package chat

import "encoding/json"

// Message represents a chat message.
// Role is typically: "system", "user", "assistant", "tool".
// ToolCalls is used for assistant messages that request tool/function calls.
// ReasoningContent optionally carries chain-of-thought style content for templates that support it.
// Content is the visible message content.
//
// Note: We intentionally keep this struct generic and close to common chat template expectations.
//
//nolint:revive // exported API
type Message struct {
	Role            string     `json:"role"`
	Content         string     `json:"content"`
	ReasoningContent string    `json:"reasoning_content,omitempty"`
	ToolCalls       []ToolCall `json:"tool_calls,omitempty"`
}

// ToolCall represents a single tool/function call requested by the assistant.
// Arguments may be either a raw JSON object or a string (some models emit stringified JSON).
//
//nolint:revive // exported API
type ToolCall struct {
	Name      string          `json:"name"`
	Arguments json.RawMessage `json:"arguments"`
}

// Options control chat template rendering.
//
//nolint:revive // exported API
type Options struct {
	AddGenerationPrompt bool
	EnableThinking      bool
	Tools               []any
}