From 3190b45db301ad5f6ce4dc2c68fdd0dbcb2a90e7 Mon Sep 17 00:00:00 2001
From: Yegor Vialov <vyalov.egor@gmail.com>
Date: Wed, 14 Nov 2018 13:38:02 +0200
Subject: [PATCH] Resolves #176 History can be requested only once per 30
 seconds

---
 lib/entity_class/entity.class.dart            |  4 ---
 .../history_chart/entity_history.dart         | 30 ++++++++++++-------
 2 files changed, 19 insertions(+), 15 deletions(-)

diff --git a/lib/entity_class/entity.class.dart b/lib/entity_class/entity.class.dart
index 79b4680..845c71e 100644
--- a/lib/entity_class/entity.class.dart
+++ b/lib/entity_class/entity.class.dart
@@ -56,10 +56,6 @@ class Entity {
     domain = rawData["entity_id"].split(".")[0];
     entityId = rawData["entity_id"];
     state = rawData["state"];
-    if (domain == "sun") {
-      state = "iuwfhiwushf iwuwfhiuwefh dsjhfkjsdfnksdj nfksdjfn ksdjfn kdsjfndskj sdk fhksbsk jvfk jvsfkj  sfkjvsfkvdsjk bvsfk svfjk";
-      attributes["friendly_name"] = "Black hole sun, wan't you come, wan't you come";
-    }
     assumedState = state;
     _lastUpdated = DateTime.tryParse(rawData["last_updated"]);
   }
diff --git a/lib/entity_widgets/history_chart/entity_history.dart b/lib/entity_widgets/history_chart/entity_history.dart
index dfafeeb..0a6bfb1 100644
--- a/lib/entity_widgets/history_chart/entity_history.dart
+++ b/lib/entity_widgets/history_chart/entity_history.dart
@@ -31,6 +31,7 @@ class _EntityHistoryWidgetState extends State<EntityHistoryWidget> {
 
   List _history;
   bool _needToUpdateHistory;
+  DateTime _historyLastUpdated;
 
   @override
   void initState() {
@@ -39,18 +40,25 @@ class _EntityHistoryWidgetState extends State<EntityHistoryWidget> {
   }
 
   void _loadHistory(HomeAssistant ha, String entityId) {
-    ha.getHistory(entityId).then((history){
-      setState(() {
-        _history = history.isNotEmpty ? history[0] : [];
-        _needToUpdateHistory = false;
+    DateTime now = DateTime.now();
+    if (_historyLastUpdated != null) {
+      TheLogger.debug("History was updated ${now.difference(_historyLastUpdated).inSeconds} seconds ago");
+    }
+    if (_historyLastUpdated == null || now.difference(_historyLastUpdated).inSeconds > 30) {
+      _historyLastUpdated = now;
+      ha.getHistory(entityId).then((history){
+        setState(() {
+          _history = history.isNotEmpty ? history[0] : [];
+          _needToUpdateHistory = false;
+        });
+      }).catchError((e) {
+        TheLogger.error("Error loading $entityId history: $e");
+        setState(() {
+          _history = [];
+          _needToUpdateHistory = false;
+        });
       });
-    }).catchError((e) {
-      TheLogger.error("Error loading $entityId history: $e");
-      setState(() {
-        _history = [];
-        _needToUpdateHistory = false;
-      });
-    });
+    }
   }
 
   @override