SeemGen/Components/Partials/MenuItemContentEditor.razor

@using BLAIzor.Models
@using BLAIzor.Services
@using Microsoft.AspNetCore.Components.Authorization
@inject ContentEditorService ContentEditorService
@inject ContentEditorAIService ContentEditorAIService
@inject AuthenticationStateProvider AuthenticationStateProvider
@inject CustomAuthenticationStateProvider CustomAuthProvider

<div class="menu-item-editor">

    @{
        if (!string.IsNullOrEmpty(WordFile))
        {
            <button class="btn btn-primary mb-2" @onclick="GenerateFromText" disabled="@IsLoading">Generate from text</button>

        }

    }
    <button class="btn btn-primary mb-2" @onclick="GenerateContent" disabled="@IsLoading">Generate by AI</button>
    @* <textarea class="form-control border-0 text-white" @bind="GeneratedContent" rows="5"></textarea> *@
    <div class="row">

        <RadzenTextArea @bind-Value=@MenuItem.ContentDescription></RadzenTextArea>
    </div>
    <div class="row">
        <RadzenHtmlEditor @bind-Value=@GeneratedContent style="height: 450px; color:#000; background-color: rgba(255,255,255,0.4)" Input=@OnInput Change=@OnChange Paste=@OnPaste UploadComplete=@OnUploadComplete Execute=@OnExecute UploadUrl="upload/image">
            <RadzenHtmlEditorUndo />
            <RadzenHtmlEditorRedo />
            <RadzenHtmlEditorSource />
        </RadzenHtmlEditor>
    </div>
    <InputFile class="btn btn-default" type="file" multiple OnChange=HandleFileUpload accept=".mp3,.mp4,.jpg,.png" />

    @* <EventConsole @ref=@console /> *@
    @if (IsLoading)
    {
        <p>Loading content...</p>
    }
</div>

@code {
    [Parameter] public string Subject { get; set; } = string.Empty;
    [Parameter] public string WordFile { get; set; } = string.Empty;
    [Parameter] public string SessionId { get; set; } = string.Empty;
    [Parameter] public MenuItemModel MenuItem { get; set; } = new("");
    [Parameter] public EventCallback<MenuItemModel> OnContentUpdated { get; set; }

    private bool IsLoading = false;
    private string GeneratedContent = string.Empty;
    // private string Description = string.Empty;
    private string? userId;
    private string? userName;
    private AuthenticationState? authState;

    //EventConsole console;

    protected override async Task OnParametersSetAsync()
    {
        GeneratedContent = MenuItem.Content;
        // Description = MenuItem.ContentDescription;
        authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
        if (authState.User.Identity?.IsAuthenticated == true)
        {
            userId = CustomAuthProvider.GetUserId();
            userName = CustomAuthProvider.GetUserName();
        }
    }

    private async Task GenerateContent()
    {
        IsLoading = true;
        try
        {
            Console.Write($"Subject: {Subject}");
            var prompt = $"Generate website content for a page titled '{MenuItem.MenuItem.Name}' of a '{Subject}' website. Please do not attach any explanation.";
            GeneratedContent = await ContentEditorAIService.GetGeneratedContentAsync(SessionId, prompt);
            MenuItem.Content = GeneratedContent;
            await OnContentUpdated.InvokeAsync(MenuItem);
        }
        catch
        {
            GeneratedContent = "An error occurred while generating content.";
        }
        finally
        {
            IsLoading = false;
        }
    }

    private async Task GenerateFromText()
    {
        IsLoading = true;
        try
        {
            Console.Write($"Subject: {Subject}");
            var prompt = $"This is the provided text: {WordFile}. Look for the relevant content for a page titled '{MenuItem.MenuItem.Name}' of a '{Subject}' website. Please do not attach any explanation.";
            GeneratedContent = await ContentEditorAIService.GetGeneratedContentAsync(SessionId, prompt);
            MenuItem.Content = GeneratedContent;
            await OnContentUpdated.InvokeAsync(MenuItem);
        }
        catch
        {
            GeneratedContent = "An error occurred while generating content.";
        }
        finally
        {
            IsLoading = false;
        }
    }



    async Task OnPaste(HtmlEditorPasteEventArgs args)
    {
        // console.Log($"Paste: {args.Html}");
        MenuItem.Content = args.Html;
        await OnContentUpdated.InvokeAsync(MenuItem);
    }

    async Task OnChange(string html)
    {
        // console.Log($"Change: {html}");
        MenuItem.Content = html;
        await OnContentUpdated.InvokeAsync(MenuItem);
    }

    async Task OnInput(string html)
    {
        // console.Log($"Input: {html}");
        MenuItem.Content = html;
        await OnContentUpdated.InvokeAsync(MenuItem);
    }

    void OnExecute(HtmlEditorExecuteEventArgs args)
    {
        //console.Log($"Execute: {args.CommandName}");
    }

    void OnUploadComplete(UploadCompleteEventArgs args)
    {
        //console.Log($"Upload complete: {args.RawResponse}");
    }

    private async Task HandleFileUpload(InputFileChangeEventArgs e)
    {
        if (e.FileCount == 0) return;

        IsLoading = true;

        try
        {            
            var uploadPath = Path.Combine("wwwroot", "uploads", userId);

            foreach (var file in e.GetMultipleFiles())
            {
                var folder = GetFolderForFile(file.ContentType);
                var folderPath = Path.Combine(uploadPath, folder);

                // Create directories if they don't exist
                if (!Directory.Exists(folderPath))
                {
                    Directory.CreateDirectory(folderPath);
                }

                // Save file
                var filePath = Path.Combine(folderPath, file.Name);
                using (var stream = new FileStream(filePath, FileMode.Create))
                {
                    await file.OpenReadStream(50*1024*1024).CopyToAsync(stream);
                }

                // Add relative path to content
                var relativePath = $"/uploads/{userId}/{folder}/{file.Name}";
                AppendFilePathToContent(file.ContentType, relativePath);
            }
        }
        catch (Exception ex)
        {
            // console.Log($"Error uploading files: {ex.Message}");
        }
        finally
        {
            IsLoading = false;
        }
    }

    private string GetFolderForFile(string contentType)
    {
        return contentType switch
        {
            var type when type.StartsWith("image/") => "images",
            var type when type.StartsWith("video/") => "videos",
            var type when type.StartsWith("audio/") => "audio",
            _ => "others"
        };
    }

    private void AppendFilePathToContent(string contentType, string relativePath)
    {
        if (contentType.StartsWith("image/"))
        {
            GeneratedContent += $"\nPhoto URL: {relativePath}";
        }
        else if (contentType.StartsWith("video/"))
        {
            GeneratedContent += $"\nVideo URL: {relativePath}";
        }
        else if (contentType.StartsWith("audio/"))
        {
            GeneratedContent += $"\nAudio URL: {relativePath}";
        }

        MenuItem.Content = GeneratedContent;
        OnContentUpdated.InvokeAsync(MenuItem);
    }

}