feat: Added ConfirmModal component, Edit As button with write-mode conf…

- "frontend/src/components/ConfirmModal.tsx"
- "frontend/src/components/ConfirmModal.module.css"
- "frontend/src/api/auth.ts"
- "frontend/src/context/AuthContext.tsx"
- "frontend/src/pages/AdminUsers.tsx"
- "frontend/src/pages/AdminUsers.module.css"
- "frontend/src/components/ImpersonationBanner.tsx"
- "frontend/src/components/ImpersonationBanner.module.css"

GSD-Task: S07/T02

frontend/src/api/auth.ts

@@ -93,16 +93,42 @@ export async function fetchUsers(token: string): Promise<UserListItem[]> {
   });
 }
 
+export interface ImpersonationLogEntry {
+  id: number;
+  admin_name: string;
+  target_name: string;
+  action: string;
+  write_mode: boolean;
+  ip_address: string | null;
+  created_at: string;
+}
+
 export async function impersonateUser(
   token: string,
   userId: string,
+  writeMode?: boolean,
 ): Promise<ImpersonateResponse> {
-  return request<ImpersonateResponse>(
+  const opts: RequestInit = {
-    `${BASE}/admin/impersonate/${userId}`,
-    {
     method: "POST",
     headers: { Authorization: `Bearer ${token}` },
-    },
+  };
+  if (writeMode) {
+    (opts.headers as Record<string, string>)["Content-Type"] = "application/json";
+    opts.body = JSON.stringify({ write_mode: true });
+  }
+  return request<ImpersonateResponse>(
+    `${BASE}/admin/impersonate/${userId}`,
+    opts,
+  );
+}
+
+export async function fetchImpersonationLog(
+  token: string,
+  page: number = 1,
+): Promise<ImpersonationLogEntry[]> {
+  return request<ImpersonationLogEntry[]>(
+    `${BASE}/admin/impersonation-log?page=${page}`,
+    { headers: { Authorization: `Bearer ${token}` } },
   );
 }
 

frontend/src/components/ConfirmModal.module.css

@@ -0,0 +1,93 @@
+.backdrop {
+  position: fixed;
+  inset: 0;
+  z-index: 10000;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: rgba(0, 0, 0, 0.6);
+  backdrop-filter: blur(4px);
+  animation: fadeIn 150ms ease-out;
+}
+
+@keyframes fadeIn {
+  from { opacity: 0; }
+  to { opacity: 1; }
+}
+
+.card {
+  background: #1e1e2e;
+  border: 1px solid #333;
+  border-radius: 12px;
+  padding: 1.5rem;
+  max-width: 440px;
+  width: 90%;
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
+  animation: slideUp 150ms ease-out;
+}
+
+@keyframes slideUp {
+  from { transform: translateY(12px); opacity: 0; }
+  to { transform: translateY(0); opacity: 1; }
+}
+
+.title {
+  margin: 0 0 0.75rem;
+  font-size: 1.1rem;
+  font-weight: 700;
+  color: #f0f0f0;
+}
+
+.message {
+  margin: 0 0 1.25rem;
+  font-size: 0.9rem;
+  color: #aaa;
+  line-height: 1.5;
+}
+
+.actions {
+  display: flex;
+  justify-content: flex-end;
+  gap: 0.75rem;
+}
+
+.cancelBtn {
+  padding: 0.5rem 1rem;
+  border: 1px solid #555;
+  border-radius: 6px;
+  background: transparent;
+  color: #ccc;
+  font-size: 0.85rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 150ms, border-color 150ms;
+}
+
+.cancelBtn:hover {
+  background: rgba(255, 255, 255, 0.08);
+  border-color: #888;
+}
+
+.confirmBtn {
+  padding: 0.5rem 1rem;
+  border: none;
+  border-radius: 6px;
+  font-size: 0.85rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 150ms, filter 150ms;
+}
+
+.confirmBtn:hover {
+  filter: brightness(1.15);
+}
+
+.confirmBtn[data-variant="danger"] {
+  background: #dc2626;
+  color: #fff;
+}
+
+.confirmBtn[data-variant="warning"] {
+  background: #b45309;
+  color: #fff;
+}

