package com.rb.tests.utils;

import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Random;

import com.rb.test.selenium.webdriver.Converter;
import com.rb.test.selenium.webdriver.Converter.Option;

public class RandomGenerator {

    private static Random random = new Random();

    public enum InputType {
        CAPITAL_LETTERS, SMALL_LETTERS, NUMBERS, LONG_DESCRIPTIONS, SHORT_DESCRIPTIONS, IDENTIFIERS, NAME, STRAPLINE, CODE_FISCALE
    }

    public static int randomInt(int min, int max) {
        int randomInt = 0;
        randomInt = min + (int) Math.round(Math.random() * (max - min));
        return randomInt;
    }

    public static String randomName(int length) {
        return RandomGenerator.randomInput(RandomGenerator.InputType.CAPITAL_LETTERS, 1) + RandomGenerator
                .randomInput(RandomGenerator.InputType.SMALL_LETTERS, RandomGenerator.randomInt(1, length - 1));
    }

    public static String randomEmail() {
        return "success+" + RandomGenerator.randomInput(RandomGenerator.InputType.SMALL_LETTERS, 5)
                + RandomGenerator.randomInput(RandomGenerator.InputType.NUMBERS, 10) + "@simulator.amazonses.com";
    }

    public static String randomPhone(String areaCode, int length) {
        return areaCode + RandomGenerator.randomInput(InputType.NUMBERS, length);
    }

    public static boolean randomBoolean() {
        return random.nextBoolean();
    }

    public static String randomInput(InputType inputType, int lenght) {
        String result = "";
        char[] chars = "".toCharArray();
        if (inputType.equals(InputType.CAPITAL_LETTERS)) {
            chars = "QWERTYUIOPASDFGHJKLZXCVBNM".toCharArray();
        } else if (inputType.equals(InputType.SMALL_LETTERS)) {
            chars = "qwertyuiopasdfghjklzxcvbnm".toCharArray();
        } else if (inputType.equals(InputType.NUMBERS)) {
            chars = "123456789".toCharArray();
        } else if (inputType.equals(InputType.LONG_DESCRIPTIONS)) {
            chars = "123456789QWERTYUIOPLKJHGFDSAZXCVBNMqwertyuioplkjhgfdsazxcvbnm ,.?!%\n".toCharArray();
        } else if (inputType.equals(InputType.SHORT_DESCRIPTIONS)) {
            chars = "123456789QWERTYUIOPLKJHGFDSAZXCVBNMqwertyuioplkjhgfdsazxcvbnm ,.?!%".toCharArray();
        } else if (inputType.equals(InputType.IDENTIFIERS)) {
            chars = "123456789QWERTYUIOPLKJHGFDSAZXCVBNM ,".toCharArray();
        } else if (inputType.equals(InputType.NAME)) {
            chars = "123456789QWERTYUIOPLKJHGFDSAZXCVBNM ".toCharArray();
        } else if (inputType.equals(InputType.STRAPLINE)) {
            chars = "1234567890QWERTYUIOPLKJHGFDSAZXCVBNMqwertyuiopasdfghjklzxcvbnm ".toCharArray();
        } else if (inputType.equals(InputType.CODE_FISCALE)) {
            chars = "1234567890QWERTYUIOPLKJHGFDSAZXCVBNM".toCharArray();
        } else {
            chars = "QWERTYUIOPASDFGHJKLZXCVBNM".toCharArray();
        }
        StringBuilder sb = new StringBuilder();
        Random random = new Random();
        for (int i = 0; i < lenght; i++) {
            char c = chars[random.nextInt(chars.length)];
            sb.append(c);
        }
        result = sb.toString();
        result = Converter.getText(result, Option.NO_WHITE_SPACE_ON_BEGIN_AND_END);
        return result;
    }

    public static long nextLong(long n) {
        if (n <= 0) {
            throw new IllegalArgumentException("Bound must be positive");
        }
        long bits, val;
        do {
            long randomLong = random.nextLong();
            bits = (randomLong << 1) >>> 1;
            val = bits % n;
        } while (bits - val + (n - 1) < 0L);
        return val;
    }

    public static int nextInt(int value) {
        return random.nextInt(value);
    }

    public static long nextLong() {
        return random.nextLong();
    }

    public static double nextDouble() {
        return random.nextDouble();
    }

    public static String randomBirthDate() {
        int year = randomInt(1940, 2000);
        int month = randomInt(1, 12);
        GregorianCalendar gc = new GregorianCalendar(year, month - 1, 1);
        int day = randomInt(1, gc.getActualMaximum(Calendar.DAY_OF_MONTH));
        return year + "-" + month + "-" + day;
    }

    public static int randomFutureYear(int maxFutureYear) {
        GregorianCalendar gc = new GregorianCalendar();
        if (maxFutureYear > gc.get(GregorianCalendar.YEAR)) {
            return randomInt(gc.get(GregorianCalendar.YEAR) + 1, maxFutureYear);
        } else {
            return gc.get(GregorianCalendar.YEAR) + 1;
        }
    }

    public static int randomMonth() {
        return randomInt(1, 12);
    }

}