Better Performance (#22)

* Refactor [Terminal] [Chats] Better Performance

- [+] refactor(chat.go): optimize GetHistory method to use strings.Builder for better performance and memory allocation
- [+] fix(chat.go): append newline character after each message in GetHistory method

* Chore [Terminal] [GenAI] Colorizing single asterisks

- [+] chore(genai.go): add support for colorizing single asterisks in the output

terminal/chat.go

@@ -45,8 +45,7 @@ func (h *ChatHistory) AddMessage(user, text string) {
 //
 //	string: A newline-separated string of all messages in the chat history.
 func (h *ChatHistory) GetHistory() string {
-	// Create a new slice to hold messages without emoji prefixes
-	sanitizedMessages := make([]string, 0, len(h.Messages))
+	var builder strings.Builder
 
 	// Define the prefixes to be removed
 	prefixesToRemove := []string{YouNerd, AiNerd}
@@ -60,9 +59,12 @@ func (h *ChatHistory) GetHistory() string {
 				break // Assume only one prefix will match and then break the loop
 			}
 		}
-		sanitizedMessages = append(sanitizedMessages, sanitizedMsg)
+		// Optimized to use Builder.WriteString() for better performance and to avoid memory allocation overhead.
+		builder.WriteString(sanitizedMsg)
+		builder.WriteRune(NewLineChars) // Append a newline character after each message.
 	}
 
-	// Join the sanitized messages with a newline character
-	return strings.Join(sanitizedMessages, "\n")
+	// The builder.String() method returns the complete, concatenated chat history.
+	return builder.String()
+
 }

terminal/genai.go

@@ -79,11 +79,13 @@ func printResponse(resp *genai.GenerateContentResponse) string {
 				colorPairs := []string{
 					"**", ColorGreen,
 					"`", ColorYellow,
+					"*", ColorCyan,
 				}
 
 				keepDelimiters := map[string]bool{
 					"**": false, // Remove double asterisks from the output
 					"`":  true,  // Keep single backticks in the output
+					"*":  true,  // Keep single asterisks in the output
 				}
 
 				colorized := Colorize(content, colorPairs, keepDelimiters)