Give packs an identity so create can refuse missing deps and load in a stable order.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/HSchool.Client/src/i18n/strings.ts

@@ -40,6 +40,8 @@ const ru = {
   errorInvalidStartDate: 'Дата начала вне допустимого диапазона.',
   errorInvalidMap: 'Карта должна быть связным графом: двор и хотя бы одна комната.',
   errorUnknownMod: 'Выбранный мод не найден.',
+  errorMissingMod: 'Не выбран обязательный мод «{id}».',
+  errorModCycle: 'Выбранные моды зависят друг от друга по кругу.',
   errorInvalidCatalog: 'Не удалось загрузить выбранные моды.',
   errorUnknownNameSet: 'Выбранный набор имён не найден.',
   errorUnknownNativeLanguage: 'Выбранный родной язык не входит в этот набор имён.',
@@ -251,6 +253,8 @@ const en: Messages = {
   errorInvalidStartDate: 'The start date is outside the allowed range.',
   errorInvalidMap: 'The map must be a connected graph: a yard and at least one room.',
   errorUnknownMod: 'A selected mod is missing.',
+  errorMissingMod: 'Required mod “{id}” is not selected.',
+  errorModCycle: 'The selected mods depend on each other in a cycle.',
   errorInvalidCatalog: 'The selected packs could not be loaded.',
   errorUnknownNameSet: 'The selected name set is not in the catalog.',
   errorUnknownNativeLanguage: 'The selected native language is not in that name set.',

src/HSchool.Client/src/net/api.ts

@@ -10,6 +10,7 @@ export interface School {
   readonly gameTime: string;
   readonly running: boolean;
   readonly speedIndex: number;
+  readonly modIds?: readonly string[];
 }
 
 export interface SchoolsResponse {
@@ -30,6 +31,7 @@ export class ApiError extends Error {
     readonly payroll?: number,
     readonly remaining?: number,
     readonly attempted?: number,
+    readonly missing?: string,
   ) {
     super(message);
   }
@@ -75,6 +77,9 @@ export async function createSchool(
 export interface ModInfo {
   readonly id: string;
   readonly required: boolean;
+  readonly label: string;
+  readonly version: string;
+  readonly requires: readonly string[];
 }
 
 export interface DefInfo {
@@ -167,8 +172,9 @@ export interface CatalogResponse {
   readonly holidays: readonly HolidayInfo[];
 }
 
-export async function fetchMods(): Promise<readonly ModInfo[]> {
-  const response = await request<{ mods: readonly ModInfo[] }>('/api/mods');
+export async function fetchMods(lang: string): Promise<readonly ModInfo[]> {
+  const query = new URLSearchParams({ lang });
+  const response = await request<{ mods: readonly ModInfo[] }>(`/api/mods?${query.toString()}`);
   return response.mods;
 }
 
@@ -528,6 +534,7 @@ async function toApiError(response: Response): Promise<ApiError> {
       payroll?: number;
       remaining?: number;
       attempted?: number;
+      missing?: string;
     };
     return new ApiError(
       response.status,
@@ -537,6 +544,7 @@ async function toApiError(response: Response): Promise<ApiError> {
       problem.payroll,
       problem.remaining,
       problem.attempted,
+      problem.missing,
     );
   } catch {
     return new ApiError(response.status, 'unknown', response.statusText);

src/HSchool.Client/src/ui/createSchoolDialog.ts

@@ -194,7 +194,7 @@ export function createSchoolDialog(options: CreateSchoolOptions): Promise<School
   const paintMods = async (): Promise<void> => {
     let packs;
     try {
-      packs = await fetchMods();
+      packs = await fetchMods(getLocale());
     } catch {
       showError(t('catalogLoadFailed'));
       return;
@@ -223,7 +223,7 @@ export function createSchoolDialog(options: CreateSchoolOptions): Promise<School
         'label',
         { class: 'mod-list__item' },
         checkbox,
-        pack.required ? t('coreModLocked', { id: pack.id }) : pack.id,
+        pack.required ? t('coreModLocked', { id: pack.label }) : pack.label,
       );
       modsList.append(label);
     }
@@ -359,6 +359,10 @@ function describe(reason: unknown): string {
       return t('errorInvalidMap');
     case 'unknown-mod':
       return t('errorUnknownMod');
+    case 'missing-mod':
+      return t('errorMissingMod', { id: reason.missing ?? '' });
+    case 'mod-cycle':
+      return t('errorModCycle');
     case 'invalid-catalog':
       return t('errorInvalidCatalog');
     case 'unknown-name-set':