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MeasureService.cs

using Nop.Core;
using Nop.Core.Domain.Directory;
using Nop.Data;

namespace Nop.Services.Directory;

/// 
/// Measure dimension service
/// 
public partial class MeasureService : IMeasureService
{
    #region Fields

    protected readonly IRepository _measureDimensionRepository;
    protected readonly IRepository _measureWeightRepository;
    protected readonly MeasureSettings _measureSettings;

    #endregion

    #region Ctor

    public MeasureService(IRepository measureDimensionRepository,
        IRepository measureWeightRepository,
        MeasureSettings measureSettings)
    {
        _measureDimensionRepository = measureDimensionRepository;
        _measureWeightRepository = measureWeightRepository;
        _measureSettings = measureSettings;
    }

    #endregion

    #region Methods

    #region Dimensions

    /// 
    /// Deletes measure dimension
    /// 
    /// Measure dimension
    /// A task that represents the asynchronous operation
    public virtual async Task DeleteMeasureDimensionAsync(MeasureDimension measureDimension)
    {
        await _measureDimensionRepository.DeleteAsync(measureDimension);
    }

    /// 
    /// Gets a measure dimension by identifier
    /// 
    /// Measure dimension identifier
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the measure dimension
    /// 
    public virtual async Task GetMeasureDimensionByIdAsync(int measureDimensionId)
    {
        return await _measureDimensionRepository.GetByIdAsync(measureDimensionId, cache => default);
    }

    /// 
    /// Gets a measure dimension by system keyword
    /// 
    /// The system keyword
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the measure dimension
    /// 
    public virtual async Task GetMeasureDimensionBySystemKeywordAsync(string systemKeyword)
    {
        if (string.IsNullOrEmpty(systemKeyword))
            return null;

        var measureDimensions = await GetAllMeasureDimensionsAsync();
        foreach (var measureDimension in measureDimensions)
            if (measureDimension.SystemKeyword.ToLowerInvariant() == systemKeyword.ToLowerInvariant())
                return measureDimension;
        return null;
    }

    /// 
    /// Gets all measure dimensions
    /// 
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the measure dimensions
    /// 
    public virtual async Task> GetAllMeasureDimensionsAsync()
    {
        var measureDimensions = await _measureDimensionRepository.GetAllAsync(query =>
        {
            return from md in query
                orderby md.DisplayOrder, md.Id
                select md;
        }, cache => default);

        return measureDimensions;
    }

    /// 
    /// Inserts a measure dimension
    /// 
    /// Measure dimension
    /// A task that represents the asynchronous operation
    public virtual async Task InsertMeasureDimensionAsync(MeasureDimension measure)
    {
        await _measureDimensionRepository.InsertAsync(measure);
    }

    /// 
    /// Updates the measure dimension
    /// 
    /// Measure dimension
    /// A task that represents the asynchronous operation
    public virtual async Task UpdateMeasureDimensionAsync(MeasureDimension measure)
    {
        await _measureDimensionRepository.UpdateAsync(measure);
    }

    /// 
    /// Converts dimension
    /// 
    /// Value to convert
    /// Source dimension
    /// Target dimension
    /// A value indicating whether a result should be rounded
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the converted value
    /// 
    public virtual async Task ConvertDimensionAsync(decimal value,
        MeasureDimension sourceMeasureDimension, MeasureDimension targetMeasureDimension, bool round = true)
    {
        ArgumentNullException.ThrowIfNull(sourceMeasureDimension);

        ArgumentNullException.ThrowIfNull(targetMeasureDimension);

        var result = value;
        if (result != decimal.Zero && sourceMeasureDimension.Id != targetMeasureDimension.Id)
        {
            result = await ConvertToPrimaryMeasureDimensionAsync(result, sourceMeasureDimension);
            result = await ConvertFromPrimaryMeasureDimensionAsync(result, targetMeasureDimension);
        }

        if (round)
            result = Math.Round(result, 2);

        return result;
    }

    /// 
    /// Converts from primary dimension
    /// 
    /// Value to convert
    /// Target dimension
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the converted value
    /// 
    public virtual async Task ConvertFromPrimaryMeasureDimensionAsync(decimal value,
        MeasureDimension targetMeasureDimension)
    {
        ArgumentNullException.ThrowIfNull(targetMeasureDimension);

        var result = value;
        var baseDimensionIn = await GetMeasureDimensionByIdAsync(_measureSettings.BaseDimensionId);
        if (result == decimal.Zero || targetMeasureDimension.Id == baseDimensionIn.Id)
            return result;

        var exchangeRatio = targetMeasureDimension.Ratio;
        if (exchangeRatio == decimal.Zero)
            throw new NopException($"Exchange ratio not set for dimension [{targetMeasureDimension.Name}]");
        result *= exchangeRatio;

        return result;
    }

    /// 
    /// Converts to primary measure dimension
    /// 
    /// Value to convert
    /// Source dimension
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the converted value
    /// 
    public virtual async Task ConvertToPrimaryMeasureDimensionAsync(decimal value,
        MeasureDimension sourceMeasureDimension)
    {
        ArgumentNullException.ThrowIfNull(sourceMeasureDimension);

        var result = value;
        var baseDimensionIn = await GetMeasureDimensionByIdAsync(_measureSettings.BaseDimensionId);
        if (result == decimal.Zero || sourceMeasureDimension.Id == baseDimensionIn.Id)
            return result;

        var exchangeRatio = sourceMeasureDimension.Ratio;
        if (exchangeRatio == decimal.Zero)
            throw new NopException($"Exchange ratio not set for dimension [{sourceMeasureDimension.Name}]");
        result /= exchangeRatio;

        return result;
    }


    #endregion

    #region Weights

    /// 
    /// Deletes measure weight
    /// 
    /// Measure weight
    /// A task that represents the asynchronous operation
    public virtual async Task DeleteMeasureWeightAsync(MeasureWeight measureWeight)
    {
        await _measureWeightRepository.DeleteAsync(measureWeight);
    }

