package infrastructure

import (
	"encoding/json"
	"fmt"

	"cloud.o-forge.io/core/oc-lib/models/booking"
	"cloud.o-forge.io/core/oc-lib/models/resources/purchase_resource"
	"cloud.o-forge.io/core/oc-lib/models/utils"
	"cloud.o-forge.io/core/oc-lib/tools"
)

// ---------------------------------------------------------------------------
// NATS emission
// ---------------------------------------------------------------------------

func EmitNATS(peerID string, message tools.PropalgationMessage) {
	// PB_CLOSE_PLANNER: notify local watchers so streams re-evaluate.
	// Cache mutations (eviction or ownership reset) are the caller's
	// responsibility — see evictAfter and ReleaseRefreshOwnership.
	if message.Action == tools.PB_CLOSE_PLANNER {
		notifyPlannerWatchers(peerID)
	}
	b, _ := json.Marshal(message)
	tools.NewNATSCaller().SetNATSPub(tools.PROPALGATION_EVENT, tools.NATSResponse{
		FromApp:  "oc-scheduler",
		Datatype: -1,
		Method:   int(tools.PROPALGATION_EVENT),
		Payload:  b,
	})
}

// ---------------------------------------------------------------------------
// NATS listeners
// ---------------------------------------------------------------------------

func ListenNATS() {
	tools.NewNATSCaller().ListenNats(map[tools.NATSMethod]func(tools.NATSResponse){
		tools.PLANNER_EXECUTION: handlePlannerExecution,
		tools.CONSIDERS_EVENT:   handleConsidersEvent,
		tools.REMOVE_RESOURCE:   handleRemoveResource,
		tools.CREATE_RESOURCE:   handleCreateResource,
		tools.CONFIRM_EVENT:     handleConfirm,
	})
}

// ---------------------------------------------------------------------------
// Draft timeout
// ---------------------------------------------------------------------------

// draftTimeout deletes a booking or purchase resource if it is still a draft
// after the 10-minute confirmation window has elapsed.
func draftTimeout(id string, dt tools.DataType) {
	adminReq := &tools.APIRequest{Admin: true}
	var res utils.DBObject
	var loadErr error
	switch dt {
	case tools.BOOKING:
		res, _, loadErr = booking.NewAccessor(adminReq).LoadOne(id)
	case tools.PURCHASE_RESOURCE:
		res, _, loadErr = purchase_resource.NewAccessor(adminReq).LoadOne(id)
	default:
		return
	}
	if loadErr != nil || res == nil || !res.IsDrafted() {
		return
	}
	switch dt {
	case tools.BOOKING:
		booking.NewAccessor(adminReq).DeleteOne(id)
	case tools.PURCHASE_RESOURCE:
		purchase_resource.NewAccessor(adminReq).DeleteOne(id)
	}
	fmt.Printf("draftTimeout: %s %s deleted (still draft after 10 min)\n", dt.String(), id)
}