number which is bug ID
 * @return string with the URL
 */
bzPage.prototype.getWholeURL = function(selectValue,bugID) {
    var returnURL = "";
    if (hashBugzillaWholeURL[selectValue]) {
        returnURL = hashBugzillaWholeURL[selectValue]+bugID;
    } else {
        returnURL = "";
    }
    return returnURL;
}

/**
 * Sends XMLRPC request
 *
 * @param url string with URL of the XML-RPC interface
 * @param data string with XML of the data to be sent
 * @param method string -- either 'post' or 'get'
 * @param callback function catching callback
 */
bzPage.prototype.sendRequest = function(url,data,method,callback) {
    //$.rpc(url, dataType, onLoadCallback, version);
    GM_xmlhttpRequest({
    method: method,
    url: url,
    headers: {
        'User-agent': 'Mozilla/4.0 (compatible) Greasemonkey fixAttType XMLRPC',
        'Accept': 'application/atom+xml,application/xml,text/xml',
        'Content-type': 'text/xml'
    },
    data: data,
    onload: callback
    });
}

/**
 * Callback function for the XMLRPC request
 *
 * @param ret object with xmlhttprequest response
 *                with attributes:
 *                + status -- int return code
 *                + statusText
 *                + responseHeaders
 *                + responseText
 */
bzPage.prototype.callBack = function(ret) {
    if (ret.status != 200) {
        alert([ret.status,ret.statusText,ret.responseHeaders,
            ret.responseText]);
    }
    if (--this.reqCounter <= 0) {
        setTimeout(document.location.reload,1000);
    }
}

/**
 * The worker function -- call XMLRPC to fix MIME type of the
 * particular attachment
 *
 * @param id integer with the attachment id to be fixed
 * @param type string with the new MIME type, e.g. "text/plain"
 *
 
updateAttachMimeType($data_ref, $username, $password)

Update the attachment mime type of an attachment. The first argument is a data hash containing information on the new MIME type and the attachment id that you want to act on.

        $data_ref = {
            "attach_id" => "<Attachment ID>",                
          # Attachment ID to perform MIME type change on.
            "mime_type"  => "<New MIME Type Value>",          
          # Legal MIME type value that you want to change the attachment to.
            "nomail" => 0, 
          # OPTIONAL Flag that is either 1 or 0 if you want email to be sent or not for this change
        };
 */
bzPage.prototype.fixAttachById = function(id,type) {
    var ret = {};
    var msg = new XMLRPCMessage("bugzilla.updateAttachMimeType");
    msg.addParameter({'attach_id':id, 'mime_type':type});
    msg.addParameter(login);
    msg.addParameter(password);
    try {
        ret = sendRequest(XMLRPCurl,
            msg.xml(),'post',callBack);
    }
    catch (e) {
        alert([e,ret]);
    }
    this.reqCounter++;
}

bzPage.prototype.fixAllAttachments = function(list) {
    var tmpElem = {};

    for(var i=0;i<list.length;i++) {
        tmpElem = list[i];
        fixAttachById(tmpElem[1],"text/plain");
    }
}

bzPage.prototype.createFixAllButton = function (list) {
    var aElem = $("<a href=''></a>", this.doc).click(function() {
        this.fixAllAttachments(list);
    });
    this.fixElement(aElem,"","F","ix all");
    return aElem;
}

bzPage.prototype.getTextAllLink = function (table,list) {
    var vAllElem = $("a[href*='action=enter']", $(table)).get();
}

bzPage.prototype.addTextLink = function (row) {
    var aList = row[row.length-1].getElementsByTagName("a");
    var curElem = aList[aList.length-1];
    var tElem = {};
    var t2Elem = {};
    var that = this;

    var tElem = $(" <a href=''>Text</a>",this.doc).click(function (event) {
            that.fixAttachById(row[1],"text/plain");
    });

    $("a",row).after(tElem).after("<br/>");
}

bzPage.prototype.isOctetStream = function (element, index, array) {
    return(inArray.indexOf(element[2]) != -1);
}

/**
 * Add information about the upstream bug upstream, and closing it.
 * @param evt event which called this handler
 *
 * @return none
 */
bzPage.prototype.addClosingUpstream = function() {
    var refs = $("#external_bugs_table tr",this.doc);
    // that's a bad id, if there is a one. :)
    var inputBox = $("#inputbox",this.doc);
    var externalBugID = 0;
    var wholeURL = "";

