@page "/ffmpeg/{Id:int}"
@page "/ffmpeg/add"
@using ErsatzTV.Application.Resolutions
@using ErsatzTV.Application.Resolutions.Queries
@using ErsatzTV.Application.FFmpegProfiles
@using ErsatzTV.Application.FFmpegProfiles.Commands
@using ErsatzTV.Application.FFmpegProfiles.Queries
@using ErsatzTV.Core.FFmpeg
@using Microsoft.AspNetCore.Components
@using Microsoft.Extensions.Caching.Memory
@inject NavigationManager _navigationManager
@inject ILogger<FFmpegEditor> _logger
@inject ISnackbar _snackbar
@inject IMediator _mediator
@inject IMemoryCache _memoryCache

<MudContainer MaxWidth="MaxWidth.ExtraLarge" Class="pt-8">
    <EditForm EditContext="_editContext" OnSubmit="@HandleSubmitAsync">
        <FluentValidator/>
        <MudCard>
            <MudCardHeader>
                <CardHeaderContent>
                    <MudText Typo="Typo.h5">@(IsEdit ? "Edit FFmpeg Profile" : "Add FFmpeg Profile")</MudText>
                </CardHeaderContent>
            </MudCardHeader>
            <MudCardContent>
                <MudGrid>
                    <MudItem xs="12">
                        <MudGrid Spacing="4" Justify="Justify.Center">
                            <MudItem>
                                <MudText Typo="Typo.h6">General</MudText>
                                <MudTextField Label="Name" @bind-Value="_model.Name" For="@(() => _model.Name)"/>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudTextField Label="Thread Count" @bind-Value="@_model.ThreadCount" For="@(() => _model.ThreadCount)"/>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudSelect Disabled="@(!_model.Transcode)" Label="Preferred Resolution" @bind-Value="_model.Resolution" For="@(() => _model.Resolution)">
                                        @foreach (ResolutionViewModel resolution in _resolutions)
                                        {
                                            <MudSelectItem Value="@resolution">@resolution.Name</MudSelectItem>
                                        }
                                    </MudSelect>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudCheckBox Label="Transcode" @bind-Checked="@_model.Transcode" For="@(() => _model.Transcode)"/>
                                </MudElement>
                            </MudItem>
                            <MudItem>
                                <MudText Typo="Typo.h6">Video</MudText>
                                <MudTextField Disabled="@(!_model.Transcode)" Label="Codec" @bind-Value="_model.VideoCodec" For="@(() => _model.VideoCodec)"/>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudTextField Disabled="@(!_model.Transcode)" Label="Bitrate" @bind-Value="_model.VideoBitrate" For="@(() => _model.VideoBitrate)" Adornment="Adornment.End" AdornmentText="kBit/s"/>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudTextField Disabled="@(!_model.Transcode)" Label="Buffer Size" @bind-Value="_model.VideoBufferSize" For="@(() => _model.VideoBufferSize)" Adornment="Adornment.End" AdornmentText="kBit"/>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudSelect Disabled="@(!_model.Transcode)" Label="Hardware Acceleration" @bind-Value="_model.HardwareAcceleration" For="@(() => _model.HardwareAcceleration)">
                                        @foreach (HardwareAccelerationKind hwAccel in Enum.GetValues<HardwareAccelerationKind>())
                                        {
                                            <MudSelectItem Value="@hwAccel">@hwAccel</MudSelectItem>
                                        }
                                    </MudSelect>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudSelect Disabled="@(_model.HardwareAcceleration != HardwareAccelerationKind.Vaapi)" Label="VAAPI Driver" @bind-Value="_model.VaapiDriver" For="@(() => _model.VaapiDriver)">
                                        @foreach (VaapiDriver driver in Enum.GetValues<VaapiDriver>())
                                        {
                                            <MudSelectItem Value="@driver">@driver</MudSelectItem>
                                        }
                                    </MudSelect>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudSelect Disabled="@(_model.HardwareAcceleration != HardwareAccelerationKind.Vaapi)" Label="VAAPI Device" @bind-Value="_model.VaapiDevice" For="@(() => _model.VaapiDevice)">
                                        @foreach (string device in _vaapiDevices)
                                        {
                                            <MudSelectItem Value="@device">@device</MudSelectItem>
                                        }
                                    </MudSelect>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudCheckBox Disabled="@(!_model.Transcode)" Label="Normalize Video" @bind-Checked="@_model.NormalizeVideo" For="@(() => _model.NormalizeVideo)"/>
                                </MudElement>
                            </MudItem>
                            <MudItem>
                                <MudText Typo="Typo.h6">Audio</MudText>
                                <MudTextField Disabled="@(!_model.Transcode)" Label="Codec" @bind-Value="_model.AudioCodec" For="@(() => _model.AudioCodec)"/>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudTextField Disabled="@(!_model.Transcode)" Label="Bitrate" @bind-Value="_model.AudioBitrate" For="@(() => _model.AudioBitrate)" Adornment="Adornment.End" AdornmentText="kBit/s"/>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudTextField Disabled="@(!_model.Transcode)" Label="Buffer Size" @bind-Value="_model.AudioBufferSize" For="@(() => _model.AudioBufferSize)" Adornment="Adornment.End" AdornmentText="kBit"/>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudTextField Disabled="@(!_model.Transcode)" Label="Channels" @bind-Value="_model.AudioChannels" For="@(() => _model.AudioChannels)"/>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudTextField Disabled="@(!_model.Transcode)" Label="Sample Rate" @bind-Value="_model.AudioSampleRate" For="@(() => _model.AudioSampleRate)" Adornment="Adornment.End" AdornmentText="kHz"/>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudCheckBox Disabled="@(!_model.Transcode)" Label="Normalize Audio" @bind-Checked="@_model.NormalizeAudio" For="@(() => _model.NormalizeAudio)"/>
                                </MudElement>
                                <MudElement HtmlTag="div" Class="mt-3">
                                    <MudCheckBox Disabled="@(!_model.Transcode)" Label="Normalize Loudness" @bind-Checked="@_model.NormalizeLoudness" For="@(() => _model.NormalizeLoudness)"/>
                                </MudElement>
                            </MudItem>
                        </MudGrid>
                    </MudItem>
                </MudGrid>
            </MudCardContent>
            <MudCardActions>
                <MudButton ButtonType="ButtonType.Submit" Variant="Variant.Filled" Color="Color.Primary">
                    @(IsEdit ? "Save Changes" : "Add Profile")
                </MudButton>
            </MudCardActions>
        </MudCard>
    </EditForm>
</MudContainer>

