import QtQuick
import Quickshell
import qs.Services
import qs.Commons

Item {
  id: root

  property string widgetId: ""
  property var widgetProps: ({})
  property string screenName: widgetProps && widgetProps.screen ? widgetProps.screen.name : ""
  property string section: widgetProps && widgetProps.section || ""
  property int sectionIndex: widgetProps && widgetProps.sectionWidgetIndex || 0

  property string barDensity: "default"
  readonly property real scaling: barDensity === "mini" ? 0.8 : (barDensity === "compact" ? 0.9 : 1.0)

  // Don't reserve space unless the loaded widget is really visible
  implicitWidth: getImplicitSize(loader.item, "implicitWidth")
  implicitHeight: getImplicitSize(loader.item, "implicitHeight")

  function getImplicitSize(item, prop) {
    return (item && item.visible) ? Math.round(item[prop]) : 0
  }

  Loader {
    id: loader
    anchors.fill: parent
    active: widgetId !== ""
    asynchronous: false
    sourceComponent: {
      if (!active) {
        return null
      }
      return BarWidgetRegistry.getWidget(widgetId)
    }

    onLoaded: {
      if (item && widgetProps) {
        // Apply properties to loaded widget
        for (var prop in widgetProps) {
          if (item.hasOwnProperty(prop)) {
            item[prop] = widgetProps[prop]
          }
        }
        // Explicitly set scaling property
        if (item.hasOwnProperty("scaling")) {
          item.scaling = Qt.binding(function () {
            return root.scaling
          })
        }
      }

      // Register this widget instance with BarService
      if (screenName && section) {
        BarService.registerWidget(screenName, section, widgetId, sectionIndex, item)
      }

      if (item.hasOwnProperty("onLoaded")) {
        item.onLoaded()
      }

      //Logger.i("BarWidgetLoader", "Loaded", widgetId, "on screen", item.screen.name)
    }

    Component.onDestruction: {
      // Unregister when destroyed
      if (screenName && section) {
        BarService.unregisterWidget(screenName, section, widgetId, sectionIndex)
      }
      // Explicitly clear references
      widgetProps = null
    }
  }

  // Error handling
  onWidgetIdChanged: {
    if (widgetId && !BarWidgetRegistry.hasWidget(widgetId)) {
      Logger.w("BarWidgetLoader", "Widget not found in registry:", widgetId)
    }
  }
}