script for open and update all link with recursion

@laurence roussel12011930,

Give this a try...It's not clear to me on the on the order you wanted, so I took my best guess.

Note: I have not fully tested with your function OpenAndUpdate(doc).

// extendScript

var defaultFolder = "/M/infographie/Dossier Phykidis/base de donnée produit/pkd/GAMMES/neutre/403 E"
var topFolder = Folder(defaultFolder).selectDlg("Select the top level folder.");
if (!topFolder) exit();
var fileandfolderArray = scanSubFolders(topFolder,/\.(indd)$/i);

var fileList = fileandfolderArray[0];
app.scriptPreferences.userInteractionLevel = UserInteractionLevels.interactWithAll


// ici on boucle sur tous les fichiers. C'est normalement que les fichiers etiquette
for (var i = 0; i < fileList.length; i++) {
  if (fileList[i] instanceof File && fileList[i].name.match("\\b" + "A.indd" + "\\b")) {
  OpenAndUpdate(fileList[i])
  }
  if (fileList[i] instanceof File && fileList[i].name.match("\\b" + "B.indd" + "\\b") && app.documents[0].name.match("\\b" + "A.indd" + "\\b")) {
  OpenAndUpdate(fileList[i])
  }
  if (fileList[i] instanceof File && fileList[i].name.match("\\b" + "C.indd" + "\\b") && app.documents[0].name.match("\\b" + "B.indd" + "\\b")) {
  OpenAndUpdate(fileList[i])
  } 
}
app.documents.everyItem().save();
app.documents.everyItem().close();
alert("Done updating and saving files!")
  

function scanSubFolders(tFolder, scanMask){
    var subFolders = new Array();
    var allFiles = new Array();
    subFolders[0] = tFolder;
    for (var j = 0; j < subFolders.length; j++){    
        var procFiles = subFolders[j].getFiles();
        for (var i = 0; i< procFiles.length; i++){
            if (procFiles[i] instanceof File ){
                if(scanMask == undefined) allFiles.push(procFiles[i]);
                if (procFiles[i].fullName.search(scanMask) != -1) allFiles.push(procFiles[i]);
        }else if (procFiles[i] instanceof Folder){
            subFolders.push(procFiles[i]);
            scanSubFolders(procFiles[i], scanMask);
         }
      }
   }
   return [allFiles,subFolders];
};

function OpenAndUpdate(doc){
	app.scriptPreferences.userInteractionLevel = UserInteractionLevels.neverInteract;
	app.open(doc);
	internal_link = app.activeDocument.links;

	for(var j = 0; j < internal_link.length; j++){
		// On vérifie que le lien est OK :
		if (internal_link[j].status == LinkStatus.LINK_MISSING){
			var folderPath = (Folder.selectDialog(internal_link[j].filePath))
			var imglist = Folder(folderPath).getFiles(internal_link[j].name);
			if (imglist.length == 1){
				internal_link[j].relink(imglist[0]);
			}
		}

		// Si le lien est ok. On l'ouvre pour vérifier ses propres lien. La recursivité a lieu ici:
		if (internal_link[i].linkType == 'indd') { // Je ne veux ouvrir que les fichier indd
			OpenAndUpdate(internal_link[i].File) // pas sur. peut etre Filepath à la place de File. cf la doc: https://www.indesignjs.de/extendscriptAPI/indesign-latest/#Link.html
		}
	}
	app.activeDocument.links.everyItem().update();
	// app.activeDocument.save();
	// app.activeDocument.close();
   return 0; // fin de la fonction. Elle ne renvoie rien normalement
};

Regards,

Mike