duplicate code

[hallazzang]

thecamp/client.go

Lines 151 to 189 in e4564f3

	func (li *LettersIterator) Next() (bool, error) {
	stepSize := 30
	if li.totalCount == nil { // initial
	totalCount, letters, err := li.client.letters(li.group, nil, stepSize, li.order)
	if err != nil {
	return false, err
	}
	li.totalCount = &totalCount
	if totalCount == 0 {
	return false, nil
	}
	li.letters = letters
	li.lastLetterID = &letters[len(letters)-1].ID
	li.currentCount = 1
	return true, nil
	} else {
	li.currentCount++
	if li.currentCount > *li.totalCount { // finished
	return false, nil
	}
	li.idx++
	if li.idx > len(li.letters)-1 { // next page
	// TODO: duplicated
	totalCount, letters, err := li.client.letters(li.group, li.lastLetterID, stepSize, li.order)
	if err != nil {
	return false, err
	}
	li.totalCount = &totalCount
	li.letters = letters
	li.lastLetterID = &letters[len(letters)-1].ID
	li.idx = 0
	}
	return true, nil
	}
	}