export type UserRole = 'admin' | 'student';
export type SubscriptionStatus = 'ACTIVE' | 'OVERDUE' | 'CANCELED' | 'TRIAL';

export interface User {
  id: string;
  name: string;
  email: string;
  password?: string;
  role: UserRole;
  subscriptionStatus: SubscriptionStatus;
  asaasCustomerId: string | null;
  unlockedCourses?: string[]; // IDs of courses unlocked individually
  cpf?: string;
  birthDate?: string;
  whatsapp?: string;
  avatarUrl?: string;
  trialEndsAt?: string | null;
  totalLikes?: number;
  totalDislikes?: number;
  lessonReactions?: any[];
  progress?: any[];
  cep?: string;
  address?: string;
  number?: string;
  complement?: string;
  reference?: string;
  neighborhood?: string;
  city?: string;
  state?: string;
  createdAt: string;
}

export interface SystemSettings {
  trialDurationDays: number;
  asaasEnvironment: 'sandbox' | 'production';
  asaasApiKey: string;
  asaasWebhookUrl: string;
  asaasWebhookSecret: string;
  helpText: string;
  enableBoleto?: boolean;
  evolutionApiUrl?: string;
  evolutionApiKey?: string;
  evolutionInstance?: string;
  whatsappConnected?: boolean;
  whatsappPhoneNumber?: string;
  brandName?: string;
  brandSlogan?: string;
  cnpj?: string;
  address?: string;
  termsOfUse?: string;
  privacyPolicy?: string;
  
  featuredCourseId?: string | null;
  heroImageUrl?: string | null;
  heroTitle?: string | null;
  heroDescription?: string | null;
}

export interface Course {
  id: string;
  title: string;
  description: string;
  thumbnail: string;
  category: string;
  certificateMode?: 'PER_MODULE' | 'FULL_COURSE';
  isLocked?: boolean; // Se true, o aluno precisa comprar ou assinar para acessar
  price?: number;     // Preço para compra avulsa (vitalícia)
  createdAt: string;
  lessons?: Lesson[];
}

export interface Plan {
  id: string;
  title: string;
  description: string;
  price: number;
  cycle: 'MONTHLY' | 'YEARLY' | 'LIFETIME';
  includedCourses: string[]; // Array vazio significa 'Global/Todos os cursos'
  active: boolean;
  createdAt: string;
}

export interface Module {
  id: string;
  courseId: string;
  title: string;
  order: number;
  createdAt: string;
}

export interface Lesson {
  id: string;
  moduleId: string;
  title: string;
  videoUrl: string; // YouTube embed link or direct HTML5 mp4/hls link
  videoType: 'youtube' | 'direct';
  order: number;
  content: string; // Additional lesson resources/description
  thumbnailUrl?: string;
  createdAt: string;
  reaction?: string | null;
}

export interface Note {
  id: string;
  userId: string;
  lessonId: string;
  content: string;
  createdAt: string;
}

export interface LessonProgress {
  id: string;
  userId: string;
  lessonId: string;
  watchedPercentage: number;
  completed: boolean;
  updatedAt: string;
}

export interface WebhookLog {
  id: string;
  event: string;
  payload: string;
  receivedAt: string;
}

export interface SubscriptionPayment {
  id: string;
  userId: string;
  value: number;
  planId?: string;
  courseId?: string;
  status: 'PENDING' | 'RECEIVED' | 'CONFIRMED' | 'OVERDUE' | 'REFUNDED' | 'DELETED' | 'CANCELED';
  billingType: 'PIX' | 'CREDIT_CARD' | 'BOLETO';
  invoiceUrl: string;
  dueDate: string;
  paidAt: string | null;
  createdAt: string;
}

export interface AdminDashboardStats {
  mrr: number;
  activeSubscribers: number;
  overdueSubscribers: number;
  canceledSubscribers: number;
}

export interface Question {
  id: string;
  text: string;
  options: string[];
  correctOptionIndex: number;
}

export interface ModuleActivity {
  id: string;
  moduleId: string;
  questions: Question[];
  createdAt: string;
}

export interface Notification {
  id: string;
  userId: string;
  message: string;
  read: boolean;
  createdAt: string;
}

export interface ModuleGrade {
  id: string;
  userId: string;
  activityId: string;
  score: number;
  passed: boolean;
  createdAt: string;
}

export interface Certificate {
  id: string;
  userId: string;
  courseId: string | null;
  moduleId: string | null;
  certificateType: 'COURSE' | 'MODULE';
  unlockedAt: string;
  finalGrade: number | null;
  courseName: string;
  moduleName: string | null;
}