@implements IAsyncDisposable

@using RobotNet10.ScriptEditor.Clients
@using RobotNet10.ScriptEditor.Models
@using RobotNet10.ScriptEditor.Dialogs
@using Microsoft.JSInterop
@using Microsoft.JSInterop.Implementation
@using Microsoft.AspNetCore.Components.Web
@using RobotNet10.ScriptEditor.Services
@using RobotNet10.ScriptEngine.Shared

@inject IJSRuntime JSRuntime
@inject IScriptEngineResource ScriptResource
@inject FileManagerHubClient FileManagerClient
@inject ScriptManagerHubClient ScriptManagerClient
@inject ScriptResourceResolver ResourceResolver
@inject ScriptWorkspace Workspace
@inject NavigationManager NavigationManager
@inject IDialogService DialogService
@using MudBlazor

<div class="script-editor-container">
    <!-- Phần 1: Sidebar (có thể resize ngang) -->
    <div class="sidebar-container" style="width: @(_sidebarWidth)px;">
        <div class="sidebar-content">
            <FileExplorer />
            <VariableManager />
            <TaskManager />
            <MissionManager />
        </div>
        <div class="sidebar-resizer"></div>
    </div>

    <!-- Phần 2 và 3: Editor Area và Console Panel (sắp xếp dọc) -->
    <div class="editor-console-container">
        <!-- Phần 2: Editor Area -->
        <div class="editor-area" id="editor-area">
            <div class="editor-area-content">
                <Editor />
            </div>
        </div>

        <!-- Resizer giữa Editor và Console -->
        <div class="vertical-resizer"></div>

        <!-- Phần 3: Console Panel (có thể resize dọc) -->
        <div class="console-panel" id="console-panel">
            <Console />
        </div>
    </div>
</div>

<MudOverlay Visible="@(!Workspace.IsInitialized)" DarkBackground Modal Absolute AutoClose="false">
    <MudProgressCircular Color="Color.Primary" Indeterminate="true" />
</MudOverlay>

@code {
    private int _sidebarWidth = 250; // Chiều rộng mặc định của sidebar (px)
    private IJSObjectReference? _jsModule;

    protected override void OnInitialized()
    {
        // Subscribe to edit permission revoked event
        FileManagerClient.EditPermissionRevoked += OnEditPermissionRevoked;
    }

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (firstRender)
        {
            try
            {
                _jsModule = await JSRuntime.InvokeAsync<IJSObjectReference>(
                    "import", "./_content/RobotNet10.ScriptEditor/scriptEditorResize.js");

                if (_jsModule != null)
                {
                    await _jsModule.InvokeVoidAsync("initializeLayout");
                }

                await FileManagerClient.StartAsync();
                await ScriptManagerClient.StartAsync();
                
                // Request edit permission before initializing workspace
                // This will always succeed and force out any previous connection
                try
                {
                    await FileManagerClient.RequestEditPermissionAsync();
                    
                    // Check if we actually have edit permission (depends on state)
                    var hasPermission = await FileManagerClient.HasEditPermissionAsync();
                    Workspace.IsReadOnly = !hasPermission;
                }
                catch (Exception)
                {
                    // If request fails, set to read-only
                    Workspace.IsReadOnly = true;
                }
                
                var references = await ResourceResolver.GetMetadataReferences(ScriptResource.Modules.ToArray(), ScriptResource.DocModules.ToArray());
                var rootFolder = await FileManagerClient.GetRootFolderAsync();

                Workspace.Initialize(references, ScriptResource.UsingNamespaces.ToArray(), ScriptResource.AppGlobalType, rootFolder);
                StateHasChanged();
            }
            catch (JSException)
            {
                // JavaScript module chưa được load, sẽ được xử lý sau
            }
            catch (Exception)
            {
                // Ignore other exceptions but don't crash the component
                // Mono runtime assertions (e.g., debugger-agent) are non-fatal
            }
        }
    }

    private async void OnEditPermissionRevoked(string? userId)
    {
        // Lock the workspace when permission is revoked
        Workspace.IsReadOnly = true;
        StateHasChanged();

        // Show dialog to inform user
        // User can only close by clicking reload button, not by clicking outside or pressing Escape
        var options = new DialogOptions 
        { 
            CloseButton = false,
            CloseOnEscapeKey = false,
            BackdropClick = false,
            MaxWidth = MaxWidth.Small,
            FullWidth = true
        };

        var parameters = new DialogParameters<PermissionRevokedDialog>
        {
            { x => x.OnReload, new Action(() => NavigationManager.NavigateTo(NavigationManager.Uri, forceLoad: true)) }
        };

        await DialogService.ShowAsync<PermissionRevokedDialog>("Edit Permission Revoked", parameters, options);
    }

    public async ValueTask DisposeAsync()
    {
        // Unsubscribe from events
        FileManagerClient.EditPermissionRevoked -= OnEditPermissionRevoked;

        if (_jsModule != null)
        {
            try
            {
                await _jsModule.InvokeVoidAsync("cleanupLayout");
                await _jsModule.DisposeAsync();
                
                // Revoke edit permission before stopping connection
                if (FileManagerClient.IsConnected)
                {
                    try
                    {
                        await FileManagerClient.RevokeEditPermissionAsync();
                    }
                    catch (Exception)
                    {
                        // Ignore errors when revoking permission during dispose
                    }
                }
                
                await FileManagerClient.StopAsync();
                await ScriptManagerClient.StopAsync();
            }
            catch (JSDisconnectedException)
            {
                // Ignore khi JS context đã bị disconnect
            }
        }
    }
}