Integrate complete Candidat platform with ASP.NET chatbot service

- Added Next.js frontend for candidate interviews - Added Node.js backend with TypeScript and AI integration - Added ASP.NET Core chatbot service for specialized AI conversations - Added MySQL database with complete schema - Added Nginx reverse proxy configuration - Complete Docker Compose orchestration for all services - Environment configuration for production, development, and Cloudflare - Comprehensive documentation and setup instructions - Flattened nested folder structures for clean organization - Integrated chatbot service with fallback to direct AI calls
2025-09-20 10:45:21 +02:00
parent bcd25503c5
commit ec8342b5e2
128 changed files with 27581 additions and 10 deletions
@@ -0,0 +1,403 @@
+"use client";
+
+import { useState, useEffect, useRef } from 'react';
+import { Job, Message } from '../types';
+
+interface ChatScreenProps {
+  job: Job;
+  candidateName: string;
+  linkId: string;
+  isTestMode?: boolean;
+  mandatoryAnswers?: string[];
+  onComplete: () => void;
+}
+
+export default function ChatScreen({ job, candidateName, linkId, isTestMode = false, mandatoryAnswers = [], onComplete }: ChatScreenProps) {
+  const [messages, setMessages] = useState<Message[]>([]);
+  const [inputMessage, setInputMessage] = useState('');
+  const [isLoading, setIsLoading] = useState(false);
+  const [isInitializing, setIsInitializing] = useState(true);
+  const [error, setError] = useState('');
+  const [isTyping, setIsTyping] = useState(false);
+  const [typingMessage, setTypingMessage] = useState('');
+  const messagesEndRef = useRef<HTMLDivElement>(null);
+
+  const scrollToBottom = () => {
+    messagesEndRef.current?.scrollIntoView({ behavior: "smooth" });
+  };
+
+  // Build conversation history from mandatory answers for test mode
+  const buildConversationHistory = () => {
+    if (!isTestMode || !mandatoryAnswers.length) return [];
+    
+    const history: Message[] = [];
+    const mandatoryQuestions = job.interview_questions || [];
+    
+    for (let i = 0; i < mandatoryQuestions.length; i++) {
+      if (mandatoryAnswers[i]) {
+        history.push({
+          id: `q-${i + 1}`,
+          sender: 'ai',
+          content: `Question ${i + 1}: ${mandatoryQuestions[i]}`,
+          timestamp: new Date()
+        });
+        history.push({
+          id: `a-${i + 1}`,
+          sender: 'user',
+          content: mandatoryAnswers[i],
+          timestamp: new Date()
+        });
+      }
+    }
+    
+    return history;
+  };
+
+  useEffect(() => {
+    scrollToBottom();
+  }, [messages, typingMessage]);
+
+  // Typing effect function
+  const simulateTyping = (text: string, onComplete: (finalText: string) => void) => {
+    setIsTyping(true);
+    setTypingMessage('');
+    
+    let currentIndex = 0;
+    const typingSpeed = 20 + Math.random() * 30; // Random speed between 20-50ms per character
+    
+    const typeNextCharacter = () => {
+      if (currentIndex < text.length) {
+        setTypingMessage(text.slice(0, currentIndex + 1));
+        currentIndex++;
+        setTimeout(typeNextCharacter, typingSpeed);
+      } else {
+        setIsTyping(false);
+        onComplete(text);
+      }
+    };
+    
+    // Small delay before starting to type
+    setTimeout(typeNextCharacter, 500);
+  };
+
+  useEffect(() => {
+    initializeChat();
+  }, []);
+
+  const initializeChat = async () => {
+    try {
+      setIsInitializing(true);
+      
+      // Send initial data to AI endpoint
+      const response = await fetch(`${process.env.NEXT_PUBLIC_API_URL}/rest/ai/start-interview${isTestMode ? '?test=true' : ''}`, {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+        body: JSON.stringify({
+          candidateName,
+          job: job,
+          linkId,
+          test: isTestMode
+        })
+      });
+
+      if (response.ok) {
+        const data = await response.json();
+        
+        // Use typing effect for AI's initial message
+        const aiMessage = data.message || "Hello! I'm your evaluation agent. Let's begin the interview for the " + job.title + " position. Please tell me about yourself and your interest in this role.";
+        
+        simulateTyping(aiMessage, (finalText) => {
+          setMessages([{
+            id: '1',
+            content: finalText,
+            sender: 'ai',
+            timestamp: new Date()
+          }]);
+        });
+      } else {
+        throw new Error('Failed to initialize chat');
+      }
+    } catch (error) {
+      console.error('Error initializing chat:', error);
+      setError('Failed to start the interview. Please try again.');
+      
+      // Add fallback message with typing effect
+      const fallbackMessage = "Hello! I'm your evaluation agent. Let's begin the interview for the " + job.title + " position. Please tell me about yourself and your interest in this role.";
+      
+      simulateTyping(fallbackMessage, (finalText) => {
+        setMessages([{
+          id: '1',
+          content: finalText,
+          sender: 'ai',
+          timestamp: new Date()
+        }]);
+      });
+    } finally {
+      setIsInitializing(false);
+    }
+  };
+
+  const sendMessage = async () => {
+    if (!inputMessage.trim() || isLoading) return;
+
+    const userMessage: Message = {
+      id: Date.now().toString(),
+      content: inputMessage.trim(),
+      sender: 'user',
+      timestamp: new Date()
+    };
+
+    setMessages(prev => [...prev, userMessage]);
+    setInputMessage('');
+    setIsLoading(true);
+
+    try {
+      // Build conversation history for test mode
+      const conversationHistory = isTestMode ? 
