feat: load ium state

src/app/context/appState.tsx

@@ -31,7 +31,7 @@ export interface AppState {
   };
 }
 
-function getEmptyAppState(): AppState {
+export function getEmptyAppState(): AppState {
   return {
     data: getEmptyDataState(),
     isLoading: false,
@@ -86,6 +86,7 @@ type AppStateAction =
   | { type: 'LOAD_START' }
   | { type: 'LOAD_END' }
   | { type: 'ADD_MEASUREMENTS'; payload: Measurements }
+  | { type: 'LOAD_STATE'; payload: AppState }
   | {
       type: 'SELECT_MEASUREMENT';
       payload: { id: string; kind: MeasurementKind };
@@ -163,6 +164,12 @@ function actionHandler(draft: Draft<AppState>, action: AppStateAction) {
       draft.isLoading = false;
       return;
     }
+    case 'LOAD_STATE': {
+      const { data, view } = action.payload;
+      draft.data = data;
+      draft.view = view;
+      return;
+    }
 
     default:
       assertUnreachable(type);

src/app/context/load.ts

@@ -10,7 +10,7 @@ import { cary500Loader } from '../data/loaders/proprietary/agilent/cary500Loader
 import { spcLoader } from '../data/loaders/spcLoader';
 import { wdfLoader } from '../data/loaders/wdfLoader';
 
-import type { AppDispatch } from './appState';
+import type { AppDispatch, AppState } from './appState';
 
 const options = {
   loaders: [
@@ -28,18 +28,32 @@ const options = {
     ],
   },
 };
+
 export async function loadFiles(
   files: File[] | FileCollection,
   dispatch: AppDispatch,
 ) {
   dispatch({ type: 'LOAD_START' });
   try {
-    const fileCollection =
-      files instanceof FileCollection
-        ? files
-        : await fileCollectionFromFiles(files);
-    const measurements = await loadMeasurements(fileCollection, options);
-    dispatch({ type: 'ADD_MEASUREMENTS', payload: measurements });
+    if (files[0] && !files[1] && files[0].name.match(/\.ium$/i)) {
+      const data = await files[0].text();
+      const appState = JSON.parse(data);
+      const payload: AppState = {
+        ...appState,
+        isLoading: true,
+      };
+      dispatch({
+        type: 'LOAD_STATE',
+        payload,
+      });
+    } else {
+      const fileCollection =
+        files instanceof FileCollection
+          ? files
+          : await fileCollectionFromFiles(files);
+      const data = await loadMeasurements(fileCollection, options);
+      dispatch({ type: 'ADD_MEASUREMENTS', payload: data });
+    }
   } finally {
     dispatch({ type: 'LOAD_END' });
   }

src/app/data/append.ts

@@ -46,9 +46,9 @@ export async function loadMeasurements(
   const measurements: Measurements = getEmptyMeasurements();
   const { loaders = [], enhancers = {} } = options;
   for (const loader of loaders) {
-    const loaderMeasurements = await loader(fileCollection);
-    enhance(loaderMeasurements, enhancers);
-    mergeMeasurements(measurements, loaderMeasurements);
+    const loaderData = await loader(fileCollection);
+    enhance(loaderData, enhancers);
+    mergeMeasurements(measurements, loaderData);
   }
   return measurements;
 }