//  This file is part of Friendiqa
//  https://github.com/lubuwest/Friendiqa
//  Copyright (C) 2017 Marco R. <thomasschmidt45@gmx.net>
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  In addition, as a special exception, the copyright holders give
//  permission to link the code of portions of this program with the
//  OpenSSL library under certain conditions as described in each
//  individual source file, and distribute linked combinations including
//  the two.
//
//  You must obey the GNU General Public License in all respects for all
//  of the code used other than OpenSSL. If you modify file(s) with this
//  exception, you may extend this exception to your version of the
//  file(s), but you are not obligated to do so. If you do not wish to do
//  so, delete this exception statement from your version. If you delete
//  this exception statement from all source files in the program, then
//  also delete it here.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.

import QtQuick 2.0
import QtQuick.Controls 1.2
import "qrc:/qml/genericqml"
import "qrc:/js/news.js" as Newsjs
import "qrc:/js/helper.js" as Helperjs
import "qrc:/js/service.js" as Service

Item {
    Connections{
        target:newstab
        onNewstabstatusChanged:{
            newstabstatusButton.text= qsTr(newstab.newstabstatus)
        }
    }

//    Connections{
//        target:root
//        onCurrentContactChanged:{
//            if (root.newContacts.length>0){
//                if(root.currentContact<root.newContacts.length){
//                downloadNotice.text= qsTr("Download profile image for ")+ root.newContacts[root.currentContact].name;
//                //print(root.newContacts[root.currentContact].name)
//                }
//            }else{downloadNotice.text=""}
//        }
//     }

    Connections{
        target:xhr
//        onError:{if (data=="contact"){downloadNotice.text=root.newContacts[root.currentContact].name+"... Error!"}}
        onSuccess:{replytimer.start() //wait 1 second to load new timeline
        }
    }

    Timer {id:replytimer; interval: 1000; running: false; repeat: false
        onTriggered: {
            if(newstab.newstabstatus=="Conversation"){
                showConversation(newsStack.timelineIndex-1,newsModel.get(0).newsitemobject)}
            else{
                var onlynew=true;
                Newsjs.getFriendsTimeline(login,db,contactlist,onlynew,newstab,function(rns,rnc){
                    root.contactLoadType="news";
                    root.news=rns;root.newContacts=rnc;})
            }
        }
    }


    function showNews(newsToShow){
       try{if (newsStack.depth>1){newsStack.pop()}}catch(e){}
       newsBusy.running=false;
       var currentTime= new Date();
       downloadNotice.text="";
       var msg = {'currentTime': currentTime, 'model': newsModel,'news':newsToShow};
       newsWorker.sendMessage(msg);
    }

    function showConversation(conversationIndex,newsitemobject){
        //newsBusy.running=true;
        root.contactLoadType="conversation";
        newsStack.conversationIndex= conversationIndex;
        if(newsitemobject.messagetype==0){
            Newsjs.requestConversation(root.login,db,newsitemobject.status_id,root.contactlist,root,function(ns,nc){
            root.news=ns;root.newContacts=nc;
        })}
        else{Newsjs.conversationfromdb(root.db,root.login.username,newsitemobject.statusnet_conversation_id, function(newsarray){
            root.news=newsarray;root.newContacts=[];
        })}
    }

    function showContact(contact){
        var component = Qt.createComponent("qrc:/qml/contactqml/ContactDetailsComponent.qml");
        if (component.status== Component.Ready){
            var contactDetails = component.createObject(newstab,{"contact": contact})
        }
    }

    function onFriendsMessages(friend){
        newstab.newstabstatus="Contact"
        Newsjs.newsfromdb(db,root.login.username, function(dbnews){
            if (dbnews.length==0){
                Newsjs.newsfromdb(db,login.username,function(forumnews){
                    showNews(forumnews)
                },friend.url)
            }
           else showNews(dbnews)
       },friend.id)
    }

    function onDirectMessage(friend){
        newstab.newstabstatus="SendMessage"
        newsStack.push({item:"qrc:/qml/newsqml/MessageSend.qml",properties:{"reply_to_user": friend,"directmessage":1,"login":root.login}});
    }



   StackView{
       id: newsStack
       anchors.fill:parent
       property int conversationIndex: 0

       initialItem:Rectangle {
        y:1
        color: "white"

        BlueButton{
            id:newstabstatusButton
            anchors.top: parent.top
            anchors.topMargin: 0.5*mm
            text: qsTr(newstab.newstabstatus)
            onClicked: {newstabmenu.popup()}
        }

        Row{
           spacing: mm
           anchors.top: parent.top
           anchors.topMargin: 0.5*mm
           anchors.right: parent.right

           BlueButton {
               id: newMessageButton
               text: "\uf040"
               onClicked: {
                   var groups=[];
                   Helperjs.readData(root.db,"groups",root.login.username,function(groupobject){
                       groups=groupobject
                   });
                   newstab.newstabstatus="SendMessage";
                   Helperjs.readData(root.db,"contacts",root.login.username,function(friends){
                      newsStack.push({item:"qrc:/qml/newsqml/MessageSend.qml",properties:{"contacts": friends,"login":root.login}})
                   },"isFriend",1);
               }
           }
           BlueButton {
             id: quitButton
             text: "\uf08b"
             onClicked: {Service.cleanNews(root.db,function(){
                 Service.cleanContacts(root.login,root.db,function(){
                    Qt.quit() })
             })}
           }
           BlueButton {
            id: update
            text: "\uf021"
            onClicked: {
                newsBusy.running=true;
                newstab.newstabstatus=login.newsViewType;
                root.contactLoadType="news";
                var onlynew=true;
                //print("newstab "+ JSON.stringify(contactlist));
                Newsjs.getFriendsTimeline(login,db,contactlist,onlynew,newstab,function(ns,nc){
                    root.news=ns;root.newContacts=nc;
                    if (ns.length==0){// update last 20 existing news for changes and likes
                        onlynew=false;
                        Newsjs.getFriendsTimeline(login,db,contactlist,onlynew,newstab,function(rns,rnc){
                            root.contactLoadType="news";
                            root.news=rns;root.newContacts=rnc;})
                    }
                })
            }
        }