    /// 
    /// Gets a measure weight by identifier
    /// 
    /// Measure weight identifier
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the measure weight
    /// 
    public virtual async Task GetMeasureWeightByIdAsync(int measureWeightId)
    {
        return await _measureWeightRepository.GetByIdAsync(measureWeightId, cache => default);
    }

    /// 
    /// Gets a measure weight by system keyword
    /// 
    /// The system keyword
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the measure weight
    /// 
    public virtual async Task GetMeasureWeightBySystemKeywordAsync(string systemKeyword)
    {
        if (string.IsNullOrEmpty(systemKeyword))
            return null;

        var measureWeights = await GetAllMeasureWeightsAsync();
        foreach (var measureWeight in measureWeights)
            if (measureWeight.SystemKeyword.ToLowerInvariant() == systemKeyword.ToLowerInvariant())
                return measureWeight;
        return null;
    }

    /// 
    /// Gets all measure weights
    /// 
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the measure weights
    /// 
    public virtual async Task> GetAllMeasureWeightsAsync()
    {
        var measureWeights = await _measureWeightRepository.GetAllAsync(query =>
        {
            return from mw in query
                orderby mw.DisplayOrder, mw.Id
                select mw;
        }, cache => default);

        return measureWeights;
    }

    /// 
    /// Inserts a measure weight
    /// 
    /// Measure weight
    /// A task that represents the asynchronous operation
    public virtual async Task InsertMeasureWeightAsync(MeasureWeight measure)
    {
        await _measureWeightRepository.InsertAsync(measure);
    }

    /// 
    /// Updates the measure weight
    /// 
    /// Measure weight
    /// A task that represents the asynchronous operation
    public virtual async Task UpdateMeasureWeightAsync(MeasureWeight measure)
    {
        await _measureWeightRepository.UpdateAsync(measure);
    }

    /// 
    /// Converts weight
    /// 
    /// Value to convert
    /// Source weight
    /// Target weight
    /// A value indicating whether a result should be rounded
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the converted value
    /// 
    public virtual async Task ConvertWeightAsync(decimal value,
        MeasureWeight sourceMeasureWeight, MeasureWeight targetMeasureWeight, bool round = true)
    {
        ArgumentNullException.ThrowIfNull(sourceMeasureWeight);

        ArgumentNullException.ThrowIfNull(targetMeasureWeight);

        var result = value;
        if (result != decimal.Zero && sourceMeasureWeight.Id != targetMeasureWeight.Id)
        {
            result = await ConvertToPrimaryMeasureWeightAsync(result, sourceMeasureWeight);
            result = await ConvertFromPrimaryMeasureWeightAsync(result, targetMeasureWeight);
        }

        if (round)
            result = Math.Round(result, 2);

        return result;
    }

    /// 
    /// Converts from primary weight
    /// 
    /// Value to convert
    /// Target weight
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the converted value
    /// 
    public virtual async Task ConvertFromPrimaryMeasureWeightAsync(decimal value,
        MeasureWeight targetMeasureWeight)
    {
        ArgumentNullException.ThrowIfNull(targetMeasureWeight);

        var result = value;
        var baseWeightIn = await GetMeasureWeightByIdAsync(_measureSettings.BaseWeightId);
        if (result == decimal.Zero || targetMeasureWeight.Id == baseWeightIn.Id)
            return result;

        var exchangeRatio = targetMeasureWeight.Ratio;
        if (exchangeRatio == decimal.Zero)
            throw new NopException($"Exchange ratio not set for weight [{targetMeasureWeight.Name}]");
        result *= exchangeRatio;

        return result;
    }

    /// 
    /// Converts to primary measure weight
    /// 
    /// Value to convert
    /// Source weight
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the converted value
    /// 
    public virtual async Task ConvertToPrimaryMeasureWeightAsync(decimal value, MeasureWeight sourceMeasureWeight)
    {
        ArgumentNullException.ThrowIfNull(sourceMeasureWeight);

        var result = value;
        var baseWeightIn = await GetMeasureWeightByIdAsync(_measureSettings.BaseWeightId);
        if (result == decimal.Zero || sourceMeasureWeight.Id == baseWeightIn.Id)
            return result;

        var exchangeRatio = sourceMeasureWeight.Ratio;
        if (exchangeRatio == decimal.Zero)
            throw new NopException($"Exchange ratio not set for weight [{sourceMeasureWeight.Name}]");
        result /= exchangeRatio;

        return result;
    }

    #endregion

    #endregion
}