updated image loading

.env

@@ -1 +1,2 @@
 VITE_BASEURL=http://192.168.75.11/
+VITE_TESTURL=http://100.82.205.44/SightingListRear/sightingSummary?mostRecentRef=-1

.gitignore

@@ -22,3 +22,4 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+.env

src/components/FrontCameraOverview/FrontCameraOverviewCard.tsx

@@ -14,6 +14,7 @@ const FrontCameraOverviewCard = ({ className }: CardProps) => {
   const navigate = useNavigate();
   const handlers = useSwipeable({
     onSwipedRight: () => navigate("/front-camera-settings"),
+    onSwipedDown: () => navigate("/system-settings"),
     trackMouse: true,
   });
 

src/components/RearCameraOverview/RearCameraOverviewCard.tsx

@@ -1,10 +1,11 @@
 import clsx from "clsx";
 import Card from "../UI/Card";
-import { SnapshotContainer } from "../CameraOverview/SnapshotContainer";
+// import { SnapshotContainer } from "../CameraOverview/SnapshotContainer";
 import { useSwipeable } from "react-swipeable";
 import { useNavigate } from "react-router";
 import CardHeader from "../UI/CardHeader";
 import { faCamera } from "@fortawesome/free-regular-svg-icons";
+import SightingOverview from "../SightingOverview/SightingOverview";
 
 type CardProps = React.HTMLAttributes<HTMLDivElement>;
 
@@ -12,14 +13,21 @@ const RearCameraOverviewCard = ({ className }: CardProps) => {
   const navigate = useNavigate();
   const handlers = useSwipeable({
     onSwipedLeft: () => navigate("/rear-camera-settings"),
+    onSwipedDown: () => navigate("/system-settings"),
     trackMouse: true,
   });
 
   return (
-    <Card className={clsx("min-h-[40vh] md:min-h-[60vh] h-auto", className)}>
+    <Card
+      className={clsx(
+        "relative min-h-[40vh] md:min-h-[60vh] h-auto",
+        className
+      )}
+    >
       <div className="flex flex-col space-y-3 h-full" {...handlers}>
         <CardHeader title="Rear Overiew" icon={faCamera} />
-        <SnapshotContainer side="TargetDetectionRear" />
+        <SightingOverview />
+        {/* <SnapshotContainer side="TargetDetectionRear" /> */}
       </div>
     </Card>
   );

src/components/SettingForms/NPED/NPEDFields.tsx

@@ -1,8 +1,11 @@
 import { Form, Formik, Field } from "formik";
 import FormGroup from "../components/FormGroup";
 import type { NPEDFieldType } from "../../../types/types";
+import { useNPEDAuth } from "../../../hooks/useNPEDAuh";
 
 const NPEDFields = () => {
+  const { signIn, isError } = useNPEDAuth();
+
   const initialValues = {
     username: "",
     password: "",
@@ -10,7 +13,8 @@ const NPEDFields = () => {
   };
 
   const handleSubmit = (values: NPEDFieldType) => {
-    alert(JSON.stringify(values));
+    console.log(isError);
+    signIn(values);
   };
 
   return (

src/components/SightingOverview/SightingOverview.tsx

@@ -5,8 +5,15 @@ import { useOverviewOverlay } from "../../hooks/useOverviewOverlay";
 import { useSightingFeedContext } from "../../context/SightingFeedContext";
 import { useHiDPICanvas } from "../../hooks/useHiDPICanvas";
 import NavigationArrow from "../UI/NavigationArrow";
+import { useSwipeable } from "react-swipeable";
+import { useNavigate } from "react-router";
 
 const SightingOverview = () => {
+  const navigate = useNavigate();
+  const handlers = useSwipeable({
+    onSwipedRight: () => navigate("/front-camera-settings"),
+    trackMouse: true,
+  });
   const [overlayMode, setOverlayMode] = useState<0 | 1 | 2>(0);
 
   const imgRef = useRef<HTMLImageElement | null>(null);
@@ -16,20 +23,17 @@ const SightingOverview = () => {
     setOverlayMode((m) => ((m + 1) % 3) as 0 | 1 | 2);
   }, []);
 
-  const { effectiveSelected } = useSightingFeedContext();
+  const { effectiveSelected, side, mostRecent, noSighting } =
+    useSightingFeedContext();
 
