#!/bin/sh
set -eu

ROOT=$(CDPATH='' cd -- "$(dirname -- "$0")/.." && pwd)
ENV_FILE=${WNH_LOAD_ENV_FILE:-"$ROOT/.env.load"}
LOAD_TOOLS_IMAGE=${WNH_LOAD_TOOLS_IMAGE:-who-need-help:load-tools}

if [ ! -f "$ENV_FILE" ]; then
  echo "Missing $ENV_FILE; no load-profile project was selected." >&2
  exit 1
fi

set -a
# shellcheck source=/dev/null
. "$ENV_FILE"
set +a

: "${LOAD_PROJECT:?LOAD_PROJECT is missing from .env.load}"

if [ "$LOAD_PROJECT" = who_need_help ]; then
  echo "Refusing to stop the staging Compose project." >&2
  exit 1
fi

cd "$ROOT"
docker compose \
  --env-file "$ENV_FILE" \
  -p "$LOAD_PROJECT" \
  -f compose.yaml \
  -f compose.load.yaml \
  down --remove-orphans

# Optional observability and backup overlays create additional networks which
# are not present in the base load Compose file. Remove only unattached
# networks carrying this exact isolated project label.
for network_id in $(docker network ls -q \
  --filter "label=com.docker.compose.project=$LOAD_PROJECT"); do
  observed_project=$(docker network inspect --format \
    '{{index .Labels "com.docker.compose.project"}}' "$network_id")
  endpoints=$(docker network inspect --format '{{len .Containers}}' "$network_id")

  if [ "$observed_project" != "$LOAD_PROJECT" ] || [ "$endpoints" != 0 ]; then
    echo "Refusing unexpected or connected load-profile network: $network_id" >&2
    exit 1
  fi

  docker network rm "$network_id" >/dev/null
done

if image_id=$(docker image inspect --format '{{.Id}}' "$LOAD_TOOLS_IMAGE" 2>/dev/null); then
  if [ -z "$(docker ps -aq --filter "ancestor=$image_id")" ]; then
    docker image rm "$LOAD_TOOLS_IMAGE" >/dev/null
  fi
fi

echo "Removed the isolated load-profile containers and networks; its named volumes remain."