reorganization and a little bit of code robustness, and implemented TweetRandom functionallity

optionFollowRandom.go

@@ -0,0 +1,89 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/dghubble/go-twitter/twitter"
+)
+
+func waitTime(minutes int) {
+	//wait to avoid the twitter api limitation
+	timeToSleep := time.Duration(minutes) * time.Minute
+	fmt.Println("waiting " + strconv.Itoa(minutes) + " min to avoid twitter api limitation")
+	fmt.Println(time.Now().Local())
+	time.Sleep(timeToSleep)
+}
+func getUserToFollowFromUser(client *twitter.Client, fromUser string) string {
+	friends, httpResp, err := client.Friends.List(&twitter.FriendListParams{
+		ScreenName: fromUser,
+		Count:      1,
+	})
+	if err != nil {
+		fmt.Println(err)
+	}
+	if httpResp.Status != "200 OK" {
+		c.Red(httpResp.Status)
+	}
+	//fmt.Println(friends.Users)
+	//c.Green("@" + friends.Users[0].ScreenName)
+	return friends.Users[0].ScreenName
+}
+
+func followUser(client *twitter.Client, screenName string) {
+	user, _, _ := client.Friendships.Create(&twitter.FriendshipCreateParams{
+		ScreenName: screenName,
+	})
+	fmt.Print("followed: ")
+	c.Green("@" + user.ScreenName + " - " + user.Description)
+}
+
+func followRandom(client *twitter.Client, nFollow int, screenName string) {
+	fmt.Println("Starting to follow " + strconv.Itoa(nFollow) + " users")
+	//screenName := firstScreenName
+	for i := 0; i < nFollow; i++ {
+		userToFollow := getUserToFollowFromUser(client, screenName)
+		followUser(client, userToFollow)
+		screenName = userToFollow
+		waitTime(1)
+	}
+
+}
+
+func optionFollowRandom(client *twitter.Client) {
+	c.Red("how many accounts to follow?")
+	newcommand := bufio.NewReader(os.Stdin)
+	answer, _ := newcommand.ReadString('\n')
+	answer = strings.TrimSpace(answer)
+	fmt.Print("Number of users to follow: ")
+	c.Purple(answer)
+	nFollow, err := strconv.Atoi(answer)
+	if err != nil {
+		fmt.Println("incorrect entry, need a positive number")
+	}
+
+	fmt.Print("entry @username of a user, to get a 1st user to follow, that will be a user that the 1st user is following, and the 2nd user will be a user that the 3rd user is following): @")
+	newcommand = bufio.NewReader(os.Stdin)
+	firstScreenName, _ := newcommand.ReadString('\n')
+	firstScreenName = strings.TrimSpace(firstScreenName)
+	fmt.Print("first user to follow: @")
+	c.Purple(firstScreenName)
+
+	c.Red("Are you sure? [y/n]")
+	newcommand = bufio.NewReader(os.Stdin)
+	answer, _ = newcommand.ReadString('\n')
+	answer = strings.TrimSpace(answer)
+	switch answer {
+	case "y":
+		fmt.Println("ok, you are sure")
+		followRandom(client, nFollow, firstScreenName)
+		break
+	default:
+		fmt.Println("Operation cancelled")
+		break
+	}
+}