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import Quickshell.Widgets
import QtQuick.Effects
import QtQuick.Layouts
import QtQuick
import QtQuick.Controls
import QtQuick.Controls.Fusion
import qs.Services
import QtQml

Item {
  id: lockSurface

  property var screen
  property list<var> messages: []
  property bool responseRequired: false
  property bool responseVisible: false
  property string currentText: ""
  property bool authRunning: false

  signal response(string responseText)

  anchors.fill: parent

  Item {
    id: background

    anchors.fill: parent

    property Img current: one
    property string source: selector.selected

    WallpaperSelector {
      id: selector
      seed: lockSurface.screen?.name || ""
    }

    onSourceChanged: {
      if (!source)
	current = null;
      else if (current === one)
	two.update()
      else
	one.update()
    }

    Img { id: one }
    Img { id: two }

    component Img: Item {
      id: img

      property string source

      function update() {
	source = background.source || ""
      }

      anchors.fill: parent

      Image {
	id: imageSource

	source: img.source
	sourceSize: Qt.size(parent.width, parent.height)
	fillMode: Image.PreserveAspectCrop
	smooth: true
	visible: false
	asynchronous: true
	cache: false

	onStatusChanged: {
	  if (status === Image.Ready) {
	    background.current = img
	  }
	}
      }

      MultiEffect {
	id: imageEffect

	source: imageSource
	anchors.fill: parent
	blurEnabled: true
	blur: 1
	blurMax: 64
	blurMultiplier: 2

	opacity: 0

	states: State {
	  name: "visible"
	  when: background.current === img

	  PropertyChanges {
	    imageEffect.opacity: 1
	  }
	  StateChangeScript {
	    name: "unloadOther"
	    script: {
	      if (img === one)
		two.source = ""
	      if (img === two)
		one.source = ""
	    }
	  }
	}

	transitions: Transition {
	  SequentialAnimation {
	    NumberAnimation {
	      target: imageEffect
	      properties: "opacity"
	      duration: 5000
	      easing.type: Easing.OutCubic
	    }
	    ScriptAction {
	      scriptName: "unloadOther"
	    }
	  }
	}
      }
    }
  }

  Item {
    anchors {
      top: lockSurface.top
      left: lockSurface.left
      right: lockSurface.right
    }

    implicitWidth: lockSurface.width
    implicitHeight: 21

    Rectangle {
      anchors.fill: parent
      color: Qt.rgba(0, 0, 0, 0.75)
    }

    Clock {
      anchors.centerIn: parent
      calendarPopup: false
    }
  }

  WrapperRectangle {
    id: unlockUi

    Keys.onPressed: event => {
      if (!lockSurface.authRunning) {
	event.accepted = true;
	lockSurface.authRunning = true;
      }
    }
    focus: !passwordBox.visible

    visible: lockSurface.authRunning

    color: Qt.rgba(0, 0, 0, 0.75)
    margin: 8

    anchors.centerIn: parent

    ColumnLayout {
      spacing: 4

      BusyIndicator {
	visible: running
	running: !Array.from(lockSurface.messages).length && !lockSurface.responseRequired
      }

      Repeater {
	model: lockSurface.messages

	Text {
	  required property var modelData

	  font.pointSize: 10
	  font.family: "Fira Sans"
	  color: modelData.error ? "#f28a21" : "#ffffff"

	  text: String(modelData.text).trim()

	  Layout.fillWidth: true
	  horizontalAlignment: Text.AlignHCenter
	}
      }

      TextField {
	id: passwordBox

	visible: lockSurface.responseRequired
	echoMode: lockSurface.responseVisible ? TextInput.Normal : TextInput.Password
	inputMethodHints: Qt.ImhSensitiveData

	onTextChanged: lockSurface.currentText = passwordBox.text
	onAccepted: {
	  passwordBox.readOnly = true;
	  lockSurface.response(lockSurface.currentText);
	}

	Connections {
	  target: lockSurface
	  function onCurrentTextChanged() {
	    passwordBox.text = lockSurface.currentText
	  }
	}
	Connections {
	  target: lockSurface
	  function onResponseRequiredChanged() {
	    if (lockSurface.responseRequired)
	      passwordBox.readOnly = false;
	      passwordBox.focus = true;
	      passwordBox.selectAll();
	  }
	}

	Layout.topMargin: 4
	Layout.fillWidth: true
      }
    }
  }
}