+        [...buildConversationHistory(), ...messages.filter(msg => msg.content && msg.content !== 'undefined')] : 
+        messages;
+
+      const response = await fetch(`${process.env.NEXT_PUBLIC_API_URL}/rest/ai/chat${isTestMode ? '?test=true' : ''}`, {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+        body: JSON.stringify({
+          message: userMessage.content,
+          candidateName,
+          job: job,
+          linkId,
+          conversationHistory: conversationHistory.map(msg => ({
+            sender: msg.sender === 'user' ? 'candidate' : msg.sender,
+            message: msg.content,
+            timestamp: msg.timestamp
+          })),
+          test: isTestMode
+        })
+      });
+
+      if (response.ok) {
+        const data = await response.json();
+        
+        // Use typing effect for AI response
+        const aiResponseText = data.message || "Thank you for your response. Let me ask you another question...";
+        
+        simulateTyping(aiResponseText, (finalText) => {
+          const aiMessage: Message = {
+            id: (Date.now() + 1).toString(),
+            content: finalText,
+            sender: 'ai',
+            timestamp: new Date()
+          };
+
+          setMessages(prev => [...prev, aiMessage]);
+
+          // Check if interview is complete
+          if (data.isComplete) {
+            setTimeout(() => {
+              onComplete();
+            }, 2000);
+          }
+        });
+      } else {
+        throw new Error('Failed to send message');
+      }
+    } catch (error) {
+      console.error('Error sending message:', error);
+      setError('Failed to send message. Please try again.');
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  const handleKeyPress = (e: React.KeyboardEvent) => {
+    if (e.key === 'Enter' && !e.shiftKey) {
+      e.preventDefault();
+      sendMessage();
+    }
+  };
+
+  const formatTime = (date: Date) => {
+    return date.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' });
+  };
+
+  if (isInitializing) {
+    return (
+      <div className="min-h-screen bg-gray-50 flex items-center justify-center">
+        <div className="text-center">
+          <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-600 mx-auto"></div>
+          <p className="mt-4 text-gray-600">Initializing interview...</p>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="min-h-screen bg-gray-50 flex flex-col">
+      {/* Header */}
+      <div className="bg-white shadow-sm border-b px-4 py-4">
+        <div className="max-w-4xl mx-auto">
+          <div className="flex items-center justify-between">
+            <div>
+              <h1 className="text-xl font-semibold text-gray-900">
+                Interview: {job.title}
+              </h1>
+              <p className="text-sm text-gray-600">
+                Candidate: {candidateName} • {job.location || "Remote"}
+              </p>
+            </div>
+            <div className="flex items-center space-x-2">
+              <div className="w-3 h-3 bg-green-500 rounded-full"></div>
+              <span className="text-sm text-gray-500">AI Agent Online</span>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      {/* Error Banner */}
+      {error && (
+        <div className="bg-red-50 border-b border-red-200 px-4 py-3">
+          <div className="max-w-4xl mx-auto">
+            <div className="flex items-center space-x-2">
+              <svg className="w-5 h-5 text-red-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 8v4m0 4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
+              </svg>
+              <span className="text-red-800">{error}</span>
+              <button
+                onClick={() => setError('')}
+                className="ml-auto text-red-600 hover:text-red-800"
+              >
+                <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
+                </svg>
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
+
+      {/* Messages */}
+      <div className="flex-1 overflow-y-auto px-4 py-6">
+        <div className="max-w-4xl mx-auto space-y-6">
+          {messages.map((message) => (
+            <div
+              key={message.id}
+              className={`flex ${message.sender === 'user' ? 'justify-end' : 'justify-start'}`}
+            >
+              <div
+                className={`max-w-3xl px-6 py-4 rounded-2xl ${
+                  message.sender === 'user'
+                    ? 'bg-blue-600 text-white'
+                    : 'bg-white text-gray-900 border border-gray-200'
+                }`}
+              >
+                <div className="flex items-start space-x-3">
+                  {message.sender === 'ai' && (
+                    <div className="w-8 h-8 bg-blue-100 rounded-full flex items-center justify-center flex-shrink-0">
