package chatter

import (
	"context"
)

// Role defines who sent the message
type Role string

const (
	RoleSystem    Role = "system"
	RoleUser      Role = "user"
	RoleAssistant Role = "assistant"
)

// Message represents a single turn in a conversation
type Message struct {
	Role    Role
	Content string
}

type ChatAdapter interface {
	GenerateStructured(ctx context.Context, messages []Message, target interface{}) error
}

// PredictionConfig allows for per-request overrides
type PredictionConfig struct {
	Temperature float64
	MaxTokens   int
	Stop        []string
}