using Microsoft.EntityFrameworkCore;
using PnvPanel.Application.Common.Interfaces;
using PnvPanel.Application.Common.Messaging;
using PnvPanel.Application.Common.Models;

namespace PnvPanel.Application.Admin.Nodes;

public sealed class DeleteNodeCommandHandler(IAppDbContext dbContext, IXuiPanelGateway gateway)
    : ICommandHandler<DeleteNodeCommand, Result>
{
    public async Task<Result> Handle(DeleteNodeCommand command, CancellationToken cancellationToken)
    {
        var node = await dbContext.Nodes.FirstOrDefaultAsync(n => n.Id == command.NodeId, cancellationToken);
        if (node is null)
            return Result.Failure(NodeErrors.NotFound);

        var inbounds = await dbContext.Inbounds.Where(i => i.NodeId == node.Id).ToListAsync(cancellationToken);
        dbContext.Inbounds.RemoveRange(inbounds);
        dbContext.Nodes.Remove(node);
        gateway.InvalidateClient(node.Id);

        return Result.Success();
    }
}