Add initial store.go for conversation/message persistence

main.go

@@ -7,21 +7,13 @@ import (
 	"github.com/spf13/cobra"
 )
 
-type Message struct {
-	MessageID string
-	ConversationID string
-	Conversation Conversation
-	OriginalContent string
-	Role string // 'user' or 'assistant'
-}
+var store, storeError = InitializeStore()
 
-type Conversation struct {
-	ID string
-	Title string
-}
-
-type Context struct {
-	CurrentConversation string
+func checkStore() {
+	if storeError != nil {
+		fmt.Fprintf(os.Stderr, "Error establishing connection to store: %v\n", storeError)
+		os.Exit(1)
+	}
 }
 
 var rootCmd = &cobra.Command{
@@ -29,6 +21,7 @@ var rootCmd = &cobra.Command{
 	Short: "Interact with Large Language Models",
 	Long:  `lm is a CLI tool to interact with OpenAI's GPT 3.5 and GPT 4.`,
 	Run: func(cmd *cobra.Command, args []string) {
+		checkStore()
 		// execute `lm ls` by default
 	},
 }
@@ -100,7 +93,6 @@ var newCmd = &cobra.Command{
 
 		fmt.Printf("> %s\n", messageContents)
 
-		// Initialize the messages array for this conversation.
 		messages := []Message{
 			{
 				OriginalContent: messageContents,