Reduce Community lint type-safety warnings

src/common/couchdbConfiguration.ts

@@ -0,0 +1,40 @@
+type CouchDBConfigurationSection = Record<string, string | undefined>;
+
+export interface CouchDBConfiguration {
+    admins: CouchDBConfigurationSection;
+    chttpd: CouchDBConfigurationSection;
+    chttpd_auth: CouchDBConfigurationSection;
+    couchdb: CouchDBConfigurationSection;
+    cors: CouchDBConfigurationSection;
+    httpd: CouchDBConfigurationSection;
+}
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+    return typeof value === "object" && value !== null;
+}
+
+function normaliseSection(value: unknown): CouchDBConfigurationSection {
+    if (!isRecord(value)) {
+        return {};
+    }
+
+    const entries: Array<[string, string]> = [];
+    for (const [key, entry] of Object.entries(value)) {
+        if (typeof entry === "string") {
+            entries.push([key, entry]);
+        }
+    }
+    return Object.fromEntries(entries);
+}
+
+export function normaliseCouchDBConfiguration(value: unknown): CouchDBConfiguration {
+    const source = isRecord(value) ? value : {};
+    return {
+        admins: normaliseSection(source.admins),
+        chttpd: normaliseSection(source.chttpd),
+        chttpd_auth: normaliseSection(source.chttpd_auth),
+        couchdb: normaliseSection(source.couchdb),
+        cors: normaliseSection(source.cors),
+        httpd: normaliseSection(source.httpd),
+    };
+}