lucent-laravel/front/js/svelte/edges/sortEdges.js

export function sortByField(from, to, edges, fieldName) {
    if (from === to) {
        return edges;
    }
    let edgesTosort = edges?.filter((ed) => ed.field === fieldName && ed.depth === 1 ) ?? [];
    let remainingEdge = edges?.filter((ed) => !(ed.field === fieldName && ed.depth === 1)) ?? [];

    edgesTosort = array_move(edgesTosort,from, to);
    return [...remainingEdge, ...edgesTosort];
}

function array_move(arr, old_index, new_index) {
    if (new_index >= arr.length) {
        var k = new_index - arr.length + 1;
        while (k--) {
            arr.push(undefined);
        }
    }
    arr.splice(new_index, 0, arr.splice(old_index, 1)[0]);
    return arr; // for testing
};