Parsing GPX files.

src/store/index.ts

@@ -1,9 +1,10 @@
 import { configureStore } from '@reduxjs/toolkit';
 
 import mapReducer from './map';
+import tracksReducer from './tracks';
 
 const store = configureStore({
-  reducer: { map: mapReducer },
+  reducer: { map: mapReducer, tracks: tracksReducer },
 });
 
 export default store;

src/store/tracks.ts

@@ -0,0 +1,29 @@
+import { createSlice } from '@reduxjs/toolkit';
+
+interface TracksState {
+  index: number;
+  tracks: { [index: string]: any };
+}
+
+const initialTracks: TracksState = {
+  index: 0,
+  tracks: {},
+};
+
+const tracksSlice = createSlice({
+  name: 'tracks',
+  initialState: initialTracks,
+  reducers: {
+    add: (state, action) => {
+      state.tracks[action.payload.id] = action.payload.track;
+    },
+    push: (state, action) => {
+      state.tracks['$' + state.index] = action.payload;
+      state.index++;
+    },
+  },
+});
+
+export const tracksActions = tracksSlice.actions;
+
+export default tracksSlice.reducer;