+                      <svg className="w-4 h-4 text-blue-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9.75 17L9 20l-1 1h8l-1-1-.75-3M3 13h18M5 17h14a2 2 0 002-2V5a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z" />
+                      </svg>
+                    </div>
+                  )}
+                  <div className="flex-1">
+                    <p className="whitespace-pre-wrap">{message.content}</p>
+                    <p className={`text-xs mt-2 ${
+                      message.sender === 'user' ? 'text-blue-100' : 'text-gray-500'
+                    }`}>
+                      {formatTime(message.timestamp)}
+                    </p>
+                  </div>
+                  {message.sender === 'user' && (
+                    <div className="w-8 h-8 bg-blue-500 rounded-full flex items-center justify-center flex-shrink-0">
+                      <svg className="w-4 h-4 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z" />
+                      </svg>
+                    </div>
+                  )}
+                </div>
+              </div>
+            </div>
+          ))}
+          
+          {isLoading && !isTyping && (
+            <div className="flex justify-start">
+              <div className="bg-white text-gray-900 border border-gray-200 rounded-2xl px-6 py-4">
+                <div className="flex items-center space-x-3">
+                  <div className="w-8 h-8 bg-blue-100 rounded-full flex items-center justify-center">
+                    <svg className="w-4 h-4 text-blue-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9.75 17L9 20l-1 1h8l-1-1-.75-3M3 13h18M5 17h14a2 2 0 002-2V5a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z" />
+                    </svg>
+                  </div>
+                  <div className="flex space-x-1">
+                    <div className="w-2 h-2 bg-gray-400 rounded-full animate-bounce"></div>
+                    <div className="w-2 h-2 bg-gray-400 rounded-full animate-bounce" style={{ animationDelay: '0.1s' }}></div>
+                    <div className="w-2 h-2 bg-gray-400 rounded-full animate-bounce" style={{ animationDelay: '0.2s' }}></div>
+                  </div>
+                </div>
+              </div>
+            </div>
+          )}
+
+          {isTyping && (
+            <div className="flex justify-start">
+              <div className="bg-white text-gray-900 border border-gray-200 rounded-2xl px-6 py-4">
+                <div className="flex items-start space-x-3">
+                  <div className="w-8 h-8 bg-blue-100 rounded-full flex items-center justify-center flex-shrink-0">
+                    <svg className="w-4 h-4 text-blue-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9.75 17L9 20l-1 1h8l-1-1-.75-3M3 13h18M5 17h14a2 2 0 002-2V5a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z" />
+                    </svg>
+                  </div>
+                  <div className="flex-1">
+                    <p className="whitespace-pre-wrap">{typingMessage}</p>
+                    <div className="flex items-center mt-2">
+                      <div className="w-2 h-2 bg-blue-500 rounded-full animate-pulse"></div>
+                    </div>
+                  </div>
+                </div>
+              </div>
+            </div>
+          )}
+          
+          <div ref={messagesEndRef} />
+        </div>
+      </div>
+
+      {/* Input */}
+      <div className="bg-white border-t px-4 py-4">
+        <div className="max-w-4xl mx-auto">
+          <div className="flex space-x-4">
+            <div className="flex-1">
+              <textarea
+                value={inputMessage}
+                onChange={(e) => setInputMessage(e.target.value)}
+                onKeyPress={handleKeyPress}
+                placeholder="Type your response here..."
+                className="w-full px-4 py-3 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 resize-none text-gray-900 placeholder-gray-500 bg-white"
+                rows={3}
+                disabled={isLoading || isTyping}
+              />
+            </div>
+            <button
+              onClick={sendMessage}
+              disabled={!inputMessage.trim() || isLoading || isTyping}
+              className="px-6 py-3 bg-blue-600 text-white rounded-lg hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+            >
+              {isLoading ? (
+                <div className="w-5 h-5 border-2 border-white border-t-transparent rounded-full animate-spin"></div>
+              ) : (
+                <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 19l9 2-9-18-9 18 9-2zm0 0v-8" />
+                </svg>
+              )}
+            </button>
+          </div>
+          <p className="text-xs text-gray-500 mt-2">
+            Press Enter to send, Shift+Enter for new line
+          </p>
+        </div>
+      </div>
+    </div>
+  );
+}