// backend/device_events.go

package main

import (
	"context"
	"encoding/json"
)

func (s *Server) publishDeviceChangeEvent(
	ctx context.Context,
	actorUserID string,
	deviceID string,
	notificationType string,
	title string,
	message string,
	data map[string]any,
) error {
	if data == nil {
		data = map[string]any{}
	}

	data["deviceId"] = deviceID
	data["actorUserId"] = actorUserID

	dataJSON, err := json.Marshal(data)
	if err != nil {
		return err
	}

	rows, err := s.db.Query(
		ctx,
		`
		SELECT id::TEXT
		FROM users
		WHERE 'admin' = ANY(rights)
		   OR 'devices:read' = ANY(rights)
		   OR 'devices:write' = ANY(rights)
		`,
	)
	if err != nil {
		return err
	}
	defer rows.Close()

	for rows.Next() {
		var userID string

		if err := rows.Scan(&userID); err != nil {
			return err
		}

		if err := s.createAndPublishNotification(
			ctx,
			userID,
			notificationType,
			title,
			message,
			"device",
			deviceID,
			dataJSON,
			true,
		); err != nil {
			return err
		}
	}

	return rows.Err()
}