termux-sms-inbox: Use strings for listed sms types

Author: fornwall

scripts/termux-sms-inbox

@@ -3,19 +3,21 @@ set -u
 
 PARAM_LIMIT=10
 PARAM_OFFSET=0
-PARAM_TYPE=1
+PARAM_TYPE=inbox
 PARAMS=""
 
 SCRIPTNAME=termux-sms-inbox
+
+SUPPORTED_TYPES="all|inbox|sent|draft|outbox"
 show_usage () {
     echo "Usage: termux-sms-inbox [-d] [-l limit] [-n] [-o offset] [-t type]"
-    echo "List received SMS messages."
+    echo "List SMS messages."
     echo "  -d         show dates when messages were created"
     echo "  -l limit   offset in sms list (default: $PARAM_LIMIT)"
     echo "  -n         show phone numbers"
     echo "  -o offset  offset in sms list (default: $PARAM_OFFSET)"
-    echo "  -t type    the type of messages to return (default: $PARAM_TYPE)"
-    echo "             0:ALL, 1:INBOX, 2:SENT, 3:DRAFT, 4:OUTBOX "
+    echo "  -t type    the type of messages to list (default: $PARAM_TYPE):"
+    echo "             $SUPPORTED_TYPES"
     exit 0
 }
 
@@ -35,5 +37,14 @@ shift $(($OPTIND-1))
 
 if [ $# != 0 ]; then echo "$SCRIPTNAME: too many arguments"; exit 1; fi
 
+case "$PARAM_TYPE" in
+	all) PARAM_TYPE=0 ;;
+	inbox) PARAM_TYPE=1 ;;
+	sent) PARAM_TYPE=2 ;;
+	draft) PARAM_TYPE=3 ;;
+	outbox) PARAM_TYPE=4 ;;
+	*) echo "$SCRIPTNAME: Unsupported type '$PARAM_TYPE'. Use one of: $SUPPORTED_TYPES"; exit 1 ;;
+esac
+
 PARAMS="$PARAMS --ei offset $PARAM_OFFSET --ei limit $PARAM_LIMIT --ei type $PARAM_TYPE"
 /data/data/com.termux/files/usr/libexec/termux-api SmsInbox $PARAMS