Move custom action into actions

action/custom.go

@@ -0,0 +1,125 @@
+package action
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/mudler/local-agent-framework/xlog"
+	"github.com/sashabaranov/go-openai/jsonschema"
+	"github.com/traefik/yaegi/interp"
+	"github.com/traefik/yaegi/stdlib"
+)
+
+func NewCustom(config map[string]string, goPkgPath string) (*CustomAction, error) {
+	a := &CustomAction{
+		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
+}
+
+type CustomAction struct {
+	config    map[string]string
+	goPkgPath string
+	i         *interp.Interpreter
+}
+
+func (a *CustomAction) 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 *CustomAction) 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 *CustomAction) Run(ctx context.Context, params ActionParams) (string, error) {
+	v, err := a.i.Eval(fmt.Sprintf("%s.Run", a.config["name"]))
+	if err != nil {
+		return "", err
+	}
+
+	run := v.Interface().(func(map[string]interface{}) (string, error))
+
+	return run(params)
+}
+
+func (a *CustomAction) Definition() ActionDefinition {
+
+	v, err := a.i.Eval(fmt.Sprintf("%s.Definition", a.config["name"]))
+	if err != nil {
+		xlog.Error("Error getting custom action definition", "error", err)
+		return ActionDefinition{}
+	}
+
+	properties := v.Interface().(func() map[string][]string)
+
+	v, err = a.i.Eval(fmt.Sprintf("%s.RequiredFields", a.config["name"]))
+	if err != nil {
+		xlog.Error("Error getting custom action definition", "error", err)
+		return ActionDefinition{}
+	}
+
+	requiredFields := v.Interface().(func() []string)
+
+	prop := map[string]jsonschema.Definition{}
+
+	for k, v := range properties() {
+		if len(v) != 2 {
+			xlog.Error("Invalid property definition", "property", k)
+			continue
+		}
+		prop[k] = jsonschema.Definition{
+			Type:        jsonschema.DataType(v[0]),
+			Description: v[1],
+		}
+	}
+	return ActionDefinition{
+		Name:        ActionDefinitionName(a.config["name"]),
+		Description: a.config["description"],
+		Properties:  prop,
+		Required:    requiredFields(),
+	}
+}