Refinement of folder import

app/components/chat/ImportFolderButton.tsx

@@ -1,102 +1,73 @@
-import React from 'react';
+import React, { useState } from 'react';
 import type { Message } from 'ai';
 import { toast } from 'react-toastify';
-import ignore from 'ignore';
+import { MAX_FILES, isBinaryFile, shouldIncludeFile } from '../../utils/fileUtils';
+import { createChatFromFolder } from '../../utils/folderImport';
 
 interface ImportFolderButtonProps {
   className?: string;
   importChat?: (description: string, messages: Message[]) => Promise<void>;
 }
 
-// Common patterns to ignore, similar to .gitignore
-const IGNORE_PATTERNS = [
-  'node_modules/**',
-  '.git/**',
-  'dist/**',
-  'build/**',
-  '.next/**',
-  'coverage/**',
-  '.cache/**',
-  '.vscode/**',
-  '.idea/**',
-  '**/*.log',
-  '**/.DS_Store',
-  '**/npm-debug.log*',
-  '**/yarn-debug.log*',
-  '**/yarn-error.log*',
-];
-
-const ig = ignore().add(IGNORE_PATTERNS);
-const generateId = () => Math.random().toString(36).substring(2, 15);
-
-const isBinaryFile = async (file: File): Promise<boolean> => {
-  const chunkSize = 1024; // Read the first 1 KB of the file
-  const buffer = new Uint8Array(await file.slice(0, chunkSize).arrayBuffer());
-
-  for (let i = 0; i < buffer.length; i++) {
-    const byte = buffer[i];
-
-    if (byte === 0 || (byte < 32 && byte !== 9 && byte !== 10 && byte !== 13)) {
-      return true; // Found a binary character
-    }
-  }
-
-  return false;
-};
-
 export const ImportFolderButton: React.FC<ImportFolderButtonProps> = ({ className, importChat }) => {
-  const shouldIncludeFile = (path: string): boolean => {
-    return !ig.ignores(path);
-  };
-
-  const createChatFromFolder = async (files: File[], binaryFiles: string[]) => {
-    const fileArtifacts = await Promise.all(
-      files.map(async (file) => {
-        return new Promise<string>((resolve, reject) => {
-          const reader = new FileReader();
-
-          reader.onload = () => {
-            const content = reader.result as string;
-            const relativePath = file.webkitRelativePath.split('/').slice(1).join('/');
-            resolve(
-              `<boltAction type="file" filePath="${relativePath}">
-${content}
-</boltAction>`,
-            );
-          };
-          reader.onerror = reject;
-          reader.readAsText(file);
-        });
-      }),
-    );
-
-    const binaryFilesMessage =
-      binaryFiles.length > 0
-        ? `\n\nSkipped ${binaryFiles.length} binary files:\n${binaryFiles.map((f) => `- ${f}`).join('\n')}`
-        : '';
+  const [isLoading, setIsLoading] = useState(false);
 
-    const message: Message = {
-      role: 'assistant',
-      content: `I'll help you set up these files.${binaryFilesMessage}
+  const handleFileChange = async (e: React.ChangeEvent<HTMLInputElement>) => {
+    const allFiles = Array.from(e.target.files || []);
 
