using Microsoft.JSInterop;

namespace DouwcoWebsite;

public class ScrollService : IDisposable
{
    private readonly IJSRuntime _jsRuntime;
    private DotNetObjectReference<ScrollService>? _dotNetObjectReference;
    private IJSObjectReference? _module;

    public event Action<string>? OnSectionChanged;

    public ScrollService(IJSRuntime jsRuntime)
    {
        _jsRuntime = jsRuntime;
        _dotNetObjectReference = DotNetObjectReference.Create(this);
    }

    public async Task InitializeAsync()
    {
        _module = await _jsRuntime.InvokeAsync<IJSObjectReference>(
            "import", "./js/scrollService.js");
        
        await _module.InvokeVoidAsync("initialize", _dotNetObjectReference);
    }

    [JSInvokable]
    public void HandleSectionChange(string sectionId)
    {
        OnSectionChanged?.Invoke(sectionId);
    }

    public async Task ScrollToSection(string sectionId)
    {
        if (_module != null)
        {
            await _module.InvokeVoidAsync("scrollToSection", sectionId);
        }
    }

    public void Dispose()
    {
        _dotNetObjectReference?.Dispose();
        if (_module != null)
        {
            _module.InvokeVoidAsync("dispose");
        }
    }
}