@using LANCommander.Launcher.Models
@implements IDisposable
@inject ImportManagerService ImportManagerService
@inject ImportService ImportService
@inject IMessageService MessageService
@inject ILogger<ImportHandler> Logger
@inject LocalizationService LocalizationService

@code 
{
    [Parameter] public EventCallback<ImportProgressEventArgs> Progress { get; set; }

    public bool Importing;
    int ImportStatusIndex = 0;
    int ImportStatusTotal = 0;

    protected override void OnInitialized()
    {
        ImportManagerService.OnImportRequested += Import;
    }

    public void Dispose()
    {
        if (ImportManagerService != null)
        {
            ImportManagerService.OnImportRequested -= Import;
        }

        if (ImportService != null)
        {
            // Clear any existing handlers
            ImportService.OnImportComplete -= OnImportCompleteHandler;
            ImportService.OnImportFailed -= OnImportFailedHandler;
            ImportService.OnImportUpdated -= OnImportUpdatedHandler;
        }
    }

    public async Task Import()
    {
        if (!Importing)
        {
            Logger?.LogInformation("Starting import process");

            // Clear any existing handlers
            ImportService.OnImportComplete -= OnImportCompleteHandler;
            ImportService.OnImportFailed -= OnImportFailedHandler;
            ImportService.OnImportUpdated -= OnImportUpdatedHandler;

            // Add our handlers
            ImportService.OnImportComplete += OnImportCompleteHandler;
            ImportService.OnImportFailed += OnImportFailedHandler;
            ImportService.OnImportUpdated += OnImportUpdatedHandler;

            // Now start the import process
            Importing = true;
            ImportStatusIndex = 0;
            ImportStatusTotal = 0;
            await NotifyProgress(ImportProgressState.Importing);

            await InvokeAsync(StateHasChanged);
            MessageService.Info(LocalizationService.GetString("ImportStarted"), 2.5);

            Logger?.LogInformation("Starting import");
            await ImportService.ImportLibraryAsync(); // Call directly instead of using JS
        }
    }

    private async Task NotifyProgress(ImportProgressState state)
    {
        if (!Progress.HasDelegate)
            return;

        await Progress.InvokeAsync(new ImportProgressEventArgs
        {
            State = state,
            Index = ImportStatusIndex,
            Total = ImportStatusTotal,
        });
    }

    private async Task OnImportCompleteHandler()
    {
        Logger?.LogInformation("Import Complete handler called");
        Importing = false;
        ImportStatusIndex = 0;
        ImportStatusTotal = 0;

        await NotifyProgress(ImportProgressState.Imported);
        MessageService.Success(LocalizationService.GetString("ImportComplete"), 3);
    }

    private async Task OnImportFailedHandler(Exception ex)
    {
        Importing = false;
        ImportStatusIndex = 0;
        ImportStatusTotal = 0;

        await NotifyProgress(ImportProgressState.Failed);
        MessageService.Error(LocalizationService.GetString("ImportFailed"), 3);
    }

    private async Task OnImportUpdatedHandler(ImportStatusUpdate status)
    {
        Logger?.LogInformation("Import Update handler called: {Index}/{Total}", status.Index, status.Total);
        ImportStatusIndex = status.Index;
        ImportStatusTotal = status.Total;

        await NotifyProgress(ImportProgressState.Updated);
    }

    public enum ImportProgressState
    {
        None = 0,
        Importing,
        Updated,
        Imported,
        Failed,
    }

    public class ImportProgressEventArgs
    {
        public int Index { get; set; } = 0;
        public int Total { get; set; } = 0;
        public ImportProgressState State { get; set; } = ImportProgressState.None;
        public bool IsActive => State > ImportProgressState.None && State < ImportProgressState.Imported;
    }
}