add debug logs

src/index.js

@@ -136,8 +136,13 @@ async function getData(token, idPCE) {
 async function getActualDailyLoadData() {
   log('debug', 'Retrieve previous daily data')
   const result = await cozyClient.data.findAll('com.grandlyon.grdf.day')
-  log('debug', result)
-  return result ? result : []
+  if (result && result.length > 0) {
+    const formatedData = formateData(result)
+    log("debug", "FORMATED OLD DATA")
+    log("debug", formatedData)
+    return formatedData
+  }
+  return []
 }
 
 /**