@dualjack/svelte-tools/dist/tools/fromStoreTwoWayBinding/fromStoreToRune.svelte.js

### Why? Because runes are not safe to toss around by design.

import { get } from "svelte/store";
import { untrack } from "svelte";
import { cloneDeep, isEqual } from "lodash-es";
function isWritable(store) {
    return typeof store.set === 'function';
}
export function fromStoreTwoWayBinding(store) {
    let value = $state(cloneDeep(get(store)));
    let oldValue = cloneDeep(value); //  Save deep copy of initial value.
    store.subscribe((v) => {
        if (!isEqual(v, oldValue)) {
            oldValue = cloneDeep(v);
            value = v;
        }
    });
    $effect.root(() => {
        $effect.pre(() => {
            const newValue = cloneDeep(value); //  Track it everytime it changes but capture the result. Do not use the Proxy.
            untrack(() => {
                if (!isEqual(newValue, oldValue)) {
                    oldValue = cloneDeep(newValue);
                    if (isWritable(store)) {
                        store.set(cloneDeep(newValue));
                    }
                }
            });
        });
    });
    return {
        get current() {
            return value;
        },
        set current(v) {
            value = v;
        }
    };
}