@using PlaylistShared.Pwa.Components.Common
@using PlaylistShared.Shared.DTO
@using PlaylistShared.Shared.Shared
@inject HttpClient Http
@inject ISnackbar Snackbar
@inject IDialogService DialogService

<MudTable Items="@_tracks" Hover="true" Breakpoint="Breakpoint.Sm" Loading="_loading">
    <HeaderContent>
        <MudTh>#</MudTh>
        <MudTh>Обложка</MudTh>
        <MudTh>Название</MudTh>
        <MudTh>Исполнитель</MudTh>
        <MudTh>Длительность</MudTh>
        @if (CanRemove)
        {
            <MudTh></MudTh>
        }
    </HeaderContent>
    <RowTemplate>
        <MudTd DataLabel="#" Style="font-weight: normal;">@context.Index</MudTd>
        <MudTd DataLabel="Обложка">
            @if (!string.IsNullOrEmpty(context.CoverUri))
            {
                @if (CanPlay)
                {
                    <TrackCoverWithPlay CoverUrl="@context.CoverUri"
                                        TrackId="@context.Id"
                                        Width="50" Height="50"/>
                }
                else
                {
                    <MudImage Src="@context.CoverUri.FormatCoverUrl(50, 50)" Height="50" Width="50" Class="rounded" />
                }
            }
        </MudTd>
        <MudTd DataLabel="Название">
            <MudLink Href="@($"https://music.yandex.ru/track/{context.Id}")" Target="_blank" Underline="Underline.Hover">
                @context.Title
                <MudIcon Icon="@Icons.Material.Filled.OpenInNew" Size="Size.Small" Class="ml-1" />
            </MudLink>
        </MudTd>
        <MudTd DataLabel="Исполнитель">@string.Join(", ", context.Artists)</MudTd>
        <MudTd DataLabel="Длительность">@FormatDuration(context.DurationMs)</MudTd>
        @if (CanRemove)
        {
            <MudTd DataLabel="">
                <MudIconButton Icon="@Icons.Material.Filled.Delete" Color="Color.Error" OnClick="() => RemoveTrack(context)" />
            </MudTd>
        }
    </RowTemplate>
</MudTable>

@code {
    [Parameter] public string ShareToken { get; set; } = string.Empty;
    [Parameter] public bool CanPlay { get; set; }
    [Parameter] public bool CanRemove { get; set; }
    [Parameter] public string? CurrentPlayingTrackId { get; set; }
    [Parameter] public bool IsPlaying { get; set; }
    [Parameter] public EventCallback<string> OnPlayTrack { get; set; }

    public async Task Reload()
    {
        await LoadTracks();
    }

    private List<TrackDisplay> _tracks = new();
    private bool _loading = true;

    protected override async Task OnInitializedAsync()
    {
        await LoadTracks();
    }

    private async Task LoadTracks()
    {
        _loading = true;
        try
        {
            var response = await Http.GetFromJsonAsync<ApiResponse<YandexPlaylistData>>($"/api/sharedplaylist/{ShareToken}/tracks");
            if (response?.Success == true && response.Data != null)
            {
                _tracks = response.Data.Tracks.Select((t, idx) => new TrackDisplay
                {
                    Id = t.Id,
                    Title = t.Title,
                    Artists = t.Artists,
                    DurationMs = t.DurationMs,
                    CoverUri = t.CoverUri,
                    Index = idx + 1
                }).ToList();
            }
            else
            {
                Snackbar.Add(response?.Error?.Message ?? "Не удалось загрузить треки", Severity.Error);
            }
        }
        catch (Exception ex)
        {
            Snackbar.Add($"Ошибка загрузки треков: {ex.Message}", Severity.Error);
        }
        finally
        {
            _loading = false;
            StateHasChanged();
        }
    }

    private async Task RemoveTrack(TrackDisplay track)
    {
        var confirmed = await DialogService.ShowMessageBoxAsync(
            "Подтверждение удаления",
            $"Вы уверены, что хотите удалить трек \"{track.Title}\"?",
            yesText: "Удалить", cancelText: "Отмена");

        if (confirmed != true) return;

        try
        {
            var request = new RemoveTracksRequest { TrackIds = new List<string> { track.Id } };
            var response = await Http.PostAsJsonAsync($"/api/sharedplaylist/{ShareToken}/remove-tracks", request);
            if (response.IsSuccessStatusCode)
            {
                Snackbar.Add("Трек удалён", Severity.Success);
                await LoadTracks();
            }
            else
            {
                var error = await response.Content.ReadFromJsonAsync<ApiResponse<object>>();
                Snackbar.Add(error?.Error?.Message ?? "Ошибка удаления", Severity.Error);
            }
        }
        catch (Exception ex)
        {
            Snackbar.Add($"Ошибка: {ex.Message}", Severity.Error);
        }
    }

    private async Task PlayTrack(string trackId)
    {
        await OnPlayTrack.InvokeAsync(trackId);
    }

    private string FormatDuration(long ms)
    {
        var seconds = ms / 1000;
        var mins = seconds / 60;
        var secs = seconds % 60;
        return $"{mins}:{secs:D2}";
    }

    private class TrackDisplay : YandexTrack
    {
        public int Index { get; set; }
    }
}