Feature: add support for llama, refactor yaml service interface (#115)

* refactor and add llama LMM support

* update readme

* improve code coverage

parser/configurations_parser.go

@@ -3,6 +3,7 @@ package parser
 
 import (
 	"fmt"
+	"github.com/mariocandela/beelzebub/v3/plugins"
 	"os"
 	"path/filepath"
 	"strings"
@@ -50,6 +51,19 @@ type Prometheus struct {
 
 type Plugin struct {
 	OpenAISecretKey string `yaml:"openAISecretKey"`
+	Host            string `yaml:"host"`
+	LLMModel        string `yaml:"llmModel"`
+}
+
+func FromString(llmModel string) (plugins.LLMModel, error) {
+	switch llmModel {
+	case "llama3":
+		return plugins.LLAMA3, nil
+	case "gpt4-o":
+		return plugins.GPT4O, nil
+	default:
+		return -1, fmt.Errorf("model %s not found", llmModel)
+	}
 }
 
 // BeelzebubServiceConfiguration is the struct that contains the configurations of the honeypot service