/*jslint onevar: false, browser: true, evil: true, laxbreak: true, undef: true, nomen: true, eqeqeq: true, bitwise: true, maxerr: 100, immed: false, white: false, plusplus: false, regexp: false, undef: false */
/*global jQuery, $, jetpack */
// 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");

// http://en.wikipedia.org/wiki/HSL_color_space
// when only the value of S is changed
// stupido!!! the string is value in hex for each color
var RHColor = new Color(158, 41, 43); // RGB 158, 41, 43; HSL 359, 1, 39
var FedoraColor = new Color(0, 40, 103); // RGB 0, 40, 103; HSL 359, 1, 39
var RawhideColor = new Color(0, 119, 0); // or "green", or RGB 0, 119, 0, or HSL 120, 0, 23
var RHITColor = new Color(102, 0, 102); // RGB 102, 0, 102; HSL 300, 0, 20
var SalmonPink = new Color(255, 224, 176); // RGB 255, 224, 176; HSL 36, 2, 85
var ReporterColor = new Color(255, 255, 166); // RGB 255, 255, 166; HSL 60, 2, 83
var Luminosity = 0.85;
var Desaturated = 0.4;
var TriagedDistro = 13;
var NumberOfFrames = 7;
var XMLRPCurl = "https://bugzilla.redhat.com/xmlrpc.cgi";
var myConfig = jetpack.storage.simple;
var badMIMEArray = ["application/octet-stream","text/x-log","undefined"];

//==============================================================
// 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 abrtQueryURL = "https://bugzilla.redhat.com/buglist.cgi"+
    "?cmdtype=runnamed&namedcmd=all%20NEW%20abrt%20crashes";
//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 AbrtRE = new RegExp("^\\s*\\[abrt\\]");
var signalHandlerRE = new RegExp("^\\s*#[0-9]*\\s*<signal handler called>");
var frameNoRE = new RegExp("^\\s*#([0-9]*)\\s");

// 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 suspiciousComponents = [];

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;
    suspiciousComponents = response.suspiciousComponents;
    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);
};

// ============================================================================
// Color management methods
// originally from
// http://www.mjijackson.com/2008/02\
// /rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript

function Color(r,g,b) {
    if (r instanceof Array) {
        this.r = r[0];
        this.g = r[1];
        this.b = r[2];
    } else {
        this.r = r;
        this.g = g;
        this.b = b;
    }
}

Color.prototype.update = function(r,g,b) {
    this.r = r;
    this.g = g;
    this.b = b;
};

Color.prototype.hs = function(nStr) {
    if (Number(nStr) === 0) {
        return "00";
    } else if (nStr.length < 2) {
        return "0" + nStr;
    } else {
        return nStr;
    }
};

Color.prototype.toString = function() {
    var rH = Number(this.r.toFixed()).toString(16);
    var gH = Number(this.g.toFixed()).toString(16);
    var bH = Number(this.b.toFixed()).toString(16);
    return "#"+this.hs(rH)+this.hs(gH)+this.hs(bH);
};

/**
 * Converts an RGB color value to HSL. Conversion formula
 * adapted from http://en.wikipedia.org/wiki/HSL_color_space.
 * Assumes r, g, and b are contained in the set [0, 255] and
 * returns h, s, and l in the set [0, 1].
 *
 * @param   Number  r       The red color value
 * @param   Number  g       The green color value
 * @param   Number  b       The blue color value
 * @return  Array           The HSL representation
 */
Color.prototype.hsl = function (){
    var r = this.r / 255;
    var g = this.g / 255;
    var b = this.b / 255;
    var max = Math.max(r, g, b), min = Math.min(r, g, b);
    var h, s, l = (max + min) / 2;

    if(max === min){
        h = s = 0; // achromatic
    }else{
        var d = max - min;
        s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
        switch(max){
            case r: h = (g - b) / d + (g < b ? 6 : 0); break;
            case g: h = (b - r) / d + 2; break;
            case b: h = (r - g) / d + 4; break;
        }
        h /= 6;
    }

    return [h, s, l];
};

