converter

type AnthropicContentBlock struct {
	Type      string `json:"type"`
	Text      string `json:"text,omitempty"`
	ID        string `json:"id,omitempty"`
	Name      string `json:"name,omitempty"`
	Input     any    `json:"input,omitempty"`
	ToolUseID string `json:"tool_use_id,omitempty"`
	Content   any    `json:"content,omitempty"`
}

type AnthropicMessage struct {
	Role    string `json:"role"`
	Content any    `json:"content"` // string or []AnthropicContentBlock
}

type AnthropicRequest struct {
	Model       string             `json:"model"`
	Messages    []AnthropicMessage `json:"messages"`
	System      any                `json:"system,omitempty"` // string or []AnthropicSystemBlock
	MaxTokens   int                `json:"max_tokens,omitempty"`
	Temperature float64            `json:"temperature,omitempty"`
	TopP        float64            `json:"top_p,omitempty"`
	Stream      bool               `json:"stream,omitempty"`
	Metadata    map[string]any     `json:"metadata,omitempty"`
	Tools       []AnthropicTool    `json:"tools,omitempty"`
	ToolChoice  any                `json:"tool_choice,omitempty"`
}

type AnthropicResponse struct {
	ID         string                  `json:"id"`
	Type       string                  `json:"type"`
	Role       string                  `json:"role"`
	Content    []AnthropicContentBlock `json:"content"`
	Model      string                  `json:"model"`
	StopReason string                  `json:"stop_reason"`
	Usage      AnthropicUsage          `json:"usage"`
}

type AnthropicStreamState struct {
	MessageID       string
	Model           string
	BlockIndex      int
	ContentSent     bool
	AccText         string
	InputTokens     int
	OutputTokens    int
	ThinkTag        string
	TagState        ThinkTagState
	FinishReason    string
	DeltaSent       bool
	TextBlockClosed bool
	ToolBlocks      map[int]*toolBlockState
}

type AnthropicSystemBlock struct {
	Type string `json:"type"`
	Text string `json:"text"`
}

type AnthropicToChatState struct {
	ID           string
	Model        string
	Created      int64
	AccText      string
	StopReason   string
	InputTokens  int
	OutputTokens int
	Started      bool

	// Tool use tracking: Anthropic block index → tool block info
	ToolBlocks      map[int]*anthropicToolBlock
	ToolCallCounter int
}

type AnthropicToResponsesState struct {
	ResponseID    string
	ItemID        string
	Model         string
	Created       int64
	AccText       string
	CreatedSent   bool
	ItemSent      bool
	CompletedSent bool
	SeqNum        int
	InputTokens   int
	OutputTokens  int
	ThinkTag      string
	TagState      ThinkTagState

	// Tool use tracking
	CurrentBlockType string
	CurrentBlockIdx  int
	FuncArgsBuf      map[int]*strings.Builder
	FuncNames        map[int]string
	FuncCallIDs      map[int]string
	TextItemID       string
	TextDoneSent     bool
	OutputIndex      int
}

type AnthropicTool struct {
	Name        string         `json:"name"`
	Description string         `json:"description,omitempty"`
	InputSchema map[string]any `json:"input_schema,omitempty"`
}

type AnthropicUsage struct {
	InputTokens              int `json:"input_tokens"`
	OutputTokens             int `json:"output_tokens"`
	CacheCreationInputTokens int `json:"cache_creation_input_tokens,omitempty"`
	CacheReadInputTokens     int `json:"cache_read_input_tokens,omitempty"`
}

type ConvertedRequest struct {
	UpstreamBody []byte
	Model        string
	IsStreaming  bool
}

type Converter struct{}

type ResponsesStreamState struct {
	ResponseID   string
	Created      int64
	OutputIndex  int
	ContentIndex int
	ItemID       string
	CreatedSent  bool
	AccText      string
	SeqNum       int
	Model        string
	InputTokens  int
	OutputTokens int
	ThinkTag     string
	TagState     ThinkTagState

	// Tool call tracking for Chat→Responses streaming
	ToolCalls     map[int]*chatToolCallState
	TextDoneSent  bool
	TextItemID    string
	FuncOutputIdx int
}

type ResponsesToAnthropicState struct {
	MessageID       string
	Model           string
	InputTokens     int
	OutputTokens    int
	AccText         string
	ContentSent     bool
	MessageStarted  bool
	CurrentBlockIdx int
	HasToolUse      bool
}

type ResponsesToChatState struct {
	ID           string
	Model        string
	Created      int64
	AccText      string
	Started      bool
	InputTokens  int
	OutputTokens int
	HasToolCalls bool

	// Tool call tracking: item_id -> call info
	ToolCallItems map[string]*responsesToChatTC
	ToolCallSeq   int
}

type SSEWriter interface {
	WriteEvent(eventType string, data any)
}

type ThinkTagState struct {
	// contains filtered or unexported fields
}