feat: WIP element Chat intergration

apps/edr-freight-api/src/config/chat.config.ts

@@ -0,0 +1,59 @@
+import { registerAs } from '@nestjs/config';
+
+export interface ChatConfig {
+  enabled: boolean;
+  /** Synapse base URL reachable from this container (client + admin APIs). */
+  baseUrl: string;
+  /** Synapse's public_baseurl — what Element itself is configured to call. Only
+   *  used to seed the sso.html handoff; server-to-server calls use {@link baseUrl}. */
+  publicBaseUrl: string;
+  /** Public Element Web origin — the SSO handoff link points here. */
+  webUrl: string;
+  /** Matrix server_name — the `:domain` half of every MXID. */
+  serverName: string;
+  /** HS256 secret. Must exactly match Synapse's jwt_config.secret. */
+  jwtSecret: string;
+  /** Bearer token for a Synapse server admin account (room/user provisioning). */
+  adminToken: string;
+}
+
+const REQUIRED_VARS = [
+  'MATRIX_BASE_URL',
+  'MATRIX_PUBLIC_BASE_URL',
+  'MATRIX_CHAT_WEB_URL',
+  'MATRIX_SERVER_NAME',
+  'MATRIX_JWT_SECRET',
+  'MATRIX_ADMIN_TOKEN',
+] as const;
+
+export default registerAs('chat', (): ChatConfig => {
+  const enabled = (process.env.MATRIX_ENABLED ?? 'false').toLowerCase() === 'true';
+  if (!enabled) {
+    return {
+      enabled: false,
+      baseUrl: '',
+      publicBaseUrl: '',
+      webUrl: '',
+      serverName: '',
+      jwtSecret: '',
+      adminToken: '',
+    };
+  }
+
+  const missing = REQUIRED_VARS.filter((name) => !process.env[name]);
+  if (missing.length > 0) {
+    throw new Error(
+      `Internal chat is enabled (MATRIX_ENABLED=true) but the following env vars are missing: ${missing.join(', ')}`,
+    );
+  }
+
+  return {
+    enabled: true,
+    baseUrl: process.env.MATRIX_BASE_URL!.replace(/\/$/, ''),
+    publicBaseUrl: process.env.MATRIX_PUBLIC_BASE_URL!.replace(/\/$/, ''),
+    webUrl: process.env.MATRIX_CHAT_WEB_URL!.replace(/\/$/, ''),
+    serverName: process.env.MATRIX_SERVER_NAME!,
+    jwtSecret: process.env.MATRIX_JWT_SECRET!,
+    adminToken: process.env.MATRIX_ADMIN_TOKEN!,
+  };
+});