refactor: events to a pure stream instead of being part of topics

NOTE: tests are passing, but the client is broken

utils/object_helpers.ts

@@ -0,0 +1,30 @@
+export function flatten(obj: Record<string, any>, path?: string, result?: Record<string, any>) {
+	result = result ?? {};
+
+	for (const [key, value] of Object.entries(obj)) {
+		if (typeof value === 'object') {
+			flatten(value, (path ?? '') + key + '.', result);
+		} else {
+			result[(path ?? '') + key] = value;
+		}
+	}
+
+	return result;
+}
+
+export function expand(obj: Record<string, any>) {
+	const result: Record<string, any> = {};
+
+	for (const [key, value] of Object.entries(obj)) {
+		const elements = key.split('.');
+
+		let current = result;
+		for (const element of elements.slice(0, elements.length - 1)) {
+			current[element] = current[element] ?? {};
+			current = current[element];
+		}
+		current[elements[elements.length - 1]] = value;
+	}
+
+	return result;
+}

utils/prechecks.ts

@@ -1,8 +1,9 @@
 import { getCookies } from '@std/http/cookie';
 import { SESSIONS } from '../models/session.ts';
 import { verifyTotp } from './totp.ts';
-import { USERS } from '../models/user.ts';
+import { USER, USERS } from '../models/user.ts';
 import * as CANNED_RESPONSES from './canned_responses.ts';
+import { EVENT } from '../models/event.ts';
 
 export type PRECHECK = (req: Request, meta: Record<string, any>) => Promise<Response | undefined> | Response | undefined;
 export type PRECHECK_TABLE = Record<string, PRECHECK[]>;
@@ -41,3 +42,7 @@ export function require_user(
 		return CANNED_RESPONSES.permission_denied();
 	}
 }
+
+export function user_has_write_permission_for_event(user: USER, event: EVENT) {
+	return user.permissions.includes('events.create.' + event.type) || (Deno.env.get('DENO_ENV') === 'test' && event.type === 'test');
+}