using System;
using UnityEditor;
using UnityEngine;

namespace Framework.Dialogue {

  /// <summary>Helps the user place dialogue in the scene</summary>
  public static class DialoguePlacementTool {

    /// <summary>Make the selected game object(s) point at the current view</summary>
    [MenuItem("GameObject/Point at View")]
    public static void PointAtView() {
      GameObject activeGameObject = UnityEditor.Selection.activeGameObject;
      if(activeGameObject != null) {
        Camera sceneViewCamera = SceneView.lastActiveSceneView.camera;
        if(sceneViewCamera != null) {
          Vector3 targetPosition = (
            activeGameObject.transform.position - sceneViewCamera.transform.position 
          );
          targetPosition = sceneViewCamera.transform.position + (2.0f * targetPosition);
          activeGameObject.transform.LookAt(targetPosition, sceneViewCamera.transform.up);
        }
      }
    }

    /// <summary>
    ///   Make the selected game object(s) point at the current view and scale them so they
    ///   have a 1:1 pixel size seem from the view (assuming default FoV)
    /// </summary>
    [MenuItem("GameObject/Point at View (Uniform Scale)")]
    public static void PointAtViewAndScale() {
      
    }

  }

} // namespace Framework.Dialogue