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package cn.nukkit.command.simple;

import cn.nukkit.command.Command;
import cn.nukkit.command.CommandSender;
import cn.nukkit.command.ConsoleCommandSender;
import cn.nukkit.lang.TranslationContainer;
import lombok.extern.log4j.Log4j2;

import java.lang.reflect.Method;

/**
 * @author Tee7even
 */
@Log4j2
public class SimpleCommand extends Command {
    private Object object;
    private Method method;
    private boolean forbidConsole;
    private int maxArgs;
    private int minArgs;

    public SimpleCommand(Object object, Method method, String name, String description, String usageMessage, String[] aliases) {
        super(name, description, usageMessage, aliases);
        this.object = object;
        this.method = method;
    }

    public void setForbidConsole(boolean forbidConsole) {
        this.forbidConsole = forbidConsole;
    }

    public void setMaxArgs(int maxArgs) {
        this.maxArgs = maxArgs;
    }

    public void setMinArgs(int minArgs) {
        this.minArgs = minArgs;
    }

    public void sendUsageMessage(CommandSender sender) {
        if (!this.usageMessage.equals("")) {
            sender.sendMessage(new TranslationContainer("commands.generic.usage", this.usageMessage));
        }
    }

    public void sendInGameMessage(CommandSender sender) {
        sender.sendMessage(new TranslationContainer("commands.generic.ingame"));
    }

    @Override
    public boolean execute(CommandSender sender, String commandLabel, String[] args) {
        if (this.forbidConsole && sender instanceof ConsoleCommandSender) {
            this.sendInGameMessage(sender);
            return false;
        } else if (!this.testPermission(sender)) {
            return false;
        } else if (this.maxArgs != 0 && args.length > this.maxArgs) {
            this.sendUsageMessage(sender);
            return false;
        } else if (this.minArgs != 0 && args.length < this.minArgs) {
            this.sendUsageMessage(sender);
            return false;
        }

        boolean success = false;

        try {
            success = (Boolean) this.method.invoke(this.object, sender, commandLabel, args);
        } catch (Exception exception) {
            log.error("Failed to execute {} by {}", commandLabel, sender.getName(), exception);
        }

        if (!success) {
            this.sendUsageMessage(sender);
        }

        return success;
    }
}