From bf1c3482abb2ab513e7112f9eb8e2ca996f1973a Mon Sep 17 00:00:00 2001
From: 0xPatrick <patrick@0xpatrick.dev>
Date: Wed, 17 Jul 2024 21:32:48 -0400
Subject: [PATCH] chore(docs): rename functions to funcs in typedoc output

- avoids limitation in cloudflare pages, where we cannot publish html files to a top-level functions directory
- closes: #9729
---
 package.json                              |   4 +-
 scripts/update-typedoc-functions-path.cjs | 137 ++++++++++++++++++++++
 2 files changed, 140 insertions(+), 1 deletion(-)
 create mode 100644 scripts/update-typedoc-functions-path.cjs

diff --git a/package.json b/package.json
index 271c1eac517..35adf959e68 100644
--- a/package.json
+++ b/package.json
@@ -48,8 +48,10 @@
   "scripts": {
     "clean": "yarn lerna run --no-bail clean",
     "check-dependencies": "node ./scripts/check-mismatched-dependencies.cjs",
-    "docs": "typedoc --tsconfig tsconfig.build.json",
+    "docs": "run-s docs:build docs:update-functions-path",
+    "docs:build": "typedoc --tsconfig tsconfig.build.json",
     "docs:markdown-for-agoric-documentation-repo": "typedoc --plugin typedoc-plugin-markdown --tsconfig tsconfig.build.json",
+    "docs:update-functions-path": "node ./scripts/update-typedoc-functions-path.cjs",
     "lerna": "lerna",
     "link-cli": "yarn run create-agoric-cli",
     "create-agoric-cli": "node ./scripts/create-agoric-cli.cjs",
diff --git a/scripts/update-typedoc-functions-path.cjs b/scripts/update-typedoc-functions-path.cjs
new file mode 100644
index 00000000000..87c2352add9
--- /dev/null
+++ b/scripts/update-typedoc-functions-path.cjs
@@ -0,0 +1,137 @@
+#!/usr/bin/env node
+
+const fsp = require('fs').promises;
+const path = require('path');
+const zlib = require('zlib');
+
+const navigationFilePath = path.join(
+  __dirname,
+  '..',
+  'api-docs',
+  'assets',
+  'navigation.js',
+);
+const apiDocsDir = path.join(__dirname, '..', 'api-docs');
+
+// Decodes and decompresses the TypeDoc navigation data
+function decodeTypeDocNavigation(encodedData) {
+  return new Promise((resolve, reject) => {
+    const base64Data = encodedData.replace(
+      /^data:application\/octet-stream;base64,/,
+      '',
+    );
+    const buffer = Buffer.from(base64Data, 'base64');
+
+    zlib.gunzip(buffer, (err, decompressed) => {
+      if (err) {
+        reject(new Error('Failed to decompress data: ' + err.message));
+        return;
+      }
+
+      try {
+        const jsonData = JSON.parse(decompressed.toString('utf-8'));
+        resolve(jsonData);
+      } catch (parseError) {
+        reject(new Error('Failed to parse JSON: ' + parseError.message));
+      }
+    });
+  });
+}
+
+// Compresses and encodes the TypeDoc navigation data
+function encodeTypeDocNavigation(jsonData) {
+  return new Promise((resolve, reject) => {
+    const jsonString = JSON.stringify(jsonData);
+
+    zlib.gzip(jsonString, (err, compressed) => {
+      if (err) {
+        reject(new Error('Failed to compress data: ' + err.message));
+        return;
+      }
+
+      const base64Data = compressed.toString('base64');
+      resolve('data:application/octet-stream;base64,' + base64Data);
+    });
+  });
+}
+
+// Recursively updates URLs in the navigation data
+function updateUrls(data, searchString, replaceString) {
+  if (typeof data === 'object' && data !== null) {
+    for (let key in data) {
+      if (
+        typeof data[key] === 'string' &&
+        data[key].includes(`${searchString}/`)
+      ) {
+        data[key] = data[key].replace(
+          new RegExp(`${searchString}/`, 'g'),
+          `${replaceString}/`,
+        );
+      } else if (typeof data[key] === 'object') {
+        updateUrls(data[key], searchString, replaceString);
+      }
+    }
+  }
+  return data;
+}
+
+// Updates href links in HTML files
+async function updateHtmlFiles(dir, searchString, replaceString) {
+  const files = await fsp.readdir(dir);
+  for (const file of files) {
+    const filePath = path.join(dir, file);
+    const stat = await fsp.stat(filePath);
+    if (stat.isDirectory()) {
+      await updateHtmlFiles(filePath, searchString, replaceString);
+    } else if (path.extname(file) === '.html') {
+      let content = await fsp.readFile(filePath, 'utf8');
+      if (content.includes(`/${searchString}/`)) {
+        content = content.replace(
+          new RegExp(`/${searchString}/`, 'g'),
+          `/${replaceString}/`,
+        );
+        await fsp.writeFile(filePath, content);
+        console.log(`Updated: ${filePath}`);
+      }
+    }
+  }
+}
+
+// Updates the navigation file and HTML files in the api-docs directory
+// replacing /function file names and url references with /funcs
+async function updateNavigationAndHtmlFiles(
+  searchString = 'functions',
+  replaceString = 'funcs',
+) {
+  try {
+    // Rename the directory
+    const oldDirPath = path.join(apiDocsDir, searchString);
+    const newDirPath = path.join(apiDocsDir, replaceString);
+    await fsp.rename(oldDirPath, newDirPath);
+    console.log(`Directory renamed from ${searchString} to ${replaceString}`);
+
+    // Update navigation file
+    const fileContent = await fsp.readFile(navigationFilePath, 'utf8');
+    const match = fileContent.match(/window\.navigationData = "(.*?)"/);
+    if (!match) {
+      throw new Error('Navigation data not found in file');
+    }
+    const encodedData = match[1];
+
+    const decodedData = await decodeTypeDocNavigation(encodedData);
+    const updatedData = updateUrls(decodedData, searchString, replaceString);
+    const newEncodedData = await encodeTypeDocNavigation(updatedData);
+    const newFileContent = `window.navigationData = "${newEncodedData}"`;
+    await fsp.writeFile(navigationFilePath, newFileContent);
+
+    console.log('Navigation file updated successfully');
+
+    // Update HTML files
+    await updateHtmlFiles(apiDocsDir, searchString, replaceString);
+    console.log('HTML files updated successfully');
+  } catch (error) {
+    console.error('Error updating files:', error);
+  }
+}
+
+updateNavigationAndHtmlFiles();