feat: article details page.

.env

@@ -1,2 +1,3 @@
 NEXT_PUBLIC_FIRST_NAME=Ivan
 NEXT_PUBLIC_LAST_NAME=Li
+BACKEND_URI=http://127.0.0.1:7132/graphql

commons/graphql/client.ts

@@ -1,6 +1,98 @@
-import { ApolloClient, InMemoryCache } from "@apollo/client";
+import { useMemo } from "react";
+import { ApolloClient, from, HttpLink, InMemoryCache } from "@apollo/client";
+import { concatPagination } from "@apollo/client/utilities";
+import { equals, mergeDeepWith } from "ramda";
+import { onError } from "@apollo/client/link/error";
 
 export const client = new ApolloClient({
   uri: "/api/graphql",
   cache: new InMemoryCache(),
 });
+
+export const APOLLO_STATE_PROP_NAME = "__APOLLO_STATE__";
+
+let apolloClient: ApolloClient<InMemoryCache>;
+
+function createApolloClient() {
+  const httpLink = new HttpLink({
+      uri:
+        typeof window === "undefined"
+          ? process.env.BACKEND_URI
+          : "/api/graphql", // Server URL (must be absolute)
+      credentials: "same-origin", // Additional fetch() options like `credentials` or `headers`
+    });
+
+  const errorLink = onError(({ graphQLErrors, networkError }) => {
+    if (graphQLErrors)
+      graphQLErrors.forEach(({ message, locations, path }) =>
+        console.log(
+          `[GraphQL error]: Message: ${message}, Location: ${locations}, Path: ${path}`
+        )
+      );
+
+    if (networkError) console.log(`[Network error]: ${networkError}`);
+  });
+  return new ApolloClient({
+    ssrMode: typeof window === "undefined",
+    link: from([errorLink, httpLink]),
+    cache: new InMemoryCache({
+      typePolicies: {
+        Query: {
+          fields: {
+            allPosts: concatPagination(),
+          },
+        },
+      },
+    }),
+  });
+}
+
+export function initializeApollo(initialState = null) {
+  const _apolloClient = apolloClient ?? createApolloClient();
+
+  // If your page has Next.js data fetching methods that use Apollo Client, the initial state
+  // gets hydrated here
+  if (initialState) {
+    // Get existing cache, loaded during client side data fetching
+    const existingCache = _apolloClient.extract();
+
+    // Merge the existing cache into data passed from getStaticProps/getServerSideProps
+    const data = mergeDeepWith(
+      (a, b) => {
+        if (Array.isArray(a) && Array.isArray(b)) {
+          return [
+            ...a,
+            ...b.filter((bi) => a.every((ai) => !equals(ai, bi))),
+          ];
+        } else {
+          return b;
+        }
+      },
+      initialState,
+      existingCache
+    );
+
+    // Restore the cache with the merged data
+    _apolloClient.cache.restore(data);
+  }
+  // For SSG and SSR always create a new Apollo Client
+  if (typeof window === "undefined") return _apolloClient;
+  // Create the Apollo Client once in the client
+  if (!apolloClient) apolloClient = _apolloClient;
+
+  return _apolloClient;
+}
+
+export function addApolloState(client, pageProps) {
+  if (pageProps?.props) {
+    pageProps.props[APOLLO_STATE_PROP_NAME] = client.cache.extract();
+  }
+
+  return pageProps;
+}
+
+export function useApollo(pageProps) {
+  const state = pageProps[APOLLO_STATE_PROP_NAME];
+  const store = useMemo(() => initializeApollo(state), [state]);
+  return store;
+}

commons/graphql/queries.ts

@@ -10,3 +10,14 @@ export const ARTICLE_FOR_HOME = gql`
     }
   }
 `;
+
+export const ARTICLE = gql`
+  query Article($id: String!) {
+    article(id: $id) {
+      id
+      title
+      content
+      publishedAt
+    }
+  }
+`;

