Refactor: Dependencies - Replaced class with func. comp (#169)

package.json

@@ -27,7 +27,7 @@
     "@types/node": "12.7.8",
     "@types/react": "16.9.2",
     "@types/react-dom": "16.9.0",
-    "@types/react-router-dom": "4.3.5",
+    "@types/react-router-dom": "5.1.0",
     "@types/validator": "10.11.3",
     "@typescript-eslint/parser": "2.3.2",
     "@verdaccio/babel-preset": "2.0.0",
@@ -85,10 +85,9 @@
     "react": "16.10.0",
     "react-autosuggest": "9.4.3",
     "react-dom": "16.10.0",
+    "react-router-dom": "5.1.2",
     "react-emotion": "9.2.12",
     "react-hot-loader": "4.12.11",
-    "react-router": "5.0.1",
-    "react-router-dom": "5.0.1",
     "resolve-url-loader": "3.1.0",
     "rimraf": "3.0.0",
     "source-map-loader": "0.2.4",

src/components/Dependencies/Dependencies.test.tsx

@@ -0,0 +1,92 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+import { HashRouter } from 'react-router-dom';
+
+import { DetailContextProvider } from '../../pages/Version';
+
+import Dependencies from './Dependencies';
+
+describe('<Dependencies /> component', () => {
+  test('Renders a message when there are no dependencies', () => {
+    // Given
+    const packageMeta = {
+      latest: {
+        name: 'verdaccio',
+        version: '4.0.0',
+        author: {
+          name: 'verdaccio user',
+          email: 'verdaccio.user@verdaccio.org',
+          url: '',
+          avatar: 'https://www.gravatar.com/avatar/000000',
+        },
+        dist: { fileCount: 0, unpackedSize: 0 },
+        dependencies: {},
+        devDependencies: {},
+        peerDependencies: {},
+      },
+      _uplinks: {},
+    };
+
+    // When
+    const { getByText } = render(
+      <DetailContextProvider value={{ packageMeta }}>
+        <Dependencies />
+      </DetailContextProvider>
+    );
+
+    // Then
+    expect(getByText('verdaccio has no dependencies.')).toBeDefined();
+  });
+
+  test('Renders a link to each dependency', () => {
+    // Given
+    const packageMeta = {
+      latest: {
+        name: 'verdaccio',
+        version: '4.0.0',
+        author: {
+          name: 'verdaccio user',
+          email: 'verdaccio.user@verdaccio.org',
+          url: '',
+          avatar: 'https://www.gravatar.com/avatar/000000',
+        },
+        dist: { fileCount: 0, unpackedSize: 0 },
+        dependencies: {
+          react: '16.9.0',
+          'react-dom': '16.9.0',
+        },
+        devDependencies: {
+          'babel-core': '7.0.0-beta6',
+        },
+        peerDependencies: {
+          'styled-components': '5.0.0',
+        },
+      },
+      _uplinks: {},
+    };
+
+    // When
+    const { getByText } = render(
+      <HashRouter>
+        <DetailContextProvider value={{ packageMeta }}>
+          <Dependencies />
+        </DetailContextProvider>
+      </HashRouter>
+    );
+
+    // Then
+    // FIXME: currently MaterialUI chips do not support the children
+    // prop, therefore it is impossible to use proper links for
+    // dependencies. Those are for now clickable spans
+
+    expect(getByText('dependencies (2)')).toBeDefined();
+    expect(getByText('react@16.9.0').tagName).toBe('SPAN');
+    expect(getByText('react-dom@16.9.0').tagName).toBe('SPAN');
+
+    expect(getByText('devDependencies (1)')).toBeDefined();
+    expect(getByText('babel-core@7.0.0-beta6').tagName).toBe('SPAN');
+
+    expect(getByText('peerDependencies (1)')).toBeDefined();
+    expect(getByText('styled-components@5.0.0').tagName).toBe('SPAN');
+  });
+});

src/components/Dependencies/Dependencies.tsx

@@ -1,117 +1,78 @@
-import React, { Component, Fragment, ReactElement } from 'react';
+import React, { useContext } from 'react';
-import { withRouter, RouteComponentProps } from 'react-router-dom';
+import { useHistory } from 'react-router-dom';
 import CardContent from '@material-ui/core/CardContent';
 
-import { DetailContextConsumer, VersionPageConsumerProps } from '../../pages/Version';
+import { PackageDependencies } from '../../../types/packageMeta';
+import { DetailContext } from '../../pages/Version';
 import NoItems from '../NoItems';
 
 import { CardWrap, Heading, Tags, Tag } from './styles';
 
