Files
fyp/frontend/src/App.jsx

341 lines
16 KiB
JavaScript

import React, { useState, useEffect, useMemo } from "react";
import Sidebar from "./components/Sidebar";
import MapComponent from "./components/MapComponent";
import LoadingOverlay from "./components/LoadingOverlay";
import LuasPopup from "./components/LuasPopup";
const TRANSIENT_DATA_API = "https://281bc6mcm5.execute-api.us-east-1.amazonaws.com/transient_data";
const PERMANENT_DATA_API = "https://a6y312dpuj.execute-api.us-east-1.amazonaws.com/permanent_data";
const dataSources = [
{ id: "irish-rail-trains", name: "Irish Rail Trains", url: `${TRANSIENT_DATA_API}?objectType=IrishRailTrain` },
{ id: "irish-rail-stations", name: "Irish Rail Stations", url: `${PERMANENT_DATA_API}?objectType=IrishRailStation` },
{ id: "luas-stops", name: "Luas Stops", url: `${PERMANENT_DATA_API}?objectType=LuasStop` },
{ id: "bus-stops", name: "Bus Stops", url: `${PERMANENT_DATA_API}?objectType=BusStop` },
{ id: "buses", name: "Buses", url: `${TRANSIENT_DATA_API}?objectType=Bus` },
];
function App() {
const [selectedSources, setSelectedSources] = useState([]);
const [markers, setMarkers] = useState([]);
const [loading, setLoading] = useState(false);
const [clusteringEnabled, setClusteringEnabled] = useState(true);
// Search states: one is the raw user input, the other is the actual term we filter on
const [searchInput, setSearchInput] = useState("");
const [searchTerm, setSearchTerm] = useState("");
// Debounce effect
useEffect(() => {
const handler = setTimeout(() => {
setSearchTerm(searchInput);
}, 300); // Adjust this delay as desired
return () => {
clearTimeout(handler);
};
}, [searchInput]);
const fetchData = async (enabledSources) => {
setLoading(true);
try {
const newMarkers = (await Promise.all(
dataSources
.filter(({ id }) => enabledSources.includes(id))
.map(({ url }) => fetch(url).then((res) => res.json()))
))
.flat()
.map((item) => {
const showMainline = enabledSources.includes("mainline");
const showSuburban = enabledSources.includes("suburban");
const showDart = enabledSources.includes("dart");
const showRunning = enabledSources.includes("running");
const showNotYetRunning = enabledSources.includes("not-yet-running");
const showTerminated = enabledSources.includes("terminated");
const showEarly = enabledSources.includes("early");
const showOnTime = enabledSources.includes("on-time");
const showLate = enabledSources.includes("late");
const showRedLine = enabledSources.includes("red-line");
const showGreenLine = enabledSources.includes("green-line");
const showParkAndRide = enabledSources.includes("park-and-ride");
const showCycleAndRide = enabledSources.includes("cycle-and-ride");
const showEnabled = enabledSources.includes("enabled");
const showDisabled = enabledSources.includes("disabled");
let icon = item.objectType;
let popupContent;
let objectTitle;
let display = false;
let markerText = "";
switch (item.objectType) {
case "IrishRailTrain":
objectTitle = "Irish Rail Train: " + item.trainCode;
let trainType;
switch (item.trainType) {
case "M":
trainType = "Mainline";
icon = "mainline";
break;
case "S":
trainType = "Suburban";
icon = "suburban";
break;
case "D":
trainType = "DART";
icon = "dart";
break;
default:
trainType = "Unknown";
}
let trainStatus;
switch (item.trainStatus) {
case "R":
trainStatus = "Running";
break;
case "T":
trainStatus = "Terminated";
break;
case "N":
trainStatus = "Not yet running";
break;
default:
trainStatus = "Unknown";
}
const splitMessage = item.trainPublicMessage.split("\\n");
const match = splitMessage[1].match(/(-?\d+)\s+mins\s+late/);
const punctuality = match ? parseInt(match[1], 10) : NaN;
let latenessMessage;
let punctualityStr;
if (punctuality < 0) {
punctualityStr = "early";
} else if (punctuality === 0) {
punctualityStr = "On time";
} else if (punctuality > 0) {
punctualityStr = "late";
} else {
punctualityStr = "N/A";
}
// set icon depending on lateness of train and type
if (punctualityStr === "early") {
latenessMessage = -punctuality + " minute" + (punctuality === 1 ? "" : "s") + " early";
icon += "OnTime";
}
else if (punctualityStr === "On time") {
latenessMessage = punctualityStr;
icon += "OnTime";
}
else if (punctualityStr === "late") {
latenessMessage = punctuality + " minute" + (punctuality === 1 ? "" : "s") + " late";
if (trainStatus === "Running") {
icon += "Late";
}
else {
icon += "NotRunning";
}
}
else {
latenessMessage = "On time";
icon += "NotRunning";
}
popupContent = (
<div>
<h3>{objectTitle}</h3>
<ul>
<li><b>Train Details:</b> {splitMessage[1].split("(")[0]}</li>
<li><b>Train Type:</b> {trainType}</li>
<li><b>Status:</b> {trainStatus}</li>
<li><b>Direction:</b> {item.trainDirection}</li>
<li><b>Update:</b> {splitMessage[2]}</li>
<li><b>Punctuality:</b> {latenessMessage}</li>