/**
 * Converts an HSL color value to RGB. Conversion formula
 * adapted from http://en.wikipedia.org/wiki/HSL_color_space.
 * Assumes h, s, and l are contained in the set [0, 1] and
 * returns r, g, and b in the set [0, 255].
 *
 * @param   Number  h       The hue
 * @param   Number  s       The saturation
 * @param   Number  l       The lightness
 * @return  Array           The RGB representation
 */
Color.prototype.hslToRgb = function (h, s, l){
    function hue2rgb(p, q, t){
        if (t < 0) {
            t += 1;
        }
        if (t > 1) {
            t -= 1;
        }
        if (t < 1/6) {
            return p + (q - p) * 6 * t;
        }
        if (t < 1/2) {
            return q;
        }
        if (t < 2/3) {
            return p + (q - p) * (2/3 - t) * 6;
        }
        return p;
    }

    var r, g, b;

    if(s === 0){
        r = g = b = l; // achromatic
    }else{
        var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
        var p = 2 * l - q;
        r = hue2rgb(p, q, h + 1/3);
        g = hue2rgb(p, q, h);
        b = hue2rgb(p, q, h - 1/3);
    }

    return [r * 255, g * 255, b * 255];
};

/**
 * Converts an RGB color value to HSV. Conversion formula
 * adapted from http://en.wikipedia.org/wiki/HSV_color_space.
 * Assumes r, g, and b are contained in the set [0, 255] and
 * returns h, s, and v in the set [0, 1].
 *
 * @param   Number  r       The red color value
 * @param   Number  g       The green color value
 * @param   Number  b       The blue color value
 * @return  Array           The HSV representation
 */
Color.prototype.hsv = function (){
    var r = this.r/255;
    var g = this.g/255;
    var b = this.b/255;
    var max = Math.max(r, g, b), min = Math.min(r, g, b);
    var h, s, v = max;

    var d = max - min;
    s = max === 0 ? 0 : d / max;

    if(max === min){
        h = 0; // achromatic
    }else{
        switch(max){
            case r: h = (g - b) / d + (g < b ? 6 : 0); break;
            case g: h = (b - r) / d + 2; break;
            case b: h = (r - g) / d + 4; break;
        }
        h /= 6;
    }

    return [h, s, v];
};

/**
 * Converts an HSV color value to RGB. Conversion formula
 * adapted from http://en.wikipedia.org/wiki/HSV_color_space.
 * Assumes h, s, and v are contained in the set [0, 1] and
 * returns r, g, and b in the set [0, 255].
 *
 * @param   Number  h       The hue
 * @param   Number  s       The saturation
 * @param   Number  v       The value
 * @return  Array           The RGB representation
 */
Color.prototype.hsvToRgb = function (h, s, v){
    var r, g, b;

    var i = Math.floor(h * 6);
    var f = h * 6 - i;
    var p = v * (1 - s);
    var q = v * (1 - f * s);
    var t = v * (1 - (1 - f) * s);

    switch(i % 6){
        case 0:
            r = v;
            g = t;
            b = p;
            break;
        case 1:
            r = q;
            g = v;
            b = p;
            break;
        case 2:
            r = p;
            g = v;
            b = t;
            break;
        case 3:
            r = p;
            g = q;
            b = v;
            break;
        case 4:
            r = t;
            g = p;
            b = v;
            break;
        case 5:
            r = v;
            g = p;
            b = q;
            break;
    }

    return [r * 255, g * 255, b * 255];
};

/**
 * Provide
 */
Color.prototype.lightColor = function() {
    var hslArray = this.hsl();
    var h = Number(hslArray[0]);
    var s = Number(hslArray[1]) * Desaturated;
    var l = Luminosity;
    var desA = this.hslToRgb(h, s, l);
    return new Color(desA[0],desA[1],desA[2]);
};


