#!/usr/bin/env bash
set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
source "$PLUGIN_AVAILABLE_PATH/scheduler-docker-local/internal-functions"

scheduler-docker-local-scheduler-retire() {
  declare desc="retires all old containers once they have aged out"
  declare trigger="scheduler-docker-local scheduler-retire"

  local DEAD_CONTAINER_FILE="${DOKKU_LIB_ROOT}/data/scheduler-docker-local/dead-containers"
  local APP CID CURRENT_TIME DEAD_TIME

  if [[ ! -f "$DEAD_CONTAINER_FILE" ]]; then
    return
  fi

  DEAD_CONTAINERS=()
  while read line; do
    CURRENT_TIME="$(date +%s)"
    APP="$(echo "$line" | cut -d ' ' -f1)"
    CID="$(echo "$line" | cut -d ' ' -f2)"
    DEAD_TIME="$(echo "$line" | cut -d ' ' -f3)"

    if [[ "$CURRENT_TIME" -le "$DEAD_TIME" ]]; then
      continue
    fi

    fn-scheduler-docker-local-retire-container "$APP" "$CID" "$DEAD_TIME"
    if docker ps -aq -f "id=${CID}" -f "status=running" > /dev/null 2>&1; then
      dokku_log_warn "Container ${CID} still running"
      continue
    fi

    docker rm -f "$CID" > /dev/null 2>&1 || true
    if docker inspect "${CID}" > /dev/null 2>&1; then
      dokku_log_warn "Container ${CID} still running"
      continue
    fi

    DEAD_CONTAINERS+=("$CID")
  done < "$DEAD_CONTAINER_FILE"

  for CID in "${DEAD_CONTAINERS[@]}"; do
    sed -i "/${CID}/d" "$DEAD_CONTAINER_FILE"
  done
}

scheduler-docker-local-scheduler-retire "$@"
