TS migration. #2288. (#2328)

* Added TS. Updated build and linting config. Added types.

* [ts-migrate][.] Rename files from JS/JSX to TS/TSX

Co-authored-by: ts-migrate <>

* [ts-migrate][.] Run TS Migrate

Co-authored-by: ts-migrate <>

* Corrected files mangled by ts-migrate.

* Updated lint config, minor linting.

* Re-enabled Husky.

* Updated tests and config.

* Reverted webpack devtool config.

* Removed obsolete snapshots.

* Added annotations snap.

* Updated tsconfig includes wrt linting.

* Removed ts-migrate.

Co-authored-by: Timmy Huang <tihuan@users.noreply.github.com>

client/__tests__/reducers/genesetsUI.test.ts

@@ -0,0 +1,75 @@
+import genesetsUIReducer from "../../src/reducers/genesetsUI";
+
+// Format: GeneSetsUI(state,action)
+
+const initialState = {
+  createGenesetModeActive: false,
+  isEditingGenesetName: false,
+  isAddingGenesToGeneset: false,
+};
+
+/* initial */
+describe("geneset UI states", () => {
+  test("initial state, some other action", () => {
+    expect(
+      genesetsUIReducer(undefined, {
+        type: "foo",
+      })
+    ).toMatchObject(initialState);
+  });
+  test("geneset: activate add new geneset mode", () => {
+    expect(
+      genesetsUIReducer(initialState, {
+        type: "geneset: activate add new geneset mode",
+      })
+    ).toMatchObject({
+      createGenesetModeActive: true,
+      isEditingGenesetName: false,
+      isAddingGenesToGeneset: false,
+    });
+  });
+  test("geneset: disable create geneset mode", () => {
+    expect(
+      genesetsUIReducer(undefined, { isEditingGenesetName: false })
+    ).toMatchObject(initialState);
+  });
+
+  test("activate add new genes mode", () => {
+    expect(
+      genesetsUIReducer(undefined, {
+        type: "geneset: activate add new genes mode",
+        geneset: "a geneset name",
+      })
+    ).toMatchObject({
+      createGenesetModeActive: false,
+      isEditingGenesetName: false,
+      isAddingGenesToGeneset: "a geneset name",
+    });
+  });
+  test("disable create geneset mode", () => {
+    expect(
+      genesetsUIReducer(undefined, {
+        type: "geneset: disable create geneset mode",
+      })
+    ).toMatchObject(initialState);
+  });
+  test("activate rename geneset mode", () => {
+    expect(
+      genesetsUIReducer(undefined, {
+        type: "geneset: activate rename geneset mode",
+        data: "a geneset name",
+      })
+    ).toMatchObject({
+      createGenesetModeActive: false,
+      isEditingGenesetName: "a geneset name",
+      isAddingGenesToGeneset: false,
+    });
+  });
+  test("disable rename geneset mode", () => {
+    expect(
+      genesetsUIReducer(undefined, {
+        type: "geneset: disable rename geneset mode",
+      })
+    ).toMatchObject(initialState);
+  });
+});