export type Role = 'user' | 'assistant';

// 附件类型枚举
export type AttachmentType = 'image' | 'video' | 'file';

// 附件数据结构
export type MessageAttachment = {
  id: string;
  type: AttachmentType;
  url: string;
  localUri?: string;  // 本地URI，用于上传中的显示
  filename?: string;
  size?: number;
  duration?: number;  // 视频时长（秒）
  thumbnail?: string; // 视频缩略图
  width?: number;
  height?: number;
  uploadProgress?: number; // 上传进度 0-1
  uploadError?: string;    // 上传错误信息
};

// AI选择选项数据结构
export type AiChoiceOption = {
  id: string;
  label: string;
  value: any;
  recommended?: boolean;
  emoji?: string;
};

// AI响应数据结构
export type AiResponseData = {
  content: string;
  choices?: AiChoiceOption[];
  interactionType?: 'text' | 'food_confirmation' | 'selection';
  pendingData?: any;
  context?: any;
};

// 重构后的消息数据结构
export type ChatMessage = {
  id: string;
  role: Role;
  content: string;           // 文本内容
  attachments?: MessageAttachment[]; // 附件列表
  choices?: AiChoiceOption[]; // 选择选项（仅用于assistant消息）
  interactionType?: string;   // 交互类型
  pendingData?: any;         // 待确认数据
  context?: any;             // 上下文信息
};

// 卡片类型常量定义
export const CardType = {
  WEIGHT_INPUT: '__WEIGHT_INPUT_CARD__',
  DIET_INPUT: '__DIET_INPUT_CARD__',
  DIET_TEXT_INPUT: '__DIET_TEXT_INPUT__',
  DIET_PLAN: '__DIET_PLAN_CARD__',
} as const;

export type CardType = typeof CardType[keyof typeof CardType];

// 定义路由参数类型
export type CoachScreenParams = {
  name?: string;
  action?: 'diet' | 'weight' | 'mood' | 'workout';
  subAction?: 'record' | 'photo' | 'text' | 'card';
  meal?: 'breakfast' | 'lunch' | 'dinner' | 'snack';
  message?: string;
};

// 快捷操作按钮类型
export type QuickChip = {
  key: string;
  label: string;
  action: () => void;
};

// 选中的图片类型
export type SelectedImage = {
  id: string;
  localUri: string;
  width?: number;
  height?: number;
  progress: number;
  uploadedKey?: string;
  uploadedUrl?: string;
  error?: string;
};