Refactor to use local storage

.eslintrc.json

@@ -0,0 +1,10 @@
+{
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ],
+    "rules": {
+        "testing-library/no-container": "off",
+        "testing-library/no-node-access": "off"
+    }
+  }

.github/workflows/ci.yml

@@ -50,3 +50,17 @@ jobs:
               run: npm i
             - name: Run eslint
               run: npm run lint
+
+    test:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v3
+            - name: Install Node.js
+              uses: actions/setup-node@v4
+              with:
+                  node-version: 21
+                  cache: 'npm'
+            - name: Install modules
+              run: npm i
+            - name: Run tests
+              run: npm run test:ci

package.json

@@ -25,16 +25,12 @@
     "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test",
+    "test:ci": "react-scripts test --watchAll=false",
     "eject": "react-scripts eject",
     "lint": "eslint src/**/*.ts*",
     "fix": "npm run lint -- --fix",
-    "check-types": "tsc --noEmit"
-  },
-  "eslintConfig": {
-    "extends": [
-      "react-app",
-      "react-app/jest"
-    ]
+    "check-types": "tsc --noEmit",
+    "ci": "npm run lint && npm run check-types && npm run test:ci && npm run build"
   },
   "browserslist": {
     "production": [

src/App.test.tsx

@@ -1,16 +1,201 @@
-import { render, screen } from '@testing-library/react';
-import * as testData from './sampleData'
+import {render, screen, waitFor} from '@testing-library/react';
 import App from './App';
+import {IClient} from './client/IClient';
+import {ProjectData, CommentData, SectionData, EntityType, FileData} from './types';
+import {LocalStorageStore, StoreData} from './store/LocalStorageStore';
+import {MockLocalStorageDependency} from './store/MockLocalStorageDependency';
+import {LocalStorageClient} from './client/LocalStorageClient';
 
-test('renders learn react link', () => {
-  render(
-    <App 
-    sectionData={testData.sectionData}
-    chordProgression={testData.currentChordProgression}
-    files={testData.files}
-    comments={testData.comments}
-    />
-  );
-  const linkElement = screen.getByText(/learn react/i);
-  expect(linkElement).toBeInTheDocument();
+// import * as testData from './sampleData'
+
+window.alert = () => {};
+
+const makeTestStore = (): StoreData => {
+    const initialProjects: ProjectData[] = [
+        {
+            id: 'project-1',
+        },
+        {
+            id: 'project-2',
+        },
+    ];
+
+    const initialSections: SectionData[] = [
+        {
+            id: 'section-1',
+            projectId: 'project-1',
+            chordProgression: ['C', 'Dm', 'F', 'G'],
+            description: 'This is the intro',
+            title: 'Intro',
+            numRevisions: 3,
+        }
+    ];
+
+    const initialFiles: FileData[] = [
+        {
+            id: 'file-1',
+            projectId: 'project-1',
+            entityId: 'section-1',
+            entityType: EntityType.SECTION,
+            title: 'Bass.mp3',
+        },
+        {
+            id: 'file-2',
+            projectId: 'project-1',
+            entityId: 'section-1',
+            entityType: EntityType.SECTION,
+            title: 'Chunky Monkey.mp3',
+        },
+    ];
+
+    const initialComments: CommentData[] = [
+        {
+            id: 'comment-1',
+            projectId: 'project-1',
+            message: 'Hey what\'s up',
+            entityType: EntityType.SECTION,
+            entityId: 'section-1',
+            username: 'username-1',
+        },
+        {
+            id: 'comment-2',
+            projectId: 'project-1',
+            message: 'Yeah',
+            entityType: EntityType.FILE,
+            entityId: 'file-1',
+            username: 'username-1',
+        },
+        {
+            id: 'comment-3',
+            projectId: 'project-1',
+            message: 'Yeah 3',
+            entityType: EntityType.FILE,
+            entityId: 'file-1',
+            username: 'username-1',
+        },
+    ];
+
+    return {
+        projects: initialProjects,
+        sections: initialSections,
+        files: initialFiles,
+        comments: initialComments,
+    };
+};
+
+describe('App', () => {
+    let client: IClient;
+
+    beforeEach(() => {
+        const initialStore = makeTestStore();
+
+        const localStorageDependency = new MockLocalStorageDependency(initialStore);
+        const store = new LocalStorageStore(localStorageDependency);
+        client = new LocalStorageClient(store);
+    });
+
+    describe('initializing', () => {
+        it('should show "Loading"', async () => {
+            // this method is made blocking for this specific test
+            client.fetchFullDataForProject = (() => new Promise(r => setTimeout(r)));
+
+            render(
+                <App
+                    projectId={'project-1'}
+                    sectionId={'section-1'}
+                    client={client}
+                />
+            );
+
+            expect(screen.getByText(/Loading/)).toBeDefined();
+        });
+
+        it('should show client error', async () => {
+            client.fetchFullDataForProject = jest.fn().mockResolvedValue(new Error('Some error'));
+
+            render(
+                <App
+                    projectId={'project-1'}
+                    sectionId={'section-1'}
+                    client={client}
+                />
+            );
+
+            await waitFor(() => {
+                expect(screen.queryByText(/Loading/)).toBeNull();
+            });
+
+            expect(screen.getByText(/Some error/)).toBeDefined();
+        });
+    });
+
+    describe('initialized', () => {
+        it('should show the section title and description', async () => {
+            render(
+                <App
+                    projectId={'project-1'}
+                    sectionId={'section-1'}
+                    client={client}
+                />
+            );
+
+            await waitFor(() => {
+                expect(screen.queryByText(/Loading/)).toBeNull();
+            });
+
+            expect(screen.getByText(/Intro/)).toBeDefined();
+            expect(screen.getByText(/This is the intro/)).toBeDefined();
+        });
+
+        it('should show the chord progression', async () => {
+            const {container} = render(
+                <App
+                    projectId={'project-1'}
+                    sectionId={'section-1'}
+                    client={client}
+                />
+            );
+
+            await waitFor(() => {
+                expect(screen.queryByText(/Loading/)).toBeNull();
+            });
+
+            expect(container.querySelector('.chords')?.textContent).toEqual('CDmFG');
+        });
+
+        it('should show files attached to the section', async () => {
+            const {container} = render(
+                <App
+                    projectId={'project-1'}
+                    sectionId={'section-1'}
+                    client={client}
+                />
+            );
+
+            await waitFor(() => {
+                expect(screen.queryByText(/Loading/)).toBeNull();
+            });
+
+            expect(container.querySelector('.files #file-1')?.textContent).toContain('Bass.mp3');
+            expect(container.querySelector('.files #file-1')?.textContent).toContain('2 Comments');
+        });
+
+        it('should show the comments on the section', async () => {
+            const {container} = render(
+                <App
+                    projectId={'project-1'}
+                    sectionId={'section-1'}
+                    client={client}
+                />
+            );
+
+            await waitFor(() => {
+                expect(screen.queryByText(/Loading/)).toBeNull();
+            });
+
+            expect(container.querySelector('.comments')?.textContent).toContain('1 Comment');
+            expect(container.querySelector('.comments #comment-1')?.textContent).toContain('username-1');
+            expect(container.querySelector('.comments #comment-1')?.textContent).toContain('Hey what\'s up');
+        });
+    });
 });

