@using Microsoft.FluentUI.AspNetCore.Components.Extensions
@typeparam TEnum where TEnum : struct, Enum
<FluentSelect
    TOption="Option<int>"
    Items="_enumOptions"
    Label="@Label"
    OptionText="@(i => i.Text)"
    OptionValue="@(i => i.Value.ToString())"
    OptionSelected="@(i => i.Selected)"
    @bind-Value="_selectedValue"
    Placeholder="@Placeholder"
    AdditionalAttributes="@AdditionalAttributes"
/>
@code {
    [Parameter] public TEnum? EnumSelectedValue { get; set; }
    [Parameter] public EventCallback<TEnum?> EnumSelectedValueChanged { get; set; }
    [Parameter] public TEnum[] ExcludeEnumItems { get; set; } = [];
    [Parameter] public string? Placeholder { get; set; }
    [Parameter] public string? Label { get; set; }
    [Parameter(CaptureUnmatchedValues = true)]
    public Dictionary<string, object> AdditionalAttributes { get; set; } = new();

    private List<Option<int>> _enumOptions = [];
    private string? _selectedValue
    {
        get { return _enumOptions.FirstOrDefault(e => e.Value.Equals(GetEnumInt(EnumSelectedValue)))?.Value.ToString(); }
        set
        {
            if (value is null || !Enum.TryParse<TEnum>(value, out var result)) return;
            EnumSelectedValue = result;
            EnumSelectedValueChanged.InvokeAsync(result);
        }
    }

    protected override void OnInitialized()
    {
        if (!typeof(TEnum).IsEnum)
        {
            throw new InvalidOperationException($"{typeof(TEnum).Name} is not an enum type");
        }
    }

    protected override void OnParametersSet()
    {
        _enumOptions = Enum.GetValues(typeof(TEnum))
            .Cast<TEnum>()
            .Where(e => !ExcludeEnumItems.Contains(e))
            .Select(e => new Option<int>
            {
                Value = GetEnumInt(e).GetValueOrDefault(),
                Text = e.GetDescription(false),
                Selected = e.Equals(EnumSelectedValue)
            })
            .ToList();
    }

    private static int? GetEnumInt(TEnum? value)
    {
        if (!typeof(TEnum).IsEnum || value is null)
            return null;
        return (int)Convert.ChangeType(value, typeof(TEnum));
    }
}