import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Controls 2.15
import QtQuick.Layouts 1.15
import QtMultimedia 5.15
import DelegateUI 1.0
import QmlTool 1.0
import Qt.labs.platform 1.1 // 系统托盘支持
import FileTransfer 1.0
import "../MyGlobals" 1.0
import "../Component" 1.0

DelWindow {
    width: 800
    height: 600
    visible: false
    title: qsTr("下载任务")
    captionBar.topButtonVisible: true
    captionBar.winIconDelegate: Image {
        source: "qrc:/image/logo.png"
        width: 20
        height: 20
    }

    Shortcut {
        sequences: ["Esc"]
        onActivated: close()
    }

    function showEx(){
        x = GlobalVars.main_Window.x + GlobalVars.main_Window.width
        y = GlobalVars.main_Window.y
        show();
        width = 800
    }

    property var downloadModel: []

    function flushQuest(){
        listView.model = downloadModel
    }

    Timer {
        id: timer
        interval: 10
        running: true
        repeat: true
        onTriggered: {
            var obj = downloadModel[0];
            //未开始的任务
            if(!obj)return;
            //需要是未完成的任务
            if(obj.status !== 3){
                //上一个指令已完成开始检测下一个指令
                if(obj.instruction){
                    obj.instruction = false;
                    //还有下一个指令
                    if(obj.questInstruction.length > 0){
                        var ins =  obj.questInstruction.shift();
                        ins(obj);
                    }
                    //指令已全部做完
                    else{
                        var successobj = downloadModel.shift()
                        successobj.status = 3
                        downloadModel.push(successobj);
                    }
                }
            }
            flushQuest()
        }
    }

    Component.onCompleted: {
        GlobalVars.downlad_quest_window = this;
        FileTransfer.downloadCompleted.connect(downloadCompleted)
        FileTransfer.downloadProgressChanged.connect(progressChanged)
        FileTransfer.uploadCompleted.connect(uploadCompleted)
        FileTransfer.uploadProgressChanged.connect(progressChanged)
    }

    Component.onDestruction: {
        FileTransfer.downloadCompleted.disconnect(downloadCompleted)
        FileTransfer.downloadProgressChanged.disconnect(progressChanged)
        FileTransfer.uploadCompleted.disconnect(uploadCompleted)
        FileTransfer.uploadProgressChanged.disconnect(progressChanged)
    }

    //下载完成的信号
    function downloadCompleted(success, message)  {
        var obj = downloadModel[0];
        if(!obj)return;
        if(message === "quest"){
            if (success) {
                obj.instruction = true;
            } else {
                var successobj = downloadModel.shift()
                successobj.status = 3
                successobj.error = 1
                downloadModel.push(successobj);
            }
        }
    }
    //进度的信号
    function progressChanged(rate,add){
        var obj = downloadModel[0];
        if(!obj)return;
        obj.progress = rate * 100.0;
    }
    //上传完成的信号
    function uploadCompleted(success, message)  {
        var obj = downloadModel[0];
        if(!obj)return;
        if(message === "quest"){
            if (success) {
                obj.instruction = true;
            } else {
                var successobj = downloadModel.shift()
                successobj.status = 3
                successobj.error = 1
                downloadModel.push(successobj);
            }
        }
    }


    function addQuest(filename,questinstruction){
        downloadModel.unshift({
                                  //文件名
                                  fileName: filename,
                                  //任务指令
                                  questInstruction:questinstruction,
                                  //指令完成状态
                                  instruction:true,
                                  //进度条默认0
                                  progress: 0,
                                  //任务创建时间
                                  remainingTime: Math.floor(Date.now() / 1000),
                                  //任务状态
                                  status: 0,
                                  //失败Flag
                                  error:0
                              })
        showEx();
    }

    Rectangle{
        anchors.fill:parent
        anchors.topMargin: 45
        anchors.margins: 15
        color:"transparent"
        radius:8
        border.color: DelTheme.isDark ? "#23272e" : "#f0f4f7"
        border.width: 3

        // 任务列表
        ScrollView {
            anchors.fill:parent
            anchors.margins: 3

            ListView {
                id: listView
                model: downloadModel
                clip: true

                delegate: DownloadItemDelegate {
                    width: listView.width
                }
            }
        }
    }


    // // 底部状态栏
    // CustomProgressBar {
    //     anchors.bottom: parent.bottom
    //     anchors.left: parent.left
    //     anchors.right: parent.right
    //     anchors.margins: 15
    //     height: 35
    //     antialiasing: true
    // }
}