-  useOverviewOverlay(effectiveSelected, overlayMode, imgRef, canvasRef);
+  useOverviewOverlay(mostRecent, overlayMode, imgRef, canvasRef);
 
   const { sync } = useHiDPICanvas(imgRef, canvasRef);
+  if (noSighting) return <p>loading</p>;
   return (
     <div className="mt-2 grid gap-3">
-      {/* <div className="flex items-center gap-3 text-sm">
-        <div className="font-semibold">{effectiveSelected?.vrm ?? "—"}</div>
-        <div>{effectiveSelected?.countryCode ?? "—"}</div>
-        <div className="opacity-80">{effectiveSelected?.timeStamp ?? "—"}</div>
-      </div> */}
-
-      <div className="inline-block">
+      <div className="inline-block w-[90%] mx-auto" {...handlers}>
+        <NavigationArrow side={side} />
         <div className="relative aspect-[5/4]">
           <img
             ref={imgRef}
@@ -37,12 +41,12 @@ const SightingOverview = () => {
               sync();
               setOverlayMode((m) => m);
             }}
-            src={effectiveSelected?.overviewUrl || BLANK_IMG}
+            src={mostRecent?.overviewUrl || BLANK_IMG}
             alt="overview"
             className="absolute inset-0 w-full h-full object-contain cursor-pointer z-10"
             onClick={onOverviewClick}
             style={{
-              display: effectiveSelected?.overviewUrl ? "block" : "none",
+              display: mostRecent?.overviewUrl ? "block" : "none",
             }}
           />
           <canvas

src/components/SightingsWidget/SightingWidget.tsx

@@ -29,7 +29,7 @@ export default function SightingHistoryWidget({
   className,
 }: SightingHistoryWidgetProps) {
   useNow(1000);
-  const { items, selectedRef, setSelectedRef } = useSightingFeedContext();
+  const { sightings, selectedRef, setSelectedRef } = useSightingFeedContext();
 
   const onRowClick = useCallback(
     (ref: number) => {
@@ -39,8 +39,8 @@ export default function SightingHistoryWidget({
   );
 
   const rows = useMemo(
-    () => items.filter(Boolean) as SightingWidgetType[],
-    [items]
+    () => sightings?.filter(Boolean) as SightingWidgetType[],
+    [sightings]
   );
 
   return (
@@ -49,7 +49,7 @@ export default function SightingHistoryWidget({
       <div className="flex flex-col gap-3 ">
         {/* Rows */}
         <div className="flex flex-col">
-          {rows.map((obj, idx) => {
+          {rows?.map((obj, idx) => {
             const isSelected = obj?.ref === selectedRef;
             const motionAway = (obj?.motion ?? "").toUpperCase() === "AWAY";
             const primaryIsColour = obj?.srcCam === 1;

src/components/UI/NavigationArrow.tsx

@@ -16,9 +16,9 @@ const NavigationArrow = ({ side, settingsPage }: NavigationArrowProps) => {
       return;
     }
 
-    if (side === "TargetDetectionFront") {
+    if (side === "Front") {
       navigate("/front-camera-settings");
-    } else if (side === "TargetDetectionRear") {
+    } else if (side === "Rear") {
       navigate("/Rear-Camera-settings");
     }
   };
@@ -42,10 +42,9 @@ const NavigationArrow = ({ side, settingsPage }: NavigationArrowProps) => {
       </>
     );
   }
-
   return (
     <>
-      {side === "TargetDetectionFront" ? (
+      {side === "Front" ? (
         <FontAwesomeIcon
           icon={faArrowLeft}
           className="absolute top-[50%] left-[2%] backdrop-blur-md hover:cursor-pointer animate-bounce"

src/context/SightingFeedContext.tsx

@@ -3,18 +3,20 @@ import type { SightingWidgetType } from "../types/types";
 import { useSightingFeed } from "../hooks/useSightingFeed";
 
 type SightingFeedContextType = {
-  items: (SightingWidgetType | null | undefined)[];
+  sightings: (SightingWidgetType | null | undefined)[];
   selectedRef: number | null;
   setSelectedRef: (ref: number | null) => void;
   effectiveSelected: SightingWidgetType | null;
+  mostRecent: SightingWidgetType | null;
+  side: string;
+  isPending: boolean;
+  noSighting: boolean;
 };
 
 type SightingFeedProviderProps = {
-  baseUrl: string;
-  entries?: number;
-  pollMs?: number;
-  autoSelectLatest?: boolean;
+  url: string;
   children: ReactNode;
+  side: string;
 };
 
 const SightingFeedContext = createContext<SightingFeedContextType | undefined>(
@@ -22,17 +24,32 @@ const SightingFeedContext = createContext<SightingFeedContextType | undefined>(
 );
 