//====================================================================================
// bzPage's methods

/**
 * 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).val());
     return (new RegExp(str).test(kwd));
};

/**
 * Set additional keyword if it isn't there
 *
 * @param str string with the keyword
 * @return none
 */
bzPage.prototype.setKeyword = function (str) {
    var keywordInput = $('#keywords', this.doc);
    var kwd = $.trim(keywordInput.val());
    var strRE = new RegExp(str);
        if (!strRE.test(kwd)) {
            keywordInput.val(kwd ? kwd + ", " + str : str);
        }
};

/**
 * Get the current version of the Fedora release ... even if changed
 * meanwhile by bug triager.
 *
 * @return string (integer for released Fedora, float for RHEL, rawhide)
 */
bzPage.prototype.getVersion = function () {
    var verStr = $("#version option:selected:first", this.doc).text().toLowerCase();
    var verNo = 0;
    if (/rawhide/.test(verStr)) {
        verNo = 999;
    } else {
        verNo = Number(verStr);
    }
    return verNo;
};

/**
 * 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.toString());
        }
    });
};

/**
 * Is this bug a RHEL bug?
 *
 * @return Boolean true if it is a RHEL bug
 */
bzPage.prototype.isRHEL = function() {
    return (/Red Hat Enterprise Linux/).test(this.product);
};


bzPage.prototype.isTriaged = function() {
    if (this.version > 11) {
        return this.hasKeyword("Triaged");
    } else {
        return $("#bug_status", this.doc).val().toUpperCase() !== "NEW";
    }
};

/**
 * 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 = {};
    var TriagedColor = {};

    if (this.isRHEL()) {
        if (this.its.length > 0) {
            brandColor = RHITColor;
        } else {
            brandColor = RHColor;
        }
    } else if (new RegExp("Fedora").test(this.product)) {
        if (this.version == 999) {
            brandColor = RawhideColor;
        } else {
            brandColor = FedoraColor;
        }
    }

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

     // 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.toString()
          });
     }

    // Make it visible whether the bug has been triaged
    if (this.isTriaged()) {
        var triagedColor = brandColor.lightColor();
        $("#bz_field_status",this.doc).css({
            'background-image' : 'none',
            'background-color' : triagedColor.toString()
        });
    }

    // 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"});
    }

    // mark suspicious components
    // FIXME use https://bugzilla.redhat.com/show_bug.cgi?id=538818 for testing
    if (suspiciousComponents && isInList(this.component,suspiciousComponents)) {
        $("#bz_component_edit_container",this.doc).
            css({
                "background-color": "red",
                "background-image": "none"
            });
    }
};

/**
 */
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) {
    var soughtID = (manufacturerNo+","+cardNo).toUpperCase();
    var outList = PCI_ID_Array[soughtID];
    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 = [];

    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;
            } else {
                outStr = this.groupIDs(driverStr,cardIDStr);
                optionStr = "";
            }
        } else {
            outStr = "**** FULLSTRING: " + iLine;
        }
    } else {
    // Intel Corporation, NVIDIA
        cardIDArr = manuChipStrs.filter(function (el, ind, arr) {
            return new RegExp(el[0],"i").test(iLine);
        });
        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(new RegExp(cardIDArr[0],"i")));
        // 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.val();
    var attachedText = $.trim("card_"+outStr);
    if (oldWhiteboard) {
        attachedText += ", " + oldWhiteboard;
    }
    whiteboardInput.val(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 === undefined) { // missing optional argument
        doSubmit = false;
    }
    if (after === undefined) { // 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);
        });