@code {

    [Parameter]
    public int Id { get; set; }

    private FFmpegProfileEditViewModel _model = new();
    private EditContext _editContext;
    private ValidationMessageStore _messageStore;

    private List<ResolutionViewModel> _resolutions;
    private List<string> _vaapiDevices;

    protected override async Task OnParametersSetAsync()
    {
        _resolutions = await _mediator.Send(new GetAllResolutions());

        if (IsEdit)
        {
            Option<FFmpegProfileViewModel> profile = await _mediator.Send(new GetFFmpegProfileById(Id));
            profile.Match(
                ffmpegProfileViewModel => _model = new FFmpegProfileEditViewModel(ffmpegProfileViewModel),
                () => _navigationManager.NavigateTo("404"));
        }
        else
        {
            _model = new FFmpegProfileEditViewModel(await _mediator.Send(new NewFFmpegProfile()));
        }

        _editContext = new EditContext(_model);
        _messageStore = new ValidationMessageStore(_editContext);

        if (!_memoryCache.TryGetValue("ffmpeg.render_devices", out List<string> vaapiDevices))
        {
            vaapiDevices = new List<string> { "/dev/dri/renderD128" };
        }

        _vaapiDevices = vaapiDevices.OrderBy(s => s).ToList();
    }

    private bool IsEdit => Id != 0;

    private async Task HandleSubmitAsync()
    {
        _messageStore.Clear();
        if (_editContext.Validate())
        {
            Seq<BaseError> errorMessage = IsEdit ?
                (await _mediator.Send(_model.ToUpdate())).LeftToSeq() :
                (await _mediator.Send(_model.ToCreate())).LeftToSeq();

            errorMessage.HeadOrNone().Match(
                error =>
                {
                    _snackbar.Add("Unexpected error saving ffmpeg profile");
                    _logger.LogError("Unexpected error saving ffmpeg profile: {Error}", error.Value);
                },
                () => _navigationManager.NavigateTo("/ffmpeg"));
        }
    }

}