feat: migrate JavaScript files to TypeScript and add tsconfig.json

Author: yamadashy

app/scripts/background.js

@@ -0,0 +1,56 @@
+const injectContentToTab = async (tab: chrome.tabs.Tab): Promise<void> => {
+  // Skip if URL is undefined
+  if (!tab.url) {
+    return;
+  }
+
+  // Skip if tab is discarded
+  if (tab.discarded) {
+    return;
+  }
+
+  // Skip if tab ID is undefined
+  if (tab.id === undefined) {
+    return;
+  }
+
+  // Skip if not a GitHub URL
+  if (!tab.url.startsWith('https://github.com/')) {
+    return;
+  }
+
+  try {
+    const manifest = chrome.runtime.getManifest();
+
+    // Inject CSS
+    if (manifest.content_scripts?.[0]?.css) {
+      await chrome.scripting.insertCSS({
+        target: { tabId: tab.id },
+        files: manifest.content_scripts[0].css,
+      });
+    }
+
+    // Inject JavaScript
+    if (manifest.content_scripts?.[0]?.js) {
+      await chrome.scripting.executeScript({
+        target: { tabId: tab.id },
+        files: manifest.content_scripts[0].js,
+      });
+    }
+  } catch (error) {
+    console.error('Error injecting content script:', error);
+  }
+};
+
+// Update extension content for tabs
+chrome.tabs.query({}, async (tabs: chrome.tabs.Tab[]) => {
+  for (const tabKey in tabs) {
+    const tab = tabs[tabKey];
+
+    try {
+      await injectContentToTab(tab);
+    } catch (e) {
+      console.error(e);
+    }
+  }
+});

app/scripts/background.ts

@@ -1,12 +1,12 @@
 // Function to add DeepWiki button
-function addDeepWikiButton() {
+function addDeepWikiButton(): void {
   // If button already exists, do nothing
   if (document.querySelector('.deepwiki-button')) {
     return;
   }
 
   // Get repository main navigation element
-  const navActions = document.querySelector('ul.pagehead-actions');
+  const navActions = document.querySelector<HTMLUListElement>('ul.pagehead-actions');
   if (!navActions) {
     return;
   }
@@ -41,7 +41,7 @@ function addDeepWikiButton() {
     <img src="${chrome.runtime.getURL('images/icon-64.png')}" width="16" height="16" alt="DeepWiki">
   `;
 
-  // Add text with i18n support
+  // Add text
   const text = document.createTextNode('DeepWiki');
   button.appendChild(icon);
   button.appendChild(text);
@@ -61,7 +61,7 @@ document.addEventListener('DOMContentLoaded', () => {
   let lastUrl = location.href;
   let isProcessing = false;
 
-  const observer = new MutationObserver((mutations) => {
+  const observer = new MutationObserver((mutations: MutationRecord[]) => {
     if (isProcessing) return;
     isProcessing = true;
 
@@ -76,7 +76,7 @@ document.addEventListener('DOMContentLoaded', () => {
     }
 
     // Monitor navigation element addition (only if button doesn't exist)
-    const navActions = document.querySelector('ul.pagehead-actions');
+    const navActions = document.querySelector<HTMLUListElement>('ul.pagehead-actions');
     const deepWikiButton = document.querySelector('.deepwiki-button');
     if (navActions && !deepWikiButton) {
       addDeepWikiButton();

app/scripts/content.js renamed to app/scripts/content.ts

@@ -2,13 +2,7 @@
   "$schema": "https://biomejs.dev/schemas/1.8.3/schema.json",
   "files": {
     "include": [
-      "app/scripts/**/*.js"
-    ],
-    "ignore": [
-      "website/client/.vitepress/.temp",
-      "website/client/.vitepress/dist",
-      "website/client/.vitepress/cache",
-      "website/server/dist"
+      "app/scripts/**/*.ts"
     ]
   },
   "organizeImports": {