// Copyright (C) Stichting Deltares 2025. All rights reserved.
// 
// This file is part of the Dam Engine.
// 
// The Dam Engine 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 <http://www.gnu.org/licenses/>.
// 
// All names, logos, and references to "Deltares" are registered trademarks of
// Stichting Deltares and remain full property of Stichting Deltares at all times.
// All rights reserved.

using System.Linq;
using Deltares.DamEngine.Data.Geometry;

namespace Deltares.DamEngine.Data.GeometryExport;

/// <summary>
/// Helper class for exporting geometry
/// </summary>
public static class GeometryExporterHelper
{
    /// <summary>
    /// Create a persistable geometry object from a GeometryData object
    /// </summary>
    /// <param name="geometry"></param>
    /// <returns></returns>
    public static PersistableGeometry CreateFromGeometryData(GeometryData geometry)
    {
        var persistableGeometry = new PersistableGeometry
        {
            Surfaces = []
        };
        foreach (GeometrySurface surface in geometry.Surfaces)
        {
            persistableGeometry.Surfaces.Add(new PersistableSurface
            {
                OuterLoop = new PersistableOuterLoop
                {
                    Curves = surface.OuterLoop.CurveList.Select(curve => new PersistableCurve
                    {
                        HeadPoint = new PersistablePoint
                        {
                            X = curve.HeadPoint.X,
                            Z = curve.HeadPoint.Z
                        },
                        EndPoint = new PersistablePoint
                        {
                            X = curve.EndPoint.X,
                            Z = curve.EndPoint.Z
                        }
                    }).ToList()
                }
            });
        }

        return persistableGeometry;
    }

    /// <summary>
    /// Create a persistable geometry object from a GeometryData object
    /// </summary>
    /// <param name="geometry"></param>
    /// <returns></returns>
    public static PersistableSurfaceLine CreateFromGeometryPointString(GeometryPointString surfaceLine)
    {
        if (surfaceLine == null)
        {
            return null;
        }

        return new PersistableSurfaceLine
        {
            Points = surfaceLine.Points.Select(point => new PersistablePoint
            {
                X = point.X,
                Z = point.Z
            }).ToList()
        };
    }
}