#!/bin/bash
# Licence GPL

# Check parameters
number='^[0-9]+$'

if [ "$#" -ne 3 ]; then
    echo "Illegal number of parameters"
    echo "Usage: shoot [name] [number] [exposure]" >&2; exit 1
fi

if ! [[ ($2 =~ $number) && ($3 =~ $number) ]] ; then
   echo "Argument 2 and 3 must be numbers" >&2; exit 1
fi

# Prepare environment
FOLDER="$HOME/${1}"
[ -d "$FOLDER" ] || mkdir -p "$FOLDER"
cd "$FOLDER" || { echo "$FOLDER does not exits!"; exit 1; }

# Start captures
env LANG=C gphoto2 --set-config iso=800 --set-config imageformat=RAW
env LANG=C gphoto2 --set-config shutterspeed=bulb
for ((i=1; i<=$2; i++))
	do
	printf -v NAME "%03i" $i
	env LANG=C gphoto2 --wait-event=2s --set-config eosremoterelease=Immediate --wait-event=${3}s --set-config eosremoterelease=None --capture-image-and-download --filename "${1}-${NAME}.cr2"
	sleep 5;
done
echo "Done"