Add reverse sort to log viewer and environment-aware routing

package.json

@@ -114,6 +114,7 @@
   },
   "license": "MIT",
   "dependencies": {
+    "@monaco-editor/react": "^4.7.0",
     "axios": "^1.10.0",
     "dotenv": "^16.3.1",
     "electron-squirrel-startup": "^1.0.1",

scripts/fastapi/auth.py

@@ -1,3 +1,4 @@
+# Deployment timestamp: 2024-12-19 00:00:00 UTC
 """
 Authentication and rate limiting for YeetCode API
 """

scripts/fastapi/aws.py

@@ -1,12 +1,14 @@
+# Deployment timestamp: 2024-12-19 00:00:00 UTC
 """
 AWS DynamoDB operations for YeetCode
 Includes graceful error handling for AWS service disruptions
 """
 
 import os
 import time
+import secrets
 import boto3
-from datetime import datetime, timezone
+from datetime import datetime, timezone, timedelta
 from typing import Dict, Optional, List, Any
 from botocore.exceptions import ClientError
 from dotenv import load_dotenv
@@ -1872,3 +1874,112 @@ async def handle_duel_timeouts() -> Dict:
             if DEBUG_MODE:
                 print(f"[ERROR] Failed to handle duel timeouts: {error}")
             return {"success": False, "error": str(error)}
+
+
+class DuelInviteLinkOperations:
+    """Operations for managing duel invite links"""
+
+    @staticmethod
+    def generate_duel_link(
+        challenger_username: str,
+        difficulty: str,
+        is_wager: bool = False,
+        wager_amount: int = None
+    ) -> Dict:
+        """Generate a shareable duel invite link"""
+        try:
+            check_aws_connection()
+
+            if not USERS_TABLE:
+                raise Exception("USERS_TABLE not configured")
+
+            # Generate secure token
+            token = secrets.token_urlsafe(32)
+
+            # Calculate expiration (7 days from now)
+            expires_at = datetime.now(timezone.utc) + timedelta(days=7)
+            ttl = int(expires_at.timestamp())
+
+            # Store invite link info in USERS_TABLE with prefix (similar to verification codes)
+            invite_key = f"duel_invite_{token}"
+
+            invite_data = {
+                'username': {'S': invite_key},
+                'challenger_username': {'S': challenger_username.lower()},
+                'difficulty': {'S': difficulty},
+                'is_wager': {'S': 'Yes' if is_wager else 'No'},
+                'wager_amount': {'N': str(wager_amount) if wager_amount else '0'},
+                'created_at': {'S': datetime.now(timezone.utc).isoformat()},
+                'expires_at': {'S': expires_at.isoformat()},
+                'ttl': {'N': str(ttl)}
+            }
+
+            ddb.put_item(
+                TableName=USERS_TABLE,
+                Item=invite_data
+            )
+
+            # Generate shareable link
+            invite_url = f"https://yeetcode.xyz/duel/{token}"
+
+            if DEBUG_MODE:
+                print(f"[DEBUG] Generated duel invite link: {token} for {challenger_username}")
+
+            return {
+                "success": True,
+                "token": token,
+                "invite_url": invite_url,
+                "expires_at": expires_at.isoformat()
+            }
+
+        except Exception as error:
+            if DEBUG_MODE:
+                print(f"[ERROR] Failed to generate duel link: {error}")
+            raise error
+
+    @staticmethod
+    def get_duel_link_info(token: str) -> Optional[Dict]:
+        """Get duel invite link information by token"""
+        try:
+            check_aws_connection()
+
+            if not USERS_TABLE:
+                raise Exception("USERS_TABLE not configured")
+
+            invite_key = f"duel_invite_{token}"
+
+            response = ddb.get_item(
+                TableName=USERS_TABLE,
+                Key={'username': {'S': invite_key}}
+            )
+
+            if 'Item' not in response:
+                return None
+
+            item = normalize_dynamodb_item(response['Item'])
+
+            # Check if expired
+            expires_at_str = item.get('expires_at')
+            if expires_at_str:
+                expires_at = datetime.fromisoformat(expires_at_str.replace('Z', '+00:00'))
+                if datetime.now(timezone.utc) > expires_at:
+                    # Delete expired invite
+                    ddb.delete_item(
+                        TableName=USERS_TABLE,
+                        Key={'username': {'S': invite_key}}
+                    )
+                    return None
+
+            return {
+                "challenger_username": item.get('challenger_username'),
+                "difficulty": item.get('difficulty'),
+                "is_wager": item.get('is_wager') == 'Yes',
+                "wager_amount": int(item.get('wager_amount', 0)),
+                "created_at": item.get('created_at'),
+                "expires_at": item.get('expires_at')
+            }
+
+        except Exception as error:
+            if DEBUG_MODE:
+                print(f"[ERROR] Failed to get duel link info: {error}")
+            return None

scripts/fastapi/background_tasks.py

@@ -1,3 +1,4 @@
+# Deployment timestamp: 2024-12-19 00:00:00 UTC
 """
 Background tasks for YeetCode FastAPI server
 Replaces AWS Lambda functions with integrated FastAPI background jobs
@@ -144,7 +145,8 @@ async def process_single_user(username: str) -> bool:
         current_easy = user_data.get("easy", 0)
         current_medium = user_data.get("medium", 0)
         current_hard = user_data.get("hard", 0)
-        current_xp = user_data.get("xp", 0)  # Preserve existing bonus XP
+        # Preserve existing bonus XP (convert to int in case stored as string)
+        current_xp = int(user_data.get("xp", 0)) if user_data.get("xp") else 0
 