    // Fix missing ID on the external_id SELECT
    $("select[name='external_id']:first",this.doc).attr("id","external_id");

    if (inputBox.text().match(/^http.*/)) {
        var IBURLArr = parseURL(inputBox.text());
        console.log("IBURLArr = " + IBURLArr.toSource());
        externalBugID = parseInt(IBURLArr.params["id"]);
        inputBox.text(externalBugID);
        var bugzillaName = getBugzillaName(IBURLArr.host);
        this.selectOption("external_id", bugzillaName);
        console.log("externalBugID = " + externalBugID);
    } else if (!isNaN(inputBox.text())) {
        externalBugID = parseInt(inputBox.text());
        var bugzillaID = $("#external_id").text();
        wholeURL = getWholeURL(bugzillaID,externalBugID);
    } else {
        // no inputBox.value -- maybe there is an external bug from
        // the previous commit?
        ;
    }

    // It is not good to close bug as UPSTREAM, if there is no reference
    // to the upstream bug.
    if ((refs.length > 2) || (externalBugID > 0)) {
        this.addTextToComment(msgStrs['sentUpstreamString'].replace("§§§",wholeURL));
        this.selectOption("bug_status", "CLOSED");
        this.selectOption("resolution", "UPSTREAM");
    } else {
        alert("No external bug specified among the External References!");
    }
}

/** Insert a row of buttons before the marked element
 *
 * @param anchor element before which the row of buttons will be inserted
 * @param array  array of data for buttons to be generated
 * @return none
 */
bzPage.prototype.generateToolBar = function(anchor,array) {
    for (var i=0; i<array.length; i++) {
        var butt = array[i];
        this.addNewButton(anchor, butt['idx'],
                butt['msg'], butt['string'], butt['state'], butt['parameter'],
                butt['submit']);
    }
}

/**
 * Generalized function for all actions
 *
 * @param addString string to be added as new comment
 * @param nextState  string signifying next state of the bug (whatever is in Bugzilla +
      "NEEDINFO" meaning NEEDINFO(Reporter))
 * @param secondParameter    string with label on the subbutton for reason
 *                  of closing the bug
 * @return none
 */
bzPage.prototype.generalPurposeCureForAllDisease = function
    (addString,nextState,secondParameter) {
        if (addString.length >0) {
             this.addTextToComment(addString);
         }

         if (nextState == "CLOSED") {
             if (secondParameter == "UPSTREAM") {
                 this.addClosingUpstream();
             } else if (secondParameter.length > 0) {
                 this.selectOption("bug_status", nextState);
                 this.selectOption("resolution",secondParameter);
                 return 0;
             } else {
                 throw("Missing resolution for CLOSED status.");
             }
         }

         // Now closing bugs is done, what about the rest?
         if (nextState == "NEEDINFO") {
             this.setNeedinfoReporter();
         } else if (nextState == "ADDKEYWORD") {
             if (secondParameter.length == 0) {
                 throw "Keyword has to be defined";
             }
             this.addKeyword(secondParameter);
         } else if (nextState == "ASSIGNED") {
             if (!isInList(this.maintCCAddr, this.CCList)) {
                 $("#newcc",this.doc).text(this.maintCCAddr);
             }
             this.selectOption("bug_status", nextState);
         } else if (nextState == "QUERYSEL") {
             this.queryForSelection();
         } else if (nextState == "SETDEFASS") {
            if (secondParameter.length > 0) {
                this.changeOwner(secondParameter);
            }
         } else if (nextState == "CHIPMAGIC") {
             var splitArr = secondParameter.split("\t");
            this.fillInWhiteBoard(splitArr[0],splitArr[1]);
         } else if (nextState.length >0) {
             this.selectOption("bug_status", nextState);
         }

         if (secondParameter == "ADDSELFCC") {
             $("#addselfcc", this.doc).attr("checked","checked");
         } else if (secondParameter == "NODEFAULTASSIGNEE") {
             $("#set_default_assignee", this.doc).removeAttr("checked");
         }
}

/**
 * Main executable functioning actually building all buttons on the page --
 * separated into function, so that
 * it could be called from onload method of the XMLHTTPRequest.
 *
 * @param jsonList Array created from JSON
 * @return none
 */
bzPage.prototype.buildButtons = function (above,below) {
    //Generate a list of <input> elements in the page
    var IBLast = $("#commit_top", this.doc);
    this.addNewButton(IBLast,"changeOwnerbtn","reASSIGN",
            "","ASSIGNED","NODEFAULTASSIGNEE");