 export const SightingFeedProvider = ({
-  baseUrl,
-  entries = 7,
-  pollMs = 500,
-  autoSelectLatest = true,
   children,
+  url,
+  side,
 }: SightingFeedProviderProps) => {
-  const { items, selectedRef, setSelectedRef, effectiveSelected } =
-    useSightingFeed(baseUrl, { limit: entries, pollMs, autoSelectLatest });
+  const {
+    sightings,
+    selectedRef,
+    setSelectedRef,
+    effectiveSelected,
+    mostRecent,
+    isPending,
+    noSighting,
+  } = useSightingFeed(url);
+
   return (
     <SightingFeedContext.Provider
-      value={{ items, selectedRef, setSelectedRef, effectiveSelected }}
+      value={{
+        sightings,
+        selectedRef,
+        setSelectedRef,
+        effectiveSelected,
+        mostRecent,
+        side,
+        isPending,
+        noSighting,
+      }}
     >
       {children}
     </SightingFeedContext.Provider>

src/hooks/useGetOverviewSnapshot.ts

@@ -4,6 +4,7 @@ import { useQuery } from "@tanstack/react-query";
 const apiUrl = import.meta.env.VITE_BASEURL;
 
 async function fetchSnapshot(cameraSide: string) {
+  console.log(`${apiUrl}/${cameraSide}-preview`);
   const response = await fetch(
     // `http://100.116.253.81/Colour-preview`
     `${apiUrl}/${cameraSide}-preview`
@@ -40,7 +41,7 @@ export function useGetOverviewSnapshot(cameraSide: string) {
     queryKey: ["overviewSnapshot", cameraSide],
     queryFn: () => fetchSnapshot(cameraSide),
     refetchOnWindowFocus: false,
-    refetchInterval: 1000,
+    // refetchInterval: 1000,
   });
 
   useEffect(() => {

src/hooks/useNPEDAuh.ts

@@ -0,0 +1,49 @@
+import { useMutation } from "@tanstack/react-query";
+import type { NPEDFieldType } from "../types/types";
+
+const url = "https://jsonplaceholder.typicode.com/posts";
+
+async function signIn(loginDetails: NPEDFieldType) {
+  console.log(loginDetails);
+  const response = await fetch(url, {
+    method: "POST",
+    body: JSON.stringify(loginDetails),
+  });
+  if (!response.ok) throw new Error("cannot reach NPED endpoint");
+  return response.json();
+}
+
+async function signOut() {
+  const response = await fetch(url, { method: "POST" });
+  if (!response.ok) throw new Error("cannot reach NPED sign out endpoint");
+  return response.json();
+}
+
+function setUserContext(user) {
+  console.log(user);
+}
+
+export const useNPEDAuth = () => {
+  const signInMutation = useMutation({
+    mutationKey: ["NPEDSignin"],
+    mutationFn: signIn,
+    onSuccess: (data) => setUserContext(data),
+  });
+
+  const signOutMutation = useMutation({
+    mutationKey: ["auth", "NPEDSignOut"],
+    mutationFn: signOut,
+    onSuccess: () => setUserContext(null),
+  });
+
+  return {
+    signIn: signInMutation.mutate,
+    signInAsync: signInMutation.mutateAsync,
+    isPending: signInMutation.isPending,
+    isError: signInMutation.isError,
+    error: signInMutation.error,
+    data: signInMutation.data,
+
+    signOut: signOutMutation.mutate,
+  };
+};

src/hooks/useOverviewVideo.ts

@@ -2,6 +2,8 @@ import { useQuery } from "@tanstack/react-query";
 import { useRef } from "react";
 
 const apiUrl = import.meta.env.VITE_BASEURL;
+const FAST_MS = 200; // tab visible
+const SLOW_MS = 2000; // tab hidden
 
 async function fetchOverviewImage(cameraSide: string) {
   const response = await fetch(`${apiUrl}${cameraSide}-preview`);
@@ -14,7 +16,11 @@ export function useOverviewVideo() {
   const { isPending, isError, data } = useQuery({
     queryKey: ["overviewVideo"],
     queryFn: () => fetchOverviewImage("CameraFront"),
-    refetchInterval: 500,
+    // refetchInterval: () =>
+    //   typeof document !== "undefined" && document.visibilityState === "hidden"
+    //     ? SLOW_MS
+    //     : FAST_MS,
+    // refetchIntervalInBackground: false,
   });
 
   if (isPending) return;

src/hooks/useSightingFeed.ts

@@ -1,91 +1,84 @@
 import { useEffect, useMemo, useRef, useState } from "react";
 import type { SightingWidgetType } from "../types/types";
+import { useQuery } from "@tanstack/react-query";
 