-<boltArtifact id="imported-files" title="Imported Files" type="bundled">
-${fileArtifacts.join('\n\n')}
-</boltArtifact>`,
-      id: generateId(),
-      createdAt: new Date(),
-    };
-
-    const userMessage: Message = {
-      role: 'user',
-      id: generateId(),
-      content: 'Import my files',
-      createdAt: new Date(),
-    };
-
-    const description = `Folder Import: ${files[0].webkitRelativePath.split('/')[0]}`;
-
-    if (importChat) {
-      await importChat(description, [userMessage, message]);
+    if (allFiles.length > MAX_FILES) {
+      toast.error(
+        `This folder contains ${allFiles.length.toLocaleString()} files. This product is not yet optimized for very large projects. Please select a folder with fewer than ${MAX_FILES.toLocaleString()} files.`
+      );
+      return;
+    }
+    const folderName = allFiles[0]?.webkitRelativePath.split('/')[0] || 'Unknown Folder';
+    setIsLoading(true);
+    const loadingToast = toast.loading(`Importing ${folderName}...`);
+
+    try {
+      const filteredFiles = allFiles.filter((file) => shouldIncludeFile(file.webkitRelativePath));
+
+      if (filteredFiles.length === 0) {
+        toast.error('No files found in the selected folder');
+        return;
+      }
+
+      const fileChecks = await Promise.all(
+        filteredFiles.map(async (file) => ({
+          file,
+          isBinary: await isBinaryFile(file),
+        })),
+      );
+
+      const textFiles = fileChecks.filter((f) => !f.isBinary).map((f) => f.file);
+      const binaryFilePaths = fileChecks
+        .filter((f) => f.isBinary)
+        .map((f) => f.file.webkitRelativePath.split('/').slice(1).join('/'));
+
+      if (textFiles.length === 0) {
+        toast.error('No text files found in the selected folder');
+        return;
+      }
+
+      if (binaryFilePaths.length > 0) {
+        toast.info(`Skipping ${binaryFilePaths.length} binary files`);
+      }
+
+      const { userMessage, assistantMessage } = await createChatFromFolder(textFiles, binaryFilePaths, folderName);
+
+      if (importChat) {
+        await importChat(folderName, [userMessage, assistantMessage]);
+      }
+
+      toast.success('Folder imported successfully');
+    } catch (error) {
+      console.error('Failed to import folder:', error);
+      toast.error('Failed to import folder');
+    } finally {
+      setIsLoading(false);
+      toast.dismiss(loadingToast);
+      e.target.value = ''; // Reset file input
     }
   };
 
@@ -108,56 +79,19 @@ ${fileArtifacts.join('\n\n')}
         className="hidden"
         webkitdirectory=""
         directory=""
-        onChange={async (e) => {
-          const allFiles = Array.from(e.target.files || []);
-          const filteredFiles = allFiles.filter((file) => shouldIncludeFile(file.webkitRelativePath));
-
-          if (filteredFiles.length === 0) {
-            toast.error('No files found in the selected folder');
-            return;
-          }
-
-          try {
-            const fileChecks = await Promise.all(
-              filteredFiles.map(async (file) => ({
-                file,
-                isBinary: await isBinaryFile(file),
-              })),
-            );
-
-            const textFiles = fileChecks.filter((f) => !f.isBinary).map((f) => f.file);
-            const binaryFilePaths = fileChecks
-              .filter((f) => f.isBinary)
-              .map((f) => f.file.webkitRelativePath.split('/').slice(1).join('/'));
-
-            if (textFiles.length === 0) {
-              toast.error('No text files found in the selected folder');
-              return;
-            }
-
-            if (binaryFilePaths.length > 0) {
-              toast.info(`Skipping ${binaryFilePaths.length} binary files`);
-            }
-
-            await createChatFromFolder(textFiles, binaryFilePaths);
-          } catch (error) {
-            console.error('Failed to import folder:', error);
-            toast.error('Failed to import folder');
-          }
-
-          e.target.value = ''; // Reset file input
-        }}
-        {...({} as any)} // if removed webkitdirectory will throw errors as unknow attribute
+        onChange={handleFileChange}
+        {...({} as any)}
       />
       <button
         onClick={() => {
           const input = document.getElementById('folder-import');
           input?.click();
         }}
         className={className}
+        disabled={isLoading}
       >
         <div className="i-ph:upload-simple" />
-        Import Folder
+        {isLoading ? 'Importing...' : 'Import Folder'}
       </button>
     </>
   );

