Massive update

drb-frontend/lib/useIncidents.ts

@@ -0,0 +1,95 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import { collection, onSnapshot, query, orderBy, limit, where, FirestoreError } from "firebase/firestore";
+import { onAuthStateChanged } from "firebase/auth";
+import { db, auth } from "@/lib/firebase";
+import type { IncidentRecord } from "@/lib/types";
+
+const toISO = (v: unknown): string =>
+  (v as { toDate?: () => Date })?.toDate?.()?.toISOString?.() ??
+  (typeof v === "string" ? v : new Date().toISOString());
+
+export function useIncidents(limitCount = 100) {
+  const [incidents, setIncidents] = useState<IncidentRecord[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    let unsubFirestore: (() => void) | undefined;
+
+    const unsubAuth = onAuthStateChanged(auth, (user) => {
+      if (unsubFirestore) { unsubFirestore(); unsubFirestore = undefined; }
+
+      if (!user) {
+        setIncidents([]);
+        setLoading(false);
+        return;
+      }
+
+      const q = query(
+        collection(db, "incidents"),
+        orderBy("started_at", "desc"),
+        limit(limitCount)
+      );
+      unsubFirestore = onSnapshot(q, (snap) => {
+        setIncidents(snap.docs.map((d) => {
+          const data = d.data();
+          return {
+            ...data,
+            started_at: toISO(data.started_at),
+            updated_at: toISO(data.updated_at),
+          } as IncidentRecord;
+        }));
+        setLoading(false);
+      }, (err: FirestoreError) => {
+        console.error("useIncidents:", err);
+        setError(err.message);
+        setLoading(false);
+      });
+    });
+
+    return () => {
+      unsubAuth();
+      if (unsubFirestore) unsubFirestore();
+    };
+  }, [limitCount]);
+
+  return { incidents, loading, error };
+}
+
+export function useActiveIncidents() {
+  const [incidents, setIncidents] = useState<IncidentRecord[]>([]);
+
+  useEffect(() => {
+    let unsubFirestore: (() => void) | undefined;
+
+    const unsubAuth = onAuthStateChanged(auth, (user) => {
+      if (unsubFirestore) { unsubFirestore(); unsubFirestore = undefined; }
+
+      if (!user) {
+        setIncidents([]);
+        return;
+      }
+
+      const q = query(collection(db, "incidents"), where("status", "==", "active"));
+      unsubFirestore = onSnapshot(q, (snap) => {
+        setIncidents(snap.docs.map((d) => {
+          const data = d.data();
+          return {
+            ...data,
+            started_at: toISO(data.started_at),
+            updated_at: toISO(data.updated_at),
+          } as IncidentRecord;
+        }));
+      }, (err: FirestoreError) => { console.error("useActiveIncidents:", err); });
+    });
+
+    return () => {
+      unsubAuth();
+      if (unsubFirestore) unsubFirestore();
+    };
+  }, []);
+
+  return incidents;
+}