#!/bin/bash

#    uwshot - the unix-way of making screenshots
#    Copyright (C) 2008 Roman Mamedov <https://romanrm.net/>
#
#    This program is free software: you can redistribute it and/or modify it under the terms of
#    the GNU General Public License version 3 as published by the Free Software Foundation.
#    See http://www.gnu.org/licenses/gpl-3.0.html for more details.
#
#    Notable dependencies:
#      - scrot
#      - zenity
#      - pngcrush (optional)
#
#    Usage:
#      uwshot.sh [baseurl]
#
#    Parameters:
#      baseurl - the URL under which the current directory is accessible from the Web
#
#    History:
#      2010-04-14 - Updated to use UTC time and ISO 8601 date/time format
#                   Added PID to the temporary file name
#                   Updated to use "bash" instead of "sh"
#      2008-08-26 - initial public release

BASEURL=$1
TEMPNAME=`whoami`-uwshot-$$.tmp.png

export TZ=UTC
NAMEPREFIX=`date +%Y-%m-%dT%H%M%SZ-`

# First, make a screenshot and pngcrush it
sleep 1
scrot -f -b -s $TEMPNAME
pngcrush $TEMPNAME /tmp/$TEMPNAME && mv /tmp/$TEMPNAME $TEMPNAME

# Then ask for screenshot name; if cancel is pressed, delete the temp file and exit
SHOTSIZE=`du -b -h $TEMPNAME | cut -f 1`
SHOTNAME=`zenity --entry --text="Screenshot is $SHOTSIZE, enter name or press \"Cancel\" to delete"`
if [[ -z "$SHOTNAME" ]]; then
  rm $TEMPNAME;
  exit 1;
fi

# Give the screenshot its final name
SHOTNAME=$NAMEPREFIX$SHOTNAME.png
mv $TEMPNAME $SHOTNAME

if [[ -n "$BASEURL" ]]; then
  zenity --entry --text="Screenshot is $SHOTSIZE, copy-paste the URL or press \"Cancel\" to delete" --entry-text="$BASEURL$SHOTNAME" || rm $SHOTNAME
fi