;; Title: Miniforge.ai
;; Subtitle: An agentic SDLC / fleet-control platform
;; Author: Christopher Lester
;; Line: Founder, Miniforge.ai (project)
;; Copyright 2025-2026 Christopher Lester (christopher@miniforge.ai)
;;
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;;     http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.

(ns ai.miniforge.workflow-financial-etl.events
  "ETL lifecycle event schemas and emission helpers."
  (:require
   [ai.miniforge.logging.interface :as log]))

(defn make-event-base
  [event-type workflow-id]
  {:event/type event-type
   :event/id (random-uuid)
   :event/timestamp (java.util.Date.)
   :event/version "1.0.0"
   :event/sequence-number 0
   :workflow/id workflow-id})

(defn etl-completed-event
  [workflow-id duration-ms summary]
  (merge (make-event-base :etl/completed workflow-id)
         {:etl/duration-ms duration-ms
          :etl/summary summary
          :message "ETL workflow completed successfully"}))

(defn etl-failed-event
  [workflow-id failure-stage failure-reason & [error-details]]
  (cond-> (merge (make-event-base :etl/failed workflow-id)
                 {:etl/failure-stage failure-stage
                  :etl/failure-reason failure-reason
                  :message (str "ETL workflow failed: " failure-reason)})
    error-details (assoc :etl/error-details error-details)))

(defn emit-etl-completed
  [logger workflow-id duration-ms summary]
  (let [event (etl-completed-event workflow-id duration-ms summary)]
    (log/info logger :etl :etl/completed
             {:message (:message event)
              :data (dissoc event :message)})))

(defn emit-etl-failed
  [logger workflow-id failure-stage failure-reason & [error-details]]
  (let [event (etl-failed-event workflow-id failure-stage failure-reason error-details)]
    (log/error logger :etl :etl/failed
              {:message (:message event)
               :data (dissoc event :message)})))
