namespace ZA.CoreService.ESBCertificateManager.Services;

/// <summary>
/// Fehlerdialog mit Text und Button „In Zwischenablage kopieren“.
/// Kopiert den Fehlertext beim Öffnen automatisch.
/// </summary>
public static class CopyableErrorDialog
{
    public static void Show(
        IWin32Window? owner,
        string title,
        string details)
    {
        string text = string.IsNullOrWhiteSpace(details)
            ? "(keine Fehlerdetails)"
            : details.Trim();

        TryCopy(text);

        using Form dialog = new()
        {
            Text = title,
            StartPosition = FormStartPosition.CenterParent,
            FormBorderStyle = FormBorderStyle.FixedDialog,
            MaximizeBox = false,
            MinimizeBox = false,
            ShowInTaskbar = false,
            ClientSize = new Size(640, 420),
            BackColor = Color.FromArgb(16, 28, 48),
            ForeColor = Color.FromArgb(241, 245, 249),
            Font = new Font("Segoe UI", 9.5f)
        };

        Label hint = new()
        {
            Text = "In Zwischenablage kopiert.",
            Location = new Point(16, 12),
            AutoSize = false,
            Size = new Size(608, 28),
            ForeColor = Color.FromArgb(208, 171, 57)
        };

        TextBox box = new()
        {
            Location = new Point(16, 44),
            Size = new Size(608, 310),
            Multiline = true,
            ReadOnly = true,
            ScrollBars = ScrollBars.Both,
            WordWrap = false,
            Text = text,
            BackColor = Color.FromArgb(12, 22, 38),
            ForeColor = Color.FromArgb(241, 245, 249),
            BorderStyle = BorderStyle.FixedSingle,
            Font = new Font("Consolas", 9f)
        };

        Label copyStatus = new()
        {
            Text = "✓ In Zwischenablage kopiert",
            Location = new Point(16, 368),
            AutoSize = true,
            ForeColor = Color.FromArgb(90, 200, 140)
        };

        Button btnCopy = new()
        {
            Text = "Nochmal kopieren",
            Location = new Point(280, 362),
            Size = new Size(160, 36),
            FlatStyle = FlatStyle.Flat,
            BackColor = Color.FromArgb(39, 52, 73),
            ForeColor = Color.FromArgb(241, 245, 249),
            Cursor = Cursors.Hand
        };

        btnCopy.FlatAppearance.BorderColor =
            Color.FromArgb(36, 74, 117);

        btnCopy.Click += (_, _) =>
        {
            if (TryCopy(text))
            {
                copyStatus.Text = "✓ Erneut kopiert";
                copyStatus.ForeColor =
                    Color.FromArgb(90, 200, 140);
            }
            else
            {
                copyStatus.Text = "Kopieren fehlgeschlagen";
                copyStatus.ForeColor =
                    Color.FromArgb(220, 100, 100);
            }
        };

        Button btnClose = new()
        {
            Text = "Schließen",
            Location = new Point(456, 362),
            Size = new Size(168, 36),
            FlatStyle = FlatStyle.Flat,
            BackColor = Color.FromArgb(0, 110, 182),
            ForeColor = Color.White,
            Cursor = Cursors.Hand,
            DialogResult = DialogResult.OK
        };

        btnClose.FlatAppearance.BorderSize = 0;

        dialog.Controls.Add(hint);
        dialog.Controls.Add(box);
        dialog.Controls.Add(copyStatus);
        dialog.Controls.Add(btnCopy);
        dialog.Controls.Add(btnClose);
        dialog.AcceptButton = btnClose;
        dialog.CancelButton = btnClose;

        dialog.ShowDialog(owner);
    }

    private static bool TryCopy(string text)
    {
        try
        {
            Clipboard.SetText(text);
            return true;
        }
        catch
        {
            return false;
        }
    }
}