// Adjustendnotenumbers.jsx
// Increases or decreases numbers of endnotes
// Presuppositions: the endnote numbers in the text must have the
// character style chosen in the dialog displayed at starting the script.
// The Endnote text must have the paragraph style chosen in
// the dialog displayed at starting the script.
// The endnote separator must be the character specified in 
// the dialog displayed at starting the script and must not 
// be used in paragraphs in endnotes that have no endnote number.
// Made by Teus de Jong; last version August 29, 2005
// Made compatible with CS3 April 2007
// Updated by Anders Skogheim Liane july 2009 // Thanks Anders!!
if (app.documents.length == 0)
	errorExit('No documents are open');
var doendnotes = true;
var startnumber, endnumber, increase;
endnotereferencestyle = 'Endnote Reference';
endnotetextstyle = 'Endnote Text';
endnoteseparator = '^t'; // tab
appversion = Number(app.version.substr(0,1));
app.scriptPreferences.version = appversion;
if (!doDisplayDialog()) {exit()}
resetFind();
notes = findNotes(endnotereferencestyle);
if (notes.length == 0)
	errorExit('No note references found');
for (i = notes.length-1; i > -1; i--){
	str = notes[i].contents;
	newstr = increasenumber(str);
	if (newstr != str){
		notes[i].contents = newstr;
	}
}
resetFind();
if (!doendnotes){exit()}
notetexts = findNoteTexts(endnotetextstyle);
for (t = notetexts.length -1; t > -1;t--){
	for (i = notetexts[t].paragraphs.length-1; i > -1; i--){
		str = notetexts[t].paragraphs[i].contents;
		if (str.indexOf(endnoteseparator) == -1) {continue}
		try{
			str = notetexts[t].paragraphs[i].words[0].contents;
			newstr = increasenumber(str);
			if (newstr != str){
				notetexts[t].paragraphs[i].words[0].contents = newstr;
			}
		}
		catch (e) {}
	}
}
resetFind();

function increasenumber(s){

	var x;
	var havepoint = false;
	// we check if there is a point at the end of the note number
	if (s.indexOf('.') == s.length - 1){
		s = s.split('.')[0];
		havepoint = true;
	}
	x = Number(s);
	if ((x >= startnumber) && (x <= endnumber)){
		x = x + increase;
	}
	s = x.toString();
	if (havepoint){
		s = s+'.';
	}
	return(s);
}

function doDisplayDialog(){
	with (theDialog = app.dialogs.add({name:'Increase, decrease endnote numbers'})){

		//Add a dialog column.
		DialogColumn1 = dialogColumns.add();	
		with (DialogColumn1){
			staticTexts.add({staticLabel:'Start number:'});
			staticTexts.add({staticLabel:'End Number:'});
			staticTexts.add({staticLabel:'Increase with:'});
			staticTexts.add({staticLabel:'Endnote reference:'});
			staticTexts.add({staticLabel:'Endnote text:'});
			staticTexts.add({staticLabel:'Handle numbers in notes:'});
			staticTexts.add({staticLabel:'Endnote separator:'});
		}
		DialogColumn2 = dialogColumns.add();	
		with (DialogColumn2){
			with (editstartnumber = integerEditboxes.add()){
					editValue = 1;
			}
			with (editendnumber = integerEditboxes.add()){
					editValue = 100;
			}
			with (editincrease = integerEditboxes.add()){
					editValue = 2;
			}
			with (endnotereferencebox = dropdowns.add()){
				stringList = app.activeDocument.characterStyles.everyItem().name;
				for (i = 0; i < stringList.length; i++){
					if (stringList[i] == endnotereferencestyle){
						selectedIndex = i;
						break;
					}
				}
			}
			with (endnotetextbox = dropdowns.add()){
				stringList = app.activeDocument.paragraphStyles.everyItem().name;
				for (i = 0; i < stringList.length; i++){
					if (stringList[i] == endnotetextstyle){
						selectedIndex = i;
						break;
					}
				}
			}
			with (doends = checkboxControls.add()){
				checkedState = true;
			}
			with (endnotesepbox = textEditboxes.add()){
					editContents = endnoteseparator;
			}
		}
		if (theDialog.show()) {
			startnumber = editstartnumber.editValue;
			endnumber = editendnumber.editValue;
			increase = editincrease.editValue;
			endnotereferencestyle = endnotereferencebox.stringList[endnotereferencebox.selectedIndex];
			endnotetextstyle = endnotetextbox.stringList[endnotetextbox.selectedIndex];
			doendnotes = doends.checkedState;
			endnoteseparator = endnotesepbox.editContents;
			switch (endnoteseparator){
				case '^t':
				case '\t': {endnoteseparator = '\u0009'; break}
				case '^>': {endnoteseparator = '\u2002'; break;}
				case '^m': {endnoteseparator = '\u2003'; break;}
				case '^s': {endnoteseparator = '\u00A0'; break;}
			}
			theDialog.destroy;
			return(true);
		}
		else{

			theDialog.destroy();
			return(false);
		}
	}
}

function findNotes(x){
	resetFind();
	var u = undefined;
	if (appversion == 4)
		return(app.activeDocument.search(u, u, u, u, {appliedCharacterStyle: x}));
	else {
		app.findTextPreferences.appliedCharacterStyle = x;
		return(app.activeDocument.findText());
	}
}

function findNoteTexts(x){
	resetFind();
	var u = undefined;
	if (appversion == 4)
		return(app.activeDocument.search(u, u, u, u, {appliedParagraphStyle: x}));
	else {
		app.findTextPreferences.appliedParagraphStyle = x;
		return(app.activeDocument.findText());
	}
}

function resetFind(){
	if (appversion == 4)
		app.findPreferences = null;
	else
		app.findTextPreferences = null;
}