#!/bin/bash

print_usage () {
    echo "usage: $0 [MODEM INDEX] [all|ucs2|gsm7|data] [NUMBER]"
    echo "   if no [NUMBER] is given, a dummy one will be used and no SMS will be sent"
}

test () {
    TITLE=$1
    TEXT=$2
    DATAFILE=$3

    echo
    echo
    echo "============================================================="
    echo "$TITLE"
    echo "============================================================="
    echo

    # Build SMS properties
    PROPERTIES="number='$NUMBER'"
    if [ "x$TEXT" != "x" ]; then
        PROPERTIES=$PROPERTIES",text='$TEXT'"
    fi

    # Create the SMS first, get DBus path returned
    echo "Creating SMS..."
    CMD="mmcli -m $MODEM_INDEX --messaging-create-sms=\"$PROPERTIES\""
    if [ "x$DATAFILE" != "x" ]; then
        CMD=$CMD" --messaging-create-sms-with-data=$DATAFILE"
    fi

    echo "$> $CMD"
    OUT=`eval $CMD`
    SMS_PATH=`echo "$OUT" | grep "/org/freedesktop/ModemManager1/SMS" | awk 'BEGIN { FS = " " } ; { print $1 }'`
    if [ "x$SMS_PATH" = "x" ]; then
        echo "error: couldn't create SMS" 1>&2
        exit 2
    else
        echo "SMS created:"
        mmcli -s $SMS_PATH
        echo
    fi

    echo "Storing SMS..."
    CMD="mmcli -s $SMS_PATH --store"
    echo "$> $CMD"
    OUT=`eval $CMD`
    STORED=`echo "$OUT" | grep "success"`
    if [ "x$STORED" = "x" ]; then
        echo "error: couldn't store the SMS" 1>&2
        exit 2
    else
        echo "SMS stored:"
        mmcli -s $SMS_PATH
        echo
    fi

    if [ "x$DONOTSEND" = "x" ]; then
        echo "Sending SMS..."
        CMD="mmcli -s $SMS_PATH --send"
        echo "$> $CMD"
        OUT=`eval $CMD`
        SENT=`echo "$OUT" | grep "success"`
        if [ "x$SENT" = "x" ]; then
            echo "error: couldn't send the SMS" 1>&2
            exit 2
        else
            echo "SMS sent:"
            mmcli -s $SMS_PATH
            echo
        fi
    fi

    # Delete the SMS now
    echo "Deleting SMS..."
    CMD="mmcli -m $MODEM_INDEX --messaging-delete-sms=$SMS_PATH"
    echo "$> $CMD"
    OUT=`eval $CMD`
    DELETED=`echo "$OUT" | grep "success"`
    if [ "x$DELETED" = "x" ]; then
        echo "error: couldn't delete the SMS" 1>&2
        exit 2
    else
        echo "SMS deleted"
    fi
}

if [ $# -ge 2 ]; then
    MODEM_INDEX=$1
    COMMAND=$2
fi

if [ $# -eq 2 ]; then
    DONOTSEND=1
    NUMBER=123456
elif [ $# -eq 3 ]; then
    NUMBER=$3
else
    echo "error: missing arguments" 1>&2
    print_usage
    exit 255
fi

# Process commands
case $COMMAND in
    "all")
        RUN_UCS2=1
        RUN_GSM7=1
        RUN_DATA=1
        ;;
    "ucs2")
        RUN_UCS2=1
        ;;
    "gsm7")
        RUN_GSM7=1
        ;;
    "data")
        RUN_DATA=1
        ;;
    *)
        echo "error: unexpected command '$COMMAND'" 1>&2
        print_usage
        exit 255
        ;;
esac



#
# UCS2 tests
#
if [ "x$RUN_UCS2" != "x" ]; then
    test "Testing singlepart SMS with UCS2 text..." "你好你好你好你" ""
    test "Testing multipart SMS with UCS2 text..." "你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好好" ""
fi

#
# GSM7 tests
#
if [ "x$RUN_GSM7" != "x" ]; then
    test "Testing singlepart SMS with GSM7 text..." "Hello world" ""
    test "Testing multipart SMS with GSM7 text..." "01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890" ""
fi

#
# Data tests
#
if [ "x$RUN_DATA" != "x" ]; then
    TESTFILE_SHORT=/tmp/`basename $0`-140
    TESTFILE_LONG=/tmp/`basename $0`-200

    echo
    if [ -f $TESTFILE_SHORT ]; then
        echo "Re-using previously created 140-byte testfile at $TESTFILE_SHORT"
    else
        echo "Creating testfile at $TESTFILE_SHORT"
        dd if=/dev/random of=$TESTFILE_SHORT bs=1 count=140
    fi
    if [ -f $TESTFILE_LONG ]; then
        echo "Re-using previously created 200-byte testfile at $TESTFILE_LONG"
    else
        echo "Creating testfile at $TESTFILE_LONG"
        dd if=/dev/random of=$TESTFILE_LONG bs=1 count=200
    fi

    test "Testing singlepart SMS with data..." "" "$TESTFILE_SHORT"
    test "Testing multipart SMS with data..." "" "$TESTFILE_LONG"
fi