001/*
002 * Copyright (c) 2016-2017 Daniel Ennis (Aikar) - MIT License
003 *
004 *  Permission is hereby granted, free of charge, to any person obtaining
005 *  a copy of this software and associated documentation files (the
006 *  "Software"), to deal in the Software without restriction, including
007 *  without limitation the rights to use, copy, modify, merge, publish,
008 *  distribute, sublicense, and/or sell copies of the Software, and to
009 *  permit persons to whom the Software is furnished to do so, subject to
010 *  the following conditions:
011 *
012 *  The above copyright notice and this permission notice shall be
013 *  included in all copies or substantial portions of the Software.
014 *
015 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
016 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
017 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
018 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
019 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
020 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
021 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
022 */
023
024package co.aikar.commands;
025
026import java.util.AbstractMap;
027import java.util.LinkedHashMap;
028import java.util.Map;
029import java.util.regex.Pattern;
030
031/**
032 * Manages replacement template strings
033 */
034public class CommandReplacements {
035
036    private final CommandManager manager;
037
038    CommandReplacements(CommandManager manager) {
039        this.manager = manager;
040    }
041    private final Map<String, Map.Entry<Pattern, String>> replacements = new LinkedHashMap<>();
042
043    public void addReplacements(String... replacements) {
044        if (replacements.length == 0 || replacements.length % 2 != 0) {
045            throw new IllegalArgumentException("Must pass a number of arguments divisible by 2.");
046        }
047        for (int i = 0; i < replacements.length; i += 2) {
048            addReplacement(replacements[i], replacements[i+1]);
049        }
050    }
051
052    public String addReplacement(String key, String val) {
053        if (this.manager.hasRegisteredCommands()) {
054            this.manager.log(LogLevel.ERROR, "You are registering replacements after you have registered your commands!");
055            this.manager.log(LogLevel.ERROR, "This is not allowed, and this replacement (" + key + ") will not work for any previously registered command.");
056        }
057
058        key = ACFPatterns.PERCENTAGE.matcher(key.toLowerCase()).replaceAll("");
059        Pattern pattern = Pattern.compile("%" + Pattern.quote(key) + "\\b", Pattern.CASE_INSENSITIVE);
060
061        Map.Entry<Pattern, String> entry = new AbstractMap.SimpleImmutableEntry<>(pattern, val);
062        Map.Entry<Pattern, String> replaced = replacements.put(key, entry);
063
064        if (replaced != null) {
065            return replaced.getValue();
066        }
067
068        return null;
069    }
070    public String replace(String text) {
071        if (text == null) {
072            return null;
073        }
074
075        for (Map.Entry<Pattern, String> entry : replacements.values()) {
076            text = entry.getKey().matcher(text).replaceAll(entry.getValue());
077        }
078
079        return manager.getLocales().replaceI18NStrings(text);
080    }
081}