Subrise/Sunset widget: check location permission

main/sunrise-sunset-widget.lua

@@ -11,6 +11,14 @@ local fmt = require "fmt"
 
 function on_alarm()
     local location = system:location()
+
+    if location == nil then
+        return
+    elseif location == "permission_error" then
+        ui:show_text("No location permission")
+        return
+    end
+
     local url = "https://api.sunrise-sunset.org/json?lat=" .. location[1] .. "&lng=" .. location[2] .. "&formatted=0"
 
     http:get(url)