// Auto Translate Item Title and Abstract
// @author windingwind, PhoenixHwang, northword
// link https://github.com/windingwind/zotero-tag/discussions/107
// 
// [Auto Translate Item Title and Abstract]
// Name : Auto Translate Item Title and Abstract
// Event : Create Item
// Operation : Script
// Data : JS code below
// Shortcut : None
// Menu Label: None


const Zotero = require("Zotero");
if (!Zotero.PDFTranslate) {
	return "[Action:Translate Title and Abstract] Translate for Zotero is not installed or disabled.";
}
if (!item) {
	return "[Action:Translate Title and Abstract] Target item is empty";
}

const skipLang = ["", "zh", "zh-CN"];
const lang = item.getField("language");

if (skipLang.includes(lang)) {
	return "[Action:Translate Title and Abstract] Skip due to language"
}

const title = item.getField("title");
const abstract = item.getField("abstractNote");

const titleResult = (await Zotero.PDFTranslate.api.translate(title)).result;
Zotero.PDFTranslate.data.ztoolkit.ExtraField.setExtraField(item, "titleTranslation", titleResult);

let abstractResult = "";
if (abstract) {
    abstractResult = (await Zotero.PDFTranslate.api.translate(abstract)).result;
    Zotero.PDFTranslate.data.ztoolkit.ExtraField.setExtraField(item, "abstractTranslation", abstractResult);
} else {
    const observerID = Zotero.Notifier.registerObserver({
        notify: async (event, type, ids, extraData) => {
            if (event === 'modify' && type === 'item' && ids.includes(item.id)) {
                const newAbstract = item.getField('abstractNote');
                if (newAbstract) {
                    abstractResult = (await Zotero.PDFTranslate.api.translate(newAbstract)).result;
                    Zotero.PDFTranslate.data.ztoolkit.ExtraField.setExtraField(item, "abstractTranslation", abstractResult);
                    Zotero.Notifier.unregisterObserver(observerID);
                }
            }
        }
    }, ['item']);
}

return `[Action:Translate Title and Abstract] successfully translate title ${title} to ${titleResult} and abstract.`;