Refactorings

services/prompts/custom.go

@@ -0,0 +1,97 @@
+package prompts
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/mudler/LocalAgent/core/agent"
+	"github.com/mudler/LocalAgent/pkg/xlog"
+	"github.com/traefik/yaegi/interp"
+	"github.com/traefik/yaegi/stdlib"
+)
+
+type DynamicPrompt struct {
+	config    map[string]string
+	goPkgPath string
+	i         *interp.Interpreter
+}
+
+func NewDynamicPrompt(config map[string]string, goPkgPath string) (*DynamicPrompt, error) {
+	a := &DynamicPrompt{
+		config:    config,
+		goPkgPath: goPkgPath,
+	}
+
+	if err := a.initializeInterpreter(); err != nil {
+		return nil, err
+	}
+
+	if err := a.callInit(); err != nil {
+		xlog.Error("Error calling custom action init", "error", err)
+	}
+
+	return a, nil
+}
+
+func (a *DynamicPrompt) callInit() error {
+	if a.i == nil {
+		return nil
+	}
+
+	v, err := a.i.Eval(fmt.Sprintf("%s.Init", a.config["name"]))
+	if err != nil {
+		return err
+	}
+
+	run := v.Interface().(func() error)
+
+	return run()
+}
+
+func (a *DynamicPrompt) initializeInterpreter() error {
+	if _, exists := a.config["code"]; exists && a.i == nil {
+		unsafe := strings.ToLower(a.config["unsafe"]) == "true"
+		i := interp.New(interp.Options{
+			GoPath:       a.goPkgPath,
+			Unrestricted: unsafe,
+		})
+		if err := i.Use(stdlib.Symbols); err != nil {
+			return err
+		}
+
+		if _, exists := a.config["name"]; !exists {
+			a.config["name"] = "custom"
+		}
+
+		_, err := i.Eval(fmt.Sprintf("package %s\n%s", a.config["name"], a.config["code"]))
+		if err != nil {
+			return err
+		}
+
+		a.i = i
+	}
+
+	return nil
+}
+
+func (a *DynamicPrompt) Render(c *agent.Agent) (string, error) {
+	v, err := a.i.Eval(fmt.Sprintf("%s.Render", a.config["name"]))
+	if err != nil {
+		return "", err
+	}
+
+	run := v.Interface().(func() (string, error))
+
+	return run()
+}
+
+func (a *DynamicPrompt) Role() string {
+	v, err := a.i.Eval(fmt.Sprintf("%s.Role", a.config["name"]))
+	if err != nil {
+		return "system"
+	}
+
+	run := v.Interface().(func() string)
+
+	return run()
+}