export interface Article {
  id: string;
  url: string;
  title: string;
  author: string | null;
  siteName: string | null;
  excerpt: string | null;
  content: string;
  textContent: string;
  leadImage: string | null;
  wordCount: number;
  readingProgress: number;
  readingTimeSeconds: number;
  isFavorite: boolean;
  isArchived: boolean;
  folderId: string | null;
  tags: string;
  createdAt: string;
  updatedAt: string;
  readAt: string | null;
  finishedAt: string | null;
}

export interface Folder {
  id: string;
  name: string;
  color: string;
  icon: string;
  parentId: string | null;
  sortOrder: number;
  createdAt: string;
}

export interface Highlight {
  id: string;
  articleId: string;
  text: string;
  note: string | null;
  color: string;
  startOffset: number | null;
  endOffset: number | null;
  createdAt: string;
}

export interface ReaderSettings {
  fontSize: number; // 14-32
  fontFamily: "system" | "serif" | "sans" | "mono";
  lineHeight: number; // 1.4-2.2
  maxWidth: number; // 500-900
  theme: "dark" | "light" | "sepia";
  autoTheme: boolean;
  dayTheme: "dark" | "light" | "sepia";
  nightTheme: "dark" | "light" | "sepia";
}

export interface TTSSettings {
  engine: "browser" | "kokoro";
  speed: number; // 0.5-3.0
  voice: string;
  kokoroUrl: string;
}

export interface ReadingStats {
  date: string;
  articlesRead: number;
  articlesAdded: number;
  wordsRead: number;
  timeSpentSeconds: number;
  streak: number;
}

export interface ReadingGoal {
  id: string;
  type: "daily" | "weekly" | "monthly";
  metric: "articles" | "words" | "time";
  target: number;
  isActive: boolean;
}

export const defaultReaderSettings: ReaderSettings = {
  fontSize: 18,
  fontFamily: "serif",
  lineHeight: 1.8,
  maxWidth: 700,
  theme: "dark",
  autoTheme: false,
  dayTheme: "light",
  nightTheme: "dark",
};

export const defaultTTSSettings: TTSSettings = {
  engine: "browser",
  speed: 1.0,
  voice: "",
  kokoroUrl: "http://localhost:8880",
};