151 lines
5.7 KiB
Java
151 lines
5.7 KiB
Java
package org.telegram.telegrambots.extensions.bots.commandbot.commands;
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import org.telegram.telegrambots.meta.api.objects.Message;
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import org.telegram.telegrambots.meta.bots.AbsSender;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Objects;
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import java.util.function.BiConsumer;
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import java.util.function.Supplier;
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import java.util.regex.Pattern;
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/**
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* This class manages all the commands for a bot. You can register and deregister commands on demand
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*
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* @author Timo Schulz (Mit0x2)
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*/
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public final class CommandRegistry implements ICommandRegistry {
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private final Map<String, IBotCommand> commandRegistryMap = new HashMap<>();
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private final boolean allowCommandsWithUsername;
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private final Supplier<String> botUsernameSupplier;
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private BiConsumer<AbsSender, Message> defaultConsumer;
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/**
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* Creates a Command registry
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*
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* @param allowCommandsWithUsername True to allow commands with username, false otherwise
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* @param botUsername Bot username
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* @throws java.lang.NullPointerException if {@code botUsername} is {@code null}
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* @deprecated Use {@link #CommandRegistry(boolean, java.util.function.Supplier)} instead
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*/
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@Deprecated
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public CommandRegistry(boolean allowCommandsWithUsername, String botUsername) {
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Objects.requireNonNull(botUsername, "Bot username must not be null");
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this.allowCommandsWithUsername = allowCommandsWithUsername;
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this.botUsernameSupplier = () -> botUsername;
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}
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/**
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* Creates a Command registry
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* @param allowCommandsWithUsername True to allow commands with username, false otherwise
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* @param botUsernameSupplier Bot username supplier
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*/
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public CommandRegistry(boolean allowCommandsWithUsername, Supplier<String> botUsernameSupplier) {
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this.allowCommandsWithUsername = allowCommandsWithUsername;
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this.botUsernameSupplier = botUsernameSupplier;
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}
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@Override
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public void registerDefaultAction(BiConsumer<AbsSender, Message> defaultConsumer) {
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this.defaultConsumer = defaultConsumer;
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}
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@Override
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public final boolean register(IBotCommand botCommand) {
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if (commandRegistryMap.containsKey(botCommand.getCommandIdentifier())) {
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return false;
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}
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commandRegistryMap.put(botCommand.getCommandIdentifier(), botCommand);
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return true;
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}
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@Override
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public final Map<IBotCommand, Boolean> registerAll(IBotCommand... botCommands) {
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Map<IBotCommand, Boolean> resultMap = new HashMap<>(botCommands.length);
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for (IBotCommand botCommand : botCommands) {
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resultMap.put(botCommand, register(botCommand));
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}
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return resultMap;
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}
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@Override
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public final boolean deregister(IBotCommand botCommand) {
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if (commandRegistryMap.containsKey(botCommand.getCommandIdentifier())) {
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commandRegistryMap.remove(botCommand.getCommandIdentifier());
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return true;
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}
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return false;
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}
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@Override
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public final Map<IBotCommand, Boolean> deregisterAll(IBotCommand... botCommands) {
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Map<IBotCommand, Boolean> resultMap = new HashMap<>(botCommands.length);
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for (IBotCommand botCommand : botCommands) {
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resultMap.put(botCommand, deregister(botCommand));
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}
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return resultMap;
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}
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@Override
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public final Collection<IBotCommand> getRegisteredCommands() {
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return commandRegistryMap.values();
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}
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@Override
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public final IBotCommand getRegisteredCommand(String commandIdentifier) {
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return commandRegistryMap.get(commandIdentifier);
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}
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/**
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* Executes a command action if the command is registered.
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*
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* @note If the command is not registered and there is a default consumer,
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* that action will be performed
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*
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* @param absSender absSender
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* @param message input message
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* @return True if a command or default action is executed, false otherwise
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*/
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public final boolean executeCommand(AbsSender absSender, Message message) {
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if (message.hasText()) {
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String text = message.getText();
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if (text.startsWith(BotCommand.COMMAND_INIT_CHARACTER)) {
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String commandMessage = text.substring(1);
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String[] commandSplit = commandMessage.split(BotCommand.COMMAND_PARAMETER_SEPARATOR_REGEXP);
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String command = removeUsernameFromCommandIfNeeded(commandSplit[0]);
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if (commandRegistryMap.containsKey(command)) {
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String[] parameters = Arrays.copyOfRange(commandSplit, 1, commandSplit.length);
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commandRegistryMap.get(command).processMessage(absSender, message, parameters);
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return true;
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} else if (defaultConsumer != null) {
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defaultConsumer.accept(absSender, message);
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return true;
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}
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}
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}
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return false;
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}
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/**
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* if {@link #allowCommandsWithUsername} is enabled, the username of the bot is removed from
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* the command
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* @param command Command to simplify
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* @return Simplified command
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* @throws java.lang.NullPointerException if {@code allowCommandsWithUsername} is {@code true}
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* and {@code botUsernameSupplier} returns {@code null}
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*/
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private String removeUsernameFromCommandIfNeeded(String command) {
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if (allowCommandsWithUsername) {
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String botUsername = Objects.requireNonNull(botUsernameSupplier.get(), "Bot username must not be null");
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return command.replaceAll("(?i)@" + Pattern.quote(botUsername), "").trim();
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}
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return command;
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}
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}
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