initial commit

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/admin/hooks/useApiCall.ts

@@ -0,0 +1,45 @@
+import { useCallback, useRef } from 'react'
+import { useAlert } from '../context/AlertContext'
+import apiFetch from '../utils/api'
+
+interface ApiCallResult<T> {
+  data: T | null
+  ok: boolean
+  response: Response | null
+}
+
+export default function useApiCall() {
+  const alert = useAlert()
+  const abortRef = useRef<AbortController | null>(null)
+
+  const call = useCallback(async <T = unknown>(
+    url: string,
+    options: RequestInit = {},
+    errorMsg = 'Chyba při načítání dat'
+  ): Promise<ApiCallResult<T>> => {
+    if (abortRef.current) abortRef.current.abort()
+    const controller = new AbortController()
+    abortRef.current = controller
+
+    try {
+      const response = await apiFetch(url, {
+        ...options,
+        signal: controller.signal,
+      })
+      const data = await response.json()
+      if (!response.ok || !data.success) {
+        alert.error(data.error || errorMsg)
+        return { data: null, ok: false, response }
+      }
+      return { data: data.data as T, ok: true, response }
+    } catch (err: unknown) {
+      if (err instanceof Error && err.name === 'AbortError') {
+        return { data: null, ok: false, response: null }
+      }
+      alert.error(errorMsg)
+      return { data: null, ok: false, response: null }
+    }
+  }, [alert])
+
+  return { call }
+}