</ul>
</div>
);
markerText = item.trainPublicMessage + " " + item.trainDirection;
display =
((item.latitude !== "0" && item.longitude !== "0") && // filter out trains with no location data
((showMainline && trainType == "Mainline") || (showSuburban && trainType == "Suburban") || (showDart && trainType == "DART")) &&
((showRunning && trainStatus == "Running") || (showNotYetRunning && trainStatus == "Not yet running") || (showTerminated && trainStatus == "Terminated")) &&
((trainStatus == "Running" && showEarly && punctualityStr == "early") || (trainStatus == "Running" && showOnTime && punctualityStr == "On time") || (trainStatus == "Running" && showLate && punctualityStr == "late")
|| (trainStatus == "Not yet running" && showNotYetRunning) || (trainStatus == "Terminated" && showTerminated)));
break;
case "IrishRailStation":
objectTitle = item.trainStationDesc + " Train Station";
popupContent = (
<div>
<h3>{objectTitle}</h3>
<ul>
<li><b>Train Station Name:</b> {item.trainStationDesc}</li>
<li><b>Train Station ID:</b> {item.trainStationID}</li>
<li><b>Train Station Code:</b> {item.trainStationCode}</li>
</ul>
</div>
);
markerText = item.trainStationCode + " " + item.trainStationDesc;
display = (item.latitude !== "0" && item.longitude !== "0");
break;
case "Bus":
objectTitle = item.busRouteAgencyName + ": " + item.busRouteShortName;
popupContent = (
<div>
<h3>{objectTitle}</h3>
<ul>
<li><b>Bus ID:</b> {item.busID}</li>
<li><b>Bus Route ID:</b> {item.busRoute}</li>
<li><b>Bus Route Short Name:</b> {item.busRouteShortName}</li>
<li><b>Bus Route Long Name:</b> {item.busRouteLongName}</li>
<li><b>Agency: </b> {item.busRouteAgencyName}</li>
</ul>
</div>
);
markerText = item.busRouteAgencyName + " " + item.busRouteShortName + " " + item.busRouteLongName;
display = (item.latitude !== "0" && item.longitude !== "0");
break;
case "BusStop":
objectTitle = item.busStopName + " Bus Stop";
popupContent = (
<div>
<h3>{objectTitle}</h3>
<ul>
<li><b>Bus Stop ID:</b> {item.busStopID}</li>
<li><b>Bus Stop Name:</b> {item.busStopName}</li>
<li><b>Bus Stop Code:</b> {item.busStopCode || "N/A"}</li>
</ul>
</div>
);
markerText = item.busStopName;
display = (item.latitude !== "0" && item.longitude !== "0");
break;
case "LuasStop":
objectTitle = item.luasStopName + " Luas Stop";
let luasLine;
switch (item.luasStopLineID) {
case "1":
luasLine = "Green Line";
icon += "Green";
break;
case "2":
luasLine = "Red Line";
icon += "Red";
break;
default:
luasLine = "N/A";
}
popupContent = (
<LuasPopup item={item} objectTitle={objectTitle} luasLine={luasLine} />
);
markerText = item.luasStopIrishName + " " + item.luasStopName + " " + luasLine;
display = (
(item.latitude !== "0" && item.longitude !== "0") &&
(showGreenLine && luasLine === "Green Line" || showRedLine && luasLine === "Red Line") &&
(showEnabled && item.luasStopIsEnabled === "1" || showDisabled && item.luasStopIsEnabled === "0") &&
(!showCycleAndRide || (showCycleAndRide && item.luasStopIsCycleAndRide === "1")) &&
(!showParkAndRide || (showParkAndRide && item.luasStopIsParkAndRide === "1"))
);
break;
default:
popupContent = (
<div>
<h3>{item.objectType}</h3>
</div>
);
markerText = `Unknown Object Type: ${item.objectType}`;
}
return {
coords: [item.latitude, item.longitude],
popup: popupContent,
icon: icon,
markerText: markerText.toLowerCase(),
display: display
};
})
.filter((marker) => marker.display);
setMarkers(newMarkers);
} catch (error) {
console.error("Error fetching data:", error);
}
setLoading(false);
};
// 2. Memoize the filtered markers so it recalculates only if `searchTerm` or `markers` changes
const filteredMarkers = useMemo(() => {
if (!searchTerm.trim()) {
return markers;
}
return markers.filter((marker) =>
marker.markerText.includes(searchTerm.toLowerCase())
);
}, [searchTerm, markers]);
return (
<div style={{ height: "100vh", width: "100vw", display: "flex", position: "relative" }}>
{loading && <LoadingOverlay message={"Loading data..."}/>}
{/* SEARCH BOX */}
<div
style={{
position: "absolute",
top: "1vh",
height: "5vh",
width: "250px", minWidth: "50px",
left: "50%",
transform: "translateX(-50%)",
zIndex: 1000
}}
>
<input
type="text"
value={searchInput}
onChange={(e) => setSearchInput(e.target.value)}
placeholder="Search..."
style={{
width: "250px", fontSize: "16px",
padding: "10px", background: "rgba(255, 255, 255, 0.9)", color: "black",
borderRadius: "10px", overflow: "hidden"
}}
/>
</div>
<Sidebar
selectedSources={selectedSources}
setSelectedSources={setSelectedSources}
clusteringEnabled={clusteringEnabled}
setClusteringEnabled={setClusteringEnabled}
fetchData={fetchData}
/>
<div style={{ flex: 1 }}>
<MapComponent markers={filteredMarkers} clusteringEnabled={clusteringEnabled} />
</div>
</div>
);
}
export default App;