save version to redux store persistence

src/main/redux/middleware/persistence.ts

@@ -35,6 +35,7 @@ export const reduxPersistMiddleware: Middleware
                         lastReadingQueue: prevState.publication.lastReadingQueue,
                     },
                     opds: prevState.opds,
+                    version: prevState.version,
                 };
 
                 const persistNextState: PersistRootState = {
@@ -47,6 +48,7 @@ export const reduxPersistMiddleware: Middleware
                         lastReadingQueue: nextState.publication.lastReadingQueue,
                     },
                     opds: nextState.opds,
+                    version: nextState.version,
                 };
 
                 const ops = createPatch(persistPrevState, persistNextState);

src/main/redux/reducers/index.ts

@@ -13,7 +13,7 @@ import { RootState } from "readium-desktop/main/redux/states";
 import { priorityQueueReducer } from "readium-desktop/utils/redux-reducers/pqueue.reducer";
 import { combineReducers } from "redux";
 
-import { publicationActions, winActions } from "../actions";
+import { appActions, publicationActions, winActions } from "../actions";
 import { lcpReducer } from "./lcp";
 import { readerDefaultConfigReducer } from "./reader/defaultConfig";
 import { sessionReducer } from "./session";
@@ -23,6 +23,7 @@ import { winSessionReaderReducer } from "./win/session/reader";
 import { winModeReducer } from "../../../common/redux/reducers/winModeReducer";
 import { publicationDbReducers } from "./publication/db";
 import { opdsDbReducers } from "./opds/db";
+import { _APP_VERSION } from "readium-desktop/preprocessor-directives";
 
 export const rootReducer = combineReducers<RootState>({
     session: sessionReducer,
@@ -70,4 +71,5 @@ export const rootReducer = combineReducers<RootState>({
     opds: combineReducers({
         catalog: opdsDbReducers,
     }),
+    version: (state, action) => action.type === appActions.initSuccess.ID ? _APP_VERSION : (state === undefined ? null : state),
 });

src/main/redux/sagas/index.ts

@@ -24,6 +24,7 @@ import * as persist from "./persist";
 import * as reader from "./reader";
 import * as streamer from "./streamer";
 import * as win from "./win";
+import * as telemetry from "./telemetry";
 
 // Logger
 const filename_ = "readium-desktop:main:saga:app";
@@ -63,6 +64,8 @@ export function* rootSaga() {
     yield api.saga();
     // yield spawnLeading(api.watchers, (e) => error("main:rootSaga:api", e));
 
+    yield telemetry.saga();
+
     yield streamer.saga();
     // yield spawnLeading(streamer.watchers, (e) => error("main:rootSaga:streamer", e));
 

src/main/redux/sagas/persist.ts

@@ -38,6 +38,7 @@ const persistStateToFs = async (nextState: RootState) => {
         session: nextState.session,
         i18n: nextState.i18n,
         opds: nextState.opds,
+        version: nextState.version,
     };
 
     await fsp.writeFile(stateFilePath, JSON.stringify(value), {encoding: "utf8"});

src/main/redux/sagas/telemetry.ts

@@ -0,0 +1,24 @@
+// ==LICENSE-BEGIN==
+// Copyright 2017 European Digital Reading Lab. All rights reserved.
+// Licensed to the Readium Foundation under one or more contributor license agreements.
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file exposed on Github (readium) in the project repository.
+// ==LICENSE-END==
+
+import * as debug_ from "debug";
+import { _APP_VERSION } from "readium-desktop/preprocessor-directives";
+import { select } from "typed-redux-saga";
+import { RootState } from "../states";
+
+// Logger
+const filename_ = "readium-desktop:main:redux:sagas:telemetry";
+const debug = debug_(filename_);
+
+export function* saga() {
+
+    const version = yield* select((state: RootState) => state.version);
+
+    if (_APP_VERSION !== version) {
+        debug("VERSION MISMATCH", _APP_VERSION, "vs", version);
+    }
+}

src/main/redux/states/index.ts

@@ -48,8 +48,9 @@ export interface RootState {
     keyboard: KeyboardState;
     opds: {
         catalog: OpdsFeedDocument[];
-    }
+    },
+    version: string;
 }
 
 
-export type PersistRootState = Pick<RootState, "win" | "publication" | "reader" | "session" | "i18n" | "opds">;
+export type PersistRootState = Pick<RootState, "win" | "publication" | "reader" | "session" | "i18n" | "opds" | "version">;