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package tools
import (
"context"
"encoding/json"
)
type ToolInfo struct {
Name string
Description string
Parameters map[string]any
Required []string
}
type toolResponseType string
type (
sessionIDContextKey string
messageIDContextKey string
)
const (
ToolResponseTypeText toolResponseType = "text"
ToolResponseTypeImage toolResponseType = "image"
SessionIDContextKey sessionIDContextKey = "session_id"
MessageIDContextKey messageIDContextKey = "message_id"
)
type ToolResponse struct {
Type toolResponseType `json:"type"`
Content string `json:"content"`
Metadata string `json:"metadata,omitempty"`
IsError bool `json:"is_error"`
}
func NewTextResponse(content string) ToolResponse {
return ToolResponse{
Type: ToolResponseTypeText,
Content: content,
}
}
func WithResponseMetadata(response ToolResponse, metadata any) ToolResponse {
if metadata != nil {
metadataBytes, err := json.Marshal(metadata)
if err != nil {
return response
}
response.Metadata = string(metadataBytes)
}
return response
}
func NewTextErrorResponse(content string) ToolResponse {
return ToolResponse{
Type: ToolResponseTypeText,
Content: content,
IsError: true,
}
}
type ToolCall struct {
ID string `json:"id"`
Name string `json:"name"`
Input string `json:"input"`
}
type BaseTool interface {
Info() ToolInfo
Run(ctx context.Context, params ToolCall) (ToolResponse, error)
}
func GetContextValues(ctx context.Context) (string, string) {
sessionID := ctx.Value(SessionIDContextKey)
messageID := ctx.Value(MessageIDContextKey)
if sessionID == nil {
return "", ""
}
if messageID == nil {
return sessionID.(string), ""
}
return sessionID.(string), messageID.(string)
}
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