commons/theme.tsx

@@ -0,0 +1,56 @@
+import React, { createContext, FC, useContext, useEffect, useState } from "react";
+
+const getInitialTheme = (): Mode => {
+  if (typeof window === "undefined") {
+    return 'auto';
+  }
+  const text = window?.localStorage?.getItem('theme');
+  switch (text) {
+    case 'dark': return 'dark';
+    case 'light': return 'light';
+    default: return 'auto';
+  }
+};
+
+type RawMode = "light" | "dark";
+type Mode = RawMode | "auto";
+
+interface Content {
+  mode: Mode;
+  setMode: (mode: Mode) => void;
+}
+
+export const ThemeContext = createContext<Content>({
+  mode: 'error' as Mode,
+  setMode: (_) => {console.log},
+});
+
+export const ThemeProvider: FC = ({ children }) => {
+  const [mode, setMode] = useState<Mode>(() => getInitialTheme());
+
+  useEffect(() => {
+    if (window) {
+      localStorage.setItem("theme", mode);
+      let _mode = mode;
+      if (_mode === "auto") {
+        _mode =
+          window.matchMedia?.("(prefers-color-scheme: dark)").matches ? "dark" : "light";
+      }
+      if (_mode === "dark") {
+        window.document.documentElement.classList.add("dark");
+      } else {
+        window.document.documentElement.classList.remove("dark");
+      }
+    }
+  }, [mode]);
+
+  return (
+    <ThemeContext.Provider value={{ mode, setMode }}>
+      {children}
+    </ThemeContext.Provider>
+  );
+};
+
+export function useTheme () {
+  return useContext(ThemeContext);
+}

components/layouts/global-layout.module.css

@@ -1,13 +1,12 @@
 .wrapper {
-  @apply bg-green-400 text-white;
+  @apply bg-green-400 text-white min-h-screen;
   :global(.dark) & {
     @apply bg-gray-800 text-gray-400;
   }
 }
 .sidebar {
   @apply overflow-hidden flex flex-col fixed top-0;
-  @apply text-center shadow-2xl;
-  height: 100vh;
+  @apply text-center shadow-2xl h-screen;
   padding-top: 10vh;
 }
 

components/switch-theme.tsx

@@ -0,0 +1,10 @@
+import { useTheme } from "../commons/theme";
+
+export const SwitchTheme = () => {
+  const { setMode, mode } = useTheme();
+
+  if (mode === "light") {
+    return <button onClick={() => setMode("dark")}>暗色</button>;
+  }
+  return <button onClick={() => setMode("light")}>亮色</button>;
+};

package-lock.json

@@ -13,6 +13,7 @@
         "next": "10.2.0",
         "postcss-import": "^14.0.1",
         "postcss-nested": "^5.0.5",
+        "ramda": "^0.27.1",
         "react": "17.0.2",
         "react-dom": "17.0.2"
       },
@@ -27,6 +28,7 @@
         "@types/graphql": "^14.5.0",
         "@types/postcss-import": "^12.0.0",
         "@types/postcss-nested": "^4.2.3",
+        "@types/ramda": "^0.27.40",
         "@types/react": "^17.0.4",
         "@types/tailwindcss": "^2.0.2",
         "autoprefixer": "^10.2.5",
@@ -2470,6 +2472,15 @@
       "integrity": "sha512-KfRL3PuHmqQLOG+2tGpRO26Ctg+Cq1E01D2DMriKEATHgWLfeNDmq9e29Q9WIky0dQ3NPkd1mzYH8Lm936Z9qw==",
       "dev": true
     },
+    "node_modules/@types/ramda": {
+      "version": "0.27.40",
+      "resolved": "https://registry.npmjs.org/@types/ramda/-/ramda-0.27.40.tgz",
+      "integrity": "sha512-V99ZfTH2tqVYdLDAlgh2uT+N074HPgqnAsMjALKSBqogYd0HbuuGMqNukJ6fk9Ml/Htaus76fsc4Yh3p7q1VdQ==",
+      "dev": true,
+      "dependencies": {
+        "ts-toolbelt": "^6.15.1"
+      }
+    },
     "node_modules/@types/react": {
       "version": "17.0.4",
       "resolved": "https://registry.npmjs.org/@types/react/-/react-17.0.4.tgz",
@@ -7681,6 +7692,11 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/ramda": {
+      "version": "0.27.1",
+      "resolved": "https://registry.npmjs.org/ramda/-/ramda-0.27.1.tgz",
+      "integrity": "sha512-PgIdVpn5y5Yns8vqb8FzBUEYn98V3xcPgawAkkgj0YJ0qDsnHCiNmZYfOGMgOvoB0eWFLpYbhxUR3mxfDIMvpw=="
+    },
     "node_modules/randombytes": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
@@ -8932,6 +8948,12 @@
         }
       }
     },
+    "node_modules/ts-toolbelt": {
+      "version": "6.15.5",
+      "resolved": "https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.15.5.tgz",
+      "integrity": "sha512-FZIXf1ksVyLcfr7M317jbB67XFJhOO1YqdTcuGaq9q5jLUoTikukZ+98TPjKiP2jC5CgmYdWWYs0s2nLSU0/1A==",
+      "dev": true
+    },
     "node_modules/tslib": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
@@ -11517,6 +11539,15 @@
       "integrity": "sha512-KfRL3PuHmqQLOG+2tGpRO26Ctg+Cq1E01D2DMriKEATHgWLfeNDmq9e29Q9WIky0dQ3NPkd1mzYH8Lm936Z9qw==",
       "dev": true
     },
+    "@types/ramda": {
+      "version": "0.27.40",
+      "resolved": "https://registry.npmjs.org/@types/ramda/-/ramda-0.27.40.tgz",
+      "integrity": "sha512-V99ZfTH2tqVYdLDAlgh2uT+N074HPgqnAsMjALKSBqogYd0HbuuGMqNukJ6fk9Ml/Htaus76fsc4Yh3p7q1VdQ==",
+      "dev": true,
+      "requires": {
+        "ts-toolbelt": "^6.15.1"
+      }
+    },
     "@types/react": {
       "version": "17.0.4",
       "resolved": "https://registry.npmjs.org/@types/react/-/react-17.0.4.tgz",
@@ -15684,6 +15715,11 @@
       "integrity": "sha512-WuyALRjWPDGtt/wzJiadO5AXY+8hZ80hVpe6MyivgraREW751X3SbhRvG3eLKOYN+8VEvqLcf3wdnt44Z4S4SA==",
       "dev": true
     },
+    "ramda": {
+      "version": "0.27.1",
+      "resolved": "https://registry.npmjs.org/ramda/-/ramda-0.27.1.tgz",
+      "integrity": "sha512-PgIdVpn5y5Yns8vqb8FzBUEYn98V3xcPgawAkkgj0YJ0qDsnHCiNmZYfOGMgOvoB0eWFLpYbhxUR3mxfDIMvpw=="
+    },
     "randombytes": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
@@ -16688,6 +16724,12 @@
       "resolved": "https://registry.npmjs.org/ts-pnp/-/ts-pnp-1.2.0.tgz",
       "integrity": "sha512-csd+vJOb/gkzvcCHgTGSChYpy5f1/XKNsmvBGO4JXS+z1v2HobugDz4s1IeFXM3wZB44uczs+eazB5Q/ccdhQw=="
     },
+    "ts-toolbelt": {
+      "version": "6.15.5",
+      "resolved": "https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-6.15.5.tgz",
+      "integrity": "sha512-FZIXf1ksVyLcfr7M317jbB67XFJhOO1YqdTcuGaq9q5jLUoTikukZ+98TPjKiP2jC5CgmYdWWYs0s2nLSU0/1A==",
+      "dev": true
+    },
     "tslib": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",

