import type {DocHandleChangePayload} from "@automerge/automerge-repo/slim"
import {apply, fromAutomerge} from "cabbages"

/**
 * convert automerge patches to solid producer operations
 * @param payload the
 * [DocHandleChangePayload](https://automerge.org/automerge-repo/interfaces/_automerge_automerge_repo.DocHandleChangePayload.html)
 * from the handle.on("change
 * @returns a callback for an immer-like function. e.g.
 * [produce](https://docs.solidjs.com/reference/store-utilities/produce) for
 * [Solid
 * Stores](https://docs.solidjs.com/reference/store-utilities/create-store)
 */
export default function autoproduce<T>(payload: DocHandleChangePayload<T>) {
	return (doc: T) => {
		for (let patch of payload.patches) {
			apply(doc, ...fromAutomerge(patch, payload))
		}
	}
}