prep-step/PrepStep/ProgressoComponentiForm.cs

namespace PrepStep;

public sealed class ProgressoComponentiForm : Form
{
    private readonly Label _lbl = new();
    private readonly ProgressBar _bar = new();

    public ProgressoComponentiForm()
    {
        Text = "Ricerca componenti referenziati in corso...";
        FormBorderStyle = FormBorderStyle.FixedDialog;
        StartPosition = FormStartPosition.CenterParent;
        MinimizeBox = false;
        MaximizeBox = false;
        ControlBox = false;
        ClientSize = new Size(400, 88);

        _lbl.Text = "Preparazione...";
        _lbl.AutoSize = true;
        _lbl.Location = new Point(16, 16);

        _bar.Location = new Point(16, 44);
        _bar.Size = new Size(368, 24);
        _bar.Minimum = 0;
        _bar.Maximum = 100;

        Controls.Add(_lbl);
        Controls.Add(_bar);
    }

    public void Aggiorna(int fatti, int totale)
    {
        int percento = totale > 0 ? (int)Math.Clamp(100.0 * fatti / totale, 0, 100) : 0;
        _bar.Value = percento;
        _lbl.Text = $"{fatti} / {totale} componenti analizzati ({percento}%)";
    }
}