-type DepDetailProps = {
+interface DependencyBlockProps {
-  name: string;
+  title: string;
-  version: string;
+  dependencies: PackageDependencies;
-  onLoading?: () => void;
-} & RouteComponentProps;
-
-interface DepDetailState {
-  name: string;
-  version: string;
 }
 
-class DepDetail extends Component<DepDetailProps, DepDetailState> {
+const DependencyBlock: React.FC<DependencyBlockProps> = ({ title, dependencies }) => {
-  constructor(props: DepDetailProps) {
+  const { enableLoading } = useContext(DetailContext);
-    super(props);
+  const history = useHistory();
-    const { name, version } = this.props;
 
-    this.state = {
+  const deps = Object.entries(dependencies);
-      name,
-      version,
-    };
-  }
 
-  public render(): ReactElement<HTMLElement> {
+  function handleClick(name: string): void {
-    const { name, version } = this.state;
+    enableLoading && enableLoading();
-    const tagText = `${name}@${version}`;
-    return <Tag className={'dep-tag'} clickable={true} label={tagText} onClick={this.handleOnClick} />;
-  }
 
-  private handleOnClick = () => {
-    const { name } = this.state;
-    const { onLoading, history } = this.props;
-
-    onLoading && onLoading();
     history.push(`/-/web/detail/${name}`);
-  };
   }
 
-const WrapperDependencyDetail = withRouter(DepDetail);
-
-class DependencyBlock extends Component<{ title: string; dependencies: [] }> {
-  public render(): ReactElement<HTMLElement> {
-    const { dependencies, title } = this.props;
-    const deps = Object.entries(dependencies) as [];
-
-    return (
-      <DetailContextConsumer>
-        {({ enableLoading }) => {
   return (
     <CardWrap>
       <CardContent>
         <Heading variant="subtitle1">{`${title} (${deps.length})`}</Heading>
-                <Tags>{this.renderTags(deps, enableLoading)}</Tags>
+        <Tags>
+          {deps.map(([name, version]) => (
+            // eslint-disable-next-line
+            <Tag className={'dep-tag'} clickable={true} key={name} label={`${name}@${version}`} onClick={() => handleClick(name)} />
+          ))}
+        </Tags>
       </CardContent>
     </CardWrap>
   );
-        }}
+};
-      </DetailContextConsumer>
+
-    );
+function hasKeys(object?: { [key: string]: any }): boolean {
+  return !!object && Object.keys(object).length > 0;
 }
 
-  private renderTags = (deps: [], enableLoading?: () => void) =>
+const Dependencies: React.FC<{}> = () => {
-    deps.map(dep => {
+  const { packageMeta } = useContext(DetailContext);
-      const [name, version] = dep as [string, string];
 
-      return <WrapperDependencyDetail key={name} name={name} onLoading={enableLoading} version={version} />;
+  if (!packageMeta) {
-    });
+    throw new Error('packageMeta is required at DetailContext');
   }
 
-class Dependencies extends Component {
-  public render(): ReactElement<HTMLElement> {
-    return (
-      <DetailContextConsumer>
-        {packageMeta => {
-          return this.renderDependencies(packageMeta as VersionPageConsumerProps);
-        }}
-      </DetailContextConsumer>
-    );
-  }
-
-  private checkDependencyLength<T>(dependency: Record<string, T> = {}): boolean {
-    return Object.keys(dependency).length > 0;
-  }
-
-  private renderDependencies({ packageMeta }): ReactElement<HTMLElement> {
   const { latest } = packageMeta;
+  // FIXME: add dependencies to package meta type
+  // @ts-ignore
   const { dependencies, devDependencies, peerDependencies, name } = latest;
-
   const dependencyMap = { dependencies, devDependencies, peerDependencies };
+  const hasDependencies = hasKeys(dependencies) || hasKeys(devDependencies) || hasKeys(peerDependencies);
 
-    const dependencyList = Object.keys(dependencyMap).reduce(
+  if (hasDependencies) {
-      (result, value, key) => {
+    return (
-        const selectedDepndency = dependencyMap[value];
+      <>
-        if (selectedDepndency && this.checkDependencyLength(selectedDepndency)) {
+        {Object.entries(dependencyMap).map(([dependencyType, dependencies]) => {
-          result.push(<DependencyBlock dependencies={selectedDepndency} key={key} title={value} />);
+          if (!dependencies || Object.keys(dependencies).length === 0) {
+            return null;
           }
-        return result;
+
-      },
+          return <DependencyBlock dependencies={dependencies} key={dependencyType} title={dependencyType} />;
-      [] as JSX.Element[]
+        })}
+      </>
     );
+  }
 
