#!/bin/bash



wd=$(pwd)
#output_dir=$1
#if [[ -z "$output_dir" ]]; then
#echo 'please specify outpur textures dir ($1)'
#exit
#fi

texturetool="/home/m00nkey/PVRTexTool/PVRTexToolCL/Linux_x86_64/PVRTexTool"


function convertTexture
{
	local texFilename=$1			# texture file name

	echo "Converting "$texFilename"..."
	texFilenameEscaped=${texFilename//" "/"_"}
	filenameEscaped=${texFilenameEscaped%.*}
	mv "$texFilename" $texFilenameEscaped

	convertCommand=$texturetool" -fOGLPVRTC4 -m -pvrtciterations8 -r2 -yflip1 -i"$texFilenameEscaped
#echo $convertCommand
	$convertCommand

	filename=${texFilename%.*}
	mv $texFilenameEscaped "$texFilename"
	mv $filenameEscaped".pvr" "$filename.pvr"
}


function convertTexturesInDirectory
{
	local dir=$1			# source dir

	cd "$dir"
	echo "Converting directory "$dir"..."
	#echo $(pwd)

	ls -1 . |
	while read fname
	do
		if [[ ! -d ./$fname ]];
		then
			extension=${fname##*.}
			if [ "$extension" == "png" ] || [ "$extension" == "jpg" ]
			then
				convertTexture "$fname"
			fi
		fi
	done

	cd ..
}

function convertFolder
{
        local dir=$1                    # source dir

        cd "$dir"
        echo "Converting directory "$dir"..."

        ls -1 . |
        while read dirname
        do
                if [[ -d ./$dirname ]];
                then
                        convertTexturesInDirectory "$wd/$dirname"
                fi
        done

        cd ..
}

ls -1 "$wd" |
while read dirName
do
        if [[ -d $wd/$dirName ]];
        then
                convertFolder "$wd/$dirName"
        fi
done
exit