nezha_dash/lib/prefetch.tsx

import { NezhaAPI, ServerApi } from "@/app/types/nezha-api";
import { MakeOptional } from "@/app/types/utils";
import { error } from "console";

export async function GetNezhaData() {
    if (!process.env.NezhaBaseUrl) {
        error("NezhaBaseUrl is not set");
        return;
    }
    // Remove trailing slash
    var nezhaBaseUrl = process.env.NezhaBaseUrl;

    if (process.env.NezhaBaseUrl[process.env.NezhaBaseUrl.length - 1] === "/") {
        nezhaBaseUrl = process.env.NezhaBaseUrl.slice(0, -1);
    }
    try {
        const response = await fetch(nezhaBaseUrl + "/api/v1/server/details", {
            headers: {
                Authorization: process.env.NezhaAuth as string,
            },
            next: {
                revalidate: 1,
            },
        });
        const nezhaData = (await response.json()).result as NezhaAPI[];
        const data: ServerApi = {
            live_servers: 0,
            offline_servers: 0,
            total_bandwidth: 0,
            result: [],
        };
        const timestamp = Date.now() / 1000;
        data.result = nezhaData.map(
            (element: MakeOptional<NezhaAPI, "ipv4" | "ipv6" | "valid_ip">) => {
                if (timestamp - element.last_active > 300) {
                    data.offline_servers += 1;
                } else {
                    data.live_servers += 1;
                }
                data.total_bandwidth += element.status.NetOutTransfer;

                delete element.ipv4;
                delete element.ipv6;
                delete element.valid_ip;

                return element;
            },
        );

        return data;
    } catch (error) {
        return error;
    }
}