196 lines
5.8 KiB
Java
196 lines
5.8 KiB
Java
package pw.yumc.YumCore.commands;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.HashMap;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import org.bukkit.command.Command;
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import org.bukkit.command.CommandSender;
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import pw.yumc.YumCore.bukkit.P;
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import pw.yumc.YumCore.commands.annotation.Help;
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import pw.yumc.YumCore.commands.info.CommandInfo;
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import pw.yumc.YumCore.commands.interfaces.CommandHelpParse;
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/**
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* 命令帮助生成类
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*
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* @since 2016年7月23日 上午10:12:32
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* @author 喵♂呜
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*/
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public class CommandHelp {
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/**
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* 消息配置
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*/
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private static String prefix = String.format("§6[§b%s§6] ", P.instance.getName());
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private static String commandNotFound = prefix + "§c当前插件未注册默认命令以及子命令!";
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private static String pageNotFound = prefix + "§c不存在的帮助页面 §b请输入 /%s help §e1-%s";
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private static String helpTitle = String.format("§6========= %s §6帮助 §aBy §b喵♂呜 §6=========", prefix);
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private static String helpBody = "§6/%1$s §a%2$s §e%3$s §6- §b%4$s";
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private static String helpFooter = "§6查看更多的帮助页面 §b请输入 /%s help §e1-%s";
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/**
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* 帮助页面每页行数
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*/
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private static int LINES_PER_PAGE = 7;
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/**
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* 默认命令
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*/
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private CommandInfo defCmd;
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/**
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* 已排序的命令列表
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*/
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private List<CommandInfo> cmdlist;
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/**
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* 命令解析
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*/
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private CommandHelpParse helpParse;
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/**
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* 帮助页面数量
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*/
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private int HELPPAGECOUNT;
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/**
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* 帮助列表缓存
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*/
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private Map<String, String[]> cacheHelp = new HashMap<>();
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/**
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* 命令帮助
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*
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* @param list
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* 子命令列表
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*/
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public CommandHelp(Collection<? extends CommandInfo> list) {
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this(null, list);
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}
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/**
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* 命令帮助
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*
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* @param defCmd
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* 默认命令
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* @param list
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* 子命令列表
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*/
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public CommandHelp(CommandInfo defCmd, Collection<? extends CommandInfo> list) {
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this.defCmd = defCmd;
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cmdlist = new LinkedList<>(list);
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Collections.sort(cmdlist, new CommandComparator());
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HELPPAGECOUNT = (int) Math.ceil((double) cmdlist.size() / LINES_PER_PAGE);
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}
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/**
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* 格式化命令信息
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*
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* @param ci
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* 命令信息
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* @param label
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* 命令
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* @return 格式化后的字串
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*/
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public String formatCommand(CommandInfo ci, String label) {
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String aliases = Arrays.toString(ci.getCommand().aliases());
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String cmd = ci.getName() + (aliases.length() == 2 ? "" : "§7" + aliases);
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Help help = ci.getHelp();
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return String.format(helpBody, label, cmd, help.possibleArguments(), formatHelp(help.value()));
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}
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/**
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* 解析帮助
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*
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* @param value
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* 参数
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* @return 解析后的帮助
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*/
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public String formatHelp(String value) {
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if (helpParse != null) { return helpParse.parse(value); }
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return value;
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}
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/**
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* 发送帮助
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*
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* @param sender
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* 命令发送者
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* @param command
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* 命令
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* @param label
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* 标签
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* @param args
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* 参数
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*/
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public boolean send(CommandSender sender, Command command, String label, String[] args) {
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if (this.HELPPAGECOUNT == 0) {
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sender.sendMessage(commandNotFound);
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return true;
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}
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int page = 1;
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try {
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page = Integer.parseInt(args[1]);
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page = page == 0 ? 1 : page;
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} catch (Exception e) {
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// Ignore
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}
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String helpkey = label + page;
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if (!cacheHelp.containsKey(helpkey)) {
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List<String> helpList = new LinkedList<>();
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if (page > this.HELPPAGECOUNT || page < 1) {
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// 帮助页面不存在
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helpList.add(String.format(pageNotFound, label, HELPPAGECOUNT));
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} else {
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// 帮助标题
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helpList.add(helpTitle);
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if (page == 1 && defCmd != null) {
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helpList.add(formatCommand(defCmd, label));
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}
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int start = LINES_PER_PAGE * (page - 1);
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int end = start + LINES_PER_PAGE;
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for (int i = start; i < end; i++) {
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if (this.cmdlist.size() > i) {
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// 帮助列表
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helpList.add(formatCommand(cmdlist.get(i), label));
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}
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}
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}
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// 帮助结尾
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helpList.add(String.format(helpFooter, label, HELPPAGECOUNT));
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cacheHelp.put(helpkey, helpList.toArray(new String[0]));
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}
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sender.sendMessage(cacheHelp.get(helpkey));
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return true;
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}
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/**
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* 设置解析器
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*
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* @param helpParse
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* 帮助解析器
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*/
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public void setHelpParse(CommandHelpParse helpParse) {
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this.helpParse = helpParse;
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}
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/**
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* 命令排序比较器
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*
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* @since 2016年7月23日 下午4:17:18
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* @author 喵♂呜
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*/
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static class CommandComparator implements Comparator<CommandInfo> {
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@Override
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public int compare(CommandInfo o1, CommandInfo o2) {
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if (o1.getSort() > o2.getSort()) {
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return 1;
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} else if (o1.getSort() == o2.getSort()) {
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return 0;
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} else {
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return -1;
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}
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}
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}
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}
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