// Copyright (C) Stichting Deltares 2018. 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;
using System.Collections.Generic;
using Deltares.DamEngine.Data.General;
using Deltares.DamEngine.Data.General.Sensors;
using Deltares.DamEngine.Data.General.Sensors.Specifications;

namespace Deltares.DamEngine.Calculators.PlLinesCreator
{
    internal class SensorPlLine4Creator : SensorPlLine3Or4CreatorBase
    {
        public SensorPlLine4Creator(SensorLocation sensorLocation, IDictionary<Sensor, double> sensorValues) 
            : base(sensorLocation, sensorValues, PlLineType.Pl4)
        {
        }

        /// <summary>
        /// Gets the start z level of the PL line
        /// </summary>
        /// <remarks>
        /// The start level is based on the Pl4 configuration (locationdata or sensor) 
        /// and the position of the first sensor
        /// </remarks>
        /// <returns></returns>
        protected override double GetStartLevel()
        {
            var locationAsDataSource = new UseLocationAsDataSource();
            bool useLocationAsDataSource = locationAsDataSource.IsSatisfiedBy(SensorLocation.SourceTypePl4);
            if (useLocationAsDataSource)
            {
                if (!SensorLocation.HeadPl4.HasValue)
                    throw new PlLinesCreatorException("Pl4 head has no value defined on this location");

                return SensorLocation.HeadPl4.Value;
            }

            double level;

            try
            {
                level = WaterLevelAtRiver;
            }
            catch (Exception e)
            {
                throw new PlLinesCreatorException("There was an error trying to read the water level", e);
            }

            return level;
        }

    }
}