improved many thing

controllers/send.js

@@ -0,0 +1,102 @@
+
+const ExcelJS = require('exceljs');
+const moment = require('moment');
+const fs = require('fs');
+const { MessageMedia } = require('whatsapp-web.js');
+const { cleanNumber } = require('./handle')
+/**
+ * Enviamos archivos multimedia a nuestro cliente
+ * @param {*} number 
+ * @param {*} fileName 
+ */
+
+const sendMedia = (client, number, fileName) => {
+    number = cleanNumber(number)
+    const media = MessageMedia.fromFilePath(`${__dirname}/../mediaSend/${fileName}`);
+    client.sendMessage(number, media);
+}
+
+/**
+ * Enviamos un mensaje simple (texto) a nuestro cliente
+ * @param {*} number 
+ */
+const sendMessage = (client, number = null, text = null, trigger = null) => {
+    number = cleanNumber(number)
+    const message = text
+    client.sendMessage(number, message);
+    readChat(number, message, trigger)
+    console.log(`⚡⚡⚡ Enviando mensajes....`);
+}
+
+/**
+ * Opte
+ */
+const lastTrigger = (number) => new Promise((resolve, reject) => {
+    number = cleanNumber(number)
+    const pathExcel = `${__dirname}/../chats/${number}.xlsx`;
+    const workbook = new ExcelJS.Workbook();
+    if(fs.existsSync(pathExcel))
+    {
+        workbook.xlsx.readFile(pathExcel)
+        .then(() => {
+            const worksheet = workbook.getWorksheet(1);
+            const lastRow = worksheet.lastRow;
+            const getRowPrevStep = worksheet.getRow(lastRow.number);
+            const lastStep = getRowPrevStep.getCell('C').value;
+            resolve(lastStep)
+        });
+    }else{
+        resolve(null)
+    }
+})
+
+/**
+ * Guardar historial de conversacion
+ * @param {*} number 
+ * @param {*} message 
+ */
+ const readChat = async (number, message, trigger = null) => {
+    const pathExcel = `${__dirname}/../chats/${number}.xlsx`;
+    const workbook = new ExcelJS.Workbook();
+    const today = moment().format('DD-MM-YYYY hh:mm')
+
+    if (fs.existsSync(pathExcel)) {
+        /**
+         * Si existe el archivo de conversacion lo actualizamos
+         */
+        const workbook = new ExcelJS.Workbook();
+        workbook.xlsx.readFile(pathExcel)
+            .then(() => {
+                const worksheet = workbook.getWorksheet(1);
+                const lastRow = worksheet.lastRow;
+                var getRowInsert = worksheet.getRow(++(lastRow.number));
+                getRowInsert.getCell('A').value = today;
+                getRowInsert.getCell('B').value = message;
+                getRowInsert.getCell('C').value = trigger;
+                getRowInsert.commit();
+                workbook.xlsx.writeFile(pathExcel);
+            });
+
+    } else {
+        /**
+         * NO existe el archivo de conversacion lo creamos
+         */
+        const worksheet = workbook.addWorksheet('Chats');
+        worksheet.columns = [
+            { header: 'Fecha', key: 'number_customer' },
+            { header: 'Mensajes', key: 'message' },
+            { header: 'Disparador', key: 'trigger' }
+        ];
+        worksheet.addRow([today, message, trigger]);
+        workbook.xlsx.writeFile(pathExcel)
+            .then(() => {
+
+                console.log("saved");
+            })
+            .catch((err) => {
+                console.log("err", err);
+            });
+    }
+}
+
+module.exports = { sendMessage, sendMedia, lastTrigger }