using JdeScoping.ConfigManager.Models;

namespace JdeScoping.ConfigManager.ViewModels.Forms;

/// <summary>
/// ViewModel for editing DataSync configuration section.
/// </summary>
public class DataSyncFormViewModel : ViewModelBase
{
    private readonly DataSyncSection _model;
    private readonly Action _onChanged;

    /// <summary>
    /// Initializes a new instance of the <see cref="DataSyncFormViewModel"/> class.
    /// </summary>
    /// <param name="model">The data sync section model to edit.</param>
    /// <param name="onChanged">The callback to invoke when configuration changes.</param>
    public DataSyncFormViewModel(DataSyncSection model, Action onChanged)
    {
        _model = model ?? throw new ArgumentNullException(nameof(model));
        _onChanged = onChanged ?? throw new ArgumentNullException(nameof(onChanged));
    }

    /// <summary>
    /// Gets or sets whether data synchronization is enabled.
    /// </summary>
    public bool Enabled
    {
        get => _model.Enabled;
        set
        {
            if (_model.Enabled != value)
            {
                _model.Enabled = value;
                OnPropertyChanged();
                _onChanged();
            }
        }
    }

    /// <summary>
    /// Gets or sets the check interval in minutes.
    /// </summary>
    public int CheckIntervalMinutes
    {
        get => (int)_model.CheckInterval.TotalMinutes;
        set
        {
            var newValue = TimeSpan.FromMinutes(value);
            if (_model.CheckInterval != newValue)
            {
                _model.CheckInterval = newValue;
                OnPropertyChanged();
                _onChanged();
            }
        }
    }

    /// <summary>
    /// Gets or sets the maximum degree of parallelism.
    /// </summary>
    public int MaxDegreeOfParallelism
    {
        get => _model.MaxDegreeOfParallelism;
        set
        {
            if (_model.MaxDegreeOfParallelism != value)
            {
                _model.MaxDegreeOfParallelism = value;
                OnPropertyChanged();
                _onChanged();
            }
        }
    }

    /// <summary>
    /// Gets or sets the batch size for sync operations.
    /// </summary>
    public int BatchSize
    {
        get => _model.BatchSize;
        set
        {
            if (_model.BatchSize != value)
            {
                _model.BatchSize = value;
                OnPropertyChanged();
                _onChanged();
            }
        }
    }

    /// <summary>
    /// Gets or sets the bulk copy batch size.
    /// </summary>
    public int BulkCopyBatchSize
    {
        get => _model.BulkCopyBatchSize;
        set
        {
            if (_model.BulkCopyBatchSize != value)
            {
                _model.BulkCopyBatchSize = value;
                OnPropertyChanged();
                _onChanged();
            }
        }
    }

    /// <summary>
    /// Gets or sets the lookback multiplier.
    /// </summary>
    public double LookbackMultiplier
    {
        get => _model.LookbackMultiplier;
        set
        {
            if (Math.Abs(_model.LookbackMultiplier - value) > 0.001)
            {
                _model.LookbackMultiplier = value;
                OnPropertyChanged();
                _onChanged();
            }
        }
    }

    /// <summary>
    /// Gets or sets the purge retention days.
    /// </summary>
    public int PurgeRetentionDays
    {
        get => _model.PurgeRetentionDays;
        set
        {
            if (_model.PurgeRetentionDays != value)
            {
                _model.PurgeRetentionDays = value;
                OnPropertyChanged();
                _onChanged();
            }
        }
    }

    /// <summary>
    /// Gets or sets the sync timeout in seconds.
    /// </summary>
    public int SyncTimeoutSeconds
    {
        get => _model.SyncTimeoutSeconds;
        set
        {
            if (_model.SyncTimeoutSeconds != value)
            {
                _model.SyncTimeoutSeconds = value;
                OnPropertyChanged();
                _onChanged();
            }
        }
    }
}