frontend/src/components/ConfirmModal.tsx

@@ -0,0 +1,66 @@
+import { useEffect, useCallback } from "react";
+import styles from "./ConfirmModal.module.css";
+
+interface ConfirmModalProps {
+  open: boolean;
+  title: string;
+  message: string;
+  confirmLabel?: string;
+  cancelLabel?: string;
+  onConfirm: () => void;
+  onCancel: () => void;
+  variant?: "warning" | "danger";
+}
+
+export default function ConfirmModal({
+  open,
+  title,
+  message,
+  confirmLabel = "Confirm",
+  cancelLabel = "Cancel",
+  onConfirm,
+  onCancel,
+  variant = "warning",
+}: ConfirmModalProps) {
+  const handleKeyDown = useCallback(
+    (e: KeyboardEvent) => {
+      if (e.key === "Escape") onCancel();
+    },
+    [onCancel],
+  );
+
+  useEffect(() => {
+    if (!open) return;
+    document.addEventListener("keydown", handleKeyDown);
+    return () => document.removeEventListener("keydown", handleKeyDown);
+  }, [open, handleKeyDown]);
+
+  if (!open) return null;
+
+  return (
+    <div
+      className={styles.backdrop}
+      onClick={onCancel}
+      role="dialog"
+      aria-modal="true"
+      aria-label={title}
+    >
+      <div className={styles.card} onClick={(e) => e.stopPropagation()}>
+        <h2 className={styles.title}>{title}</h2>
+        <p className={styles.message}>{message}</p>
+        <div className={styles.actions}>
+          <button className={styles.cancelBtn} onClick={onCancel}>
+            {cancelLabel}
+          </button>
+          <button
+            className={styles.confirmBtn}
+            data-variant={variant}
+            onClick={onConfirm}
+          >
+            {confirmLabel}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}

frontend/src/components/ImpersonationBanner.module.css

@@ -47,3 +47,8 @@
 :global(body.impersonating) {
   padding-top: 40px;
 }
+
+/* Write-mode red banner */
+.writeMode {
+  background: #dc2626;
+}

frontend/src/components/ImpersonationBanner.tsx

@@ -3,30 +3,42 @@ import { useAuth } from "../context/AuthContext";
 import styles from "./ImpersonationBanner.module.css";
 
 /**
- * Fixed amber banner shown when an admin is impersonating a creator.
+ * Fixed banner shown when an admin is impersonating a creator.
- * Adds body.impersonating class to push page content down.
+ * Red in write mode, amber in read-only mode.
+ * Adds body.impersonating (and body.impersonating-write) to push page content down.
  */
 export default function ImpersonationBanner() {
-  const { isImpersonating, user, exitImpersonation } = useAuth();
+  const { isImpersonating, isWriteMode, user, exitImpersonation } = useAuth();
 
   useEffect(() => {
     if (isImpersonating) {
       document.body.classList.add("impersonating");
+      if (isWriteMode) {
+        document.body.classList.add("impersonating-write");
       } else {
-      document.body.classList.remove("impersonating");
+        document.body.classList.remove("impersonating-write");
+      }
+    } else {
+      document.body.classList.remove("impersonating", "impersonating-write");
     }
     return () => {
-      document.body.classList.remove("impersonating");
+      document.body.classList.remove("impersonating", "impersonating-write");
     };
-  }, [isImpersonating]);
+  }, [isImpersonating, isWriteMode]);
 
   if (!isImpersonating) return null;
 
   return (
-    <div className={styles.banner} role="alert">
+    <div
+      className={`${styles.banner} ${isWriteMode ? styles.writeMode : ""}`}
+      role="alert"
+    >
       <span className={styles.text}>
-        <span className={styles.icon} aria-hidden="true">👁</span>
+        <span className={styles.icon} aria-hidden="true">
-        Viewing as <strong>{user?.display_name ?? "Unknown"}</strong>
+          {isWriteMode ? "✏️" : "👁"}
+        </span>
+        {isWriteMode ? "Editing" : "Viewing"} as{" "}
+        <strong>{user?.display_name ?? "Unknown"}</strong>
       </span>
       <button className={styles.exitBtn} onClick={exitImpersonation}>
         Exit

frontend/src/context/AuthContext.tsx

@@ -25,11 +25,12 @@ interface AuthContextValue {
   token: string | null;
   isAuthenticated: boolean;
   isImpersonating: boolean;
+  isWriteMode: boolean;
   loading: boolean;
   login: (email: string, password: string) => Promise<void>;
   register: (data: RegisterRequest) => Promise<UserResponse>;
   logout: () => void;
-  startImpersonation: (userId: string) => Promise<void>;
+  startImpersonation: (userId: string, writeMode?: boolean) => Promise<void>;
   exitImpersonation: () => Promise<void>;
 }
 
@@ -45,6 +46,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
     }
   });
   const [loading, setLoading] = useState(!!token);
+  const [isWriteMode, setIsWriteMode] = useState(false);
 
   // Rehydrate session from stored token on mount
   useEffect(() => {
@@ -89,13 +91,14 @@ export function AuthProvider({ children }: { children: ReactNode }) {
     setUser(null);
   }, []);
 
