Apply selected server maps automatically without config overlays

src/lib/server/fleet/server-config.ts

@@ -0,0 +1,29 @@
+import { composeServerCfg } from './config-compose.js';
+import { getBaselineForScope, getVersion, listPromotedOverlaysForScope } from './scripts.js';
+import { T5_ZOMBIE_MAPS } from './map-aliases.js';
+
+export const MAP_CONFIG_FILE = 'electric_cherry_map.cfg';
+
+/** Loaded after Plutainer's default/main config and before map_rotate. */
+export function getServerMapConfig(game: string | null, map: string | null): Buffer | null {
+    const entry = game === 't5' ? T5_ZOMBIE_MAPS.find((item) => item.canonical === map) : undefined;
+    return entry ? Buffer.from(`// Generated by Electric Cherry from the selected map.\nset sv_maprotation "map ${entry.canonical}"\n`) : null;
+}
+
+/** The promoted config used for first boot and drift reconciliation. */
+export function getPromotedServerConfig(game: string | null, map: string | null): Buffer | null {
+    if (!game) return null;
+    const baseline = getBaselineForScope('game', game);
+    if (!baseline?.current_version_id) return null;
+    const version = getVersion(baseline.current_version_id);
+    if (!version) return null;
+
+    const overlays = [
+        ...listPromotedOverlaysForScope('game', game),
+        ...(map ? listPromotedOverlaysForScope('map', map) : [])
+    ].flatMap((overlay) => {
+        const current = overlay.current_version_id ? getVersion(overlay.current_version_id) : undefined;
+        return current ? [{ id: overlay.id, text: current.content.toString('utf8') }] : [];
+    });
+    return Buffer.from(composeServerCfg(version.content.toString('utf8'), overlays, game, map), 'utf8');
+}