src/App.tsx

@@ -1,38 +1,69 @@
+import {useState} from 'react';
+
 import './App.css';
 import './css_reset.css'
+import './index.css'
 import './section_view.css';
 import * as types from './types';
-import { Files } from './Files';
-import { ChordProgression } from './ChordProgression';
-import { Comments } from './Comments';
-import { CreateComment } from './CreateComment';
-import { SectionTitle } from './SectionTitle';
-import { useState } from 'react';
+import {GlobalStoreProvider} from './hooks/useGlobalStore';
+import SectionPage from './SectionPage';
+import {IClient} from './client/IClient';
+import {ClientProvider} from './hooks/useClient';
+import {useMount} from './hooks/useMount';
 
+type AppProps = {
+    projectId: string;
+    sectionId: string;
 
+    client: IClient;
+}
 
+const App: React.FC<AppProps> = ({projectId, sectionId, client}) => {
+    const [initialProjectData, setInitialProjectData] = useState<types.FullProjectData | null>(null);
+    const [error, setError] = useState('');
 
-type AppProps = {
-  sectionData: types.SectionData,
-  chordProgression: types.ChordProgression,
-  files: types.File[],
-  comments: types.Comment[]
-}
+    useMount(async () => {
+        const projectDataOrError = await client.fetchFullDataForProject(projectId);
+
+        if (projectDataOrError instanceof Error) {
+            alert(projectDataOrError.message);
+            setError(projectDataOrError.message);
+            return;
+        }
+
+        setInitialProjectData(projectDataOrError);
+    });
+
+    if (error) {
+        return (
+            <p>
+                {error}
+            </p>
+        );
+    }
 
-const App:React.FC<AppProps> = ({sectionData, chordProgression, comments, files}) => {
+    if (!initialProjectData) {
+        return (
+            <p>
+                Loading
+            </p>
+        );
+    }
 
-  const [commentsAsState, setCommentsAsState] = useState<types.Comment[]>(comments)
-
+    const pageContent = (
+        <SectionPage
+            projectId={projectId}
+            sectionId={sectionId}
+        />
+    );
 
-  return (
-    <div className="root">
-      <SectionTitle sectionData={sectionData} />
-      <ChordProgression chordProgression={chordProgression}  />
-      <Files files={files}/>
-      <Comments comments={commentsAsState} setComments={setCommentsAsState}/>
-      <CreateComment comments={commentsAsState} setComments={setCommentsAsState}/>
-    </div>
-  );
+    return (
+        <ClientProvider client={client}>
+            <GlobalStoreProvider initialProjectData={initialProjectData}>
+                {pageContent}
+            </GlobalStoreProvider>
+        </ClientProvider>
+    );
 }
 
 export default App;

src/ChordProgression.tsx

@@ -9,7 +9,7 @@ export const ChordProgression: React.FC<ChordProgressionProps> = ({ chordProgres
   return (
     <div className="chords">
       <ol>
-        {chordProgression.map((chord, index) => <li>{chord}</li>)}
+        {chordProgression.map((chord, index) => <li key={index}>{chord}</li>)}
       </ol>
     </div>
   );