Strings.java

package in.twizmwaz.cardinal.util;

import in.twizmwaz.cardinal.chat.ChatConstant;
import in.twizmwaz.cardinal.chat.ChatMessage;
import in.twizmwaz.cardinal.chat.LocalizedChatMessage;
import org.bukkit.ChatColor;

import java.text.DecimalFormat;

public class Strings {

    public static int timeStringToSeconds(String input) {
        return (int) timeStringToExactSeconds(input);
    }

    public static double timeStringToExactSeconds(String input) {
        if (input.equals("oo"))
            return (int) Double.POSITIVE_INFINITY;
        if (input.equals("-oo"))
            return (int) Double.NEGATIVE_INFINITY;
        double time = 0;
        String currentUnit = "";
        String current = "";
        for (int i = 0; i < input.length(); i++) {
            char c = input.charAt(i);
            if (Character.isDigit(c) && !currentUnit.equals("")) {
                time += convert(Numbers.parseDouble(current), currentUnit);
                current = "";
                currentUnit = "";
            }
            if (Character.isDigit(c) || c == '.') {
                current += c + "";
            } else if (c != '-') {
                currentUnit += c + "";
            }
        }
        time += convert(Numbers.parseDouble(current), currentUnit);
        if (input.startsWith("-")) time *= -1;
        return time;
    }

    private static double convert(double value, String unit) {
        switch (unit) {
            case "y":
                return value * 365 * 60 * 60 * 24;
            case "mo":
                return value * 31 * 60 * 60 * 24;
            case "d":
                return value * 60 * 60 * 24;
            case "h":
                return value * 60 * 60;
            case "m":
                return value * 60;
            case "s":
                return value;
        }
        return value;
    }

    public static String formatTime(double time) {
        boolean negative = false;
        if (time < 0) {
            negative = true;
            time *= -1;
        }
        int hours = (int) time / 3600;
        int minutes = (int) (time - (hours * 3600)) / 60;
        int seconds = (int) time - (hours * 3600) - (minutes * 60);
        String hoursString = hours + "";
        String minutesString = minutes + "";
        String secondsString = seconds + "";
        while (minutesString.length() < 2) {
            minutesString = "0" + minutesString;
        }
        while (secondsString.length() < 2) {
            secondsString = "0" + secondsString;
        }
        return (negative ? "-" : "") + (hours == 0 ? "" : hoursString + ":") + minutesString + ":" + secondsString;
    }

    public static String formatTimeWithMillis(double time) {
        boolean negative = false;
        if (time < 0) {
            negative = true;
            time *= -1;
        }
        int hours = (int) time / 3600;
        int minutes = (int) (time - (hours * 3600)) / 60;
        int seconds = (int) time - (hours * 3600) - (minutes * 60);
        double millis = time - (hours * 3600) - (minutes * 60) - seconds;
        String hoursString = hours + "";
        String minutesString = minutes + "";
        String secondsString = seconds + "";
        String millisString = new DecimalFormat(".000").format(millis);
        millisString = millisString.substring(1);
        while (minutesString.length() < 2) {
            minutesString = "0" + minutesString;
        }
        while (secondsString.length() < 2) {
            secondsString = "0" + secondsString;
        }
        return (negative ? "-" : "") + (hours == 0 ? "" : hoursString + ":") + minutesString + ":" + secondsString + "." + millisString;
    }

    public static String getTechnicalName(String string) {
        return string.trim().toUpperCase().replaceAll(" ", "_");
    }

    /**
     * @author OvercastNetwork
     * @author MonsieurApple
     * @author Anxuiz
     * @author Ramsey
     *
     * https://github.com/rmsy/Whitelister
     *
     */

    public static ChatMessage page(int index, int max) {
        return page(index, max, ChatColor.DARK_AQUA, ChatColor.AQUA);
    }

    public static ChatMessage page(int index, int max, ChatColor chatColor, ChatColor numColor) {
        return new LocalizedChatMessage(ChatConstant.UI_OF,
                chatColor + "(" + numColor + index + chatColor, "" + numColor + max + chatColor + ")");
    }

    public static String trimTo(String string, int start, int end) {
        return string.length() > start ? (string.length() > end ? string.substring(start, end) : string.substring(start)) : "";
    }

    public static String removeLastWord(String string) {
        String word = string;
        boolean reachedWord = false;
        for (int i = word.length() - 1; i >= 0; i--) {
            if (word.charAt(i) == ' ') {
                if (reachedWord) {
                    break;
                } else {
                    word = word.substring(0, i);
                }
            } else {
                if (!reachedWord) {
                    reachedWord = true;
                }
                word = word.substring(0, i);
            }
        }
        return word;
    }

    public static String getCurrentChatColor(String str, int index) {
        String color = "\u00A7r";
        for (int i = index - 1; i > 0; i--) {
            if (str.charAt(i - 1) == '\u00A7') {
                color = "\u00A7" + str.charAt(i);
                break;
            }
        }
        return color;
    }

    /**
     * Simplifies a string by making it lowercase and removing spaces.
     *
     * @return The string in lowercase without spaces
     */
    public static String simplify(String string) {
        return string.toLowerCase().replace(" ", "");
    }

    /**
     * Checks checks if string1 starts with string2, used for user inputs
     *
     * @return if string1 simplified starts win string2 simplified
     */
    public static boolean matchString(String string1, String string2) {
        return simplify(string1).startsWith(simplify(string2));
    }

}