export interface InterviewRole {
  id: string;
  title: string;
  icon: string;
  description: string;
  color: string;
  gradient: string;
  topics: string[];
}

export interface InterviewConfig {
  role: InterviewRole;
  difficulty: 'beginner' | 'intermediate' | 'advanced';
  questionCount: number;
  timeLimit: number; // in minutes, 0 = unlimited
}

export interface Question {
  id: number;
  text: string;
  category: string;
  difficulty: string;
}

export interface Answer {
  questionId: number;
  text: string;
  timestamp: number;
}

export interface Evaluation {
  questionId: number;
  score: number; // 0-10
  relevance: number; // 0-10
  clarity: number; // 0-10
  technicalAccuracy: number; // 0-10
  confidence: number; // 0-10
  strengths: string[];
  weaknesses: string[];
  suggestions: string[];
  sampleAnswer: string;
}

export interface ChatMessage {
  id: string;
  role: 'ai' | 'user';
  content: string;
  timestamp: number;
  questionId?: number;
  evaluation?: Evaluation;
}

export interface SessionSummary {
  totalScore: number;
  averageScore: number;
  totalQuestions: number;
  answeredQuestions: number;
  strengths: string[];
  weaknesses: string[];
  recommendations: string[];
  categoryScores: { category: string; score: number }[];
  overallFeedback: string;
}

export interface InterviewSession {
  id: string;
  config: InterviewConfig;
  questions: Question[];
  answers: Answer[];
  evaluations: Evaluation[];
  messages: ChatMessage[];
  currentQuestionIndex: number;
  status: 'setup' | 'in-progress' | 'evaluating' | 'completed';
  startedAt: number;
  completedAt?: number;
  summary?: SessionSummary;
}