/** SDK 消息类型 — 与 CC CLI bridge 模块兼容 */
export interface SDKMessage {
  type: string
  content?: unknown
  [key: string]: unknown
}

export interface UserMessage extends SDKMessage {
  type: 'user'
  content: string
}

export interface AssistantMessage extends SDKMessage {
  type: 'assistant'
  content: string
}

export interface PermissionRequest extends SDKMessage {
  type: 'permission_request'
  tool_name: string
  tool_input: unknown
}

export interface PermissionResponse extends SDKMessage {
  type: 'permission_response'
  approved: boolean
  request_id: string
}

export interface ControlRequest extends SDKMessage {
  type: 'control_request'
  action: string
  [key: string]: unknown
}

export type SessionEventType =
  | 'user'
  | 'assistant'
  | 'automation_state'
  | 'permission_request'
  | 'permission_response'
  | 'control_request'
  | 'tool_use'
  | 'tool_result'
  | 'status'
  | 'error'

// --- Normalized Event Payloads (SSE contract) ---

export interface NormalizedEventPayload {
  content: string
  raw?: unknown
  isSynthetic?: boolean
  [key: string]: unknown
}

export interface UserEventPayload extends NormalizedEventPayload {
  content: string
}

export interface AssistantEventPayload extends NormalizedEventPayload {
  content: string
}

export interface ToolUseEventPayload extends NormalizedEventPayload {
  content: string
  tool_name: string
  tool_input: unknown
}

export interface ToolResultEventPayload extends NormalizedEventPayload {
  content: string
}

export interface PermissionEventPayload extends NormalizedEventPayload {
  content: string
  request_id: string
  request: {
    subtype: string
    tool_name: string
    tool_input: unknown
  }
}