nix/host/x86_64-linux/home/Photoprocess.nix

# Takes pictures from first photo dir, processes and stores to the second one.
{
	lib,
	pkgs,
	secret,
	util,
	...
} @args: let
	imgInput  = "/storage/hot/container/cloud/data/data/cakee/files/photo";
	imgOutput = "/storage/cold_1/backup/tmp/photo";
in {
	systemd.services.photosprocess = let
		script = pkgs.writeText "PhotoprocessScript" (util.trimTabs ''
			function notify_silent() {
				curl -X POST -H 'Content-Type: Application/json' -d "${secret.tg.dt "true"}" ${secret.tg.bt} &> /dev/null
			}

			cd ${imgInput}

			# Convert png to jpg.
			for img in $(ls *.png) $(ls *.PNG); do
				filename=''${img%.*}
				convert "$filename.png" "$filename.jpg"
			done
			rm *.png *.PNG

			# Rename bad extensions.
			for img in $(ls *.jpeg) $(ls *.JPG) $(ls *.JPEG); do
				filename=''${img%.*}
				mv "$img" "$filename.jpg"
			done

			# Compress jpg.
			mogrify -resize 2073600@ *.jpg
			jpegoptim --size=1000k *.jpg

			# Rename to hash.
			for file in *; do
				if [[ -f "$file" ]]; then
					extension="''${file##*.}"
					if [ -f "$file" ] && [ "$extension" != "$file" ]; then
						new_name="''${file%$extension}"
					else
						new_name="$file"
						extension=""
					fi
					new_name=$(sha1sum "$file" | cut -d\  -f1)
					if [[ "$extension" != "" ]]; then
						new_name="''${new_name,,}.$extension"
					else
						new_name="''${new_name,,}"
					fi
					mv "$file" "$new_name"
				fi
			done

			# Move to images.
			total_photos=$(ls | wc -l)
			mv *.jpg ${imgOutput}
			notify_silent "Photos processed: $total_photos"
		'');
	in util.mkStaticSystemdService {
			enable = true;
			description = "Process uploaded photos";
			serviceConfig = {
				ExecStart = "-${lib.getExe pkgs.bashInteractive} ${script}";
				Restart   = "on-failure";
				Type      = "oneshot";
			};
			path = with pkgs; [
				curl
				imagemagick
				jpegoptim
			];
		};

	systemd.timers.photosprocess = {
		timerConfig = {
			OnCalendar = "daily";
			Persistent = true;
			Unit       = "photosprocess.service";
		};
		wantedBy = [
			"timers.target"
		];
	};
}