nix/container/Photoprocess.nix

# Takes pictures from first photo dir, processes and stores to the second one.
{ container, util, pkgs, ... } @args: let
	cfg = container.config.photoprocess;
in {
	systemd.tmpfiles.rules = container.mkContainerDir cfg [
		"data"
	];

	containers.photoprocess = container.mkContainer cfg {
		bindMounts = {
			"/data" = {
				hostPath   = "${cfg.storage}/data";
				isReadOnly = false;
			};
			"/in" = {
				# hostPath = "${container.config.cloud.storage}/data/data/"
				hostPath   = builtins.elemAt cfg.photo 0;
				isReadOnly = false;
			};
			"/out" = {
				hostPath   = builtins.elemAt cfg.photo 1;
				isReadOnly = false;
			};
		};

		config = { lib, ... }: container.mkContainerConfig cfg {
			systemd.services.photosprocess = let
				script = pkgs.writeText "PhotoprocessScript" (util.trimTabs ''
					source /data/Notify.sh

					cd /in

					# 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 /out
					notify_silent "Photos processed: $total_photos"
				'');
			in util.mkStaticSystemdService {
				enable = true;
				description = "Process uploaded photos.";
				serviceConfig = {
					Type      = "oneshot";
					ExecStart = "-${lib.getExe pkgs.bashInteractive} ${script}";
					Restart   = "on-failure";
				};
				path = with pkgs; [
					curl
					imagemagick
					jpegoptim
				];
			};

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