From f1a2f65bf12e8b935775dba631cacb508f53ca95 Mon Sep 17 00:00:00 2001
From: Chris Cummer <chriscummer@me.com>
Date: Wed, 18 Apr 2018 10:34:59 -0700
Subject: [PATCH] Handle cases in which there is no weather data

---
 weather/display.go | 6 +++++-
 weather/widget.go  | 8 ++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/weather/display.go b/weather/display.go
index 71db5667..47df976b 100644
--- a/weather/display.go
+++ b/weather/display.go
@@ -12,9 +12,13 @@ func (widget *Widget) display() {
 	widget.View.Clear()
 
 	cityData := widget.currentData()
+	if cityData == nil {
+		fmt.Fprintf(widget.View, "%s", " Weather data is unavailable (1)")
+		return
+	}
 
 	if len(cityData.Weather) == 0 {
-		fmt.Fprintf(widget.View, "%s", " Weather data is unavailable.")
+		fmt.Fprintf(widget.View, "%s", " Weather data is unavailable (2)")
 		return
 	}
 
diff --git a/weather/widget.go b/weather/widget.go
index bf7f55c9..40840d66 100644
--- a/weather/widget.go
+++ b/weather/widget.go
@@ -91,6 +91,14 @@ func (widget *Widget) Prev() {
 /* -------------------- Unexported Functions -------------------- */
 
 func (widget *Widget) currentData() *owm.CurrentWeatherData {
+	if len(widget.Data) == 0 {
+		return nil
+	}
+
+	if widget.Idx < 0 || widget.Idx >= len(widget.Data) {
+		return nil
+	}
+
 	return widget.Data[widget.Idx]
 }