/*
 * Copyright 2013 MovingBlocks
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.terasology.logic.console;

import org.terasology.entitySystem.entity.EntityRef;
import org.terasology.entitySystem.event.EventPriority;
import org.terasology.entitySystem.event.ReceiveEvent;
import org.terasology.entitySystem.systems.BaseComponentSystem;
import org.terasology.entitySystem.systems.RegisterMode;
import org.terasology.entitySystem.systems.RegisterSystem;
import org.terasology.input.ButtonState;
import org.terasology.input.binds.general.ConsoleButton;
import org.terasology.logic.console.commandSystem.ConsoleCommand;
import org.terasology.network.ClientComponent;
import org.terasology.network.NetworkSystem;
import org.terasology.registry.In;
import org.terasology.rendering.nui.NUIManager;

import java.util.List;

/**
 * @author Immortius
 */
@RegisterSystem
public class ConsoleSystem extends BaseComponentSystem {
    @In
    private Console console;

    @In
    private NetworkSystem networkSystem;

    @In
    private NUIManager nuiManager;

    @ReceiveEvent(components = ClientComponent.class, priority = EventPriority.PRIORITY_CRITICAL)
    public void onToggleConsole(ConsoleButton event, EntityRef entity) {
        if (event.getState() == ButtonState.DOWN) {
            nuiManager.toggleScreen("engine:console");
            event.consume();
        }
    }

    @ReceiveEvent(components = ClientComponent.class)
    public void onMessage(MessageEvent event, EntityRef entity) {
        ClientComponent client = entity.getComponent(ClientComponent.class);
        if (client.local) {
            console.addMessage(event.getFormattedMessage());
        }
    }

    @ReceiveEvent(components = ClientComponent.class, netFilter = RegisterMode.AUTHORITY)
    public void onCommand(CommandEvent event, EntityRef entity) {
        List<String> params = event.getParameters();
        ConsoleCommand cmd = console.getCommand(event.getCommandName());

        if (cmd.getRequiredParameterCount() == params.size() && cmd.isRunOnServer()) {
            console.execute(event.getCommandName(), event.getParameters(), entity);
        }
    }
}
