Square access token automatically refreshes before expiration.

middleware.js

@@ -2,6 +2,8 @@ const Merchant = require("./models/merchant.js")
 
 const helper = require("./controllers/helper.js");
 
+const axios = require("axios");
+
 module.exports = {
     verifySession: function(req, res, next){
         if(req.session.user === undefined) {
@@ -10,11 +12,12 @@ module.exports = {
         }
     
         Merchant.findOne({"session.sessionId": req.session.user})
-            .then((merchant)=>{
+            .then(async (merchant)=>{
                 if(merchant === null){
-                    throw "no merchant";
+                    throw "login";
                 }
     
+                //Check if session is out of date
                 if(merchant.session.date < new Date()){
                     let newExpiration = new Date();
                     newExpiration.setDate(newExpiration.getDate() + 90);
@@ -22,10 +25,38 @@ module.exports = {
                     merchant.session.sessionId = helper.generateId(25);
                     merchant.session.date = newExpiration;
                     merchant.save();
-                    req.session.error = "PLEASE LOG IN";
-                    return res.redirect("/login");
+                    throw "login";
                 }
-    
+
+                //Check if email has not been verified
+                if(merchant.status.includes("unverified")){
+                    req.session.error = "PLEASE VERIFY YOUR EMAIL ADDRESS";
+                    return res.redirect(`/verify/email/${merchant._id}`);
+                }
+
+                //Check for suspended account
+                if(merchant.status.includes("suspended")){
+                    req.session.error = "ACCOUNT SUSPENDED. PLEASE CONTACT SUPPORT IF THIS IS IN ERROR";
+                    return res.redirect("/");
+                }
+
+                //Check for out of date access token
+                let cutoff = new Date();
+                cutoff.setDate(cutoff.getDate() + 1);
+                if(merchant.square.expires < cutoff){
+                    let data = await axios.post(`${process.env.SQUARE_ADDRESS}/oauth2/token`, {
+                        client_id: process.env.SUBLINE_SQUARE_APPID,
+                        client_secret: process.env.SUBLINE_SQUARE_APPSECRET,
+                        grant_type: "refresh_token",
+                        refresh_token: merchant.square.refreshToken
+                    });
+
+                    merchant.square.accessToken = data.data.access_token;
+                    merchant.square.expires = new Date(data.data.expires_at);
+
+                    await merchant.save();
+                }
+
                 res.locals.merchant = merchant;
                 return next();
             })