feat(FontStore): implement fetchPage with error wrapping

src/entities/Font/model/store/fontStore/fontStore.svelte.ts

@@ -5,7 +5,15 @@ import {
     type InfiniteQueryObserverResult,
     type QueryFunctionContext,
 } from '@tanstack/query-core';
-import type { ProxyFontsParams } from '../../../api';
+import {
+    type ProxyFontsParams,
+    type ProxyFontsResponse,
+    fetchProxyFonts,
+} from '../../../api';
+import {
+    FontNetworkError,
+    FontResponseError,
+} from '../../../lib/errors/errors';
 import type { UnifiedFont } from '../../types';
 
 /**
@@ -175,8 +183,24 @@ export class FontStore {
         };
     }
 
-    private async fetchPage(_params: ProxyFontsParams): Promise<FontPage> {
+    private async fetchPage(params: ProxyFontsParams): Promise<FontPage> {
-        return { fonts: [], total: 0, limit: 0, offset: 0 };
+        let response: ProxyFontsResponse;
+        try {
+            response = await fetchProxyFonts(params);
+        } catch (cause) {
+            throw new FontNetworkError(cause);
+        }
+
+        if (!response) throw new FontResponseError('response', response);
+        if (!response.fonts) throw new FontResponseError('response.fonts', response.fonts);
+        if (!Array.isArray(response.fonts)) throw new FontResponseError('response.fonts', response.fonts);
+
+        return {
+            fonts: response.fonts,
+            total: response.total ?? 0,
+            limit: response.limit ?? params.limit ?? 50,
+            offset: response.offset ?? params.offset ?? 0,
+        };
     }
 }