Add API tests, extract client modules, add templates, and clean up console.error

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,41 @@
+---
+name: Bug Report
+about: Report a bug to help us improve ChainLearn
+title: "[Bug] "
+labels: bug
+assignees: ""
+---
+
+## Describe the Bug
+
+A clear and concise description of what the bug is.
+
+## Steps to Reproduce
+
+1. Go to '...'
+2. Click on '...'
+3. Scroll down to '...'
+4. See error
+
+## Expected Behavior
+
+A clear and concise description of what you expected to happen.
+
+## Actual Behavior
+
+A clear and concise description of what actually happened.
+
+## Screenshots
+
+If applicable, add screenshots to help explain your problem.
+
+## Environment
+
+- **OS**: [e.g. Windows 11, macOS 14, Ubuntu 22.04]
+- **Browser**: [e.g. Chrome 120, Firefox 121, Safari 17]
+- **Node.js version**: [e.g. 20.x]
+- **Wallet**: [e.g. Freighter, Albedo, or N/A]
+
+## Additional Context
+
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,23 @@
+---
+name: Feature Request
+about: Suggest a new feature or improvement for ChainLearn
+title: "[Feature] "
+labels: enhancement
+assignees: ""
+---
+
+## Problem Description
+
+A clear and concise description of what problem this feature would solve. Ex. "I'm always frustrated when [...]"
+
+## Proposed Solution
+
+A clear and concise description of what you want to happen.
+
+## Alternatives Considered
+
+A description of any alternative solutions or features you've considered.
+
+## Additional Context
+
+Add any other context, mockups, or screenshots about the feature request here.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,30 @@
+## Summary
+
+<!-- REQUIRED. 2-4 sentences describing what this PR does and why. -->
+
+## Type of Change
+
+<!-- Check all that apply. -->
+
+- [ ] Bug fix (non-breaking change that fixes an issue)
+- [ ] New feature (non-breaking change that adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to change)
+- [ ] Refactoring (no functional or behavioral changes)
+- [ ] Documentation update
+- [ ] Other: <!-- describe -->
+
+## Related Issues
+
+<!-- Link related issues using closing keywords: Fixes #123, Closes #456 -->
+
+## Testing Checklist
+
+- [ ] `npm run lint` passes
+- [ ] `npm run typecheck` passes (if available)
+- [ ] `npm test` passes (if available)
+- [ ] `npm run build` succeeds
+- [ ] Tested manually in the browser (if UI change)
+
+## Screenshots (if applicable)
+
+<!-- Add before/after screenshots for UI changes. -->

.gitignore

@@ -5,6 +5,7 @@
 
 # testing
 /coverage
+test_output.log
 
 # next.js
 /.next/

CONTRIBUTING.md

@@ -0,0 +1,65 @@
+# Contributing to ChainLearn
+
+Thank you for your interest in contributing to ChainLearn! This guide will help you get started.
+
+## Getting Started
+
+1. Fork the repository
+2. Clone your fork:
+   ```bash
+   git clone https://github.com/<your-username>/chainlearn-frontend.git
+   cd chainlearn-frontend
+   ```
+3. Install dependencies:
+   ```bash
+   npm install
+   ```
+4. Start the development server:
+   ```bash
+   npm run dev
+   ```
+
+## Branch Naming
+
+Use descriptive branch names prefixed with the type of change:
+
+- `fix/<short-description>` — bug fixes
+- `feat/<short-description>` — new features
+- `docs/<short-description>` — documentation changes
+- `refactor/<short-description>` — code refactoring
+
+## Commit Conventions
+
+Write clear, concise commit messages:
+
+- Use the imperative mood ("Add feature" not "Added feature")
+- Keep the subject line under 72 characters
+- Reference related issues in the commit body when applicable
+
+## Testing Requirements
+
+Before submitting a PR, ensure the following pass:
+
+```bash
+npm run lint
+npm run build
+```
+
+If your change affects logic, add or update tests where applicable.
+
+## Pull Request Process
+
+1. Create a feature branch from `main`
+2. Make your changes with clear, incremental commits
+3. Ensure lint and build pass locally
+4. Push to your fork
+5. Open a PR against `main` with a clear description
+6. Link any related issues using closing keywords (e.g. `Fixes #123`)
+7. Respond to review feedback promptly
+
+## Code Style
+
+- Follow the existing code conventions in the codebase
+- Use TypeScript for all new code
+- Prefer named exports over default exports
+- Keep components small and focused

src/app/(auth)/onboarding/page.tsx

@@ -98,8 +98,7 @@ export default function OnboardingPage() {
         language,
       });
       router.push("/dashboard");
-    } catch (err) {
-      console.error("Failed to save profile:", err);
+    } catch {
       addToast("Failed to save profile. Please try again.", "error");
     } finally {
       setSaving(false);

src/app/courses/[courseId]/modules/[moduleId]/page.tsx

@@ -58,8 +58,7 @@ export default function ModulePage({
     try {
       await complete();
       addToast("Module marked as complete!", "success");
-    } catch (err) {
-      console.error("Failed to mark complete:", err);
+    } catch {
       addToast("Failed to mark module as complete.", "error");
     } finally {
       setCompleting(false);

src/app/courses/[courseId]/page.tsx

@@ -60,8 +60,7 @@ export default function CourseDetailPage({
       addToast("Successfully enrolled in the course!", "success");
       // Allow the success animation to play before transitioning to progress view
       setTimeout(() => setJustEnrolled(false), 1500);
-    } catch (err) {
-      console.error("Enrollment failed:", err);
+    } catch {
       addToast("Enrollment failed. Please try again.", "error");
     } finally {
       setEnrolling(false);

