#!/bin/bash

# FIXME: just for testing
backup_path=backups

# FIXME: just for testing
export DOCKER_CONTEXT=demo.coopcloud.tech

mapfile -t services < <(docker service ls --format '{{ .Name }}')

# FIXME: just for testing
services=( "ghost_demo_app" "ghost_demo_db" )

for service in "${services[@]}"; do
	echo "service: $service"
	details=$(docker service inspect "$service" --format "{{ json .Spec.Labels }}")
	if echo "$details" | jq -r '.["backupbot.backup"]' | grep -q 'true'; then
		pre=$(echo "$details" | jq -r '.["backupbot.backup.pre-hook"]')
		post=$(echo "$details" | jq -r '.["backupbot.backup.post-hook"]')
		path=$(echo "$details" | jq -r '.["backupbot.backup.path"]')
		
		if [ "$path" = "null" ]; then
			echo "ERROR: missing 'path' for $service"
			continue  # or maybe exit?
		fi

		container=$(docker container ls -f "name=$service" --format '{{ .ID }}')
		
		echo "backing up $service"
		test -d "$backup_path/$service" || mkdir "$backup_path/$service"
		
		if [ "$pre" != "null" ]; then
			# run the precommand
			# shellcheck disable=SC2086
			docker exec "$container" $pre
		fi

		# run the backup
		docker cp "$container:$path" "$backup_path/$service"

		if [ "$post" != "null" ]; then
			# run the postcommand
			# shellcheck disable=SC2086
			docker exec "$container" $post
		fi
	fi
	restic -p restic-password \
		backup --quiet -r sftp:u272979@u272979.your-storagebox.de:/demo.coopcloud.tech \
		--tag coop-cloud "$backup_path"
done