@page "/preview/{siteid:int}"
@page "/preview/{siteid:int}/{topic?}"
@using BLAIzor.Models
@using BLAIzor.Services
@using Google.Cloud.Speech.V1
@using Microsoft.AspNetCore.Identity.UI.Services
@using BLAIzor.Components.Partials
@using System.Text
@using System.Text.Json
@using System.Net

@inject AIService ChatGptService
@rendermode InteractiveServer
@inject IJSRuntime jsRuntime;
@inject IConfiguration configuration
@inject ContentService _contentService
@inject ContentEditorService _contentEditorService
@inject ScopedContentService _scopedContentService
@inject IEmailSender _emailService
@inject NavigationManager _navigationManager
@inject IHttpContextAccessor HttpContextAccessor
@inject DesignTemplateService DesignTemplateService
@inject CssTemplateService CssTemplateService
@inject CssInjectorService CssService
@inject HttpClient Http


<div class="page" style="z-index: 1">
    <NavMenu MenuString="@Menu" OnMenuClicked=@MenuClick></NavMenu>
    <main>

        <article class="content text-center" style="position: relative; z-index: 4;">
            <PageTitle>Home</PageTitle>
            <VideoComponent SelectedBrandName="@selectedBrandName" />
            @* <HeadContent>

                @if (!string.IsNullOrEmpty(dynamicallyLoadedCss))
                {
                    <style>@dynamicallyLoadedCss</style>
                }

            </HeadContent> *@

            <div id="maincontrol">

                @*  <div class="hoverslide"> *@

                <div class="displaysearch">
                    <div class="searchBox">

                        <input @oninput="(e) => UserInput = e.Value.ToString()"
                        @onkeydown="@Enter" class="searchInput" type="text" name="" value="@UserInput" placeholder="Ask any question">
                        <button data-hint="ask anything" class="searchButton border-0" @onclick="SendUserQuery" href="#">
                            <i class="fa-solid fa-hexagon-nodes-bolt" style="font-size:20px"></i>
                        </button>
                    </div>

                    @{
                        if (VoiceEnabled)
                        {

                            if (STTEnabled)
                            {
                                <button data-hint="talk" id="recButton" class="btn btn-primary voicebutton" onclick="startRecording()"><i class="fa-solid fa-microphone"></i></button>
                                <button id="stopButton" class="btn btn-primary voicebutton" onclick="stopRecording()" hidden><i class="fa-solid fa-microphone-slash"></i></button>
                            }

                            if(TTSEnabled)
                            {
                                if(!AiVoicePermitted)
                                {
                                    <button data-hint="listen" class="btn btn-primary voicebutton" @onclick="AllowAIVoice"><i class="fa-solid fa-volume-xmark"></i>

                                    </button>
                                }
                                else
                                {
                                    <button data-hint="listen" class="btn btn-primary voicebutton" @onclick="MuteAI"><i class="fa-solid fa-volume-high"></i></button>
                                }
                                <audio id="audioPlayer" hidden style="display: none;"></audio>
                            }
                            

                        }
                        
                    }

                </div>

                @*  Type anything *@

                @*  </div> *@
            </div>

            <p id="recordingText"></p>

            <div id="currentContent">
                @{
                    if (!string.IsNullOrEmpty(HtmlContent.ToString()))
                    {
                        <div class="pt-5 @FirstColumnClass">
                            @((MarkupString)HtmlContent.ToString())
                        </div>
                        if (isEmailFormVisible)
                        {
                            <div class="pt-5 col-12 col-md-6">
                                <ContactFormComponent ContactFormModel="@ContactFormModel" DocumentEmailAddress="@DocumentEmailAddress" OnDataChanged="@ContentChangedInForm"></ContactFormComponent>
                                <button @onclick="CancelEmail" class="btn btn-primary">Cancel</button>
                            </div>
                        }
                    }
                    else
                    {
                        <div class="text-center row" style="height: 70vh;">
                            <p>@StatusContent</p>
                            <div class="mydiv"></div>
                            <div class="mydiv"></div>
                            <div class="mydiv"></div>
                            <div class="mydiv"></div>
                            <div class="mydiv"></div>

                        </div>
                    }


                }
            </div>
            <button class="btn btn-primary" @onclick="HomeClick"><i class="fa-solid fa-rotate"></i></button>
        </article>
    </main>
</div>

