From 10d4eb78d5c844383b5ec9cdb30dfecebfafb247 Mon Sep 17 00:00:00 2001
From: Adrian Caramaliu <ady624@gmail.com>
Date: Wed, 24 Jan 2024 09:36:47 -0500
Subject: [PATCH] Implement Link Up Interval

---
 lib/sources/librelinkup.js | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/lib/sources/librelinkup.js b/lib/sources/librelinkup.js
index e7151bd..d533634 100644
--- a/lib/sources/librelinkup.js
+++ b/lib/sources/librelinkup.js
@@ -100,7 +100,7 @@ function linkUpSource (opts, axios) {
       });
       // return Promise.resolve(auth.data.authTicket);
     },
-    dataFromSesssion (session, last_known) {
+    dataFromSession (session, last_known) {
       var two_days_ago = new Date( ).getTime( ) - (2 * 24 * 60 * 60 * 1000);
       var last_mills = Math.max(two_days_ago, (last_known && last_known.entries) ? last_known.entries.getTime( ) : two_days_ago);
       var last_glucose_at = new Date(last_mills);
@@ -155,12 +155,12 @@ function linkUpSource (opts, axios) {
       }
       // var last_glucose_at = new Date(last_known.sgvs.mills);
       var last_glucose_at = last_known.entries;
-      var missing = ((new Date( )).getTime( ) - last_glucose_at.getTime( )) / (1000 * 60 * 5)
+      var missing = ((new Date( )).getTime( ) - last_glucose_at.getTime( )) / (1000 * 60 * opts.linkUpInterval)
       if (missing > 1 && missing < 3) {
         console.log("READJUSTING SHOULD MAKE A DIFFERENCE MISSING", missing);
 
       }
-      var next_due = last_glucose_at.getTime( ) + (Math.ceil(missing) * 1000 * 60 * 5);
+      var next_due = last_glucose_at.getTime( ) + (Math.ceil(missing) * 1000 * 60 * opts.linkUpInterval);
       var buffer_lag = 18000; // 18 second buffer
       var jitter = Math.floor(Math.random( ) * 1000 * 18); // 18 second random
       var align_to = next_due + buffer_lag + jitter;
@@ -178,7 +178,7 @@ function linkUpSource (opts, axios) {
       authorize: impl.sessionFromAuth,
       // refresh: impl.refreshSession,
       delays: {
-        REFRESH_AFTER_SESSSION_DELAY: 3600000 - 600000,
+        REFRESH_AFTER_SESSION_DELAY: 3600000 - 600000,
         EXPIRE_SESSION_DELAY: 3600000
       }
     });
@@ -188,7 +188,7 @@ function linkUpSource (opts, axios) {
     builder.register_loop('LibreLinkUp', {
       tracker: tracker_for,
       frame: {
-        impl: impl.dataFromSesssion,
+        impl: impl.dataFromSession,
         align_schedule: impl.align_to_glucose,
         transform: impl.transformGlucose,
         backoff: {
@@ -200,7 +200,7 @@ function linkUpSource (opts, axios) {
         maxRetries: 2
       },
       // expect new data 5 minutes after last success
-      expected_data_interval_ms: 5 * 60 * 1000,
+      expected_data_interval_ms: opts.linkUpInterval * 60 * 1000,
       backoff: {
         // wait 2.5 minutes * 2^attempt
         interval_ms: 2.5 * 60 * 1000
@@ -220,6 +220,7 @@ linkUpSource.validate = function validate_inputs (input) {
     linkUpUsername: input.linkUpUsername,
     linkUpPassword: input.linkUpPassword,
     linkUpPatientId: input.linkUpPatientId,
+    linkUpInterval: input.linkUpInterval || 5,
     linkUpVersion: input.linkUpVersion || Defaults.Version,
     linkUpProduct: input.linkUpProduct || Defaults.Product,
     baseURL