         # Only update if changed
         if (stats["easy"] != current_easy or

scripts/fastapi/cache_dumper.py

@@ -1,3 +1,4 @@
+# Deployment timestamp: 2024-12-19 00:00:00 UTC
 """
 Cache Dumper for YeetCode FastAPI
 

scripts/fastapi/cache_loader.py

@@ -1,3 +1,4 @@
+# Deployment timestamp: 2024-12-19 00:00:00 UTC
 """
 Cache Loader for YeetCode FastAPI
 

scripts/fastapi/cache_manager.py

@@ -1,3 +1,4 @@
+# Deployment timestamp: 2024-12-19 00:00:00 UTC
 """
 Cache Manager for FastAPI - Server-side caching system
 """

scripts/fastapi/cache_operations.py

@@ -1,3 +1,4 @@
+# Deployment timestamp: 2024-12-19 00:00:00 UTC
 """
 Cache Operations Helper for YeetCode FastAPI
 
@@ -130,8 +131,8 @@ def award_xp_in_cache(username: str, xp_amount: int) -> bool:
         if not user:
             return False
 
-        # Increment XP
-        current_xp = user.get('xp', 0)
+        # Increment XP (ensure int conversion in case DB stored as string)
+        current_xp = int(user.get('xp', 0)) if user.get('xp') else 0
         user['xp'] = current_xp + xp_amount
 
         # Write back to cache

scripts/fastapi/discord_webhook.py

@@ -1,3 +1,4 @@
+# Deployment timestamp: 2024-12-19 00:00:00 UTC
 """
 Discord webhook utility for sending notifications
 """

scripts/fastapi/email_service.py

@@ -1,3 +1,4 @@
+# Deployment timestamp: 2024-12-19 00:00:00 UTC
 """
 Email operations for YeetCode using Resend
 """
@@ -70,4 +71,64 @@ def send_email_otp(email: str, code: str) -> Dict:
     except Exception as error:
         if DEBUG_MODE:
             print(f"[ERROR] Failed to send email: {error}")
-        raise Exception(f"Failed to send email: {str(error)}")
+        raise Exception(f"Failed to send email: {str(error)}")
+
+
+def send_yeetcode_invite(
+    recipient_email: str,
+    challenger_username: str,
+    challengee_username: str
+) -> Dict:
+    """Send simple YeetCode invite email"""
+    try:
+        if not resend.api_key:
+            if DEBUG_MODE:
+                print(f"[DEBUG] No Resend API key, using mock email for development")
+            return {"success": True, "messageId": f"mock-invite-{int(time.time())}"}
+
+        if DEBUG_MODE:
+            print(f"[DEBUG] Sending YeetCode invite email to {recipient_email}")
+
+        response = resend.Emails.send({
+            "from": "YeetCode <auth@yeetcode.xyz>",
+            "to": [recipient_email],
+            "subject": f"Join YeetCode to duel {challenger_username}",
+            "html": f"""
+                <div style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; max-width: 600px; margin: 0 auto; padding: 20px;">
+                    <div style="text-align: center; margin-bottom: 30px;">
+                        <h1 style="color: #1a1a1a; font-size: 28px; margin: 0;">🚀 YeetCode</h1>
+                        <p style="color: #666; font-size: 16px; margin: 10px 0 0 0;">Competitive LeetCode Platform</p>
+                    </div>
+
+                    <div style="background: #f8f9fa; border: 2px solid #000; border-radius: 12px; padding: 30px; text-align: center;">
+                        <h2 style="color: #1a1a1a; font-size: 24px; margin: 0 0 20px 0;">You've been invited!</h2>
+
+                        <p style="color: #374151; font-size: 16px; margin: 20px 0 10px 0;">
+                            Hi {challengee_username},
+                        </p>
+
+                        <p style="color: #374151; font-size: 16px; margin: 20px 0 10px 0;">
+                            <strong>{challenger_username}</strong> wants to duel you on YeetCode!
+                        </p>
+
+                        <p style="color: #374151; font-size: 16px; margin: 20px 0 10px 0;">
+                            Sign up at <a href="https://yeetcode.xyz" style="color: #2563eb; text-decoration: none; font-weight: bold;">yeetcode.xyz</a> to accept the challenge.
+                        </p>
+                    </div>
+
+                    <div style="text-align: center; margin-top: 30px; color: #9ca3af; font-size: 12px;">
+                        <p>If you didn't expect this invite, you can safely ignore this email.</p>
+                        <p>© 2025 YeetCode. Ready to compete?</p>
+                    </div>
+                </div>
+            """
+        })
+
+        if DEBUG_MODE:
+            print(f"[DEBUG] YeetCode invite email sent successfully: {response.get('id')}")
+        return {"success": True, "messageId": response.get("id")}
+
+    except Exception as error:
+        if DEBUG_MODE:
+            print(f"[ERROR] Failed to send YeetCode invite email: {str(error)}")
+        raise Exception(f"Failed to send YeetCode invite email: {str(error)}")

scripts/fastapi/logger.py

@@ -1,3 +1,4 @@
+# Deployment timestamp: 2024-12-19 00:00:00 UTC
 """
 Centralized logging system for YeetCode FastAPI backend