#!/usr/bin/env bash
set -euo pipefail

CLI="${1:-podman}"
REPO_ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
PROJECT="$(printf '%s' "${COMPOSE_PROJECT_NAME:-$(basename "$REPO_ROOT")}" | tr '[:upper:]' '[:lower:]' | tr -cd 'a-z0-9_-')"
KEEP='go-cache|go-mod-cache|bobbin-cargo|bobbin-target|(web|camo|avatar)-node-modules|web-svelte-kit|(camo|avatar)-wrangler|ncps-data|spindle-cache'

cd "$REPO_ROOT"

printf '==> stopping %s containers with %s compose down --remove-orphans\n' "$PROJECT" "$CLI" >&2
"$CLI" compose down --remove-orphans

printf '==> removing %s volumes, keeping caches\n' "$PROJECT" >&2
all="$("$CLI" volume ls -q | grep -E "^${PROJECT}_" || true)"
drop="$(printf '%s\n' "$all" | grep -vE "^${PROJECT}_(${KEEP})$" || true)"
keep="$(printf '%s\n' "$all" | grep -E "^${PROJECT}_(${KEEP})$" || true)"

[ -z "$keep" ] || printf '  keep    %s\n' $keep >&2
if [ -z "$drop" ]; then
  printf '  nothing to remove.\n' >&2
else
  printf '  remove  %s\n' $drop >&2
  "$CLI" volume rm $drop >/dev/null
fi
printf '==> done\n' >&2