import type { EventBusLike } from "@suaveplan/types";
import { recordPresenceUpdate } from "../otel/otel.js";
import type { GatewayEventMap, PresenceWebhookConfig } from "../types/types.js";
import { deliverPresenceWebhook } from "./presence-webhook.js";

/**
 * Single presence-event side-effect helper. Emits the typed bus event,
 * bumps the OTel counter, and (if configured) delivers a signed
 * webhook. Failures from any of the three sinks are swallowed.
 */
export async function firePresence(
    deps: {
        readonly bus?: EventBusLike<GatewayEventMap> | undefined;
        readonly presenceWebhook?: PresenceWebhookConfig | undefined;
        readonly clock: () => number;
    },
    kind: "join" | "leave" | "update",
    clientId: string,
    roomId: string | undefined,
    status: string
): Promise<void> {
    if (kind === "update") recordPresenceUpdate("update");
    if (deps.bus) {
        try {
            deps.bus.emit("ws_gateway:presence", {
                kind,
                clientId,
                roomId,
                at: deps.clock(),
            });
        } catch {
            /* bus failures must not crash the daemon */
        }
    }
    if (!deps.presenceWebhook) return;
    await deliverPresenceWebhook(deps.presenceWebhook, {
        kind:
            kind === "join"
                ? "presence:join"
                : kind === "leave"
                  ? "presence:leave"
                  : "presence:update",
        clientId,
        roomId,
        status,
        at: deps.clock(),
    });
}