feat: support video

src/utils/url.ts

@@ -0,0 +1,47 @@
+export const isImageUrl = (urlString: string): boolean => {
+  try {
+    const url = new URL(urlString);
+    return /\.(jpeg|jpg|png|gif|webp|apng|svg)$/i.test(url.pathname);
+  } catch {
+    return false;
+  }
+};
+
+export const isVideoUrl = (urlString: string): boolean => {
+  try {
+    const url = new URL(urlString);
+    return /\.(mpg|mpeg|mp4|avi|mov|webm|ogv)$/i.test(url.pathname);
+  } catch {
+    return false;
+  }
+};
+
+export const fixUrl = (urlString: string): string => {
+  try {
+    const url = new URL(urlString);
+    // Imgur
+    if (url.host === 'i.imgur.com' || url.host === 'imgur.com') {
+      const match = url.pathname.match(/^\/([a-zA-Z0-9]+)\.(jpg|jpeg|png|gif)/);
+      if (match != null) {
+        const result = new URL(url);
+        const imageId = match[1];
+        result.host = 'i.imgur.com';
+        result.pathname = `${imageId}l.webp`;
+        return result.toString();
+      }
+      return url.toString();
+    }
+
+    // Gyazo
+    if (url.host === 'i.gyazo.com') {
+      const result = new URL(url);
+      result.host = 'thumb.gyazo.com';
+      result.pathname = `/thumb/640_w${url.pathname}`;
+      return result.toString();
+    }
+
+    return url.toString();
+  } catch {
+    return urlString;
+  }
+};