-export function useSightingFeed(
-  baseUrl: string,
-  {
-    limit = 7,
-    pollMs = 800,
-    autoSelectLatest = true,
-  }: {
-    limit?: number;
-    pollMs?: number;
-    autoSelectLatest?: boolean;
-  } = {}
-) {
-  const [items, setItems] = useState<SightingWidgetType[]>(
-    () => Array(limit).fill(null) as unknown as SightingWidgetType[]
+// const url = `http://100.82.205.44/SightingListFront/sightingSummary?mostRecentRef=-1`;
+
+async function fetchSighting(url: string, ref: number, signal?: AbortSignal) {
+  const dynamicUrl = `${url}${ref}`;
+  const res = await fetch(dynamicUrl, { signal });
+  if (!res.ok) throw new Error(String(res.status));
+  return (await res.json()) as SightingWidgetType;
+}
+
+export function useSightingFeed(url: string) {
+  const [sightings, setSightings] = useState<SightingWidgetType[]>(
+    () => Array(7).fill(null) as unknown as SightingWidgetType[]
   );
+  const [noSighting, setNoSighting] = useState(false);
   const [selectedRef, setSelectedRef] = useState<number | null>(null);
   const [mostRecent, setMostRecent] = useState<SightingWidgetType | null>(null);
 
   const mostRecentRef = useRef<number>(-1);
+  const lastSeenRef = useRef<number | null>(null);
+
+  const { data, isPending } = useQuery({
+    queryKey: ["sighting"],
+    queryFn: ({ signal }) => fetchSighting(url, mostRecentRef.current, signal),
+    refetchInterval: 200,
+    refetchIntervalInBackground: true,
+    refetchOnWindowFocus: false,
+    staleTime: 0,
+    notifyOnChangeProps: ["data"],
+  });
+
+  useEffect(() => {
+    if (!data) return;
+
+    if (data.ref === -1) {
+      setNoSighting(true);
+    } else {
+      setNoSighting(false);
+    }
+    if (data.ref === lastSeenRef.current) return; // duplicate payload → do nothing
+    lastSeenRef.current = data.ref;
+
+    setSightings((prev) => {
+      const existing = prev.find((p) => p?.ref === data.ref);
+      const next = existing
+        ? prev
+        : [data, ...prev.filter(Boolean)].slice(0, 7);
+
+      const stillHasSelection =
+        selectedRef != null && next.some((s) => s?.ref === selectedRef);
+      if (!stillHasSelection) {
+        setSelectedRef(data.ref);
+      }
+
+      return next;
+    });
+    setMostRecent(sightings[0]);
+    mostRecentRef.current = data.ref ?? -1;
+  }, [data, selectedRef, sightings]);
 
-  // effective selected (fallback to most recent)
   const selected = useMemo(
     () =>
       selectedRef == null
         ? null
-        : items.find((x) => x?.ref === selectedRef) ?? null,
-    [items, selectedRef]
+        : sightings.find((s) => s?.ref === selectedRef) ?? null,
+    [sightings, selectedRef]
   );
+
   const effectiveSelected = selected ?? mostRecent ?? null;
 
-  useEffect(() => {
-    let delay = pollMs;
-    let dead = false;
-    const controller = new AbortController();
-
-    async function tick() {
-      try {
-        // Pause when tab hidden to save CPU/network
-        if (document.hidden) {
-          setTimeout(tick, Math.max(delay, 2000));
-          return;
-        }
-
-        const url = `http://100.116.253.81/mergedHistory/sightingSummary?mostRecentRef=${mostRecentRef.current}`;
-        const res = await fetch(url, { signal: controller.signal });
-        if (!res.ok) throw new Error(String(res.status));
-
-        const obj: SightingWidgetType = await res.json();
-        if (obj && typeof obj.ref === "number" && obj.ref > -1) {
-          setItems((prev) => {
-            const next = [obj, ...prev].slice(0, limit);
-            // maintain selection if still present; otherwise select newest if allowed
-            const stillExists =
-              selectedRef != null && next.some((x) => x?.ref === selectedRef);
-            if (autoSelectLatest && !stillExists) {
-              setSelectedRef(obj.ref);
-            }
-            return next;
-          });
-          setMostRecent(obj);
-          mostRecentRef.current = obj.ref;
-          delay = pollMs; // reset backoff on success
-        }
-      } catch {
-        // exponential backoff (max 10s)
-        delay = Math.min(delay * 2, 10000);
-      } finally {
-        if (!dead) setTimeout(tick, delay);
-      }
-    }
-
-    const t = setTimeout(tick, pollMs);
-    return () => {
-      dead = true;
-      controller.abort();
-      clearTimeout(t);
-    };
-  }, [baseUrl, limit, pollMs, autoSelectLatest, selectedRef]);
-
   return {
-    items,
+    sightings,
     selectedRef,
     setSelectedRef,
     mostRecent,
     effectiveSelected,
     mostRecentRef,
+    isPending,
+    noSighting,
   };
 }

