1 files changed, 38 insertions, 0 deletions

diff --git a/packages/main/src/services/MainEnv.ts b/packages/main/src/services/MainEnv.ts
new file mode 100644
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+++ b/packages/main/src/services/MainEnv.ts
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+/*
+ * Copyright (C)  2021-2022 Kristóf Marussy <kristof@marussy.com>
+ *
+ * This file is part of Sophie.
+ *
+ * Sophie is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { IAnyStateTreeNode, getEnv as getAnyEnv } from 'mobx-state-tree';
+
+import type { ConfigPersistence } from './ConfigPersistence';
+
+export interface MainEnv {
+  configPersistence: ConfigPersistence;
+}
+
+/**
+ * Gets a well-typed environment from `model`.
+ *
+ * Only useable inside state trees created by `createAndConnectRootStore`.
+ *
+ * @param model The state tree node.
+ */
+export function getEnv(model: IAnyStateTreeNode): MainEnv {
+  return getAnyEnv<MainEnv>(model);
+}