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#!/bin/bash
## sm files
##
##  -h, --help              Prints this help message
##
##  --add <file>            Adds file to zchain as a zblock
##
##  --index                 List files
##
##  --full-index            List all files
##
##  --ls-map-files          List map files
##
ZFILESDIR="$AK_WORKDIR/files"
pwd > .pwd
CRD=$(cat .pwd)

PROGRAM="$(basename $0)"
#set -xe
source $AK_LIBDIR/_ak_log
source $AK_LIBDIR/_ak_ipfs
source $AK_LIBDIR/_ak_gpg
source $AK_LIBDIR/_ak_zblock

if [ ! -d $ZFILESDIR ]; then
    mkdir $ZFILESDIR
    if [ $? == 0 ]
    then
        _ak_log_info "Folder $ZFILESDIR created!"
    else
        _ak_log_error "Failed to create $ZFILESDIR folder"
        exit 1
    fi
    cd $ZFILESDIR
else
    _ak_log_info "$ZFILESDIR found!"
fi


_ak_sm_files_add(){
    FILENAME="$1"
    _ak_sm_files_main $FILENAME $CRD
    cat data | jq -M
}
_ak_sm_files_main(){
    FILENAME="$1"
    CRP="$2"

    TEMPASSIN="$(_ak_make_temp_directory)"
    cd $TEMPASSIN

    echo "Adding $FILENAME"
    _ak_log_info "Switching to tmp folder..."
    if [ $? == 0 ]; then
        _ak_log_info "Success"
    else
        _ak_log_error "Error with tmp folder"
        exit 5
    fi
    _ak_log_info "Copying $1 to $TEMPASSIN"

    cp $CRP/$FILENAME $FILENAME
    if [ $? == 0 ]; then
        _ak_log_info "Copied successfully"
    else
        _ak_log_error "Error copying..."
    fi

    _ak_log_info "Adding $FILENAME to IPFS..."
    FILE_IPFS_HASH=$(_ak_ipfs_add $FILENAME)
    if [ $? == 0 ]; then
        _ak_log_info "Added $FILENAME to IPFS"
    else
        _ak_log_error "Error in adding the $FILENAME to IPFS"
    fi

    _ak_log_info "Adding $FILE to SHAMAPSYS..."
    FILEMAP_SHA512_HASH=$(ak-sm-filesplitter $FILENAME)
    if [ $? == 0 ]; then
        _ak_log_info "Added $FILENAME to SHAMAPSYS"
    else
        _ak_log_error "Error in adding the $FILENAME to SHAMAPSYS"
    fi

    _ak_log_info "Signing..."
    SIGN_FILE=$FILENAME".asc"
    _ak_gpg_sign_detached $SIGN_FILE $FILENAME
    if [ $? == 0 ]; then
        _ak_log_info "Signed"
    else
        _ak_log_error "Error while signing"
    fi

    _ak_log_info "Adding signature to IPFS"
    SIGNATURE=$(_ak_ipfs_add $SIGN_FILE)
    if [ $? == 0 ]; then
        _ak_log_info "Added"
    else
        _ak_log_error "Error while adding"
    fi

    _ak_log_info "Adding signature to SHAMAPSYS"
    SHAMAPSIGMAP=$(ak-sm-filesplitter $SIGN_FILE)
    if [ $? == 0 ]; then
        _ak_log_info "Added"
    else
        _ak_log_error "Error while adding"
    fi

    cat > data <<EOF
{
    "timestamp":"$(date -u +%s)",
    "filename":"$FILENAME",
    "shamap":"$FILEMAP_SHA512_HASH",
    "shamapsig":"$SHAMAPSIGMAP",
    "ipfs":"$FILE_IPFS_HASH",
    "detach":"$SIGNATURE"
}
EOF

    echo "Printing data..."
    cat data
    echo "Publishing..."

    _ak_zblock_pack sha-files/announce $(pwd)/data
    if [ $? == 0 ]
    then
        echo "cool"
    else
        echo "not?"
        exit 2
    fi
}

_ak_sm_files_index(){
    tail -n1 $AK_WORKDIR/fmp/* | grep '^[abcdef1234567890]' | awk '{ print $2 }'
}

_ak_sm_files_ls_mapfiles(){
    cd $AK_WORKDIR/fmp
    for f in `find . -type f | sed -e 's/\.\///g'`;do
        FILENAME="$(tail -n1 $f | grep '^[abcdef1234567890]' | awk '{ print $2 }')"
        FILEHASH="$(tail -n1 $f | grep '^[abcdef1234567890]' | awk '{ print $1 }')"
        MAPFILE="$f"
        printf "\nMap: %s\nFilename: %s\nSum: %s\n\n" $MAPFILE $FILENAME $FILEHASH
    done
}

_ak_sm_files_full_index(){
    tail -n1 $AK_WORKDIR/fmp/* | grep '^[abcdef1234567890]'
}

if [ ! -z $1 ]; then
    case $1 in
        -h | --help) usage; exit;;
        --add) _ak_sm_files_add $2; exit;;
        --index) _ak_sm_files_index; exit;;
        --full-index) _ak_sm_files_full_index; exit;;
        --ls-map-files) _ak_sm_files_ls_mapfiles; exit;;
        *) usage; exit;;
    esac
else usage
fi