<script>

    var sessionId = null;

    function setSessionId(id) {
    sessionId = id;
    console.log("Session ID set:", sessionId);
    }

    function callAI(inputString) {
    console.log(sessionId);
    DotNet.invokeMethodAsync('BLAIzor', 'CallCSharpMethod3', inputString, sessionId, false)
    .then(response => console.log(response))
    .catch(error => console.error(error));
    }

    
</script>
<script>
    function openCalendar(calendlyUserName) {
    console.log(calendlyUserName);
    Calendly.initPopupWidget({
    url: 'https://calendly.com/' + calendlyUserName + '?name=JohnDoe&email=john.doe@example.com'
    });
    }
</script>

<script>
    function openContactForm(emailAddress) {
        console.log(emailAddress);

        if (emailAddress) {
        DotNet.invokeMethodAsync('BLAIzor', 'OpenEmailForm3', emailAddress)

        }
    }
</script>


@code {
    public static Preview myHome;
    private string? Subdomain;
    [Parameter]
    public int siteid { get; set; }
    [Parameter]
    public string? topic { get; set; }
    public SiteInfo SiteInfo;
    private StringBuilder HtmlContent = new();
    private string TextContent = "";
    private string StatusContent = "";
    private string UserInput = string.Empty;
    private string ChatGptResponse = string.Empty;
    private bool isRecording = false;

    private string FirstColumnClass = "";
    private bool isEmailFormVisible = false;

    private ContactFormModel ContactFormModel = new();
    // private string? SuccessMessage;
    // private string? ErrorMessage;
    private string? DocumentEmailAddress = "";
    private string selectedBrandName = "";
    private string dynamicallyLoadedCss = string.Empty;
    private string collectionName = "html_snippets";

    private string sessionId;
    private static readonly Dictionary<string, Preview> _instances = new();
    private string Menu;
    private bool VoiceEnabled;
    private bool TTSEnabled;
    private bool STTEnabled;
    private bool _initVoicePending = false; 
    private bool welcomeStage = true;
    private bool AiVoicePermitted = false;

    private string GetApiKey() =>
            configuration?.GetSection("ElevenLabsAPI")?.GetValue<string>("ApiKey") ?? string.Empty;

    private void AllowAIVoice()
    {
        AiVoicePermitted = true;
    }
    private void MuteAI()
    {
        AiVoicePermitted = false;
    }

    private async Task ConvertTextToSpeech()
    {
        // string plainText = WebUtility.HtmlDecode(HtmlContent.ToString());

        if (string.IsNullOrWhiteSpace(TextContent) || VoiceEnabled == false || TTSEnabled == false || welcomeStage || !AiVoicePermitted)
            return;

        Console.WriteLine("------------------------------OMGOMGOMG TTS call!!!!-------------");

        var requestContent = new
        {
            text = TextContent,
            // model_id = "eleven_multilingual_v2",
            model_id = "eleven_flash_v2_5",
            voice_settings = new
            {
                stability = 0.5,
                similarity_boost = 0.75,
                speed = 1.1
            }
        };

        var requestJson = JsonSerializer.Serialize(requestContent);
        string voiceId;
        if (SiteInfo.voiceId != null)
        {
            voiceId = SiteInfo.voiceId;
        }
        else
        {
            voiceId = "rE22Kc7UGoQj4zdHNYvd";
        }
        // string voiceId = "yyPLNYHg3CvjlSdSOdLh";

        var httpRequest = new HttpRequestMessage(HttpMethod.Post, $"https://api.elevenlabs.io/v1/text-to-speech/{voiceId}/stream")
            {
                Content = new StringContent(requestJson, Encoding.UTF8, "application/json")
            };

        httpRequest.Headers.Add("xi-api-key", GetApiKey());

        var response = await Http.SendAsync(httpRequest);
        if (response.IsSuccessStatusCode)
        {
            var audioBytes = await response.Content.ReadAsByteArrayAsync();
            var base64Audio = Convert.ToBase64String(audioBytes);
            var audioDataUrl = $"data:audio/mpeg;base64,{base64Audio}";

            await jsRuntime.InvokeVoidAsync("playAudio", audioDataUrl);
        }
        else
        {
            // Handle error response
            var errorContent = await response.Content.ReadAsStringAsync();
            Console.Error.WriteLine($"Error: {errorContent}");
        }
    }

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (firstRender)
        {
            await jsRuntime.InvokeVoidAsync("setSessionId", sessionId);
            await jsRuntime.InvokeVoidAsync("initHints");

