// Kiểu dữ liệu dùng chung giữa main thread và worker.

export interface TextContent {
  type: 'text';
  text: string;
}
export interface ThinkingContent {
  type: 'thinking';
  thinking: string;
}
export interface ToolCall {
  type: 'toolCall';
  id: string;
  name: string;
  arguments: Record<string, unknown>;
}
export type AssistantContent = TextContent | ThinkingContent | ToolCall;

export interface Usage {
  input: number;
  output: number;
  totalTokens: number;
}

export interface UserMessage {
  role: 'user';
  content: string;
  timestamp: number;
}

export type StopReason = 'stop' | 'length' | 'toolUse' | 'error' | 'aborted';

export interface AssistantMessage {
  role: 'assistant';
  content: AssistantContent[];
  stopReason?: StopReason;
  errorMessage?: string;
  usage: Usage;
  timestamp: number;
}

export interface ToolResultMessage {
  role: 'toolResult';
  toolCallId: string;
  toolName: string;
  content: TextContent[];
  details: { exitCode?: number; path?: string };
  isError: boolean;
  timestamp: number;
}

export type AgentMessage = UserMessage | AssistantMessage | ToolResultMessage;

/** Schema JSON của tham số tool (đủ dùng cho chat template của MiniCPM). */
export interface ToolSchema {
  type: 'object';
  properties: Record<string, { type: 'string' | 'number' | 'boolean' | 'object' | 'array'; description?: string }>;
  required: string[];
}

export interface ToolDef {
  name: string;
  label: string;
  description: string;
  parameters: ToolSchema;
}

/** Cặp [đường dẫn, mục] để lưu/khôi phục toàn bộ workspace (file, thư mục, symlink). */
export type SerializedEntry =
  | { type: 'file'; base64: string; mode: number }
  | { type: 'directory'; mode: number }
  | { type: 'symlink'; target: string };

export interface WorkspaceState {
  version: 1;
  files: Record<string, string>;
  entries: Array<[string, SerializedEntry]>;
  messages: AgentMessage[];
}

export interface DeviceInfo {
  vendor?: string;
  architecture?: string;
  maxStorageBufferBindingSize?: number;
  features?: string[];
}

export interface ShellResult {
  stdout: string;
  stderr: string;
  exitCode: number;
}