package sidekick

// Role represents the role of an agent
type Role string

const (
  RoleCoordinator Role = "COORDINATOR"
  RoleSpecialist  Role = "SPECIALIST"
  RoleCollector   Role = "COLLECTOR"
)

// MessageRole represents the role of a message sender
type MessageRole string

const (
  MessageRoleSystem    MessageRole = "system"
  MessageRoleUser      MessageRole = "user"
  MessageRoleAssistant MessageRole = "assistant"
  MessageRoleTool      MessageRole = "tool"
)

// Message is a chat message in the context
type Message struct {
  Role    MessageRole `json:"role"`
  Content string      `json:"content"`
  // For native tool calls from LLM
  ToolCalls []ToolCall `json:"tool_calls,omitempty"`
  // For tool responses
  ToolCallID string `json:"tool_call_id,omitempty"`
}

// ToolCall represents a tool invocation from the LLM
type ToolCall struct {
  ID       string       `json:"id"`
  Type     string       `json:"type"` // usually "function"
  Function FunctionCall `json:"function"`
}

// FunctionCall contains the function name and arguments
type FunctionCall struct {
  Name      string `json:"name"`
  Arguments string `json:"arguments"` // JSON string
}

// ActionType represents the type of action the agent decided to take
type ActionType string

const (
  ActionTypeToolCall ActionType = "TOOL_CALL"
  ActionTypeDelegate ActionType = "DELEGATE"
  ActionTypeRespond  ActionType = "RESPOND"
)

// ActionEnvelope is the JSON format contract expected from the LLM (if not using native tool calls)
type ActionEnvelope struct {
  Action    ActionType             `json:"action"`
  Params    map[string]interface{} `json:"params"`
  Reasoning string                 `json:"reasoning,omitempty"`
}