package.json

@@ -16,6 +16,7 @@
     "next": "10.2.0",
     "postcss-import": "^14.0.1",
     "postcss-nested": "^5.0.5",
+    "ramda": "^0.27.1",
     "react": "17.0.2",
     "react-dom": "17.0.2"
   },
@@ -30,6 +31,7 @@
     "@types/graphql": "^14.5.0",
     "@types/postcss-import": "^12.0.0",
     "@types/postcss-nested": "^4.2.3",
+    "@types/ramda": "^0.27.40",
     "@types/react": "^17.0.4",
     "@types/tailwindcss": "^2.0.2",
     "autoprefixer": "^10.2.5",

pages/_app.module.css

@@ -11,7 +11,7 @@
     @apply bg-gray-700 text-gray-300;
   }
   .wrapper {
-    @apply mx-auto max-w-screen-xl;
+    @apply mx-auto max-w-screen-lg;
   }
 }
 .pageHeader {

pages/_app.tsx

@@ -4,19 +4,22 @@ import React from "react";
 import { GlobalSidebar } from "../components/layouts/global-sidebar";
 import styles from "./_app.module.css";
 import { ApolloProvider } from "@apollo/client";
-import { client } from "../commons/graphql/client";
+import { useApollo } from "../commons/graphql/client";
+import { ThemeProvider, useTheme } from '../commons/theme';
+import { SwitchTheme } from '../components/switch-theme';
 
 function MyApp({ Component, pageProps }) {
+  const apolloClient = useApollo(pageProps);
   return (
-    <ApolloProvider client={client}>
+    <ApolloProvider client={apolloClient}>
+      <ThemeProvider>
         <div className={styles.page}>
           <GlobalSidebar className={styles.sidebar} />
           <div className={styles.primary}>
             <header className={styles.pageHeader}>
               <h1>{"Ivan Li 的个人博客"}</h1>
               <div className={styles.actions}>
-              <button onClick={() => switchTheme("light")}>亮色</button>
-              <button onClick={() => switchTheme("dark")}>暗色</button>
+                <SwitchTheme />
               </div>
             </header>
             <div className={styles.wrapper}>
@@ -24,20 +27,9 @@ function MyApp({ Component, pageProps }) {
             </div>
           </div>
         </div>
+      </ThemeProvider>
     </ApolloProvider>
   );
 }
 