-  const startImpersonation = useCallback(async (userId: string) => {
+  const startImpersonation = useCallback(async (userId: string, writeMode?: boolean) => {
     if (!token) return;
     // Save admin token so we can restore it later
     sessionStorage.setItem(ADMIN_TOKEN_KEY, token);
-    const resp = await impersonateUser(token, userId);
+    const resp = await impersonateUser(token, userId, writeMode);
     localStorage.setItem(AUTH_TOKEN_KEY, resp.access_token);
     setToken(resp.access_token);
+    setIsWriteMode(!!writeMode);
     const me = await authGetMe(resp.access_token);
     setUser(me);
   }, [token]);
@@ -112,6 +115,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
     // Restore admin token
     const adminToken = sessionStorage.getItem(ADMIN_TOKEN_KEY);
     sessionStorage.removeItem(ADMIN_TOKEN_KEY);
+    setIsWriteMode(false);
     if (adminToken) {
       localStorage.setItem(AUTH_TOKEN_KEY, adminToken);
       setToken(adminToken);
@@ -130,6 +134,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
         token,
         isAuthenticated: !!user,
         isImpersonating: !!user?.impersonating,
+        isWriteMode,
         loading,
         login,
         register,

frontend/src/pages/AdminUsers.module.css

@@ -76,6 +76,33 @@
   cursor: not-allowed;
 }
 
+.actionBtns {
+  display: flex;
+  gap: 0.5rem;
+}
+
+.editAsBtn {
+  padding: 0.3rem 0.6rem;
+  border: 1px solid #dc2626;
+  border-radius: 4px;
+  background: transparent;
+  color: #dc2626;
+  font-size: 0.8rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 150ms, color 150ms;
+}
+
+.editAsBtn:hover {
+  background: #dc2626;
+  color: #fff;
+}
+
+.editAsBtn:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+
 .loading,
 .error,
 .empty {

frontend/src/pages/AdminUsers.tsx

@@ -2,6 +2,7 @@ import { useEffect, useState } from "react";
 import { useAuth } from "../context/AuthContext";
 import { fetchUsers, type UserListItem } from "../api";
 import { useDocumentTitle } from "../hooks/useDocumentTitle";
+import ConfirmModal from "../components/ConfirmModal";
 import styles from "./AdminUsers.module.css";
 
 export default function AdminUsers() {
@@ -11,6 +12,7 @@ export default function AdminUsers() {
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
   const [impersonating, setImpersonating] = useState<string | null>(null);
+  const [editTarget, setEditTarget] = useState<UserListItem | null>(null);
 
   useEffect(() => {
     if (!token) return;
@@ -25,13 +27,24 @@ export default function AdminUsers() {
     setImpersonating(userId);
     try {
       await startImpersonation(userId);
-      // Navigation will happen via auth context update
     } catch (e: any) {
       setError(e.message || "Failed to start impersonation");
       setImpersonating(null);
     }
   }
 
+  async function handleEditAsConfirm() {
+    if (!editTarget) return;
+    setEditTarget(null);
+    setImpersonating(editTarget.id);
+    try {
+      await startImpersonation(editTarget.id, true);
+    } catch (e: any) {
+      setError(e.message || "Failed to start write-mode impersonation");
+      setImpersonating(null);
+    }
+  }
+
   if (loading) {
     return (
       <div className={styles.page}>
@@ -77,6 +90,7 @@ export default function AdminUsers() {
                 </td>
                 <td>
                   {u.role === "creator" && u.id !== currentUser?.id && (
+                    <div className={styles.actionBtns}>
                       <button
                         className={styles.viewAsBtn}
                         disabled={impersonating === u.id}
@@ -84,6 +98,14 @@ export default function AdminUsers() {
                       >
                         {impersonating === u.id ? "Switching…" : "View As"}
                       </button>
+                      <button
+                        className={styles.editAsBtn}
+                        disabled={impersonating === u.id}
+                        onClick={() => setEditTarget(u)}
+                      >
+                        Edit As
+                      </button>
+                    </div>
                   )}
                 </td>
               </tr>
@@ -91,6 +113,16 @@ export default function AdminUsers() {
           </tbody>
         </table>
       )}
+      <ConfirmModal
+        open={!!editTarget}
+        title="Enable Write Mode"
+        message={`You are about to edit as ${editTarget?.display_name ?? "this user"}. Changes will be attributed to this creator and logged. Continue?`}
+        confirmLabel="Enable Write Mode"
+        cancelLabel="Cancel"
+        variant="danger"
+        onConfirm={handleEditAsConfirm}
+        onCancel={() => setEditTarget(null)}
+      />
     </div>
   );
 }

