Base générale d'UI

client/src/store/reducers/boards.js

@@ -0,0 +1,41 @@
+import { SAVE_BOARD_SUCCESS, FETCH_BOARDS_SUCCESS } from "../actions/boards";
+
+export const defaultState = {
+  byID: {},
+};
+
+export function boardsReducer(state = defaultState, action) {
+  switch(action.type) {
+    case SAVE_BOARD_SUCCESS:
+      return handleSaveBoardSuccess(state, action);
+    case FETCH_BOARDS_SUCCESS:
+      return handleFetchBoardsSuccess(state, action);
+    default:
+      return state;
+  }
+}
+
+function handleSaveBoardSuccess(state, action) {
+  return {
+    ...state,
+    byID: {
+      ...state.byID,
+      [action.board.id.toString()]: {
+        ...action.board,
+      }
+    }
+  };
+}
+
+function handleFetchBoardsSuccess(state, action) {
+  const boardsByID = action.boards.reduce((byID, board) => {
+    byID[board.id] = board;
+    return byID;
+  }, {});
+  return {
+    ...state,
+    byID: {
+      ...boardsByID,
+    }
+  };
+}