import java.util.ArrayList;


public class TextOutput {
    private boolean formatRaw;
    private int columnWidth = 10;

    /**
     * Method which checks in which way the paragraphs should be displayed. And then
     *
     * @param text the ArrayList which is then formatted into the desired output.
     */
    public void print(ArrayList<String> text) {
        if (formatRaw) {
            printFormated(text);
        } else {
            toFormat(text);
        }
    }

    /**
     * Method to print out the paragraphs in numerical order and with the whole paragraph as its length.
     *
     * @param text the ArrayList which is used for the output
     */
    private void printFormated(ArrayList<String> text) {
        for (int counter = 0; counter < text.size(); counter++) {
            System.out.println("<" + (counter + 1) + ">: <" + text.get(counter) + ">");
        }

    }

    /**
     * Method to print out the paragraphs with the length taken from columnWidth and adding leftover words to the next
     * paragraph.
     *
     * @param text the ArrayList which is used for the output.
     */
    private void toFormatold(ArrayList<String> text) {
        for (String paragraph : text) {
            String[] words = paragraph.split(" ");
            int currentLength = 0;
            for (String word : words) {
                if (word.length() > columnWidth) {
                    String[] letters = word.split("");
                    int letterLenght = letters.length;
                    int lettersPrinted = 0;
                    do {
                        currentLength = 0;
                        for (int i = 0; i < columnWidth; i++) {
                            if (letterLenght > 0) {
                                System.out.print(letters[lettersPrinted]);
                                letterLenght--;
                                lettersPrinted++;
                                currentLength++;
                            }
                        }
                        if (!(letterLenght == 0)) {
                            System.out.println();
                        }
                    }
                    while (letterLenght >= columnWidth);

                } else {
                    if (word.length() >= columnWidth - currentLength) {
                        currentLength = 0;
                        System.out.println();
                    }
                    System.out.print(word + " ");
                    currentLength += word.length() + 1;
                }
            }
            System.out.println(); //added
        }
    }
    private void toFormat(ArrayList<String> text) {
        int currentLength = 0;
        for (String paragraph : text) {
            String[] words = paragraph.split(" ");
            int lastwordNumber = words.length;
            int currentWordNumber = 0;
            for(String word : words) {
                currentWordNumber++;
                if (word.length()<= columnWidth - currentLength) {
                    System.out.print(word);
                    if (!(lastwordNumber == currentWordNumber)) {
                        System.out.print(" ");
                        currentLength = currentLength + word.length() + 1;
                    }
                    else {
                        System.out.println();
                        }
                }
                else {
                    System.out.println();
                    System.out.print(word);
                    if(!(currentWordNumber == lastwordNumber)) {
                        System.out.print(" ");
                        currentLength = word.length();
                    }
                }
            }
        }
    }

    /**
     * Method which sets the Variable formatRaw to true.
     */
    public void formatRaw() {
        formatRaw = true;
    }

    /**
     * Method to set the formatRaw to false and also set the length of the desired paragraph length in order to limit
     * the paragraph length when printing the text.
     *
     * @param length the maximum length of each paragraph that is allowed to be displayed when printing the text.
     */
    public void formatFix(int length) {
        formatRaw = false;
        columnWidth = length;
    }

    /**
     * Method to give out the Error "Invalid String".
     */
    public void errorInvalidString() {
        System.err.println("Invalid String");
    }

    /**
     * Method to give out the Error "Invalid Command".
     */
    public void errorInvalidCommand() {
        System.err.println("Invalid Command");
    }
}