ui: Simplify data fetching in frontend

This pull request aims to simplify the data fetching logic in the OpenDC frontend.
Previously, the frontend used Redux extensively to sync the server state with the 
client state, which introduced a lot of unnecessary complexity. 

With this pull request, we move most of the data fetching logic out of Redux and 
instead use React Query to perform the logic for fetching and caching API requests. 

* Move all server data except topologies outside Redux
* Use React Query for fetching server data
* (De)normalize topology using Normalizr
* Remove current ids state from Redux 
* Combine fetching of project relations

6 files changed, 7 insertions, 90 deletions

diff --git a/opendc-web/opendc-web-ui/src/redux/reducers/construction-mode.js b/opendc-web/opendc-web-ui/src/redux/reducers/construction-mode.js
index 257dddd2..5bac7fea 100644
--- a/opendc-web/opendc-web-ui/src/redux/reducers/construction-mode.js
+++ b/opendc-web/opendc-web-ui/src/redux/reducers/construction-mode.js
@@ -9,8 +9,6 @@ import {
     START_ROOM_EDIT,
 } from '../actions/topology/building'
 import { DELETE_ROOM, START_RACK_CONSTRUCTION, STOP_RACK_CONSTRUCTION } from '../actions/topology/room'
-import { OPEN_PORTFOLIO_SUCCEEDED } from '../actions/portfolios'
-import { OPEN_SCENARIO_SUCCEEDED } from '../actions/scenarios'
 
 export function currentRoomInConstruction(state = '-1', action) {
     switch (action.type) {
@@ -20,8 +18,6 @@ export function currentRoomInConstruction(state = '-1', action) {
             return action.roomId
         case CANCEL_NEW_ROOM_CONSTRUCTION_SUCCEEDED:
         case FINISH_NEW_ROOM_CONSTRUCTION:
-        case OPEN_PORTFOLIO_SUCCEEDED:
-        case OPEN_SCENARIO_SUCCEEDED:
         case FINISH_ROOM_EDIT:
         case SET_CURRENT_TOPOLOGY:
         case DELETE_ROOM:
@@ -36,8 +32,6 @@ export function inRackConstructionMode(state = false, action) {
         case START_RACK_CONSTRUCTION:
             return true
         case STOP_RACK_CONSTRUCTION:
-        case OPEN_PORTFOLIO_SUCCEEDED:
-        case OPEN_SCENARIO_SUCCEEDED:
         case SET_CURRENT_TOPOLOGY:
         case GO_DOWN_ONE_INTERACTION_LEVEL:
             return false
diff --git a/opendc-web/opendc-web-ui/src/redux/reducers/current-ids.js b/opendc-web/opendc-web-ui/src/redux/reducers/current-ids.js
index 9b46aa60..c0baf567 100644
--- a/opendc-web/opendc-web-ui/src/redux/reducers/current-ids.js
+++ b/opendc-web/opendc-web-ui/src/redux/reducers/current-ids.js
@@ -1,7 +1,4 @@
-import { OPEN_PORTFOLIO_SUCCEEDED, SET_CURRENT_PORTFOLIO } from '../actions/portfolios'
-import { OPEN_PROJECT_SUCCEEDED } from '../actions/projects'
 import { SET_CURRENT_TOPOLOGY } from '../actions/topology/building'
-import { OPEN_SCENARIO_SUCCEEDED, SET_CURRENT_SCENARIO } from '../actions/scenarios'
 
 export function currentTopologyId(state = '-1', action) {
     switch (action.type) {
@@ -11,44 +8,3 @@ export function currentTopologyId(state = '-1', action) {
             return state
     }
 }
-
-export function currentProjectId(state = '-1', action) {
-    switch (action.type) {
-        case OPEN_PROJECT_SUCCEEDED:
-            return action.id
-        case OPEN_PORTFOLIO_SUCCEEDED:
-        case OPEN_SCENARIO_SUCCEEDED:
-            return action.projectId
-        default:
-            return state
-    }
-}
-
-export function currentPortfolioId(state = '-1', action) {
-    switch (action.type) {
-        case OPEN_PORTFOLIO_SUCCEEDED:
-        case SET_CURRENT_PORTFOLIO:
-        case SET_CURRENT_SCENARIO:
-            return action.portfolioId
-        case OPEN_SCENARIO_SUCCEEDED:
-            return action.portfolioId
-        case OPEN_PROJECT_SUCCEEDED:
-        case SET_CURRENT_TOPOLOGY:
-            return '-1'
-        default:
-            return state
-    }
-}
-export function currentScenarioId(state = '-1', action) {
-    switch (action.type) {
-        case OPEN_SCENARIO_SUCCEEDED:
-        case SET_CURRENT_SCENARIO:
-            return action.scenarioId
-        case OPEN_PORTFOLIO_SUCCEEDED:
-        case SET_CURRENT_TOPOLOGY:
-        case OPEN_PROJECT_SUCCEEDED:
-            return '-1'
-        default:
-            return state
-    }
-}
diff --git a/opendc-web/opendc-web-ui/src/redux/reducers/index.js b/opendc-web/opendc-web-ui/src/redux/reducers/index.js
index b143d417..1b17a206 100644
--- a/opendc-web/opendc-web-ui/src/redux/reducers/index.js
+++ b/opendc-web/opendc-web-ui/src/redux/reducers/index.js
@@ -1,20 +1,15 @@
 import { combineReducers } from 'redux'
 import { construction } from './construction-mode'
-import { currentPortfolioId, currentProjectId, currentScenarioId, currentTopologyId } from './current-ids'
+import { currentTopologyId } from './current-ids'
 import { interactionLevel } from './interaction-level'
 import { map } from './map'
 import { objects } from './objects'
-import { projects } from './projects'
 
