#!/bin/sh
## Adapted from https://gist.github.com/nl5887/a511f172d3fb3cd0e42d.

#
# Defines transfer alias and provides easy command line file and folder sharing.
#
# Authors:
#   Remco Verhoef <remco@dutchcoders.io>
#

curl --version 2>&1 > /dev/null
if [ $? -ne 0 ]; then
	echo "Could not find curl."
	exit 1
fi

# check arguments
if [ $# -eq 0 ];
then
	cat<<EOF
No arguments specified.

Usage: transfer /tmp/test.md
       cat /tmp/test.md | transfer test.md
EOF
	exit 1
fi

# get temporarily filename, output is written to this file show progress can be showed
tmpfile=$( mktemp -t transferXXX )

# upload stdin or file
file=$1

if tty -s;
then
	basefile=$(basename "$file" | sed -e 's/[^a-zA-Z0-9._-]/-/g')

	if [ ! -e $file ];
	then
		echo "File $file doesn't exists."
		exit 1
	fi

	if [ -d $file ];
	then
		# zip directory and transfer
		zipfile=$( mktemp -t transferXXX.zip )
		cd $(dirname $file) && zip -r -q - $(basename $file) >> $zipfile
		curl --progress-bar --upload-file "$zipfile" "https://transfer.sh/$basefile.zip" >> $tmpfile
		rm -f $zipfile
	else
		# transfer file
		curl --progress-bar --upload-file "$file" "https://transfer.sh/$basefile" >> $tmpfile
	fi
else
	# transfer pipe
	curl --progress-bar --upload-file "-" "https://transfer.sh/$file" >> $tmpfile
fi

# cat output link
cat $tmpfile

# cleanup
rm -f $tmpfile