import qs.Commons
import qs.Services
import qs.Widgets
import QtQuick
import QtQuick.Controls
import QtQuick.Layouts

NIconButton {
    id: root
    sizeMultiplier: 0.8

    readonly property real scaling: ScalingService.scale(screen)

    colorBg: Color.mSurfaceVariant
    colorFg: Color.mOnSurface
    colorBorder: Color.transparent
    colorBorderHover: Color.transparent

    // Enhanced icon states with better visual feedback
    icon: {
        if (ArchUpdaterService.busy) return "sync"
        if (ArchUpdaterService.updatePackages.length > 0) {
            // Show different icons based on update count
            const count = ArchUpdaterService.updatePackages.length
            if (count > 50) return "system_update_alt" // Many updates
            if (count > 10) return "system_update" // Moderate updates
            return "system_update" // Few updates
        }
        return "task_alt"
    }

    // Enhanced tooltip with more information
    tooltipText: {
        if (ArchUpdaterService.busy)
            return "Checking for updates…";

        var count = ArchUpdaterService.updatePackages.length;
        if (count === 0)
            return "System is up to date ✓";

        var header = count === 1 ? "One package can be upgraded:" : (count + " packages can be upgraded:");

        var list = ArchUpdaterService.updatePackages || [];
        var s = "";
        var limit = Math.min(list.length, 8); // Reduced to 8 for better readability
        for (var i = 0; i < limit; ++i) {
            var p = list[i];
            s += (i ? "\n" : "") + (p.name + ": " + p.oldVersion + " → " + p.newVersion);
        }
        if (list.length > 8)
            s += "\n… and " + (list.length - 8) + " more";

        return header + "\n\n" + s + "\n\nClick to update system";
    }

    // Enhanced click behavior with confirmation
    onClicked: {
        if (ArchUpdaterService.busy)
            return;
        
        if (ArchUpdaterService.updatePackages.length > 0) {
            // Show confirmation dialog for updates
            PanelService.updatePanel.toggle(screen);
        } else {
            // Just refresh if no updates available
            ArchUpdaterService.doPoll();
        }
    }


}