/*
 * SoulFire
 * Copyright (C) 2026  AlexProgrammerDE
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
package com.soulfiremc.server.script.nodes.math;

import com.soulfiremc.server.script.*;
import net.minecraft.world.phys.Vec3;
import reactor.core.publisher.Mono;

import java.util.Map;

/// Math node that calculates the distance between two 3D points.
/// Inputs: a (Vec3), b (Vec3)
/// Output: distance
public final class DistanceNode extends AbstractScriptNode {
  public static final NodeMetadata METADATA = NodeMetadata.builder()
    .type("math.distance")
    .displayName("Distance")
    .category(CategoryRegistry.MATH)
    .addInputs(
      PortDefinition.input("a", "Point A", PortType.VECTOR3, "First 3D point"),
      PortDefinition.input("b", "Point B", PortType.VECTOR3, "Second 3D point")
    )
    .addOutputs(
      PortDefinition.output("distance", "Distance", PortType.NUMBER, "Distance between points")
    )
    .description("Calculates the distance between two 3D points")
    .icon("ruler")
    .color("#2196F3")
    .addKeywords("distance", "length", "measure", "vector")
    .build();

  @Override
  public Mono<Map<String, NodeValue>> executeReactive(NodeRuntime runtime, Map<String, NodeValue> inputs) {
    var a = getInput(inputs, "a", Vec3.ZERO);
    var b = getInput(inputs, "b", Vec3.ZERO);
    var distance = a.distanceTo(b);
    return completedMono(result("distance", distance));
  }
}