-function switchTheme(mode: "light" | "dark" | "auto") {
-  if (mode === "auto") {
-    mode = "light";
-  }
-
-  if (mode === "dark") {
-    document.documentElement.classList.add("dark");
-  } else {
-    document.documentElement.classList.remove("dark");
-  }
-}
-
 export default MyApp;

pages/articles/[id].tsx

@@ -0,0 +1,44 @@
+import { FC } from "react";
+import styles from "./article.module.css";
+import { GetServerSideProps, GetStaticProps } from "next";
+import { addApolloState, initializeApollo } from "../../commons/graphql/client";
+import { ARTICLE } from "../../commons/graphql/queries";
+import { Article } from "../../commons/graphql/generated";
+import { useQuery } from '@apollo/client';
+import { useRouter } from 'next/router';
+
+interface Props {
+  article: Article;
+}
+const ArticleDetails: FC<Props> = ({ article }) => {
+  // const router = useRouter()
+  // const { data } = useQuery<{ article: Article }>(ARTICLE, {
+  //   variables: router.query,
+  // });
+  return (
+    <main className={styles.articleDetails}>
+      <article className={styles.article}>
+        <header>
+          <h1>{article.title}</h1>
+          <time>{article.publishedAt}</time>
+        </header>
+        <div dangerouslySetInnerHTML={{__html: article.content}}></div>
+      </article>
+    </main>
+  );
+};
+
+export const getServerSideProps: GetServerSideProps = async ({ params }) => {
+  const apolloClient = initializeApollo();
+
+  const { data } = await apolloClient.query<{ article: Article }>({
+    query: ARTICLE,
+    variables: params,
+  });
+
+  return addApolloState(apolloClient, {
+    props: { article: data.article },
+  });
+};
+
+export default ArticleDetails;

pages/articles/article.module.css

@@ -0,0 +1,28 @@
+.articleDetail {
+}
+.article {
+  @apply bg-gray-50 m-2 overflow-hidden rounded-xl;
+
+  :global(.dark) & {
+    @apply bg-gray-800;
+  }
+  & > header {
+      @apply my-8 mx-4;
+    h1 {
+      @apply text-2xl font-medium;
+
+      :global(.dark) & {
+        @apply text-gray-200;
+      }
+    }
+    time {
+      @apply text-sm text-gray-500;
+      :global(.dark) & {
+        @apply text-gray-400;
+      }
+    }
+  }
+  & > div {
+    @apply my-4 leading-8 mx-4 lg:mx-6 xl:mx-8 text-justify;
+  }
+}

pages/index.tsx

@@ -1,23 +1,46 @@
-import { useQuery } from '@apollo/client';
-import { Article } from '../commons/graphql/generated';
-import { ARTICLE_FOR_HOME } from '../commons/graphql/queries';
-import styles from './index.module.css';
+import { useQuery } from "@apollo/client";
+import { GetServerSideProps } from 'next';
+import Link from "next/link";
+import React from "react";
+import { addApolloState, initializeApollo } from '../commons/graphql/client';
+import { Article } from "../commons/graphql/generated";
+import { ARTICLE_FOR_HOME } from "../commons/graphql/queries";
+import styles from "./index.module.css";
 
 export default function Index() {
-  const { data, loading } = useQuery<{articles: Article[]}>(ARTICLE_FOR_HOME);
+  const { data, loading } = useQuery<{ articles: Article[] }>(ARTICLE_FOR_HOME);
 
-  return <main className={styles.index}>
+  return (
+    <main className={styles.index}>
       <ol>
-      {
-        data?.articles?.map(article => <Item article={article} key={article.id} />)
-      }
+        {data?.articles?.map((article) => (
+          <Item article={article} key={article.id} />
+        ))}
       </ol>
-  </main>;
+    </main>
+  );
 }
 
-function Item({article}: {article: Article}) {
-  return <li className={styles.item}>
+function Item({ article }: { article: Article }) {
+  return (
+    <Link href={`/articles/${article.id}`}>
+      <li className={styles.item}>
         <h2 className={styles.title}>{article.title}</h2>
         <p className={styles.description}>{article.content}</p>
       </li>
+    </Link>
+  );
 }
+
+
+export const getServerSideProps: GetServerSideProps = async ({ params }) => {
+  const apolloClient = initializeApollo();
+
+  await apolloClient.query({
+    query: ARTICLE_FOR_HOME,
+  });
+
+  return addApolloState(apolloClient, {
+    props: {},
+  });
+};