1 files changed, 10 insertions, 6 deletions
diff --git a/client-web/source/preferences.ts b/client-web/source/preferences.ts
index e7fc7bb..63efeb2 100644
--- a/client-web/source/preferences.ts
+++ b/client-web/source/preferences.ts
@@ -1,9 +1,12 @@
+import { hex_id } from "./helper.ts";
 
 export interface PrefDecl<T> {
     name: string,
-    default: T
+    default: T,
+    type?: Type,
     description: string,
     possible_values?: T[]
+    optional?: boolean,
 }
 
 type Type = "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function";
@@ -13,7 +16,9 @@ export function register_prefs<T extends Record<string, PrefDecl<unknown>>>(ds:
     const p: PrefMap<T> = {} as PrefMap<T>
     for (const key in ds) {
         const d = ds[key];
-        let value = get_param(d.default, d.name) ?? d.default;
+        let type = typeof d.default;
+        if (type == "undefined") { if (d.type) type = d.type; else throw new Error("type needed"); }
+        let value = get_param(type, d.name) ?? d.default;
         if (d.possible_values) if (!d.possible_values.includes(value)) value = d.default
         p[key] = value
     }
@@ -31,10 +36,9 @@ export function load_query_params(): { [key: string]: string } {
     return q
 }
 
-export function get_param<T>(example: T, key: string): T | undefined {
+export function get_param<T>(ty: string, key: string): T | undefined {
     const v = raw_params[key]
     if (v == undefined) return undefined
-    const ty = typeof example
     if (ty == "string") return v as unknown as T
     else if (ty == "number") {
         const n = parseInt(v)
@@ -50,14 +54,14 @@ export function get_param<T>(example: T, key: string): T | undefined {
     return undefined
 }
 
-
 const PREF_DECLS = {
     rnnoise: { name: "rnnoise", default: true, description: "Use RNNoise for noise suppression" },
     native_noise_suppression: { name: "native_noise_suppression", default: false, description: "Suggest the browser to do noise suppression" },
-    username: { name: "username", default: "guest", description: "Username" },
+    username: { name: "username", default: "guest-" + hex_id(), description: "Username" },
     microphone_gain: { name: "microphone_gain", default: 1, description: "Amplify microphone volume" },
     microphone_enabled: { name: "microphone_enabled", default: false, description: "Add one microphone track on startup" },
     camera_enabled: { name: "camera_enabled", default: false, description: "Add one camera track on startup" },
     screencast_enabled: { name: "screencast_enabled", default: false, description: "Add one screencast track on startup" },
+    camera_facing_mode: { name: "camera_facing_mode", default: undefined as undefined | string, type: "string" as const, possible_values: ["environment", "user", undefined], description: "Prefer user-facing or env-facing camera" }
 }
 export const PREFS = register_prefs(PREF_DECLS)