    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;
    }

    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," "));
            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
 *
 * TODO make this method parametrized and use it for once for general search (as it is now)
 * a second time for the search for the same card_ID cards (button next to the Whiteboard field
 * when it matches card_ string).
 * FIXME search only in the same product version &version=11
 */
bzPage.prototype.queryInNewTab = function(text,component,product) {
    // Optional parameter
    if (product === undefined) {
        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+
        "&field0-0-2=status_whiteboard&type0-0-2=substring&value0-0-2="+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 = jetpack.selection.text;
    console.log("selection = " + text);
    if (!text) {
        text = jetpack.clipboard.get();
    }
    if (text) {
        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:contains('"+label+"'):first",selectElement);
    theOption.attr("selected","selected");
    var intEvent = $(this.doc).get(0).createEvent("HTMLEvents");
    intEvent.initEvent("change", true, true);
    selectElement.get(0).dispatchEvent(intEvent);
//    $("#"+id,this.doc).value(label).change();
};

/**
 * 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).val());
     return (new 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
     */
    if (!isInList(newAssignee, this.CCList)) {
        $("#newcc",this.doc).text(newAssignee);
    }
    if (newAssignee) {
        this.clickMouse($("#bz_assignee_edit_action",this.doc));
        $("#set_default_assignee",this.doc).removeAttr("checked");
        $("#assigned_to", this.doc).val(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.val().length > 0) {
        commentTextarea.val(commentTextarea.val() + "\n\n");
    }
    commentTextarea.val(commentTextarea.val() + 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;
};

/**
 * 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(data,textStatus) {
    if (--this.reqCounter <= 0) {
        setTimeout(document.location.reload,1000);
    }
};

/**
 * Create XML-RPC message for updateAttachMimeType procedure with given parameters.
 * Yes, I know this is very ugly, but in the current state of jetpack it is not possible
 * to import external jQuery modules, so I cannot use jquery.rpc as much as I would like to.
 *
 * @param login string with login
 * @param password string with password
 * @param attachID Number with the attachment ID#
 * @param mimeType string with MIME type, optional and defaults to text/plain
 * @return string with the XML-RPC message

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.createXMLRPCMessage = function(login,password,attachId,mimeType,email) {
    if (mimeType === undefined) {
        mimeType = "text/plain";
    }
    if (email === undefined) {
        email = false;
    }
    var emailStr = email ? "0" : "1";

    var msg = <methodCall>
    <methodName>bugzilla.updateAttachMimeType</methodName>
        <params>
            <param>
                <value><struct>
                    <member>
                        <name>attach_id</name>
                        <value><i4>{attachId}</i4></value>
                    </member>
                    <member>
                        <name>mime_type</name>
                        <value><string>{mimeType}</string></value>
                    </member>
                    <member>
                        <name>nomail</name>
                        <value><string>{emailStr}</string></value>
                    </member>
                </struct></value>
            </param>
            <param>
                <value><string>{login}</string></value>
            </param>
            <param>
                <value><string>{password}</string></value>
            </param>
        </params>
    </methodCall>;
    return msg.toXMLString();
};

/**
 * 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"
 */
bzPage.prototype.fixAttachById = function(id,type) {
    var msg = this.createXMLRPCMessage(this.login,this.password,id,type);
    var ret = $.ajax({
        type: "POST",
        url: XMLRPCurl,
        success: this.callBack,
        contentType: "text/xml",
        data: msg,
        processData: false,
        dataType: "xml"
    });

    this.reqCounter++;
};

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

    for(var i=0;i<list.length;i++) {
        tmpElem = list[i];
        this.fixAttachById(tmpElem[1]);
    }
};

/**
 * Create a button for fixing all bad attachments.
 *
 * @param list Array of all bad attachmentss
 * @return button fixing all bad Attachments
 */
bzPage.prototype.createFixAllButton = function (list) {
    var that  = this;
    var elem = this.doc.get(0).createElement("a");
    var jQelem = $(elem).attr({
        href:"",
        accesskey:"f"
    }).append("<b>F</b>ix all").click(function() {
        that.fixAllAttachments(list);
    });
    return jQelem.get(0);
};

