* (Apollon77) Implement Service triggers to use any value to trigger or stringified JSON to call with fields

lib/tools.js

@@ -0,0 +1,92 @@
+const axios = require("axios");
+
+/**
+ * Tests whether the given variable is a real object and not an Array
+ * @param {any} it The variable to test
+ * @returns {it is Record<string, any>}
+ */
+function isObject(it) {
+    // This is necessary because:
+    // typeof null === 'object'
+    // typeof [] === 'object'
+    // [] instanceof Object === true
+    return Object.prototype.toString.call(it) === "[object Object]";
+}
+
+/**
+ * Tests whether the given variable is really an Array
+ * @param {any} it The variable to test
+ * @returns {it is any[]}
+ */
+function isArray(it) {
+    if (Array.isArray != null)
+        return Array.isArray(it);
+    return Object.prototype.toString.call(it) === "[object Array]";
+}
+
+/**
+ * Choose the right tranalation API
+ * @param {string} text The text to translate
+ * @param {string} targetLang The target languate
+ * @param {string} yandex api key
+ * @returns {Promise<string>}
+ */
+async function translateText(text, targetLang, yandex) {
+    if (targetLang === "en") {
+        return text;
+    }
+    if (yandex) {
+        return await translateYandex(text, targetLang, yandex);
+    } else {
+        return await translateGoogle(text, targetLang);
+    }
+}
+
+/**
+ * Translates text with Yandex API
+ * @param {string} text The text to translate
+ * @param {string} targetLang The target languate
+ * @param {string} yandex api key
+ * @returns {Promise<string>}
+ */
+async function translateYandex(text, targetLang, yandex) {
+    if (targetLang === "zh-cn") {
+        targetLang = "zh";
+    }
+    try {
+        const url = `https://translate.yandex.net/api/v1.5/tr.json/translate?key=${yandex}&text=${encodeURIComponent(text)}&lang=en-${targetLang}`;
+        const response = await axios({url, timeout: 15000});
+        if (response.data && response.data['text']) {
+            return response.data['text'][0];
+        }
+        throw new Error("Invalid response for translate request");
+    } catch (e) {
+        throw new Error(`Could not translate to "${targetLang}": ${e}`);
+    }
+}
+
+/**
+ * Translates text with Google API
+ * @param {string} text The text to translate
+ * @param {string} targetLang The target languate
+ * @returns {Promise<string>}
+ */
+async function translateGoogle(text, targetLang) {
+    try {
+        const url = `http://translate.googleapis.com/translate_a/single?client=gtx&sl=en&tl=${targetLang}&dt=t&q=${encodeURIComponent(text)}&ie=UTF-8&oe=UTF-8`;
+        const response = await axios({url, timeout: 15000});
+        if (isArray(response.data)) {
+            // we got a valid response
+            return response.data[0][0][0];
+        }
+        throw new Error("Invalid response for translate request");
+    } catch (e) {
+        throw new Error(`Could not translate to "${targetLang}": ${e}`);
+    }
+}
+
+module.exports = {
+    isArray,
+    isObject,
+    translateText
+};