Feat [Golang] [Package] Banner cli (#33)

* Feat [Golang] [Package] Banner cli

- [+] feat(banner.go): add PrintBinaryBanner function to print a binary representation of a banner
- [+] feat(banner.go): add PrintAnimatedBanner function to print a simple animated banner by scrolling the message

* Docs [Golang] [Package] Banner cli

- [+] chore(banner.go): update package comment and file path comment
- [+] feat(banner.go): add comments to PrintBinaryBanner function
- [+] feat(banner.go): add comments to PrintAnimatedBanner function

* Feat [Golang] [Package] [Banner Cli] Typing Animated

- [+] feat(banner.go): add PrintTypingBanner function to print a message with a typing animation effect

* Refactor [Golang] [Package] Banner Cli

- [+] refactor(banner.go): rename package from "banner" to "bannercli"

* Feat [Golang] [Module] Main Command

- [+] feat(main.go): add typing banner for "ChatGPT Session Exporter" with 100ms delay
- [+] refactor(main.go): format error message before passing it to PrintTypingBanner

* Docs [Golang] [Package] Banner cl

- [+] chore(banner.go): rename package from "banner" to "bannercli"
- [+] docs(banner.go): add example usage of PrintTypingBanner function

* Docs [Golang] [Package] Banner CLI

- [+] chore(banner.go): add copyright notice to PrintBinaryBanner, PrintAnimatedBanner, and PrintTypingBanner functions

* Docs [Golang] [Package] [BannerCLI] Fix Typo

- [+] chore(banner.go): fix package import path in file header

* Docs [Golang] [Package] [BannerCLI] Add missing comment

- [+] chore(banner.go): add missing comment for PrintTypingBanner function

bannercli/banner.go

@@ -0,0 +1,58 @@
+// Package bannercli provides functionality to print different styles of banners
+// to the terminal. These styles include binary representation and simple
+// animation effects to enhance the visual presentation of CLI applications.
+// # bannercli/banner.go
+// Example usage:
+//
+// bannercli.PrintTypingBanner("ChatGPT Session Exporter", 100*time.Millisecond)
+//
+// Copyright (c) 2023 H0llyW00dzZ
+package bannercli
+
+import (
+	"fmt"
+	"strings"
+	"time"
+)
+
+// PrintBinaryBanner prints a binary representation of a banner.
+// Each character of the message is converted into its binary form.
+// Spaces between words are widened to enhance readability.
+//
+// Copyright (c) 2023 H0llyW00dzZ
+func PrintBinaryBanner(message string) {
+	banner := strings.ReplaceAll(message, " ", "   ")
+	for _, char := range banner {
+		fmt.Printf(" %08b", char)
+	}
+	fmt.Println()
+}
+
+// PrintAnimatedBanner prints a simple animated banner by scrolling the message
+// horizontally across the terminal. The animation repeats the number of times
+// specified by the `repeat` parameter with a delay between each frame as
+// specified by the `delay` parameter.
+//
+// Copyright (c) 2023 H0llyW00dzZ
+func PrintAnimatedBanner(message string, repeat int, delay time.Duration) {
+	for r := 0; r < repeat; r++ {
+		for i := 0; i < len(message); i++ {
+			fmt.Print("\r" + strings.Repeat(" ", i) + message)
+			time.Sleep(delay)
+		}
+	}
+	fmt.Println()
+}
+
+// PrintTypingBanner prints the message with a typing animation effect.
+//
+// Each character appears sequentially with a delay, simulating a typing effect.
+//
+// Copyright (c) 2023 H0llyW00dzZ
+func PrintTypingBanner(message string, delay time.Duration) {
+	for _, char := range message {
+		fmt.Printf("%c", char)
+		time.Sleep(delay)
+	}
+	fmt.Println()
+}

main.go

@@ -13,7 +13,9 @@ import (
 	"strconv"
 	"strings"
 	"syscall"
+	"time"
 
+	"github.com/H0llyW00dzZ/ChatGPT-Next-Web-Session-Exporter/bannercli"
 	"github.com/H0llyW00dzZ/ChatGPT-Next-Web-Session-Exporter/exporter"
 	"github.com/H0llyW00dzZ/ChatGPT-Next-Web-Session-Exporter/filesystem"
 	"github.com/H0llyW00dzZ/ChatGPT-Next-Web-Session-Exporter/interactivity"
@@ -47,6 +49,7 @@ const (
 // main initializes the application, setting up context for cancellation and
 // starting the user interaction flow for data processing and exporting.
 func main() {
+	bannercli.PrintTypingBanner("ChatGPT Session Exporter", 100*time.Millisecond)
 	// Prepare a cancellable context for handling graceful shutdown.
 	// This context will be passed down to functions that support cancellation.
 	ctx, cancel := context.WithCancel(context.Background())
@@ -110,10 +113,12 @@ func main() {
 func handleInputError(err error) {
 	if err == context.Canceled || err == io.EOF {
 		// Handle a context cancellation or EOF, if applicable
-		fmt.Println("\n[GopherHelper] Exiting gracefully...\nReason: Operation canceled or end of input. Exiting program.")
+		bannercli.PrintTypingBanner("\nReason: Operation canceled or end of input. Exiting program.", 100*time.Millisecond)
 		os.Exit(0)
 	} else {
-		fmt.Printf("\n[GopherHelper] Error reading input: %s\n", err)
+		// Format the error message before passing it to PrintTypingBanner
+		errorMessage := fmt.Sprintf("\n[GopherHelper] Error reading input: %s\n", err)
+		bannercli.PrintTypingBanner(errorMessage, 100*time.Millisecond)
 		os.Exit(1)
 	}
 }