    // THE MAIN BUTTON ROWS
    var commentBox = $("#comment", this.doc);
    commentBox.before("<br>");
    this.generateToolBar(commentBox.prev(),above);
    this.generateToolBar(this.originalButton,below);

    if (queryButtonAvailable) {
        // Add query search button
        // Apparently there is a bug in jQuery, we have to use plain DOM
        //newPosition = $("#newcommentprivacy ~ br", this.doc);
        newPosition = $(this.doc.get(0).querySelector("#newcommentprivacy ~ br"));
        newPosition.css("border","solid blue");
        this.addNewButton(newPosition,"newqueryintab","Query for string",
            "","QUERYSEL","",false);
        }
    if ((chipIDsGroupings.length >0) && this.maintCCAddr == "xgl-maint@redhat.com") {
        // Add find chip magic button
        var whiteboard_string = $("#status_whiteboard", this.doc).attr("value");
        if (whiteboard_string.indexOf("card_") == -1) {
            this.fillInChipMagic();
        }
    }
    // Add setting default assignee
    console.log("defaultAssignee = " + this.defaultAssignee + ", owner = " + this.owner);
    if ((this.defaultAssignee.length > 0) && (this.defaultAssignee != this.owner)) {
        this.addNewButton($("#bz_assignee_edit_container", this.doc),
            "setdefaultassigneebutton","Def. Assignee",
            "","SETDEFASS",this.defaultAssignee,false,true);
    }
};

///////////////////////////////////////////////////////////////////////////////
function bzPage(doc) {
    this.doc = $(doc);
    that = this;
    this.originalButton = $("#commit", this.doc);
    var bugNoTitle = $.trim($("#title > p:first", this.doc).text());
    this.bugNo = new RegExp("[0-9]+").exec(bugNoTitle)[0];

    this.reporter = $("#bz_show_bug_column_2 > table .vcard:first > a",
        this.doc).attr("title");
    this.product   = $("#product option:selected:first", this.doc).text();
    this.component = $("#component option:selected:first", this.doc).text();
    this.version   = $("#version option:selected:first", this.doc).text();
    this.its       = $.trim($("#cf_issuetracker", this.doc).text());
    this.CCList    = $.makeArray($("#cc", this.doc).attr("value"));
    this.owner     = $("#bz_assignee_edit_container .fn:first", this.doc).text();
    this.defaultAssignee = filterByRegexp(defAssigneeList, this.component).toLowerCase();
    this.maintCCAddr = filterByRegexp(AddrArray,this.component).toLowerCase();

    this.XorgLogAttList = [];
    this.XorgLogAttListIndex = 0;
    this.attachments = [];
    this.reqCounter=0;
    atts = $.makeArray($(("#attachment_table tr"),this.doc).slice(1,-1));
    atts.forEach(function (val,idx,arr) {
        that.attachments.push(that.parseAttachmentLine(val,idx));
    });

    var badAttachments = this.attachments.filter(function (att,idx,arr) {
        return (badMIMEArray.indexOf(att[2]) != -1);
    });

    if (badAttachments.length > 0) {
        console.log("we have " + badAttachments.length + " bad attachments.");
        var titleElement = $(".bz_alias_short_desc_container:first").css("background-color",
            "olive").append($(this.createFixAllButton(badAttachments)));
        badAttachments.forEach(function (x) {
            this.addTextLink(x);
        });
    }

    // Take care of signature for Fedora bugzappers
    if (signatureFedoraString.length > 0) {
        // (or a form named "changeform")
        $("form:nth-child(2)", this.doc).submit(function () {
            var cmntText = $("#comment", this.doc);
            if ((signatureFedoraString.length > 0) &&
                    ($.trim(cmntText.text()).length > 0)) {
                cmntText.text($.trim(cmntText.text()) + signatureFedoraString);
            }
        });
    }

    this.setBranding();
    this.checkComments();
    this.buildButtons(topRow,bottomRow);

    var that = this;
    $("#component",this.doc).change(function (){
        that.changeOwner(that.maintCCAddr);
    });
}

var callback = function (doc) {
    var curPage = new bzPage(doc);
};

var options = {};
options.matches = [
     "https://bugzilla.redhat.com/show_bug.cgi",
     ];
jetpack.pageMods.add(callback, options);