#!/usr/bin/env perl

=pod

=head1 NAME

photocp - copy files from digital camera media to my home dir

=head1 SYNOPSIS

    # try a couple of defaults
    photocp

    # look in source_directory
    photocp [source_directory]

=head1 DESCRIPTION

This operates on a handful of assumptions, some of which are becoming obsolete
as "cameras" are mostly phones these days:

=over

=item A given source will have a bunch of unique filenames.

=item You're only likely to be copying from one source on a given day.

=item You want to copy all of the files on the source (this is the big one).

=back

=head1 AUTHOR

Brennen Bearnes

=cut

use strict;
use warnings;

use 5.10.0;
use POSIX qw(strftime);
use File::Basename;
use File::Copy;
use File::Find;
use File::HomeDir;

my $home = File::HomeDir->my_home;
my $archive_dir = $home . '/workspace/photos';

unless (-d $archive_dir) {
  die "$archive_dir is not a directory";
}

my @sources = (
  '/media/' . $ENV{'USER'} . '/EOS_DIGITAL',
  '/media/' . $ENV{'USER'} . '/CANON_DC',
  '/media/' . $ENV{'USER'} . '/NIKON D600',
  '/media/' . $ENV{'USER'} . '/NO NAME',
  '/media/' . $ENV{'USER'} . '/9016-4EF8',
  '/media/CANON_DC',
  '/media/EOS_DIGITAL',
  '/media/disk/DCIM',
  '/media/NIKON D600',
  '/run/user/1000/gvfs/' # XXX: this is fairly stupid.
);

my @t      = localtime;
my $daydir = strftime("%Y-%m-%d", @t);

my $src;
if ((defined $ARGV[0]) && (-d $ARGV[0])) {
  $src = $ARGV[0];
} else {
  foreach my $source (@sources) {
    if (-d $source) {
      $src = $source;
      last;
    }
  }
  unless ($src) {
    die 'source not mounted? tried ' . join(' ', @sources);
  }
}

my $dest = $archive_dir . '/' . $daydir;

if ((-e $dest) && (! -d $dest)) {
  die 'target exists but is not a directory';
}

if (! -d $dest) {
  say "creating $dest";
  mkdir($dest);
} else {
  say "$dest exists";
}

my $count = 0;

# XXX: What this doesn't *really* handle is the case where you sync
#      from multiple cameras and they have overlapping filenames for
#      the same sync date.

find(
  sub {
    if ( /[.] (jpe?g | mpe?g | mp4 | avi | raw | cr2 | tiff? | bmp | png | gif | mov) $/ix ) {
      $count++;
      my $copy_to = "$dest/$_";

      if (-e $copy_to) {
        say "$copy_to already exists - skipping copy";
      } else {
        say "copying $File::Find::name to $copy_to";
        copy($File::Find::name, $copy_to)
          or die "copy failed: $!";
      }

    }
  },
  $src
);

say "$count files copied";