/**
 * Add a link to the bad attachment for fixing it.
 *
 * @param <TR> DOM jQuery element with a bad attachment
 * @return none
 */
bzPage.prototype.addTextLink = function (row) {
    var that = this;
    $("td:last", row).append("<br/>").
        append("<a href=''>Text</a>").
        click(function (event) {
            that.fixAttachById(row[1],"text/plain");
    });
};

/**
 * 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.val().match(/^http.*/)) {
        var helpAElem = this.doc.get(0).createElement("a");
        wholeURL = inputBox.val();
        helpAElem.href = wholeURL;
        var paramsArr = helpAElem.search.replace(/^\?/,'').split('&');
        // get ID#
        var params = {}, s = [];
        paramsArr.forEach(function (par,idx,arr) {
            s = par.split('=');
            params[s[0]] = s[1];
        });
        if (params.id) {
            externalBugID = parseInt(params.id,10);
            inputBox.val(externalBugID);        
        }
        // get host and bugzillaName
        var bugzillaName = this.getBugzillaName(helpAElem.hostname);
        this.selectOption("external_id", bugzillaName);
    } else if (!isNaN(inputBox.val())) {
        externalBugID = parseInt(inputBox.val(),10);
        var bugzillaID = $("#external_id",this.doc).val();
        wholeURL = this.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 ((externalBugID > 0) || (refs.length > 2)) {
        this.addTextToComment(msgStrs.sentUpstreamString.replace("§§§",wholeURL));
        this.selectOption("bug_status", "CLOSED");
        this.selectOption("resolution", "UPSTREAM");
    } else {
        console.log("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) {
    var verNo = 1;
    
        if (addString.length >0) {
            this.addTextToComment(addString);
        }

        if (nextState === "CLOSED") {
            if (secondParameter === "UPSTREAM") {
                this.addClosingUpstream();
            } else if (secondParameter === "SOMERELEASE") {
                // for RAWHIDE close as RAWHIDE,
                // if active selection -> CURRENTRELEASE
                //     and put the release version to
                //     "Fixed in Version" textbox
                // otherwise -> NEXTRELEASE
                verNo = this.getVersion();
                this.selectOption("bug_status", nextState);
                var text = $.trim(jetpack.selection.text);
                if (text.length > 0) {
                    this.selectOption("resolution","CURRENTRELEASE");
                    $("#cf_fixed_in",this.doc).val(text);
                } else if (verNo === 999) {
                    this.selectOption("resolution","RAWHIDE");
                } else {
                    this.selectOption("resolution","NEXTRELEASE");
                }
            } 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") {
            // Now we lie completely, we just set keyword Triaged,
            // this is not just plain ASSIGNED, but
            // modified according to
            // https://fedoraproject.org/wiki/BugZappers/Meetings/Minutes-2009-Oct-27
            // and
            // http://meetbot.fedoraproject.org/fedora-meeting/2009-11-24\
            //    /fedora-meeting.2009-11-24-15.11.log.html
            // and
            // http://meetbot.fedoraproject.org/fedora-meeting/2009-11-24\
            //    /fedora-meeting.2009-11-24-15.11.log.html
            // for F13 and later, ASSIGNED is "add Triaged keyword" (as well)
            // for <F13 it is "add both" (ASSIGNED status and Triaged keyword)
            if (!isInList(this.maintCCAddr, this.CCList)) {
                $("#newcc",this.doc).text(this.maintCCAddr);
            }
            if ((!this.isRHELBug()) && (verNo < TriagedDistro)) {
                 this.selectOption("bug_status", nextState);             
            }
            this.setKeyword("Triaged");
         } 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");
         }
};

