@namespace DeepDrftManager.Components.Pages.Tracks
@typeparam TRow
@using DeepDrftModels.DTOs

@* Shared table shell for the single-track medium browsers (Sessions, Mixes). Renders the cover
   thumbnail, title, artist, and a shared Edit affordance that every medium gets (9.5.E). The
   medium-specific cells (hero / waveform / generate-or-upload action) are supplied per row via the
   ActionContent slot, which receives the subclass's typed row. Fully controlled by the parent:
   loading and row state are passed in. *@

@if (Loading)
{
    <MudProgressCircular Indeterminate="true" Class="mt-4" />
}
else if (Rows.Count == 0)
{
    <MudText Typo="Typo.body1" Class="mt-4">@EmptyMessage</MudText>
}
else
{
    <MudTable T="TRow" Items="Rows" Hover="true" Striped="true" Dense="true" Bordered="false" FixedHeader="true">
        <HeaderContent>
            <MudTh Style="width: 1%;">Cover</MudTh>
            <MudTh>@TitleHeader</MudTh>
            <MudTh>Artist</MudTh>
            <MudTh Style="width: 1%; white-space: nowrap;">Actions</MudTh>
        </HeaderContent>
        <RowTemplate>
            <MudTd DataLabel="Cover">
                @{ var release = ReleaseAccessor(context); }
                @if (!string.IsNullOrEmpty(release.ImagePath))
                {
                    <div class="cms-album-thumb" style="background-image: url('@ThumbUrl(release.ImagePath)');"></div>
                }
                else
                {
                    <div class="cms-album-thumb cms-album-thumb--fallback"></div>
                }
            </MudTd>
            <MudTd DataLabel="@TitleHeader">@ReleaseAccessor(context).Title</MudTd>
            <MudTd DataLabel="Artist">@ReleaseAccessor(context).Artist</MudTd>
            <MudTd DataLabel="Actions">
                <MudStack Row="true" AlignItems="AlignItems.Center" Spacing="2">
                    @ActionContent(context)
                    <MudTooltip Text="Edit release">
                        <MudIconButton Icon="@Icons.Material.Filled.Edit"
                                       Size="Size.Small"
                                       Color="Color.Primary"
                                       Href="@($"/tracks/album/{Uri.EscapeDataString(ReleaseAccessor(context).Title)}/edit")" />
                    </MudTooltip>
                </MudStack>
            </MudTd>
        </RowTemplate>
    </MudTable>
}

@code {
    [Parameter] public required IReadOnlyList<TRow> Rows { get; set; }
    [Parameter] public bool Loading { get; set; }

    /// <summary>Projects a row to its underlying release for the cover/title/artist cells.</summary>
    [Parameter] public required Func<TRow, ReleaseDto> ReleaseAccessor { get; set; }

    /// <summary>Medium-specific cell content (hero / waveform / generate action) for each row.</summary>
    [Parameter] public required RenderFragment<TRow> ActionContent { get; set; }

    /// <summary>Relative thumbnail URL builder; the base class supplies its proxy-aware helper.</summary>
    [Parameter] public required Func<string, string> ThumbUrl { get; set; }

    /// <summary>Column header / data-label for the title column (e.g. "Session", "Mix").</summary>
    [Parameter] public string TitleHeader { get; set; } = "Title";

    [Parameter] public string EmptyMessage { get; set; } = "Nothing here yet.";
}