frontend/tsconfig.app.tsbuildinfo

@@ -1 +1 @@
-{"root":["./src/App.tsx","./src/main.tsx","./src/vite-env.d.ts","./src/api/admin-pipeline.ts","./src/api/admin-techniques.ts","./src/api/auth.ts","./src/api/chat.ts","./src/api/client.ts","./src/api/consent.ts","./src/api/creator-dashboard.ts","./src/api/creators.ts","./src/api/index.ts","./src/api/reports.ts","./src/api/search.ts","./src/api/stats.ts","./src/api/techniques.ts","./src/api/topics.ts","./src/api/videos.ts","./src/components/AdminDropdown.tsx","./src/components/AppFooter.tsx","./src/components/CategoryIcons.tsx","./src/components/CopyLinkButton.tsx","./src/components/CreatorAvatar.tsx","./src/components/ImpersonationBanner.tsx","./src/components/PlayerControls.tsx","./src/components/ProtectedRoute.tsx","./src/components/ReportIssueModal.tsx","./src/components/SearchAutocomplete.tsx","./src/components/SocialIcons.tsx","./src/components/SortDropdown.tsx","./src/components/TableOfContents.tsx","./src/components/TagList.tsx","./src/components/ToggleSwitch.tsx","./src/components/TranscriptSidebar.tsx","./src/components/VideoPlayer.tsx","./src/context/AuthContext.tsx","./src/hooks/useCountUp.ts","./src/hooks/useDocumentTitle.ts","./src/hooks/useMediaSync.ts","./src/hooks/useSortPreference.ts","./src/pages/About.tsx","./src/pages/AdminPipeline.tsx","./src/pages/AdminReports.tsx","./src/pages/AdminTechniquePages.tsx","./src/pages/AdminUsers.tsx","./src/pages/ChatPage.tsx","./src/pages/ConsentDashboard.tsx","./src/pages/CreatorDashboard.tsx","./src/pages/CreatorDetail.tsx","./src/pages/CreatorSettings.tsx","./src/pages/CreatorsBrowse.tsx","./src/pages/Home.tsx","./src/pages/Login.tsx","./src/pages/Register.tsx","./src/pages/SearchResults.tsx","./src/pages/SubTopicPage.tsx","./src/pages/TechniquePage.tsx","./src/pages/TopicsBrowse.tsx","./src/pages/WatchPage.tsx","./src/utils/catSlug.ts","./src/utils/citations.tsx"],"version":"5.6.3"}
+{"root":["./src/App.tsx","./src/main.tsx","./src/vite-env.d.ts","./src/api/admin-pipeline.ts","./src/api/admin-techniques.ts","./src/api/auth.ts","./src/api/chat.ts","./src/api/client.ts","./src/api/consent.ts","./src/api/creator-dashboard.ts","./src/api/creators.ts","./src/api/index.ts","./src/api/reports.ts","./src/api/search.ts","./src/api/stats.ts","./src/api/techniques.ts","./src/api/topics.ts","./src/api/videos.ts","./src/components/AdminDropdown.tsx","./src/components/AppFooter.tsx","./src/components/AudioWaveform.tsx","./src/components/CategoryIcons.tsx","./src/components/ChapterMarkers.tsx","./src/components/ConfirmModal.tsx","./src/components/CopyLinkButton.tsx","./src/components/CreatorAvatar.tsx","./src/components/ImpersonationBanner.tsx","./src/components/PlayerControls.tsx","./src/components/ProtectedRoute.tsx","./src/components/ReportIssueModal.tsx","./src/components/SearchAutocomplete.tsx","./src/components/SocialIcons.tsx","./src/components/SortDropdown.tsx","./src/components/TableOfContents.tsx","./src/components/TagList.tsx","./src/components/ToggleSwitch.tsx","./src/components/TranscriptSidebar.tsx","./src/components/VideoPlayer.tsx","./src/context/AuthContext.tsx","./src/hooks/useCountUp.ts","./src/hooks/useDocumentTitle.ts","./src/hooks/useMediaSync.ts","./src/hooks/useSortPreference.ts","./src/pages/About.tsx","./src/pages/AdminPipeline.tsx","./src/pages/AdminReports.tsx","./src/pages/AdminTechniquePages.tsx","./src/pages/AdminUsers.tsx","./src/pages/ChapterReview.tsx","./src/pages/ChatPage.tsx","./src/pages/ConsentDashboard.tsx","./src/pages/CreatorDashboard.tsx","./src/pages/CreatorDetail.tsx","./src/pages/CreatorSettings.tsx","./src/pages/CreatorsBrowse.tsx","./src/pages/Home.tsx","./src/pages/Login.tsx","./src/pages/Register.tsx","./src/pages/SearchResults.tsx","./src/pages/SubTopicPage.tsx","./src/pages/TechniquePage.tsx","./src/pages/TopicsBrowse.tsx","./src/pages/WatchPage.tsx","./src/utils/catSlug.ts","./src/utils/citations.tsx"],"errors":true,"version":"5.6.3"}