#!/bin/bash -e

#URL="http://www.radareu.cz/data/radar/radar.anim.20180517.1100.0.png"

#TEXTOOL=/opt/Imagination/PowerVR_Graphics/PowerVR_Tools/PVRTexTool/CLI/Linux_x86_64/PVRTexToolCLI
URL="http://www.radareu.cz/data/radar/"

MIN=$(printf "%02d" $(expr $(date -u +%M) / 15 \* 15))
FNAME="radar.anim.$(date -u +%Y%m%d.%H)$MIN.0.png"

curl -v $URL$FNAME -o radar-orig.png

convert "radar-orig.png" -resize "2048x2048!" -quality 100 "radar-0.png"
#$TEXTOOL -i radar-0.png -f PVRTC1_4,UBN,lRGB -o radar-0.pvr -q pvrtcbest

for i in {8..0}; do
	if [ -e radar-$i.png ]; then
		mv -f radar-$i.png radar-$((i+1)).png;
	fi
	if [ -e radar-$i.pvr ]; then
		mv -f radar-$i.pvr radar-$((i+1)).pvr;
	fi
done

echo "$(date -u +%Y%m%d.%H)$MIN" > Radar.info

#gdal_translate -of GTiff -a_srs EPSG:4326 -a_ullr -14.6182250687514 72.62025190354672  45.314636273437486 30.968189526345665 radar-orig.png radar.tiff

#/opt/Imagination/PowerVR_Graphics/PowerVR_Tools/PVRTexTool/CLI/Linux_x86_64/PVRTexToolCLI -i radar-1.png -f PVRTC1_2,UBN,lRGB -o test.pvr
#gdal_translate -of GTiff -a_srs EPSG:3857 -a_ullr 72.62025190354672 -14.618225054687514 30.968189526345665 45.314636273437486  radar-orig.png radar.tiff