main-site/pages/services.tsx

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import Head from 'next/head'
import Link from 'next/link'
import styles from '/styles/Home.module.css'
import { Service, ServiceStatus, ServiceType, ServiceLocation } from '../interfaces/Services';
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import Dockerode from 'dockerode';
import { ReactElement } from 'react'
import useSWR from 'swr';
import Image from 'next/image';
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const fetcher = (url: string) => fetch(url).then((res) => res.json())
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function Services() {
const { initialData, fullData, loadingInitial, loadingFull, error } = useServices();
let content: ReactElement = <></>;
if (error) { content = <div>Error loading data</div> }
else if (loadingInitial) { content = <div>Loading</div> }
else if (loadingFull) {
content =
<div className={styles.grid}>
{initialData?.map((item: Service) => (
<Link className={styles.contentcard} key={item.name} href={item.href}>
<div className={styles.contentTitle}>
{
item.icon ? (
<div className={styles.contentIcon}>
<Image alt="icon" src={item.icon} layout="fill" objectFit="contain"></Image>
</div>
) : (<></>)
}
<h2>{item.name}</h2>
</div>
<div className={item.status === ServiceStatus.online ? styles.statusOnline : item.status === ServiceStatus.offline ? styles.statusOffline : styles.statusLoading}>
{item.status}
</div>
<div><p>{item.desc}</p></div>
<div className={styles.cardwarn}><p>{item.warn}</p></div>
</Link>
))}
</div>
}
else if (fullData) {
content =
<div className={styles.grid}>
{fullData.map((item: Service) => (
<Link className={styles.contentcard} key={item.name} href={item.href}>
<div className={styles.contentTitle}>
{
item.icon ? (
<div className={styles.contentIcon}>
<Image alt="icon" src={item.icon} fill></Image>
</div>
) : (<></>)
}
<h2>{item.name}</h2>
</div>
<div className={item.status === ServiceStatus.online ? styles.statusOnline : item.status === ServiceStatus.offline ? styles.statusOffline : styles.statusLoading}>
{item.status}
</div>
<div><p>{item.desc}</p></div>
<div className={styles.cardwarn}><p>{item.warn}</p></div>
</Link>
))}
</div>
}
else {
content = <div>Error loading data</div>
}
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return (
<>
<Head>
<title>Neshura Servers</title>
<meta charSet='utf-8' />
<link rel="icon" href="/favicon.ico" />
<meta name="description" content="Lists all available Services, most likely up-to-date" />
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</Head>
<h1 className={styles.title}>
Service List
</h1>
<p className={styles.description}>
Lists all available Services, most likely up-to-date
</p>
{content}
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</>
)
}
async function getStatus(entry: Service, containers: Dockerode.ContainerInfo[]) {
// Currently the only location supporting different fetching depending on type is brr7-4800u
// Others to follow but low prio as this is currently the only location used
// Location BRR7-4800U
if (entry.location === ServiceLocation.brr7_4800u) {
// Type APP
if (entry.type === ServiceType.app) {
await fetch(entry.href)
.then((response) => {
if (response.ok) {
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switch (response.status) {
case 200:
case 301:
case 302:
entry.status = ServiceStatus.online;
break;
default:
entry.status = ServiceStatus.offline;
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}
}
else {
entry.status = ServiceStatus.offline;
}
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})
.catch((error) => {
console.error("Error pinging Website: ", error);
entry.status = ServiceStatus.error;
})
}
// Type Docker
else if (entry.type === ServiceType.docker) {
if (entry.name !== null) {
let found = false;
for (let i = 0; i < containers.length; i++) {
const container = containers[i];
// Docker API returns container names with / prepended
if (containers[i].Names.includes("/" + entry.docker_container_name)) {
// so far only "running" is properly implemented, mroe cases to follow as needed
switch (container.State) {
case "running":
entry.status = ServiceStatus.online;
break;
default:
console.log("Container Status " + container.State + " has no case implemented");
entry.status = ServiceStatus.offline;
}
found = true;
// cancel the for
break;
}
// If container name is not missing the container is set to offline
else {
entry.status = ServiceStatus.offline;
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}
}
if (!found) {
console.warn("Container for " + entry.name + " could not be found");
}
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}
// if name is null do not enter for loop
else {
console.error("Container Name not specified");
entry.status = ServiceStatus.error;
}
}
// If no Type matches
else {
console.warn("Service Type for Service " + entry.name + " not specified or invalid");
entry.status = ServiceStatus.error;
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}
}
// Location Other
// TODO: implement docker type for other locations
else if (entry.location === ServiceLocation.other) {
// Currently uses the same handling as app type for the other location
await fetch(entry.href)
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.then((response) => {
if (response.ok) {
switch (response.status) {
case 200:
case 301:
case 302:
entry.status = ServiceStatus.online;
break;
default:
entry.status = ServiceStatus.offline;
}
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}
else {
entry.status = ServiceStatus.offline;
}
})
.catch((error) => {
console.error("Error pinging Website: ", error);
entry.status = ServiceStatus.error;
})
}
// If no Location matches
else {
console.warn("Service Location for Service " + entry.name + " not specified");
entry.status = ServiceStatus.error;
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}
return entry;
}
const fetchFullDataArray = (containerData: Dockerode.ContainerInfo[], dataSet: Service[]) => {
const fetchStatus = (entry: Service) => getStatus(entry, containerData);
return Promise.all(dataSet.map(fetchStatus));
}
function useServices() {
const { data: containerData, error: containerError } = useSWR('/api/containers', fetcher);
const { data: initialData, error: initialError } = useSWR('/api/services', fetcher);
const loadingInitial = !initialData && !initialError
const { data: fullData, error: fullError } = useSWR((initialData && containerData) ? [containerData, initialData] : null, fetchFullDataArray)
const loadingFull = !fullData && !fullError
return {
initialData,
fullData,
loadingInitial,
loadingFull,
error: initialError || fullError || containerError,
};
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}
export default Services