package main

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"strings"

	"github.com/ChimeraCoder/anaconda"
)

func main() {

	api := anaconda.NewTwitterApiWithCredentials( ... TODO ...)

	var promotedScreenNames []string

	file, err := os.Open("promoted.csv")
	if err != nil {
		log.Fatal(err)
	}
	defer file.Close()

	scanner := bufio.NewScanner(file)
	for scanner.Scan() {
		screenName := scanner.Text()
		if len(screenName) > 0 {
			screenName = screenName[1:]
			promotedScreenNames = append(promotedScreenNames, screenName)
		}
	}

	i := 0
	n := 100

	for {
		if i*n > len(promotedScreenNames) {
			break
		}

		screenNames := promotedScreenNames[i*n : i*n+n]
		if len(screenNames) == 0 {
			break
		}

		users, err := api.GetUsersLookup(strings.Join(screenNames, ","), nil)
		if err != nil {
			log.Fatal("Failed to GetUsersLookup: ", err)
		}

		for _, user := range users {
			fmt.Println(user.IdStr)
		}

		i++
	}

	if err := scanner.Err(); err != nil {
		log.Fatal(err)
	}
}