#!/bin/sh

# Manipulate a camera

# Google for 
#
#   Linux "no modules for USB product" "4a9/3075/1"
#
# "Using a Canon Digital IXUS 400 (PowerShot S400) digital camera under Linux":
# http://wintersun.org/linux/ixus.html
#
# "USB and Digital Still Cameras":
# http://www.linux-usb.org/USB-guide/x405.html
#
# Recognizing a USB device:
# http://lists.ethernal.org/cantlug-0305/msg00458.html

if [ ${UID} != 0 ]; then
  echo "You must be root to access the camera."
  exit 1
fi

CMD=${1}
QUALIFIER=${2}

USB_ID="0x4a9:0x3075=0x4a9:0x3055"

function usage
{
   echo "Usage: ${0} [list|get [N-M]|delete]"
   exit 1
}

if [ "${CMD-X}" = "X" ]; then
  usage
fi

case ${CMD} in
  list)
    echo "Listing files in camera:"
    gphoto2 --usbid ${USB_ID} --list-files
    ;;
  get)
    echo "Fetching all files from camera:"
    if [ "${2-X}" = "X" ]; then
      gphoto2 --usbid ${USB_ID} --get-all-files
    else
      RANGE=${2}
      gphoto2 --usbid ${USB_ID} --get-file ${RANGE}
    fi
    ;;
  delete)
    if [ "${2-X}" = "X" ]; then
      echo "gphoto2 --usbid ${USB_ID} --delete-all-files"
    else
      RANGE=${2}
      echo "gphoto2 --usbid ${USB_ID} --delete-file ${RANGE}"
    fi
    ;;
  *)
    if [ "${CMD-X}" != "X" ]; then
      echo "Unknown command: '${CMD}'"
    fi
    usage
    ;;
esac

chown -R kfogel.kfogel .