From 4c5be8cf8d942743398581b46ac2c76d0ff273d8 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 24 Sep 2025 09:12:44 +0200
Subject: Initial migration

---
 src/components/Datetime.tsx |  28 ++++++++++++
 src/components/Geshem.tsx   |  65 ++++++++++++++++++++++++++
 src/components/Map.tsx      | 108 ++++++++++++++++++++++++++++++++++++++++++++
 src/components/Slider.tsx   |  43 ++++++++++++++++++
 4 files changed, 244 insertions(+)
 create mode 100644 src/components/Datetime.tsx
 create mode 100644 src/components/Geshem.tsx
 create mode 100644 src/components/Map.tsx
 create mode 100644 src/components/Slider.tsx

(limited to 'src/components')

diff --git a/src/components/Datetime.tsx b/src/components/Datetime.tsx
new file mode 100644
index 0000000..2010f8b
--- /dev/null
+++ b/src/components/Datetime.tsx
@@ -0,0 +1,28 @@
+import React from "react";
+import { DateTime as LuxonDateTime } from "luxon";
+
+interface DateTimeProps {
+  images: string[];
+  slider: number;
+}
+
+export function DateTime({ images, slider }: DateTimeProps) {
+  let datetime: LuxonDateTime | null = null;
+
+  if (images.length > 0 && images[slider]) {
+    const ds = images[slider].substring(5, 18);
+    datetime = LuxonDateTime.fromFormat(ds, "yyyyMMdd/HHmm", {
+      zone: "utc",
+    }).setZone("Asia/Jerusalem");
+  }
+
+  const date = datetime ? datetime.toFormat("dd/MM/y") : "";
+  const time = datetime ? datetime.toFormat("HH:mm") : "";
+
+  return (
+    <div id="datetime">
+      <div id="date">{date}</div>
+      <div id="time">{time}</div>
+    </div>
+  );
+}
\ No newline at end of file
diff --git a/src/components/Geshem.tsx b/src/components/Geshem.tsx
new file mode 100644
index 0000000..acd2bc6
--- /dev/null
+++ b/src/components/Geshem.tsx
@@ -0,0 +1,65 @@
+import React, { useState, useEffect } from "react";
+
+import { Map } from "./Map";
+import { Slider } from "./Slider";
+import { DateTime } from "./Datetime";
+
+import { IMAGES_BASE_URL, PLAYBACK_HOURS, PLAYBACK_SLOTS } from "../config";
+
+interface GeshemProps {
+  date?: string;
+}
+
+export function Geshem({ date }: GeshemProps) {
+  const [images, setImages] = useState<string[]>([]);
+  const [playback] = useState(
+    date ||
+    (typeof window !== 'undefined' ? new URL(window.location.toString()).searchParams.get("history") : null) ||
+    undefined
+  );
+  const [slider, setSlider] = useState(playback ? PLAYBACK_SLOTS : 9);
+
+  useEffect(() => {
+    const fetchImages = async () =>
+      fetch(`${IMAGES_BASE_URL}/imgs.json`)
+        .then(res => res.json())
+        .then(imgs => imgs["280"])
+        .then(setImages);
+
+    const buildPlayback = async () => {
+      const date = playback;
+      const hours = Array.from(Array(PLAYBACK_HOURS).keys()).map(
+        h => `${String(h).padStart(2, "0")}`
+      );
+      const minutes = Array.from(Array(6).keys()).map(
+        m => `${String(m * 10).padStart(2, "0")}`
+      );
+      const paths = hours.reduce<string[]>(
+        (acc, h) =>
+          acc.concat(minutes.map(m => `imgs/${date}/${h}${m}/280.png`)),
+        []
+      );
+      setImages(paths);
+    };
+
+    let timer: number;
+    if (playback) {
+      buildPlayback();
+    } else {
+      fetchImages();
+      timer = window.setInterval(fetchImages, 60 * 1000);
+    }
+
+    return () => {
+      if (timer !== undefined) clearInterval(timer);
+    };
+  }, [playback]);
+
+  return (
+    <>
+      <Map images={images} slider={slider} />
+      <DateTime images={images} slider={slider} />
+      <Slider slider={slider} playback={playback} setSlider={setSlider} />
+    </>
+  );
+}
\ No newline at end of file
diff --git a/src/components/Map.tsx b/src/components/Map.tsx
new file mode 100644
index 0000000..0e39308
--- /dev/null
+++ b/src/components/Map.tsx
@@ -0,0 +1,108 @@
+import React, { useState, useEffect, useRef } from "react";
+import mapboxgl from 'mapbox-gl';
+
+import {
+  MAPBOX_ACCESS_TOKEN,
+  IMAGE_COORDINATES,
+  IMAGES_BASE_URL
