#!/bin/sh

# mount filesystem then search for image and video files and move them into an automatically created directory.
# prepends the current date to file names and lowercases the file names (this also changes .JPG to .jpg).
# example: get-photos /dev/sdb1

sudo umount /mnt/photos --quiet
m="/mnt/photos"
mkdir -p "$m"
sudo mount "$1" -o rw,umask=000,errors=continue "$m"
filename_regexp="(.jpg|.mp4|.rw2)$"

if test 0 = $(find "$m" -type f | grep -iE $filename_regexp | wc -l)
then
  echo no files found
  sudo umount "$m"
  exit
fi

year=$(date +%Y)
year_month=$(date +%Y-%m)
t="/home/nonroot/nosync/media/$year/0/$year_month"
mkdir -p "$t"
cd "$t"

# --no-clobber prevents overwriting existing files
find "$m" -type f | grep -iE $filename_regexp | nargs /usr/bin/mv --no-clobber --target-directory=.
find . -type f | nargs prepend-date
find . -type f | nargs rename-lowercase

sudo umount "$m"