package dbm

import (
	"context"

	"github.com/coder/websocket/wsjson"
	"github.com/zuadi/tecamino-dbm/models"
)

func (d *DBMHandler) Publish(ctx context.Context, eventType, path string, value any) error {
	d.RLock()
	defer d.RUnlock()

	for _, dp := range d.DB.QueryDatapoints(1, path) {
		for id, pub := range dp.Subscribtions {
			if client, ok := d.Clients[id]; !ok {
				delete(dp.Subscribtions, id)
			} else {
				if pub.OnChange {
					err := wsjson.Write(ctx, client.Conn, models.JsonResponse{
						Event: OnChange,
						Path:  dp.Path,
						Value: value,
					})
					if err != nil {
						d.Log.Error("publish.Publish", err.Error())
						return err
					}
				}
			}
		}
	}
	return nil
}