 const rootReducer = combineReducers({
     objects,
-    projects,
     construction,
     map,
-    currentProjectId,
     currentTopologyId,
-    currentPortfolioId,
-    currentScenarioId,
     interactionLevel,
 })
 
diff --git a/opendc-web/opendc-web-ui/src/redux/reducers/interaction-level.js b/opendc-web/opendc-web-ui/src/redux/reducers/interaction-level.js
index eafcb269..9f23949f 100644
--- a/opendc-web/opendc-web-ui/src/redux/reducers/interaction-level.js
+++ b/opendc-web/opendc-web-ui/src/redux/reducers/interaction-level.js
@@ -1,19 +1,13 @@
-import { OPEN_PORTFOLIO_SUCCEEDED } from '../actions/portfolios'
 import {
     GO_DOWN_ONE_INTERACTION_LEVEL,
     GO_FROM_BUILDING_TO_ROOM,
     GO_FROM_RACK_TO_MACHINE,
     GO_FROM_ROOM_TO_RACK,
 } from '../actions/interaction-level'
-import { OPEN_PROJECT_SUCCEEDED } from '../actions/projects'
 import { SET_CURRENT_TOPOLOGY } from '../actions/topology/building'
-import { OPEN_SCENARIO_SUCCEEDED } from '../actions/scenarios'
 
 export function interactionLevel(state = { mode: 'BUILDING' }, action) {
     switch (action.type) {
-        case OPEN_PORTFOLIO_SUCCEEDED:
-        case OPEN_SCENARIO_SUCCEEDED:
-        case OPEN_PROJECT_SUCCEEDED:
         case SET_CURRENT_TOPOLOGY:
             return {
                 mode: 'BUILDING',
diff --git a/opendc-web/opendc-web-ui/src/redux/reducers/objects.js b/opendc-web/opendc-web-ui/src/redux/reducers/objects.js
index a2483b43..11f6d353 100644
--- a/opendc-web/opendc-web-ui/src/redux/reducers/objects.js
+++ b/opendc-web/opendc-web-ui/src/redux/reducers/objects.js
@@ -6,11 +6,9 @@ import {
     REMOVE_ID_FROM_STORE_OBJECT_LIST_PROP,
 } from '../actions/objects'
 import { CPU_UNITS, GPU_UNITS, MEMORY_UNITS, STORAGE_UNITS } from '../../util/unit-specifications'
+import { STORE_TOPOLOGY } from '../actions/topologies'
 
 export const objects = combineReducers({
-    project: object('project'),
-    user: object('user'),
-    authorization: objectWithId('authorization', (object) => [object.userId, object.projectId]),
     cpu: object('cpu', CPU_UNITS),
     gpu: object('gpu', GPU_UNITS),
     memory: object('memory', MEMORY_UNITS),
@@ -20,10 +18,6 @@ export const objects = combineReducers({
     tile: object('tile'),
     room: object('room'),
     topology: object('topology'),
-    trace: object('trace'),
-    scheduler: object('scheduler'),
-    portfolio: object('portfolio'),
-    scenario: object('scenario'),
     prefab: object('prefab'),
 })
 
@@ -33,18 +27,16 @@ function object(type, defaultState = {}) {
 
 function objectWithId(type, getId, defaultState = {}) {
     return (state = defaultState, action) => {
-        if (action.objectType !== type) {
+        if (action.type === STORE_TOPOLOGY) {
+            return { ...state, ...action.entities[type] }
+        } else if (action.objectType !== type) {
             return state
         }
 
         if (action.type === ADD_TO_STORE) {
-            return Object.assign({}, state, {
-                [getId(action.object)]: action.object,
-            })
+            return { ...state, [getId(action.object)]: action.object }
         } else if (action.type === ADD_PROP_TO_STORE_OBJECT) {
-            return Object.assign({}, state, {
-                [action.objectId]: Object.assign({}, state[action.objectId], action.propObject),
-            })
+            return { ...state, [action.objectId]: { ...state[action.objectId], ...action.propObject } }
         } else if (action.type === ADD_ID_TO_STORE_OBJECT_LIST_PROP) {
             return Object.assign({}, state, {
                 [action.objectId]: Object.assign({}, state[action.objectId], {
diff --git a/opendc-web/opendc-web-ui/src/redux/reducers/projects.js b/opendc-web/opendc-web-ui/src/redux/reducers/projects.js
deleted file mode 100644
index a920e47f..00000000
--- a/opendc-web/opendc-web-ui/src/redux/reducers/projects.js
+++ /dev/null
@@ -1,14 +0,0 @@
-import { ADD_PROJECT_SUCCEEDED, DELETE_PROJECT_SUCCEEDED, FETCH_PROJECTS_SUCCEEDED } from '../actions/projects'
-
-export function projects(state = [], action) {
-    switch (action.type) {
-        case FETCH_PROJECTS_SUCCEEDED:
-            return action.projects
-        case ADD_PROJECT_SUCCEEDED:
-            return [...state, action.project]
-        case DELETE_PROJECT_SUCCEEDED:
-            return state.filter((project) => project._id !== action.id)
-        default:
-            return state
-    }
-}