@using LANCommander.SDK.Enums

<Select TItem="PlatformOption"
        TItemValue="RuntimePlatform"
        Mode="SelectMode.Multiple"
        AllowClear
        DataSource="@Options"
        Values="@SelectedFlags"
        ValuesChanged="OnValuesChanged"
        LabelName="@nameof(PlatformOption.Label)"
        ValueName="@nameof(PlatformOption.Value)"
        Placeholder="@Placeholder"
        Style="@Style" />

@code {
    [Parameter] public RuntimePlatform Value { get; set; }
    [Parameter] public EventCallback<RuntimePlatform> ValueChanged { get; set; }
    [Parameter] public string Placeholder { get; set; } = "All platforms";
    [Parameter] public string Style { get; set; } = "min-width: 180px";

    record PlatformOption(RuntimePlatform Value, string Label);

    static readonly PlatformOption[] Options =
    {
        new(RuntimePlatform.Windows, "Windows"),
        new(RuntimePlatform.Linux, "Linux"),
        new(RuntimePlatform.macOS, "macOS"),
    };

    IEnumerable<RuntimePlatform> SelectedFlags =>
        Options.Where(o => Value.HasFlag(o.Value)).Select(o => o.Value);

    async Task OnValuesChanged(IEnumerable<RuntimePlatform> values)
    {
        var combined = RuntimePlatform.None;

        if (values != null)
        {
            foreach (var value in values)
                combined |= value;
        }

        Value = combined;

        await ValueChanged.InvokeAsync(combined);
    }
}