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// SPDX-FileCopyrightText: 2024 Shota FUJI <pockawoooh@gmail.com>
// SPDX-License-Identifier: AGPL-3.0-only

import { openDB } from "idb";

import { CONTEXT } from "./symbols";
import { type Context, type RPCMessage } from "./types";
import { service } from "./yamori/service";

class IDBBackend {
	[CONTEXT]: Context;

	constructor(ctx: Context) {
		this[CONTEXT] = ctx;
	}

	handle(request: RPCMessage): Promise<Uint8Array> {
		return service(request, this[CONTEXT]);
	}
}

export async function idbBackend(): Promise<IDBBackend> {
	return new IDBBackend({
		db: await openDB("yamori", 1, {
			upgrade(db, oldVersion, _newVersion, _transaction, _event) {
				if (oldVersion < 1) {
					const workspaces = db.createObjectStore("workspaces", {
						keyPath: "id",
					});

					workspaces.createIndex("updatedAt", "updatedAt", {
						unique: false,
					});
				}
			},
		}),
	});
}