#!/bin/bash
TEMPDIR=/tmp/scanner/


RET_SCAN=0
RET_MAGICK=-1
FILENAME="UNDEFINED"

#DEVICE=utsushi:esci:usb:0x04B8:0x110B
DEVICE="utsushi:esci:usb:/sys/devices/pci0000:00/0000:00:08.3/0000:13:00.0/usb7/7-1/7-1.2/7-1.2:1.0"
function sendPaperless() {
    TOKEN=$(pass show paperless/api-token 2>/dev/null)
    curl -X POST \
        --url https://5ccppi.org:8080/api/documents/post_document/ \
        --header "Authorization: token $TOKEN" \
        -F "document=@$1"
    echo "curl: " $?
    }

if [ ! -d "$TEMPDIR" ]; then
    echo "create tempdir as it does not exist"
    mkdir $TEMPDIR
    echo "mkdir returned: " $?
fi

if [ -d "$TEMPDIR" ]; then
    scanimage --tl-x 7 -d $DEVICE --batch="$TEMPDIR/out%d.pnm" \
        --source=ADF \
        --resolution=200
    RET_SCAN=$?
    echo "scanimage retured:" $RET_SCAN
else
    echo "$TEMPDIR does not exist and could not be created"
fi
#scanimage error 1, 2 
#returns on success also 2

if [ $RET_SCAN == 2 ]; then
    DATE=$(date  +scan_%F-%s)
    FILENAME="$TEMPDIR/$DATE.pdf"
    magick -compress jpeg -quality 60 -density 150 "$TEMPDIR/out*.pnm" $FILENAME
    RET_MAGICK=$?

    for pnmFile in "$TEMPDIR/out*.pnm"
    do
        echo "remove temporary pnm files in $TEMPDIR"
        rm $pnmFile
    done
fi
if [ $RET_MAGICK == 0 ]; then
    echo "magick sucessful converted $FILENAME"
    sendPaperless $FILENAME 
    xdg-open $FILENAME
else
    echo -e "ERROR: magick returned: " $RET_MAGICK " there sems to be nothing to do\n is the paper inserted?"
fi