@opengis/bi/server/routes/map/controllers/utils/downloadClusterData.js

BI data visualization module

import { config, logger, pgClients } from '@opengis/fastify-table/utils.js';

export default async function downloadClusterData({ pg = pgClients.client, cluster }) {
    if (!pg || !cluster) return null;
    const res = await fetch(`https://cdn.softpro.ua/data/bi/${cluster}-ua.geojson`);
    if (res?.status !== 200) {
        return {
            message: `cluster file not found: ${cluster}-ua.json`,
            status: 404,
        };
    }
    try {
        const geojson = await res.json();
        const features = geojson?.features?.filter(
            (el, idx, arr) => el?.geometry &&
                arr.map((item) => item.properties.name)
                    .indexOf(el.properties.name) === idx
        ); // unique
        if (!features?.length) {
            return {
                message: `cluster file empty: ${cluster}-ua.json`,
                status: 400,
            };
        }
        const { count = 0 } = await pg.query(`select count(*)::int from bi.cluster where type=$1`, [cluster])
            .then((res1) => res1.rows?.[0] || {});
        if (count !== features?.length || config.debug) {
            // await pg.query(`delete from bi.cluster where type=$1`, [cluster]);
            const values = features?.map((el) => `('${el.properties.codifier?.replace(/'/g, "''") || ''}','${el.properties.name?.replace(/'/g, "''") || ''}', '${cluster}', ST_GeomFromGeoJSON('${JSON.stringify(el.geometry)}')::geometry)`).join(',');

            const { rowCount } = await pg.query(`insert into bi.cluster (codifier,title,type,geom) 
            values ${values} on conflict(title,type) do update set codifier=excluded.codifier, geom=excluded.geom`);
            logger.file('bi/clusterVtile', { cluster, rowCount });
        }
    } catch (err) {
        logger.file('bi/clusterVtile/error', {
            error: err.toString(),
            filename: `${cluster}-ua.json`,
        });
        return {
            message: `cluster file import error: ${cluster}-ua.json`,
            status: 500,
        };
    }
}