        }

        if (_initVoicePending)
        {
            Console.WriteLine("PENDING VOICE--------------------------------------------------");
            _initVoicePending = false;
            await jsRuntime.InvokeVoidAsync("initVoiceRecorder", "ProcessAudio3");
        }
    }

    protected override Task OnInitializedAsync()
    {
        VoiceEnabled = configuration?.GetSection("AiSettings")?.GetValue<bool>("VoiceActivated") ?? false;
        return base.OnInitializedAsync();
    }

    public async void MenuClick(string menuName)
    {
        await CallCSharpMethod3(menuName, sessionId, true);
    }

    public void HomeClick()
    {
        //ChatGptService.OnContentReceived -= UpdateContent;
        AIService.OnContentReceived -= UpdateContent;
        _navigationManager.Refresh(true);
    }

    // private async Task HandleValidSubmit()
    // {
    //     try
    //     {
    //         // Simulate sending an email
    //         await ((EmailService)_emailService).SendEmailAsync(ContactFormModel, DocumentEmailAddress);
    //         SuccessMessage = "Thank you for contacting us! Your message has been sent.";
    //         ErrorMessage = null;

    //         // Clear the form
    //         ContactFormModel = new();
    //     }
    //     catch (Exception ex)
    //     {
    //         ErrorMessage = "An error occurred while sending your message. Please try again later.";
    //         SuccessMessage = null;
    //     }
    // }

    private void CancelEmail()
    {
        FirstColumnClass = "";
        isEmailFormVisible = false;
        StateHasChanged();
    }

    public Preview()
    {
        myHome = this; // Set the static reference to the current instance
    }

    [JSInvokable("OpenEmailForm3")]
    public static async void OpenEmailForm3(string emailAddress)
    {
        if (myHome != null)
        {
            await myHome.DisplayEmailForm(emailAddress);
        }
        Console.Write("openEmail with: " + emailAddress);
    }

    public async Task DisplayEmailForm(string emailAddress)
    {
        FirstColumnClass = "col-12 col-md-6";
        isEmailFormVisible = true;
        DocumentEmailAddress = emailAddress;
        StateHasChanged();
        var result = await jsRuntime.InvokeAsync<object>("getDivContent", "currentContent");
        _scopedContentService.CurrentDOM = JsonSerializer.Serialize(result);
        // Console.Write($"{_scopedContentService.CurrentDOM}");
    }


    [JSInvokable("CallCSharpMethod3")]
    public static async Task CallCSharpMethod3(string input, string sessionId, bool forceUnmodified)
    {

        if (_instances.TryGetValue(sessionId, out var instance))
        {
            await instance.HandleJsCall(input, sessionId, forceUnmodified);
        }
        Console.Write("Button clicked:" + input);
    }

    [JSInvokable("ProcessAudio3")]
    public static async Task ProcessAudio3(string base64Audio, string sessionId)
    {

        Console.Write("audio incoming");
        if (myHome != null)
        {
            if (myHome.STTEnabled == false) return;

            var languageCode = "hu-HU";
            if (myHome._scopedContentService.SelectedLanguage == "Hungarian")
            {
                languageCode = "hu-HU";
            }
            else if (myHome._scopedContentService.SelectedLanguage == "English")
            {
                languageCode = "en-US";
            }
            else if (myHome._scopedContentService.SelectedLanguage == "German")
            {
                languageCode = "de-DE";
            }
            var credentialsPath = myHome.configuration.GetSection("GoogleAPI").GetValue<string>("CredentialsPath");
            Console.Write(credentialsPath);
            var builder = new SpeechClientBuilder
                {
                    CredentialsPath = credentialsPath
                };
            var speech = builder.Build();

            byte[] audioBytes = Convert.FromBase64String(base64Audio);
            myHome.HtmlContent.Clear();
            var response = await speech.RecognizeAsync(new RecognitionConfig
                {
                    Encoding = RecognitionConfig.Types.AudioEncoding.Mp3,
                    SampleRateHertz = 48000, // Match the actual sample rate
                    LanguageCode = languageCode
                }, RecognitionAudio.FromBytes(audioBytes));
            Console.Write("BILLED: " + response.TotalBilledTime);
            foreach (var result in response.Results)
            {
                //Console.Write("RESULT: " + result.Alternatives.Count);
                foreach (var alternative in result.Alternatives)
                {
                    //Console.WriteLine($"Transcription: {alternative.Transcript}");
                    await myHome.HandleVoiceCommand(alternative.Transcript);
                }
            }
        }
    }

