Add links to the daybooks home page.

This works by querying for the home page of the daybooks database (which
happens to be called "day books" in my Notion setup).

src/clients/notion.ts

@@ -4,13 +4,14 @@ import { Client } from "@notionhq/client";
 class NotionClient {
   notion: Client;
 
-  constructor (token: string) {
+  constructor(token: string) {
     // Initializing a client
     this.notion = new Client({ auth: token });
   }
 
   async searchByQuery(query: string): Promise<any> {
     const result = await this.notion.search({ query });
+    // TODO clean up this fixture setup code
     // fs.writeFileSync(`./build/fixture-notion-query-${query}.json`, JSON.stringify(result, null, 2));
     return result;
   }

src/services.ts

@@ -76,20 +76,32 @@ class GenerateSiteService {
 `;
   }
 
-  async generateNotFoundPage(buildDir: string, now: Date) {
-    const contents = this.fromBaseTemplate(
-      now,
-      `
+  async generateNotFoundPage(
+    buildDir: string,
+    now: Date,
+    daybookRootUrl: string | null
+  ) {
+    let inner = `
       <h1>Daybook Redirects - Not found</h1>
 
       <p>
         <a href="https://app.netlify.com/sites/daybook-redirects/deploys?filter=main">
           Whoops? Something  wrong with the build?
         </a>
       </p>
-      );
-    `
-    );
+    `;
+    if (daybookRootUrl) {
+      inner =
+        inner +
+        `
+      <p>
+        <a href="${daybookRootUrl}">
+          Daybooks home page
+        </a>
+      </p>
+      `;
+    }
+    const contents = this.fromBaseTemplate(now, inner);
 
     console.log("Generating not-found page.");
     fs.writeFileSync(`${buildDir}/not-found.html`, contents);
@@ -98,13 +110,25 @@ class GenerateSiteService {
   async generateIndexPage(
     buildDir: string,
     now: Date,
+    daybookRootUrl: string,
     links: Array<{ name: string; url: string }>
   ) {
     const linksUl = links.reduce((acc, curr) => {
       const link = `<li><a href="${curr.url}">${curr.name}</a></li>\n`;
       return acc + link;
     }, "");
 
+    let daybookRootLink = "";
+    if (daybookRootUrl) {
+      daybookRootLink = `
+      <p>
+        <a href="${daybookRootUrl}">
+          Daybooks home page
+        </a>
+      </p>
+      `;
+    }
+
     const contents = this.fromBaseTemplate(
       now,
       `
@@ -113,6 +137,8 @@ class GenerateSiteService {
       <ul>
         ${linksUl}
       </ul>
+
+      ${daybookRootLink}
     `
     );
     console.log("Generating index page.");
@@ -288,9 +314,20 @@ class GenerateSiteService {
     const now = this.today;
     console.log(`Running at: ${now}`);
 
+    // TODO drop this (consider moving the .users.me() example)
     // const meResponse = await this.notion.users.me({});
     // console.log(`User id: ${meResponse.id}`);
 
+    // Find the Notion database where all daybooks are kept
+    let daybookRootUrl = null;
+    const daybookRootPageQuery = await this.notion.searchByQuery("day books");
+    if (
+      daybookRootPageQuery.results &&
+      daybookRootPageQuery.results.length === 1
+    ) {
+      daybookRootUrl = daybookRootPageQuery.results[0].url;
+    }
+
     const buildDir = "./build";
     console.log(`Setting up build directory: ${buildDir}`);
     if (fs.existsSync(buildDir)) {
@@ -315,8 +352,8 @@ class GenerateSiteService {
     ) as Array<Page>;
     console.log(generationErrors);
 
-    await this.generateNotFoundPage(buildDir, now);
-    await this.generateIndexPage(buildDir, now, pages);
+    await this.generateNotFoundPage(buildDir, now, daybookRootUrl);
+    await this.generateIndexPage(buildDir, now, daybookRootUrl, pages);
 
     console.log("Copying static files into build directory");
     fs.copySync("./static", buildDir);