/**
 * Core message type definitions for the chat application
 */

/**
 * Base response item type
 */
export type ResponseItemType = 'message' | 'tool_call' | 'card'

/**
 * Tool call data structure
 */
export interface ToolCall {
  id: string
  name: string
  arguments: Record<string, any>
  status: 'pending' | 'executing' | 'completed' | 'error'
  result?: any
  error?: string
}

/**
 * Card data structure for rich content
 */
export interface Card {
  id: string
  type: string
  title?: string
  content: Record<string, any>
  actions?: CardAction[]
}

export interface CardAction {
  id: string
  label: string
  type: 'button' | 'link'
  action: string
  data?: Record<string, any>
}

/**
 * Base response item
 */
export interface ResponseItem {
  id: string | number
  type: ResponseItemType
  timestamp?: string
}

/**
 * Message response item
 */
export interface MessageItem extends ResponseItem {
  type: 'message'
  content: string
  role: 'user' | 'assistant'
}

/**
 * Tool call response item
 */
export interface ToolCallItem extends ResponseItem {
  type: 'tool_call'
  toolCall: ToolCall
}

/**
 * Card response item
 */
export interface CardItem extends ResponseItem {
  type: 'card'
  card: Card
}

/**
 * Union type for all response items
 */
export type ChatResponseItem = MessageItem | ToolCallItem | CardItem

/**
 * Represents a single chat message
 */
export interface Message {
  id: string | number
  content: string
  role: 'user' | 'assistant'
  timestamp?: string
}

/**
 * Represents a conversation consisting of multiple response items
 */
export interface Conversation {
  id: string
  title: string
  items: ChatResponseItem[]
}

/**
 * Response from the chat API
 */
export interface ChatResponse {
  items: ChatResponseItem[]
  conversationId: string
}

/**
 * Simple message structure to handle chat history
 */
export interface ChatMessage {
  role: string
  content: string
}