    private async Task SendMessage()
    {
        Console.WriteLine("Button clicked!");
        var menu = await GetMenuList();
        await ChatGptService.ProcessUserIntent(sessionId, UserInput, siteid, (int)SiteInfo.TemplateId!, collectionName, menu);
        UserInput = string.Empty;
    }

    protected override async Task OnParametersSetAsync()
    {
        sessionId = Guid.NewGuid().ToString();
        _instances[sessionId] = this;
        _scopedContentService.OnBrandNameChanged += HandleBrandNameChanged;
        selectedBrandName = _scopedContentService.SelectedBrandName;
        // Subdomain = HttpContextAccessor.HttpContext?.Items["Subdomain"]?.ToString();
        SiteInfo = await _scopedContentService.GetSiteInfoByIdAsync(siteid);
        if (SiteInfo != null)
        {

            // siteid = SiteInfo.Id;

            _scopedContentService.SelectedBrandName = SiteInfo.SiteName.ToLower();
            TTSEnabled = SiteInfo.TTSActive;
            STTEnabled = SiteInfo.STTActive;
            
            Console.Write("Selected brand name:" + _scopedContentService.SelectedBrandName);
        }
        else
        {
            // siteid = 1;
            _scopedContentService.SelectedBrandName = "default";
            TTSEnabled = false;
            STTEnabled = false;
            
        }
        _scopedContentService.SelectedSiteId = siteid;

        Console.Write("------------------------");
        // Load the CSS template for the selected brand from the database
        var designTemplate = await DesignTemplateService.GetByIdAsync((int)SiteInfo.TemplateId!);
        var cssTemplate = await CssTemplateService.GetByDesignTemplateIdAsync((int)SiteInfo.TemplateId);
        collectionName = designTemplate.QDrandCollectionName;

        if (cssTemplate != null)
        {
            dynamicallyLoadedCss = cssTemplate.CssContent; // Assuming Content holds the CSS string
            var cssPath = await CssTemplateService.SaveTempCssFileAsync(dynamicallyLoadedCss, sessionId);
            await jsRuntime.InvokeVoidAsync("seemgen.injectCssFile", cssPath);
        }


        Console.Write("------------------------");

        // ChatGptService.OnContentReceived += UpdateContent;
        AIService.OnContentReceived += UpdateContent;
        // ChatGptService.OnStatusChangeReceived += UpdateStatus;
        AIService.OnStatusChangeReceived += UpdateStatus;
        AIService.OnTextContentAvailable += UpdateTextContentForVoice;

        Menu = await GetMenuList();
        if (string.IsNullOrEmpty(HtmlContent.ToString()))
        {
            if (!string.IsNullOrWhiteSpace(topic))
            {
                UserInput = topic;
                await ChatGptService.ProcessContentRequest(sessionId, UserInput, siteid, (int)SiteInfo.TemplateId!, collectionName, Menu, true);
            }
            else
            {
                await ChatGptService.GetChatGptWelcomeMessage(sessionId, siteid, Menu);
            }
            
        }
        UserInput = string.Empty;
        _initVoicePending = true;
    }

    private async void UpdateContent(string receivedSessionId, string content)
    {
        if (receivedSessionId == sessionId) // Only accept messages meant for this tab
        {
            HtmlContent.Clear();
            HtmlContent.Append(content);
            //InvokeAsync(StateHasChanged); // Ensures UI updates dynamically
            await InvokeAsync(() =>
            {
                StateHasChanged();
            });
            //_scopedContentService.CurrentDOM = await jsRuntime.InvokeAsync<string>("getDivContent", "currentContent");
        }
    }

    private async void UpdateTextContentForVoice(string receivedSessionId, string content)
    {
        if (receivedSessionId == sessionId) // Only accept messages meant for this tab
        {