/**
 *
 */
bzPage.prototype.parseBacktrace = function (ret) {
    var splitArray = ret.split("\n");
    var i = 0, ii = splitArray.length;
    var outStr = "", curLine = "", numStr = "";
    var lineCounter = 0, endLineNo = 0;
    
    while ( i < ii ) {
        if (signalHandlerRE.test(splitArray[i])) {
            break;
        }
        i++;
    }
    
    if (i < ii) {
        lineCounter = parseInt(frameNoRE.exec(splitArray[i])[1],10);
        endLineNo = lineCounter + NumberOfFrames;
        curLine = splitArray[i];
        while ((lineCounter < endLineNo) &&
                ($.trim(curLine).length >0) && (i < ii)) {
            outStr += curLine + '\n';
            numStr = frameNoRE.exec(curLine);
            if (numStr) {
                lineCounter = parseInt(numStr[1],10);
            }
            i++;
            curLine = splitArray[i];
        }
    }
    return outStr;
}

/**
 * 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);
        }
    // FIXME Get compiz bugs as well
    if ((chipIDsGroupings.length >0) &&
            this.maintCCAddr === "xgl-maint@redhat.com") {
        // Add find chip magic button
        var whiteboard_string = $("#status_whiteboard", this.doc).val();
        if (isInList("card_",whiteboard_string)) {
            this.fillInChipMagic();
        }
    }

    // Add setting default assignee
    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);
    var that = this;
    this.originalButton = $("#commit", this.doc);
    var loginArr = $("#header ul:first li:last", this.doc).text().split("\n");
    this.login = $.trim(loginArr[loginArr.length-1]);
    this.password = "";
    if (myConfig.BZpassword) {
        this.password = myConfig.BZpassword;
     } else {
        this.password = this.doc.get(0).defaultView.prompt("Enter your Bugzilla password","");
        myConfig.BZpassword = this.password;
     }

    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   = this.getVersion();
    this.its       = $.trim($("#cf_issuetracker", this.doc).val());
    this.CCList    = $.makeArray($("#cc", this.doc).val());
    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 (isInList(att[2],badMIMEArray));
    });

    if (badAttachments.length > 0) {
        var titleElement = $(".bz_alias_short_desc_container:first",this.doc).
            css("background-color","olive").
            append($(this.createFixAllButton(badAttachments)));
        badAttachments.forEach(function (x) {
            that.addTextLink(x);
        });
    }

    // Dig out backtrace
    this.btSnippet = "";
    
    var bugTitle = $("#short_desc_nonedit_display", this.doc).text();
    if (AbrtRE.test(bugTitle)) {
        $(".bz_alias_short_desc_container:first", this.doc).
            append("\u00A0<a href=''>Abrt bugs</a>").click(function() {
                that.doc.location = abrtQueryURL;
            });
        if (!this.hasKeyword("Triaged")) {
            var btAttachments = this.attachments.filter(function (att,idx,arr) {
                return (/backtrace/.test(att[0]));
            });
            // TODO we need to go through all backtrace attachments, but
            // just the first one will do for now, we would need to do async parsing
            that = this;
            btAttachments.forEach(function (x) {
                attURL = "https://bugzilla.redhat.com/attachment.cgi?id=" + x[1];
                console.log("attURL = " + attURL);
                console.log("btSnippet = " + that.btSnippet);
                if (!that.btSnippet) {
                    var btRaw = $.get(attURL,function (ret) {
                        that.btSnippet = that.parseBacktrace(ret);
                        console.log("btSnippet = " + that.btSnippet.length);
                        if (that.btSnippet) {
                            that.addTextToComment(that.btSnippet);
                        }                    
                    });
                }
            });
        }
    }

    // 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);

    // FIXME this doesn't work as it should.
    // Shouldn't we use .val() again instead of .text()?
    $("#component",this.doc).change(function (){
        that.component = $("#component option:selected:first", this.doc).text();
        that.changeOwner(filterByRegexp(defAssigneeList, that.component).
            toLowerCase());
    });
}

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);