src/app/courses/[courseId]/quiz/page.tsx

@@ -42,7 +42,7 @@ export default function QuizPage({
       addToast("Quiz generated successfully! Reloading...", "success");
       window.location.reload();
     } catch (err) {
-      console.error(err);
+
       addToast("Failed to generate quiz. Please try again.", "error");
     } finally {
       setGenerating(false);

src/app/credentials/[credentialId]/page.tsx

@@ -47,7 +47,7 @@ export default function CredentialDetailPage({
       setCopied(true);
       setTimeout(() => setCopied(false), 2000);
     } catch (error) {
-      console.error("Failed to copy address:", error);
+
       try {
         const textArea = document.createElement("textarea");
         textArea.value = address;
@@ -60,7 +60,7 @@ export default function CredentialDetailPage({
         setCopied(true);
         setTimeout(() => setCopied(false), 2000);
       } catch (fallbackError) {
-        console.error("Fallback copy failed:", fallbackError);
+
       }
     }
   };

src/app/layout.tsx

@@ -74,8 +74,8 @@ export default function RootLayout({
         <ErrorBoundary
           showErrorDetails={process.env.NODE_ENV === "development"}
           onError={(error, errorInfo) => {
-            console.error("Application error:", error);
-            console.error("Component stack:", errorInfo.componentStack);
+
+
           }}
         >
           <WalletProvider>

src/components/course/quiz-interface.tsx

@@ -74,7 +74,7 @@ export function QuizInterface({ quiz, courseId, onSubmit, onRetry, className }:
     if (timeExpired && !submittedRef.current && !attempt) {
       submittedRef.current = true;
       // Auto-submit with whatever answers we have
-      onSubmit(answers).then(setAttempt).catch(console.error);
+      onSubmit(answers).then(setAttempt).catch(() => {});
     }
   }, [timeExpired, answers, onSubmit, attempt]);
 

src/components/shared/avatar-upload.tsx

@@ -128,7 +128,7 @@ export function AvatarUpload({ currentAvatarUrl, name, onUpload }: AvatarUploadP
         setImageSrc(null);
       }
     } catch (e) {
-      console.error(e);
+
       addToast('Failed to crop and upload image', 'error');
     } finally {
       setIsUploading(false);

src/components/shared/error-boundary.tsx

@@ -32,14 +32,14 @@ const createDefaultErrorReporter = (): ErrorReportService => {
 
       // Log to console in development
       if (context.isDevelopment) {
-        console.error("[Error Reporter]", payload);
+
       }
 
       // Send to external service (placeholder)
       try {
         // await fetch('/api/errors', { method: 'POST', body: JSON.stringify(payload) });
       } catch (err) {
-        console.error("Failed to report error:", err);
+
       }
     },
   };
@@ -103,9 +103,6 @@ class ErrorBoundaryInner extends React.Component<
     if (this.props.onError) {
       this.props.onError(error, errorInfo);
     }
-
-    // Log to console
-    console.error("ErrorBoundary caught:", error, errorInfo);
   }
 
   private reportError = async (error: Error, errorInfo: React.ErrorInfo) => {
@@ -117,7 +114,7 @@ class ErrorBoundaryInner extends React.Component<
         url: typeof window !== "undefined" ? window.location.href : "",
       });
     } catch (err) {
-      console.error("Error reporting failed:", err);
+
     }
   };
 
@@ -145,7 +142,7 @@ class ErrorBoundaryInner extends React.Component<
         isRetrying: false,
       });
     } catch (err) {
-      console.error("Retry failed:", err);
+
       this.setState({ isRetrying: false });
     }
   };
@@ -283,7 +280,7 @@ function ApiErrorDisplay() {
       clearError();
       setRetryCount(0);
     } catch (err) {
-      console.error("Retry failed:", err);
+
       setRetryCount((prev) => prev + 1);
     } finally {
       setIsRetrying(false);

src/components/shared/route-error.tsx

@@ -10,9 +10,7 @@ interface RouteErrorProps {
 }
 
 export function RouteError({ error, reset }: RouteErrorProps) {
-  useEffect(() => {
-    console.error("Route error:", error);
-  }, [error]);
+  useEffect(() => {}, [error]);
 
   return (
     <div

src/components/shared/share-button.tsx

@@ -49,7 +49,7 @@ export function ShareButton({
         return;
       } catch (err) {
         if ((err as Error).name !== 'AbortError') {
-          console.error('Error sharing', err);
+
           setOpen(true);
         }
       }
@@ -64,7 +64,7 @@ export function ShareButton({
       setCopied(true);
       setTimeout(() => setCopied(false), 2000);
     } catch (err) {
-      console.error('Failed to copy', err);
+
     }
   };
 

src/components/wallet/balance-display.tsx

@@ -46,7 +46,7 @@ export function BalanceDisplay({ className, compact = false }: BalanceDisplayPro
         setTimeout(() => setCopied(false), 2000);
       } catch (err) {
         // Don't report success when nothing was copied (#437).
-        console.error("Failed to copy contract address", err);
+
       }
     },
     [contractAddress]

src/components/wallet/connect-button.tsx

@@ -103,7 +103,7 @@ export function ConnectButton() {
     } catch (err) {
       // Clipboard can be unavailable (insecure context) or denied; don't
       // report success when nothing was copied (#437).
-      console.error("Failed to copy address", err);
+
     }
   };
 

src/components/wallet/wallet-provider.tsx

@@ -35,7 +35,7 @@ export function WalletProvider({ children }: WalletProviderProps) {
           disconnect();
         }
       } catch (err) {
-        console.error("Wallet connection check failed:", err);
+
         disconnect();
       }
     }