Fix alert not popping up, SUNSET_TIME is not used in API route.

sunset-alarm

@@ -165,8 +165,7 @@ while true; do
     CURRENT_TIME=$(date +%s)
 
     # Check if we need to fetch new sunset time for a new day.
-    if [[ "$LAST_DATE" != "$TODAY" \
+    if [[ "$LAST_DATE" != "$TODAY" || "$SUNSET_EPOCH" == 0 ]]
-        || "$SUNSET_EPOCH" == 0 || -z "$SUNSET_TIME" ]]
     then
         LAST_DATE="$TODAY"
 
@@ -184,7 +183,7 @@ while true; do
                 continue
             }
 
-            if [[ -z "$SUNSET_TIME" ]]; then
+            if [[ "$SUNSET_EPOCH" == 0 ]]; then
                 echo "ERROR: Sunset time is still null. Retrying in 5 minutes." >&2
                 sleep 300
                 continue
@@ -208,11 +207,11 @@ while true; do
     MIDNIGHT=$(date -d "${TODAY} +1 day" +%s)
 
     # Alert while current time is within the window (from window start until midnight).
-    if [[ -n "$SUNSET_TIME" && "$SUNSET_EPOCH" -ge 0 \
+    if [[ "$SUNSET_EPOCH" -ge 0 \
         && "$CURRENT_TIME" -ge "$ALERT_WINDOW_START" \
         && "$CURRENT_TIME" -lt "$MIDNIGHT" ]]
     then
-        echo "Alert time has been reached for $SUNSET_TIME, show message."
+        echo "Alert time has been reached, show message."
         show_alert
         echo "Alert has been dismissed, sleeping for 5 minutes."
         sleep 290