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

migrate_checks_vars() {
  declare desc="migrates deprecated CHECKS config variables to simplified counter part introduced in 0.5.x"
  local APPS="$(dokku_apps)"
  local GLOBAL_SKIP_ALL_CHECKS=$(dokku config:get --global DOKKU_SKIP_ALL_CHECKS || true)
  local GLOBAL_SKIP_DEFAULT_CHECKS=$(dokku config:get --global DOKKU_SKIP_DEFAULT_CHECKS || true)

  local app

  dokku_log_info1 "Migrating zero downtime env variables. The following variables have been deprecated"
  dokku_log_info2 "DOKKU_SKIP_ALL_CHECKS DOKKU_SKIP_DEFAULT_CHECKS"
  dokku_log_info2 "Please use dokku checks:[disable|enable] <app> to control zero downtime functionality"

  for app in $APPS; do
    local APP_SKIP_ALL_CHECKS=$(dokku config:get "$app" DOKKU_SKIP_ALL_CHECKS || true)
    local APP_SKIP_DEFAULT_CHECKS=$(dokku config:get "$app" DOKKU_SKIP_DEFAULT_CHECKS || true)

    if [[ "$APP_SKIP_ALL_CHECKS" == "true" ]] || [[ "$APP_SKIP_DEFAULT_CHECKS" == "true" ]] || \
       [[ "$GLOBAL_SKIP_ALL_CHECKS" == "true" ]] || [[ "$GLOBAL_SKIP_DEFAULT_CHECKS" == "true" ]]; then
       dokku_log_info2 ""
       dokku_log_info2 "zero downtime disabled for app ($app)"
      config_set --no-restart "$app" DOKKU_CHECKS_ENABLED=0
    fi
    if [[ -n "$APP_SKIP_ALL_CHECKS" ]] || [[ -n "$APP_SKIP_DEFAULT_CHECKS" ]]; then
      config_unset --no-restart "$app" DOKKU_SKIP_ALL_CHECKS DOKKU_SKIP_DEFAULT_CHECKS
    fi
    dokku_log_info2 "Migration complete"
    dokku_log_info2 ""
  done

  if [[ -n "$GLOBAL_SKIP_ALL_CHECKS" ]] || [[ -n "$GLOBAL_SKIP_DEFAULT_CHECKS" ]]; then
    dokku_log_info1 "Removing global zero downtime settings"
    config_unset --global DOKKU_SKIP_ALL_CHECKS DOKKU_SKIP_DEFAULT_CHECKS
  fi
}

migrate_checks_vars "$@"