@using NetinaShop.AdminPanel.PWA.Extensions

@inject IRestWrapper RestWrapper
@inject IUserUtility UserUtility
@inject ISnackbar Snackbar

<MudDialog class="mx-auto">
    <DialogContent>
        <div class="flex flex-row">
            <MudStack class="grow " Spacing="0">
                <MudText Typo="Typo.h6">انتخاب یا اپلود عکس جدید</MudText>
                <MudText Typo="Typo.body2">میتوانید از بین عکس های اپلود شده یکی را انتخاب کرده یا عکس جدیدی اپلود کنید</MudText>
            </MudStack>

            <MudFileUpload class="flex-none" T="IBrowserFile" OnFilesChanged="FileChangeForUpload">
                <ButtonTemplate>

                    <MudButton HtmlTag="label"
                               class="h-full"
                               Variant="Variant.Filled"
                               Color="Color.Info"
                               StartIcon="@Icons.Material.Filled.CloudUpload"
                               for="@context.Id">
                        اپلود فایل جدید
                    </MudButton>
                </ButtonTemplate>
            </MudFileUpload>
        </div>

        <MudTextField T="string" Placeholder="جست جو بر اساس نام فایل" Adornment="Adornment.Start" Immediate="true"
                      Clearable="true"
                      ValueChanged="@SearchChanged"
                      AdornmentIcon="@Icons.Material.Filled.Search" IconSize="Size.Medium"
                      Variant="Variant.Outlined"
                      OnAdornmentClick="@SearchAsync"></MudTextField>
        <MudContainer class="max-h-[30rem]" Style="overflow-y: scroll">
            <div class="flex flex-wrap justify-center">
                @foreach (var item in _files)
                {
                    @if (item.Selected)
                    {
                        <MudImage @onclick="()=>UnSelectFile(item)" class="cursor-pointer rounded-lg mx-1 w-52 h-52 mt-2 border-solid border-4 border-blue-500" Src="@item.GetLink()" Elevation="25" />
                    }
                    else
                    {
                        <MudImage @onclick="()=>SelectFile(item)" class="cursor-pointer rounded-lg mx-1 w-52 h-52 mt-2" Src="@item.GetLink()" Elevation="25" />
                    }
                }
            </div>
        </MudContainer>
    </DialogContent>

    <DialogActions>
        <MudStack Row="true" class="w-full mx-4 mb-2">


            <BaseButtonUi class="w-64 rounded-md" IsProcessing="@_isProcessing"
                          Icon="@Icons.Material.Outlined.Check"
                          Variant="Variant.Filled" Color="Color.Success"
                          OnClickCallback="SelectFile"
                          Content="انتخابــ" />
            <MudSpacer />
            <MudButton Variant="Variant.Outlined" Size="Size.Large" Color="Color.Error" OnClick="Cancel">بستن</MudButton>
        </MudStack>
    </DialogActions>
</MudDialog>
@code
{


    private void SelectFile(StorageFileSDto item)
    {
        var pastSelect = _files.FirstOrDefault(f => f.Selected);
        if (pastSelect != null)
            pastSelect.Selected = false;
        item.Selected = true;
    }

    private void UnSelectFile(StorageFileSDto item) => item.Selected = false;

    public void SearchChanged(string search)
    {
        if (search.IsNullOrEmpty() && !_search.IsNullOrEmpty())
        {
            _files.Clear();
            _originalFiles.ForEach(f=>_files.Add(f));
        }
        _search = search;
    }
    public void SearchAsync()
    {
        try
        {
            if (_search.IsNullOrEmpty())
                throw new AppException("دسته بندی برای جست جو وارد نشده است");
            _files.Clear();
            foreach (var storageFileSDto in _originalFiles.Where(f => f.FileName.ToLower().Trim().Contains(_search.ToLower().Trim())))
                _files.Add(storageFileSDto);
        }
        catch (Exception e)
        {
            Snackbar.Add(e.Message, Severity.Error);
        }
    }

    public void SelectFile()
    {
        var selected = _files.FirstOrDefault(f => f.Selected);
        if (selected == null)
            throw new Exception("یک فایل را انتخاب کنید");
        MudDialog.Close(selected);
    }
    [CascadingParameter]
    MudDialogInstance MudDialog { get; set; }
    void Cancel() => MudDialog.Cancel();
    private readonly ObservableCollection<StorageFileSDto> _files = new ObservableCollection<StorageFileSDto>();
    private List<StorageFileSDto> _originalFiles = new List<StorageFileSDto>();
    private bool _isProcessing = false;
    private string _search = string.Empty;
    protected override async Task OnInitializedAsync()
    {
        try
        {
            _isProcessing = true;
            _files.Clear();
            var token = await UserUtility.GetBearerTokenAsync();
            var files = await RestWrapper.FileRestApi.GetFilesAsync(token);
            files.ForEach(f => _files.Add(f));
            _originalFiles = files;
        }
        catch (ApiException ex)
        {
            var exe = await ex.GetContentAsAsync<ApiResult>();
            if (exe != null)
                Snackbar.Add(exe.Message, Severity.Error);
            Snackbar.Add(ex.Content, Severity.Error);
        }
        catch (Exception e)
        {
            Snackbar.Add(e.Message, Severity.Error);
        }
        finally
        {
            _isProcessing = false;
        }

        await base.OnInitializedAsync();
    }

    private async Task FileChangeForUpload(InputFileChangeEventArgs obj)
    {
        try
        {
            _isProcessing = true;
            using var memoryStream = new MemoryStream();
            var file = obj.File;
            var stream = file.OpenReadStream();
            await stream.CopyToAsync(memoryStream);

            var fileUpload = new FileUploadRequest
                {
                    ContentType = file.ContentType,
                    FileName = file.Name,
                    FileUploadType = FileUploadType.Image,
                    StringBaseFile = Convert.ToBase64String(memoryStream.ToArray())
                };
            var token = await UserUtility.GetBearerTokenAsync();
            var rest = await RestWrapper.FileRestApi.UploadFileAsync(fileUpload, token);
            _files.Insert(0, new StorageFileSDto
                {
                    FileLocation = rest.FileLocation,
                    FileName = rest.FileName,
                    FileType = StorageFileType.Image
                });
        }
        catch (ApiException ex)
        {
            var exe = await ex.GetContentAsAsync<ApiResult>();
            if (exe != null)
                Snackbar.Add(exe.Message, Severity.Error);
            Snackbar.Add(ex.Content, Severity.Error);
        }
        catch (Exception e)
        {
            Snackbar.Add(e.Message, Severity.Error);
        }
        finally
        {
            _isProcessing = false;
        }
    }
}