readme

app/lib/media.ts

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+const MEDIA_PROXY_PATH = "/api/media/proxy";
+
+function configuredMinioPublicUrl(): string {
+  return (
+    process.env.NEXT_PUBLIC_MINIO_PUBLIC_URL ||
+    process.env.MINIO_PUBLIC_URL ||
+    ""
+  ).replace(/\/$/, "");
+}
+
+export function isExternalMediaUrl(value: string): boolean {
+  return /^https?:\/\//i.test(value);
+}
+
+export function isMinioUrl(value: string): boolean {
+  const publicUrl = configuredMinioPublicUrl();
+  return Boolean(publicUrl && value.startsWith(`${publicUrl}/`));
+}
+
+export function mediaUrl(value?: string | null): string {
+  const url = String(value || "").trim();
+  if (!url) return "";
+  if (/^(data:|blob:|#|mailto:|tel:)/i.test(url)) return url;
+  if (/^file:/i.test(url)) return "";
+  if (!isExternalMediaUrl(url)) return url;
+  if (isMinioUrl(url)) return url;
+  return `${MEDIA_PROXY_PATH}?src=${encodeURIComponent(url)}`;
+}
+
+export function mediaUrls(values: string[]): string[] {
+  return values.map(mediaUrl).filter(Boolean);
+}

app/lib/meetups.ts

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+export type MeetupMode = "offline" | "online" | "hybrid";
+export type MeetupAccessLevel = "public" | "members" | "vip" | "hosts";
+
+export interface MeetupFeatureOption {
+  key: string;
+  zh: string;
+  en: string;
+}
+
+export interface MiroTalkMeetupLike {
+  id: string;
+  city?: string;
+  date?: string;
+  time?: string;
+  meetingUrl?: string;
+  mirotalkRoom?: string;
+}
+
+export const DEFAULT_MIROTALK_URL = "https://mirotalk.nomadro.cn";
+export const MIROTALK_PROVIDER_LABEL = "MiroTalk P2P";
+export const DEFAULT_LOUNGE_URL = "https://lounge.nomadro.cn";
+export const WEB_CHAT_PROVIDER_LABEL = "The Lounge + Ergo IRC";
+
+export const MEETUP_FEATURE_OPTIONS: MeetupFeatureOption[] = [
+  { key: "group_video", zh: "多人视频", en: "Group video" },
+  { key: "screen_share", zh: "屏幕共享", en: "Screen share" },
+  { key: "whiteboard", zh: "白板协作", en: "Whiteboard" },
+  { key: "breakout", zh: "分组讨论", en: "Breakout rooms" },
+  { key: "recording", zh: "录制回放", en: "Recording" },
+  { key: "host_controls", zh: "主持人控场", en: "Host controls" },
+];
+
+export const DEFAULT_ONLINE_FEATURES = ["group_video", "screen_share", "whiteboard", "host_controls"];
+
+export function normalizeMiroTalkRoom(value: string): string {
+  return value
+    .trim()
+    .toLowerCase()
+    .replace(/[^a-z0-9-]+/g, "-")
+    .replace(/^-+|-+$/g, "")
+    .slice(0, 80);
+}
+
+export function createMiroTalkRoomSlug(meetup: MiroTalkMeetupLike): string {
+  const datePart = String(meetup.date || "").slice(0, 10).replace(/[^0-9]/g, "");
+  const timePart = String(meetup.time || "").slice(0, 5).replace(/[^0-9]/g, "");
+  const cityPart = normalizeMiroTalkRoom(meetup.city || "online");
+  return normalizeMiroTalkRoom(["nomadcna", cityPart, datePart, timePart, meetup.id].filter(Boolean).join("-"));
+}
+
+export function getMiroTalkBaseUrl(): string {
+  return (
+    process.env.NEXT_PUBLIC_MIROTALK_URL ||
+    process.env.NEXT_PUBLIC_MIROTALK_P2P_URL ||
+    process.env.NEXT_PUBLIC_MIROTALK_SFU_URL ||
+    DEFAULT_MIROTALK_URL
+  ).replace(/\/$/, "");
+}
+
+export function getMiroTalkServerLabel(): string {
+  const baseUrl = getMiroTalkBaseUrl();
+  try {
+    return new URL(baseUrl).host;
+  } catch {
+    return baseUrl.replace(/^https?:\/\//i, "");
+  }
+}
+
+export function buildMiroTalkJoinUrl(meetup: MiroTalkMeetupLike, displayName = "NomadCNA"): string {
+  if (meetup.meetingUrl && /^https?:\/\//i.test(meetup.meetingUrl)) {
+    return meetup.meetingUrl;
+  }
+  const room = normalizeMiroTalkRoom(meetup.mirotalkRoom || createMiroTalkRoomSlug(meetup));
+  const name = displayName.trim() || "NomadCNA";
+  const params = new URLSearchParams({ room, name });
+  return `${getMiroTalkBaseUrl()}/join?${params.toString()}`;
+}
+
+export function getLoungeBaseUrl(): string {
+  return (process.env.NEXT_PUBLIC_LOUNGE_URL || DEFAULT_LOUNGE_URL).replace(/\/$/, "");
+}
+
+export function getLoungeServerLabel(): string {
+  const baseUrl = getLoungeBaseUrl();
+  try {
+    return new URL(baseUrl).host;
+  } catch {
+    return baseUrl.replace(/^https?:\/\//i, "");
+  }
+}
+
+export function buildMeetupChatUrl(): string {
+  return getLoungeBaseUrl();
+}
+
+export function featureLabels(keys: string[], locale: string): string[] {
+  const selected = new Set(keys);
+  return MEETUP_FEATURE_OPTIONS.filter((feature) => selected.has(feature.key)).map((feature) =>
+    locale === "zh" ? feature.zh : feature.en
+  );
+}