src/pages/Dashboard.tsx

@@ -1,29 +1,26 @@
 import FrontCameraOverviewCard from "../components/FrontCameraOverview/FrontCameraOverviewCard";
 import RearCameraOverviewCard from "../components/RearCameraOverview/RearCameraOverviewCard";
-import { useNavigate } from "react-router";
-import { useSwipeable } from "react-swipeable";
+
 import SightingHistoryWidget from "../components/SightingsWidget/SightingWidget";
 import { SightingFeedProvider } from "../context/SightingFeedContext";
 
 const Dashboard = () => {
-  const navigate = useNavigate();
-
-  const handlers = useSwipeable({
-    onSwipedDown: () => navigate("/system-settings"),
-    trackMouse: true,
-  });
-
   return (
-    <div
-      className="mx-auto grid grid-cols-1 sm:grid-cols-1 lg:grid-cols-2 gap-2 px-2 sm:px-4 lg:px-0 w-full"
-      {...handlers}
+    <div className="mx-auto grid grid-cols-1 sm:grid-cols-1 lg:grid-cols-2 gap-2 px-2 sm:px-4 lg:px-0 w-full">
+      <SightingFeedProvider
+        url={
+          "http://100.116.253.81/mergedHistory/sightingSummary?mostRecentRef="
+        }
+        side="Front"
       >
-      <SightingFeedProvider baseUrl={"http://100.82.205.44/SightingListFront"}>
         <FrontCameraOverviewCard className="order-1" />
         <SightingHistoryWidget className="order-3" />
       </SightingFeedProvider>
 
-      <SightingFeedProvider baseUrl="http://100.82.205.44/SightingListRear">
+      <SightingFeedProvider
+        url="http://100.82.205.44/SightingListRear/sightingSummary?mostRecentRef="
+        side="Rear"
+      >
         <RearCameraOverviewCard className="order-2" />
         <SightingHistoryWidget className="order-4" />
       </SightingFeedProvider>

src/utils/utils.ts

@@ -87,3 +87,60 @@ export function drawRects(
     ctx.stroke();
   });
 }
+
+// setSelectedRef(data?.ref);
+
+//setItems(data);
+
+// const selected = useMemo(
+//   () =>
+//     selectedRef == null
+//       ? null
+//       : items.find((x) => x?.ref === selectedRef) ?? null,
+//   [items, selectedRef]
+// );
+// const effectiveSelected = selected ?? mostRecent ?? null;
+
+// useEffect(() => {
+//   let delay = pollMs;
+//   let dead = false;
+//   const controller = new AbortController();
+
+//   async function tick() {
+//     try {
+//       // Pause when tab hidden to save CPU/network
+//       if (document.hidden) {
+//         setTimeout(tick, Math.max(delay, 2000));
+//         return;
+//       }
+
+//       if (obj && typeof obj.ref === "number" && obj.ref > -1) {
+//         setItems((prev) => {
+//           const next = [obj, ...prev].slice(0, limit);
+//           // maintain selection if still present; otherwise select newest if allowed
+//           const stillExists =
+//             selectedRef != null && next.some((x) => x?.ref === selectedRef);
+//           if (autoSelectLatest && !stillExists) {
+//             setSelectedRef(obj.ref);
+//           }
+//           return next;
+//         });
+//         setMostRecent(obj);
+//         mostRecentRef.current = obj.ref;
+//         delay = pollMs; // reset backoff on success
+//       }
+//     } catch {
+//       // exponential backoff (max 10s)
+//       delay = Math.min(delay * 2, 10000);
+//     } finally {
+//       if (!dead) setTimeout(tick, delay);
+//     }
+//   }
+
+//   const t = setTimeout(tick, pollMs);
+//   return () => {
+//     dead = true;
+//     controller.abort();
+//     clearTimeout(t);
+//   };
+// }, [baseUrl, limit, pollMs, autoSelectLatest, selectedRef]);