app/utils/fileUtils.ts

@@ -0,0 +1,97 @@
+import ignore from 'ignore';
+
+// Common patterns to ignore, similar to .gitignore
+export const IGNORE_PATTERNS = [
+  'node_modules/**',
+  '.git/**',
+  'dist/**',
+  'build/**',
+  '.next/**',
+  'coverage/**',
+  '.cache/**',
+  '.vscode/**',
+  '.idea/**',
+  '**/*.log',
+  '**/.DS_Store',
+  '**/npm-debug.log*',
+  '**/yarn-debug.log*',
+  '**/yarn-error.log*',
+];
+
+export const MAX_FILES = 1000;
+export const ig = ignore().add(IGNORE_PATTERNS);
+
+export const generateId = () => Math.random().toString(36).substring(2, 15);
+
+export const isBinaryFile = async (file: File): Promise<boolean> => {
+  const chunkSize = 1024;
+  const buffer = new Uint8Array(await file.slice(0, chunkSize).arrayBuffer());
+
+  for (let i = 0; i < buffer.length; i++) {
+    const byte = buffer[i];
+    if (byte === 0 || (byte < 32 && byte !== 9 && byte !== 10 && byte !== 13)) {
+      return true;
+    }
+  }
+  return false;
+};
+
+export const shouldIncludeFile = (path: string): boolean => {
+  return !ig.ignores(path);
+};
+
+const readPackageJson = async (files: File[]): Promise<{ scripts?: Record<string, string> } | null> => {
+  const packageJsonFile = files.find(f => f.webkitRelativePath.endsWith('package.json'));
+  if (!packageJsonFile) return null;
+
+  try {
+    const content = await new Promise<string>((resolve, reject) => {
+      const reader = new FileReader();
+      reader.onload = () => resolve(reader.result as string);
+      reader.onerror = reject;
+      reader.readAsText(packageJsonFile);
+    });
+
+    return JSON.parse(content);
+  } catch (error) {
+    console.error('Error reading package.json:', error);
+    return null;
+  }
+};
+
+export const detectProjectType = async (files: File[]): Promise<{ type: string; setupCommand: string; followupMessage: string }> => {
+  const hasFile = (name: string) => files.some(f => f.webkitRelativePath.endsWith(name));
+
+  if (hasFile('package.json')) {
+    const packageJson = await readPackageJson(files);
+    const scripts = packageJson?.scripts || {};
+
+    // Check for preferred commands in priority order
+    const preferredCommands = ['dev', 'start', 'preview'];
+    const availableCommand = preferredCommands.find(cmd => scripts[cmd]);
+
+    if (availableCommand) {
+      return {
+        type: 'Node.js',
+        setupCommand: `npm install && npm run ${availableCommand}`,
+        followupMessage: `Found "${availableCommand}" script in package.json. Running "npm run ${availableCommand}" after installation.`
+      };
+    }
+
+    return {
+      type: 'Node.js',
+      setupCommand: 'npm install',
+      followupMessage: 'Would you like me to inspect package.json to determine the available scripts for running this project?'
+    };
+  }
+
+  if (hasFile('index.html')) {
+    return {
+      type: 'Static',
+      setupCommand: 'npx --yes serve',
+      followupMessage: ''
+    };
+  }
+
+  return { type: '', setupCommand: '', followupMessage: '' };
+};

app/utils/folderImport.ts

@@ -0,0 +1,56 @@
+import type { Message } from 'ai';
+import { generateId, detectProjectType } from './fileUtils';
+
+export const createChatFromFolder = async (
+  files: File[],
+  binaryFiles: string[],
+  folderName: string
+): Promise<{ userMessage: Message; assistantMessage: Message }> => {
+  const fileArtifacts = await Promise.all(
+    files.map(async (file) => {
+      return new Promise<string>((resolve, reject) => {
+        const reader = new FileReader();
+        reader.onload = () => {
+          const content = reader.result as string;
+          const relativePath = file.webkitRelativePath.split('/').slice(1).join('/');
+          resolve(
+            `<boltAction type="file" filePath="${relativePath}">
+${content}
+</boltAction>`,
+          );
+        };
+        reader.onerror = reject;
+        reader.readAsText(file);
+      });
+    }),
+  );
+
+  const project = await detectProjectType(files);
+  const setupCommand = project.setupCommand ? `\n\n<boltAction type="shell">\n${project.setupCommand}\n</boltAction>` : '';
+  const followupMessage = project.followupMessage ? `\n\n${project.followupMessage}` : '';
+
+  const binaryFilesMessage = binaryFiles.length > 0
+    ? `\n\nSkipped ${binaryFiles.length} binary files:\n${binaryFiles.map((f) => `- ${f}`).join('\n')}`
+    : '';
+
+  const assistantMessage: Message = {
+    role: 'assistant',
+    content: `I've imported the contents of the "${folderName}" folder.${binaryFilesMessage}
+
+<boltArtifact id="imported-files" title="Imported Files">
+${fileArtifacts.join('\n\n')}
+${setupCommand}
+</boltArtifact>${followupMessage}`,
+    id: generateId(),
+    createdAt: new Date(),
+  };
+
+  const userMessage: Message = {
+    role: 'user',
+    id: generateId(),
+    content: `Import the "${folderName}" folder`,
+    createdAt: new Date(),
+  };
+
+  return { userMessage, assistantMessage };
+};