+} from "../config";
+
+import "mapbox-gl/dist/mapbox-gl.css";
+
+interface MapProps {
+  slider: number;
+  images: string[];
+}
+
+export function Map({ slider, images }: MapProps) {
+  const mapContainer = useRef<HTMLDivElement>(null);
+  const map = useRef<mapboxgl.Map | null>(null);
+
+  const [lng] = useState(35);
+  const [lat] = useState(31.9);
+  const [zoom] = useState(6.3);
+  const [loaded, setLoaded] = useState(false);
+
+  const prevImages = useRef(images).current;
+
+  useEffect(() => {
+    if (map.current || !mapContainer.current) return;
+
+    map.current = new mapboxgl.Map({
+      accessToken: MAPBOX_ACCESS_TOKEN,
+      container: mapContainer.current,
+      style: "mapbox://styles/mapbox/dark-v9",
+      center: [lng, lat],
+      zoom: zoom,
+      minZoom: 5,
+      maxZoom: 10,
+      hash: false,
+    });
+
+    map.current.on("style.load", () => {
+      setLoaded(true);
+    });
+  }, [lng, lat, zoom]);
+
+  useEffect(() => {
+    if (!loaded || !map.current) return;
+
+    // remove old layers
+    prevImages.forEach((img) => {
+      if (!images.includes(img)) {
+        if (map.current?.getLayer(`layer-${img}`)) {
+          map.current.removeLayer(`layer-${img}`);
+        }
+        if (map.current?.getSource(`source-${img}`)) {
+          map.current.removeSource(`source-${img}`);
+        }
+      }
+    });
+
+    // add new layers
+    images.forEach((img, i) => {
+      if (!prevImages.includes(img) && !map.current?.getSource(`source-${img}`)) {
+        map.current?.addSource(`source-${img}`, {
+          type: "image",
+          url: `${IMAGES_BASE_URL}/${img}`,
+          coordinates: IMAGE_COORDINATES
+        });
+        map.current?.addLayer({
+          id: `layer-${img}`,
+          source: `source-${img}`,
+          type: "raster",
+          paint: {
+            "raster-opacity": 0,
+            "raster-opacity-transition": {
+              duration: 0
+            }
+          }
+        });
+      }
+    });
+  }, [loaded, prevImages, images]);
+
+  useEffect(() => {
+    if (!loaded || !images.length || !map.current) return;
+
+    if (images[slider]) {
+      map.current.setPaintProperty(`layer-${images[slider]}`, "raster-opacity", 0.85);
+    }
+
+    return () => {
+      // callback will hide the previous layer with the previous slider value
+      if (images[slider] && map.current?.getLayer(`layer-${images[slider]}`)) {
+        map.current.setPaintProperty(`layer-${images[slider]}`, "raster-opacity", 0);
+      }
+    };
+  }, [loaded, slider, images]);
+
+  return (
+    <div>
+      <div ref={mapContainer} className="map-container" style={{
+        height: "100vh",
+        width: "100vw"
+      }} />
+    </div>
+  );
+}
\ No newline at end of file
diff --git a/src/components/Slider.tsx b/src/components/Slider.tsx
new file mode 100644
index 0000000..2ee3fa1
--- /dev/null
+++ b/src/components/Slider.tsx
@@ -0,0 +1,43 @@
+import React from "react";
+import RcSlider from 'rc-slider';
+import { PLAYBACK_SLOTS } from "../config";
+import "rc-slider/assets/index.css";
+
+interface GeshemSliderProps {
+  playback?: string;
+  slider: number;
+  setSlider: React.Dispatch<React.SetStateAction<number>>;
+}
+
+export function Slider({ playback, slider, setSlider }: GeshemSliderProps) {
+  const handleStyle = {
+    height: 40,
+    width: 40,
+    border: 0,
+    marginTop: -10,
+    boxShadow: ".5px .5px 2px 1px rgba(0,0,0,.32)"
+  };
+
+  const railStyle = {
+    height: 20,
+    backgroundColor: "#3498db"
+  };
+
+  const trackStyle = {
+    display: "none"
+  };
+
+  return (
+    <div id="slider">
+      <RcSlider
+        min={0}
+        max={playback ? PLAYBACK_SLOTS : 9}
+        defaultValue={slider}
+        handleStyle={handleStyle}
+        railStyle={railStyle}
+        trackStyle={trackStyle}
+        onChange={(val) => setSlider(val as number)}
+      />
+    </div>
+  );
+}
\ No newline at end of file
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