Update tags w/ predef tags stored in iCloud

script

const FILEPATH = "/predefinedTagsCloud/predefinedTags.json";

// read predefined tags from JSON file in iCloud
let fmCloud = FileManager.createCloud();
let content = fmCloud.readString(FILEPATH);
if (content.length == 0) {
  content = JSON.stringify([]);
  fmCloud.writeString(FILEPATH, content);
}
let baseTags = JSON.parse(content);


let currentTags = draft.tags;
let allTags = baseTags.concat(currentTags).concat(Draft.recentTags());
let selectableTags = Array.from(new Set(allTags));


let nextAction= "assign";
do {
  switch (nextAction) {
    case "assign":
      nextAction = assignTags();
      break;
    case "predef":
      nextAction = managePredefTags();
      break;
  }
} while (nextAction != "Finish");



function assignTags() {
  let p = Prompt.create();
  p.title = "Assign tags to draft";
  p.addSelect("tags","", selectableTags, currentTags, true);
  for (let i = 0; i < 5; i++) p.addTextField("additionalTag" + i, "Other", "", {"placeholder": "one tag"});
  p.addButton("Update", "update");
  p.addButton("→Manage predefined tag mode", "predef");

  let nextAction = "Finish";
  let cancelled = !p.show();
  switch (true) {
    case (p.buttonPressed == "update") : {
      let selectedTags = p.fieldValues["tags"];

      for (let tag of currentTags) {
        draft.removeTag(tag);
      }
      for (let tag of selectedTags) {
        draft.addTag(tag);
      }

      for (let i = 0; i < 5; i++) if (p.fieldValues["additionalTag" + i] != "") draft.addTag(p.fieldValues["additionalTag" + i]);

      draft.update();
    
      break;
    }      
    case (p.buttonPressed == "predef") : {
      nextAction = "predef";
      break;
    }
  }
  
  return nextAction;
}



function managePredefTags() {
  let p = Prompt.create();
  p.title = "Manage predefined tags";
  selectableTags.forEach(tag => p.addSwitch(tag, tag, baseTags.includes(tag)));
  for (let i = 0; i < 5; i++) p.addTextField("additionalTag" + i, "Other", "", {"placeholder": "one tag"});
  p.addButton("Save", "save");
  p.addButton("→Assign tags to draft mode", "assign");
 
  let nextAction = "Finish";
  let cancelled = !p.show();
  switch (true) {
    case (p.buttonPressed == "save") : {
      let selectedTags = selectableTags.filter(tag => p.fieldValues[tag]);

     let tagsToSave = selectedTags;
     for (let i = 0; i < 5; i++) if (p.fieldValues["additionalTag" + i] != "") tagsToSave.push(p.fieldValues["additionalTag" + i]);
     let lowertagsToSave = tagsToSave.map(tag => tag.toLowerCase());
     content = Array.from(new Set(lowertagsToSave));

     // write predefined tags to JSON file in iCloud
     fmCloud.writeString(FILEPATH, JSON.stringify(content));

      break;
    }
    case (p.buttonPressed == "assign") : {
      nextAction = "assign";
      break;
    }
  }
   
  return nextAction;
}