            TextContent = content;
            await ConvertTextToSpeech();
            //_scopedContentService.CurrentDOM = await jsRuntime.InvokeAsync<string>("getDivContent", "currentContent");
        }
    }

    private async void UpdateFinished(string receivedSessionId)
    {
        if (receivedSessionId == sessionId) // Only accept messages meant for this tab
        {
            Console.WriteLine("Content update finished");
            var result = await jsRuntime.InvokeAsync<object>("getDivContent", "currentContent");
            _scopedContentService.CurrentDOM = JsonSerializer.Serialize(result);
            Console.Write(_scopedContentService.CurrentDOM);
        }
    }

    private async Task ContentChangedInForm()
    {
        var result = await jsRuntime.InvokeAsync<object>("getDivContent", "currentContent");
        _scopedContentService.CurrentDOM = JsonSerializer.Serialize(result);
        Console.Write(_scopedContentService.CurrentDOM);
    }

    private async void UpdateStatus(string receivedSessionId, string content)
    {
        if (receivedSessionId == sessionId) // Only accept messages meant for this tab
        {
            StatusContent = content;
            //InvokeAsync(StateHasChanged); // Ensures UI updates dynamically
            await InvokeAsync(() =>
            {
                StateHasChanged();
            });
        }
    }

    public async Task Enter(KeyboardEventArgs e)
    {
        if (e.Code == "Enter" || e.Code == "NumpadEnter")
        {
            HtmlContent.Clear();
            var menu = await GetMenuList();
            await ChatGptService.ProcessUserIntent(sessionId, UserInput, siteid, (int)SiteInfo.TemplateId!, collectionName, menu);
            UserInput = string.Empty;
        }
    }

    public async Task HandleVoiceCommand(string input)
    {
        // HtmlContent = string.Empty;
        UserInput = input;
        await InvokeAsync(StateHasChanged);

        await SendUserQuery();
        //UserInput = string.Empty;
    }

    public async Task HandleJsCall(string input, string sessionId, bool forceUnmodified)
    {
        HtmlContent.Clear();
        await InvokeAsync(StateHasChanged);
        UserInput = input;
        Console.Write($"\n\n Input: {input} \n\n");
        await DisplayMenuContent(input, forceUnmodified);
        UserInput = string.Empty;
        await InvokeAsync(StateHasChanged);
    }

    private async Task SendUserQuery()
    {
        welcomeStage = false;
        if (!string.IsNullOrEmpty(UserInput))
        {
            HtmlContent.Clear();
            var menu = await GetMenuList();
            Console.Write($"\n\n Input: {UserInput} \n\n");
            await ChatGptService.ProcessUserIntent(sessionId, UserInput, siteid, (int)SiteInfo.TemplateId!, collectionName, menu);
            UserInput = string.Empty;
        }
    }

    private async Task DisplayMenuContent(string input, bool forceUnmodified)
    {
        welcomeStage = false;
        Console.WriteLine($"DisplayMenuContent 1: {input}");
        if (!string.IsNullOrEmpty(UserInput))
        {
            HtmlContent.Clear();
            var menu = await GetMenuList();
            var menuItem = (await GetMenuItems()).Where(m => m.Name == input).FirstOrDefault();
            if (menuItem == null)
            {
                await ChatGptService.ProcessContentRequest(sessionId, input, siteid, (int)SiteInfo.TemplateId!, collectionName, menu, forceUnmodified);
            }
            else
            {
                await ChatGptService.ProcessContentRequest(sessionId, menuItem, siteid, (int)SiteInfo.TemplateId!, collectionName, menu, forceUnmodified);
            }
            UserInput = string.Empty;
        }
    }

    private async Task<string> GetMenuList()
    {
        List<MenuItem> menuItems = (await _contentEditorService.GetMenuItemsBySiteIdAsync(siteid)).Where(m => m.ShowInMainMenu == true).OrderBy(m => m.SortOrder).ToList();
        string menuList = "";
        foreach (MenuItem item in menuItems)
        {
            menuList += item.Name + ",";
        }
        return menuList;
    }

    private async Task<List<MenuItem>> GetMenuItems()
    {
        List<MenuItem> menuItems = (await _contentEditorService.GetMenuItemsBySiteIdAsync(siteid)).Where(m => m.ShowInMainMenu == true).OrderBy(m => m.SortOrder).ToList();
        return menuItems;
    }

    private async void HandleBrandNameChanged()
    {
        selectedBrandName = _scopedContentService.SelectedBrandName;
        //StateHasChanged();
        await InvokeAsync(() =>
        {
            StateHasChanged();
        });
    }

    public void Dispose()
    {
        dynamicallyLoadedCss = "";
        HtmlContent.Clear();
        _scopedContentService.OnBrandNameChanged -= HandleBrandNameChanged;
        AIService.OnContentReceived -= UpdateContent;
        AIService.OnStatusChangeReceived -= UpdateStatus;
    }

    public async ValueTask DisposeAsync()
    {
        await CssTemplateService.DeleteSessionCssFile(sessionId);
    }
}