// Copyright (C) Stichting Deltares 2017. All rights reserved.
//
// This file is part of Ringtoets.
//
// Ringtoets is free software: you can redistribute it and/or modify
// it under the terms of the GNU 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 General Public License for more details.
//
// You should have received a copy of the GNU 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 Ringtoets.HydraRing.Calculation.Data.Output;
using Ringtoets.HydraRing.Calculation.Exceptions;
using Ringtoets.HydraRing.Calculation.Properties;

namespace Ringtoets.HydraRing.Calculation.Parsers
{
    /// <summary>
    /// Parser for overtopping results.
    /// </summary>
    public class OvertoppingCalculationWaveHeightParser : IHydraRingFileParser
    {
        private const string waveHeightColumn = "WaveHeight";
        private const string isOvertoppingDominantColumn = "IsOvertoppingDominant";

        private readonly string query =
            "SELECT " +
            "(SELECT Value FROM GoverningWind g " +
            "JOIN DesignPointResults d ON d.WindDirectionId = g.WindDirectionId AND d.OuterIterationId = g.OuterIterationId AND d.PeriodId = g.PeriodId " +
            "JOIN DesignBeta db ON db.WindDirectionId = d.WindDirectionId AND db.ClosingSituationId = d.ClosingSituationId AND db.OuterIterationId = d.OuterIterationId " +
            "AND db.PeriodId = d.PeriodId " +
            $"WHERE OutputVariableId = 3 AND db.LevelTypeId = 7 AND db.SectionId = {HydraRingDatabaseConstants.SectionIdParameterName} " +
            $"ORDER BY g.OuterIterationId DESC, d.PeriodId, db.BetaValue LIMIT 1) AS {waveHeightColumn}, " +
            "(SELECT SubMechanismId = 102 " +
            "FROM DesignBeta db " +
            "JOIN " +
            "(SELECT ClosingSituationId, d.PeriodId, d.OuterIterationId, d.WindDirectionId, d.LevelTypeId " +
            "FROM GoverningWind g " +
            "JOIN DesignBeta d ON d.WindDirectionId = g.WindDirectionId AND d.OuterIterationId = g.OuterIterationId And d.PeriodId = g.PeriodId " +
            $"WHERE LevelTypeId = 7 AND SectionId = {HydraRingDatabaseConstants.SectionIdParameterName} " +
            "AND SubmechanismId = 102 " +
            "ORDER BY d.OuterIterationId DESC, d.PeriodId, BetaValue " +
            "LIMIT 1) as s on s.WindDirectionId = db.WindDirectionId AND s.OuterIterationId = db.OuterIterationId AND s.PeriodId = db.PeriodId " +
            "AND s.ClosingSituationId = db.ClosingSituationId AND s.LevelTypeId = db.LevelTypeId " +
            "ORDER BY BetaValue " +
            $"LIMIT 1) AS {isOvertoppingDominantColumn};";

        /// <summary>
        /// Gets the output that was parsed from the output file.
        /// </summary>
        public OvertoppingCalculationWaveHeightOutput Output { get; private set; }

        public void Parse(string workingDirectory, int sectionId)
        {
            Dictionary<string, object> result = HydraRingDatabaseParseHelper.ReadSingleLine(
                workingDirectory,
                query,
                sectionId,
                Resources.OvertoppingCalculationWaveHeightParser_No_overtopping_found_in_output_file);

            ReadResult(result);
        }

        /// <summary>
        /// Reads the <paramref name="result"/>.
        /// </summary>
        /// <param name="result">The result from the database read.</param>
        /// <exception cref="HydraRingFileParserException">Thrown when the result
        /// cannot be converted to the output format.</exception>
        private void ReadResult(IDictionary<string, object> result)
        {
            try
            {
                double waveHeight = Convert.ToDouble(result[waveHeightColumn]);
                bool isOvertoppingDominant = Convert.ToBoolean(result[isOvertoppingDominantColumn]);

                Output = new OvertoppingCalculationWaveHeightOutput(waveHeight,
                                                                    isOvertoppingDominant);
            }
            catch (InvalidCastException e)
            {
                throw new HydraRingFileParserException(Resources.OvertoppingCalculationWaveHeightParser_No_overtopping_found_in_output_file, e);
            }
        }
    }
}