#4

main.go

@@ -7,28 +7,55 @@ import (
 	"strings"
 )
 
+type cliCommand struct {
+	name        string
+	description string
+	callback    func() error
+}
+
+var commands map[string]cliCommand
+
 func main() {
-
-	quit := false
-
-	for !quit {
-
+	commands = map[string]cliCommand{
+		"exit": {
+			name:        "exit",
+			description: "Exit the Pokedex",
+			callback:    commandExit,
+		},
+		"help": {
+			name:        "help",
+			description: "Display a help message",
+			callback:    printHelpMessage,
+		},
+	}
+	for {
 		// read user input
 		input := bufio.NewScanner(os.Stdin)
 		fmt.Print("Pokedex > ")
 		for input.Scan() {
 			word := input.Text()
 			cleanedWord := cleanInput(word)
-			fmt.Printf("Your command was: %s\n", cleanedWord[0])
+			command := cleanedWord[0]
 
-			if cleanedWord[0] == "quit" {
-				quit = true
+			//check if command is in commands map
+			cmd, ok := commands[command]
+			if ok {
+				err := cmd.callback()
+				if err != nil {
+					fmt.Println(err)
+				}
+			} else {
+				fmt.Println("Unknown command")
+			}
+			fmt.Print("Pokedex > ")
+		}
 	}
-			break
-		}
-
 }
 
+func commandExit() error {
+	fmt.Println("Closing the Pokedex... Goodbye!")
+	os.Exit(0)
+	return nil
 }
 
 func cleanInput(text string) []string {
@@ -42,3 +69,11 @@ func cleanInput(text string) []string {
 	separated := strings.Split(text, " ")
 	return separated
 }
+
+func printHelpMessage() error {
+	fmt.Print("Welcome to the Pokedex!\nUsage:\n\n")
+	for k, v := range commands {
+		fmt.Printf("%s: %s\n", k, v.description)
+	}
+	return nil
+}