@using RackPeek.Domain.UseCases.Labels
@typeparam TResource where TResource : RackPeek.Domain.Resources.Resource
@inject IAddLabelUseCase<TResource> AddLabelUseCase
@inject IRemoveLabelUseCase<TResource> RemoveLabelUseCase

<div class="md:col-span-2"
     data-testid="@BaseTestId">

    <div class="flex items-center justify-between mb-1 group"
         data-testid="@($"{BaseTestId}-header")">

        <div class="text-zinc-400">
            Labels
            <button class="hover:text-emerald-400 ml-1"
                    title="Add Label"
                    data-testid="@($"{BaseTestId}-add")"
                    @onclick="OpenAddLabel">
                +
            </button>
        </div>
    </div>

    @if (Resource.Labels.Any())
    {
        <div class="flex flex-wrap gap-2"
             data-testid="@($"{BaseTestId}-list")">

            @foreach (var kvp in Resource.Labels.OrderBy(k => k.Key))
            {
                <div class="flex text-xs rounded overflow-hidden border border-zinc-700"
                     data-testid="@($"{BaseTestId}-label-{kvp.Key}")">

                    <button type="button"
                            class="px-2 py-0.5 bg-zinc-800 text-zinc-300 hover:bg-emerald-800 hover:text-emerald-200 transition text-left"
                            title="Edit label"
                            data-testid="@($"{BaseTestId}-label-{kvp.Key}-view")"
                            @onclick="() => OpenEditLabel(kvp.Key, kvp.Value)">
                        @kvp.Key: @kvp.Value
                    </button>

                    <button type="button"
                            class="px-1 py-0.5 bg-zinc-800 text-zinc-400 hover:bg-red-800 hover:text-red-200 transition border-l border-zinc-700"
                            title="Remove label"
                            data-testid="@($"{BaseTestId}-label-{kvp.Key}-remove")"
                            @onclick="() => RemoveLabel(kvp.Key)">
                        ✕
                    </button>

                </div>
            }
        </div>
    }

</div>

<KeyValueModal
    IsOpen="_labelModalOpen"
    IsOpenChanged="v => { _labelModalOpen = v; if (!v) { _editingKey = null; _editingValue = null; } }"
    Title="@(_editingKey is null ? "Add Label" : "Edit Label")"
    Description="@(_editingKey is null ? "Enter a key and value for the label" : "Update the key and value for the label")"
    KeyLabel="Key"
    ValueLabel="Value"
    Key="@_editingKey"
    Value="@_editingValue"
    TestIdPrefix="@BaseTestId"
    OnSubmit="HandleLabelSubmit"/>

@code {
    [Parameter] [EditorRequired] public TResource Resource { get; set; } = default!;
    [Parameter] public EventCallback OnLabelsChanged { get; set; }
    [Parameter] public string? TestIdPrefix { get; set; }

    private bool _labelModalOpen;
    private string? _editingKey;
    private string? _editingValue;

    private string BaseTestId =>
        string.IsNullOrWhiteSpace(TestIdPrefix)
            ? "resource-label-editor"
            : $"{TestIdPrefix}-resource-label-editor";

    void OpenAddLabel()
    {
        _editingKey = null;
        _editingValue = null;
        _labelModalOpen = true;
    }

    void OpenEditLabel(string key, string value)
    {
        _editingKey = key;
        _editingValue = value;
        _labelModalOpen = true;
    }

    public async Task HandleLabelSubmit((string Key, string Value) label)
    {
        var originalKey = _editingKey;
        _editingKey = null;
        _editingValue = null;

        if (originalKey is not null && originalKey != label.Key)
            await RemoveLabelUseCase.ExecuteAsync(Resource.Name, originalKey);

        await AddLabelUseCase.ExecuteAsync(Resource.Name, label.Key, label.Value);

        if (OnLabelsChanged.HasDelegate)
            await OnLabelsChanged.InvokeAsync();
    }

    async Task RemoveLabel(string key)
    {
        await RemoveLabelUseCase.ExecuteAsync(Resource.Name, key);

        if (OnLabelsChanged.HasDelegate)
            await OnLabelsChanged.InvokeAsync();
    }

}