-    if (dependencyList.length) {
-      return <Fragment>{dependencyList}</Fragment>;
-    }
   return <NoItems className="no-dependencies" text={`${name} has no dependencies.`} />;
-  }
+};
-}
 
 export default Dependencies;

types/packageMeta.ts

@@ -48,3 +48,7 @@ export interface Author {
   url?: string;
   avatar?: string;
 }
+
+export interface PackageDependencies {
+  [key: string]: string;
+}

yarn.lock

@@ -1676,10 +1676,10 @@
   dependencies:
     "@types/react" "*"
 
-"@types/react-router-dom@4.3.5":
+"@types/react-router-dom@5.1.0":
-  version "4.3.5"
+  version "5.1.0"
-  resolved "https://registry.verdaccio.org/@types%2freact-router-dom/-/react-router-dom-4.3.5.tgz#72f229967690c890d00f96e6b85e9ee5780db31f"
+  resolved "https://registry.yarnpkg.com/@types/react-router-dom/-/react-router-dom-5.1.0.tgz#8baa84a7fa8c8e7797fb3650ca51f93038cb4caf"
-  integrity sha512-eFajSUASYbPHg2BDM1G8Btx+YqGgvROPIg6sBhl3O4kbDdYXdFdfrgQFf/pcBuQVObjfT9AL/dd15jilR5DIEA==
+  integrity sha512-YCh8r71pL5p8qDwQf59IU13hFy/41fDQG/GeOI3y+xmD4o0w3vEPxE8uBe+dvOgMoDl0W1WUZsWH0pxc1mcZyQ==
   dependencies:
     "@types/history" "*"
     "@types/react" "*"
@@ -10946,23 +10946,23 @@ react-lifecycles-compat@^3.0.4:
   resolved "https://registry.verdaccio.org/react-lifecycles-compat/-/react-lifecycles-compat-3.0.4.tgz#4f1a273afdfc8f3488a8c516bfda78f872352362"
   integrity sha512-fBASbA6LnOU9dOU2eW7aQ8xmYBSXUIWr+UmF9b1efZBazGNO+rcXT/icdKnYm2pTwcRylVUYwW7H1PHfLekVzA==
 
-react-router-dom@5.0.1:
+react-router-dom@5.1.2:
-  version "5.0.1"
+  version "5.1.2"
-  resolved "https://registry.verdaccio.org/react-router-dom/-/react-router-dom-5.0.1.tgz#ee66f4a5d18b6089c361958e443489d6bab714be"
+  resolved "https://registry.yarnpkg.com/react-router-dom/-/react-router-dom-5.1.2.tgz#06701b834352f44d37fbb6311f870f84c76b9c18"
-  integrity sha512-zaVHSy7NN0G91/Bz9GD4owex5+eop+KvgbxXsP/O+iW1/Ln+BrJ8QiIR5a6xNPtrdTvLkxqlDClx13QO1uB8CA==
+  integrity sha512-7BPHAaIwWpZS074UKaw1FjVdZBSVWEk8IuDXdB+OkLb8vd/WRQIpA4ag9WQk61aEfQs47wHyjWUoUGGZxpQXew==
   dependencies:
     "@babel/runtime" "^7.1.2"
     history "^4.9.0"
     loose-envify "^1.3.1"
     prop-types "^15.6.2"
-    react-router "5.0.1"
+    react-router "5.1.2"
     tiny-invariant "^1.0.2"
     tiny-warning "^1.0.0"
 
-react-router@5.0.1:
+react-router@5.1.2:
-  version "5.0.1"
+  version "5.1.2"
-  resolved "https://registry.verdaccio.org/react-router/-/react-router-5.0.1.tgz#04ee77df1d1ab6cb8939f9f01ad5702dbadb8b0f"
+  resolved "https://registry.yarnpkg.com/react-router/-/react-router-5.1.2.tgz#6ea51d789cb36a6be1ba5f7c0d48dd9e817d3418"
-  integrity sha512-EM7suCPNKb1NxcTZ2LEOWFtQBQRQXecLxVpdsP4DW4PbbqYWeRiLyV/Tt1SdCrvT2jcyXAXmVTmzvSzrPR63Bg==
+  integrity sha512-yjEuMFy1ONK246B+rsa0cUam5OeAQ8pyclRDgpxuSCrAlJ1qN9uZ5IgyKC7gQg0w8OM50NXHEegPh/ks9YuR2A==
   dependencies:
     "@babel/runtime" "^7.1.2"
     history "^4.9.0"