#!/bin/zsh

scriptdir=${0%/*}

# create resume directory
resumedir=~/.mplayer/resumes/
if ! test -d "$resumedir"
then
	mkdir -p "$resumedir"
fi

# determine filename
filename=${${*[-1]}##*/}

# check for resumefile
resumefile="$resumedir/$filename"
position=0
if test -e $resumefile
then
	position=$(< $resumefile)
fi

# start mplayer
$scriptdir/mplayer -ss $position $* | tr '\r' '\n' | grep '^A:\|End of file' | while read statusline
do
	pos=${statusline#*V:}
	pos=${pos%A-V:*}
	pos=${pos%.*}
done

# if not exiting, write position to file
if [[ $pos != Exiting* ]]
then
	pos=$((pos - 5))
	if (($pos < 0)) { pos=0 }
	echo "$pos" > "$resumefile"
else
	# remove resume file if we're done watching
	rm -f "$resumefile"
fi