        }
        Component {  id:footerComponent
            Rectangle{
                border.color: "#EEEEEE"
                border.width: 1
                 width:newsView.width
                 height:6*mm
                 Text{
                     font.pixelSize: 1.5*mm
                     anchors.centerIn: parent
                     text:qsTr("More")
                 }
                 MouseArea{anchors.fill:parent
                     onClicked:{
                        var currentTime= new Date();
                        var lastnews_id=newsModel.get(newsModel.count-1).newsitemobject.created_at;
                         print("Lastnews ID "+lastnews_id+Qt.atob(newsModel.get(newsModel.count-1).newsitemobject.statusnet_html))
                        if(newstab.newstabstatus=="Timeline"){
                            Newsjs.newsfromdb(root.db,root.login.username, function(news){
                                var msg = {'currentTime': currentTime, 'model': newsModel,'news':news,'appendnews':true};
                                newsWorker.sendMessage(msg);
                            },false,lastnews_id)}
                        if(newstab.newstabstatus=="Conversations"){
                            Newsjs.chatsfromdb(root.db,root.login.username, function(news){
                                var msg = {'currentTime': currentTime, 'model': newsModel,'news':news,'appendnews':true};
                                newsWorker.sendMessage(msg);
                            },lastnews_id)}
                        else if(newstab.newstabstatus=="Contact"){
                            Newsjs.newsfromdb(root.db,root.login.username, function(news){
                                var msg = {'currentTime': currentTime, 'model': newsModel,'news':news,'appendnews':true};
                                newsWorker.sendMessage(msg);
                            },newsModel.get(newsModel.count-1).newsitemobject.uid,lastnews_id)}
                     }
                 }
             }
        }

        ListView {
          id: newsView
          anchors.fill: parent
          anchors.topMargin: 7*root.mm
          anchors.leftMargin: 3*root.mm; anchors.rightMargin: root.mm
          anchors.bottomMargin: 1*root.mm
          clip: true
          spacing: 0
          footer: footerComponent
          model: newsModel
          delegate: Newsitem{}
          //onContentYChanged:{if(contentY<-8*mm&&contentY>(-8*mm-1)){print("refreshing");
          onDragEnded:{if(contentY<-5*mm){//print("refreshing");
                  newsBusy.running=true;
                  newstab.newstabstatus=login.newsViewType;
                  root.contactLoadType="news";
                  var onlynew=true;
                  Newsjs.getFriendsTimeline(login,db,contactlist,onlynew,newstab,function(ns,nc){
                      root.news=ns;root.newContacts=nc;
                      if (ns.length==0){// update last 20 existing news for changes and likes
                          onlynew=false;
                          Newsjs.getFriendsTimeline(login,db,contactlist,onlynew,newstab,function(rns,rnc){
                              root.contactLoadType="news";
                              root.news=rns;root.newContacts=rnc;})
                      }
                  })
              }}
        }

       ListModel{id: newsModel}

       WorkerScript {
              id: newsWorker
              source: "qrc:/js/newsworker.js"
          }
       
       BusyIndicator{
         id: newsBusy
         anchors.horizontalCenter: newsView.horizontalCenter
         anchors.top:newsView.top
         anchors.topMargin: 2*mm
         width:10*mm
         height: 10*mm
       }
       Rectangle{
          id:downloadNotice
          property alias text: noticeText.text
          color:"white"
          border.color:"grey"
          z:1
          anchors.horizontalCenter: newsView.horizontalCenter
          anchors.bottom:newsView.bottom
          anchors.bottomMargin: 2*mm
          width: noticeText.width+2*mm
          height: noticeText.height+2*mm
          visible: (downloadNotice.text!="")
          
          Text{
              id:noticeText
              color: "grey"
              anchors.centerIn: parent
              width: contentWidth
              height: contentHeight
              font.pixelSize: 2*mm
              text:""
          }
       }
       Menu {
          id:newstabmenu
          MenuItem {
              text: qsTr("Timeline")
              onTriggered: {
                  newstab.newstabstatus="Timeline";
                  newsModel.clear();
                 try{ Newsjs.newsfromdb(root.db,root.login.username, function(dbnews){
                     showNews(dbnews)
                  })}catch(e){Helperjs.showMessage("Error",e,root)}}
              }
          MenuItem {
                text: qsTr("Favorites")
                onTriggered:{
                    newstab.newstabstatus="Favorites";
               root.contactLoadType="favorites";
                    newsBusy.running=true;
                    Newsjs.requestFavorites(root.login,db,root.contactlist,root,function(ns,nc){
                    root.news=ns; root.newContacts=nc;
                    })
                }
           }

           MenuItem {
                text: qsTr("Conversations")
                onTriggered:{
                    newsModel.clear();
                    newstab.newstabstatus="Conversations";
                    Newsjs.chatsfromdb(db,root.login.username,function(news){showNews(news)})
                }
           }
           MenuItem {
                text: qsTr("Notifications")
                onTriggered:{
                    newstab.newstabstatus="Notifications";
                    newsBusy.running=true;
                    Newsjs.getNotifications(root.login,db,root,function(news){
                        showNews(news)}
                    )}
          }
        }
        Component.onCompleted: {
           root.messageSignal.connect(onFriendsMessages);
           root.directmessageSignal.connect(onDirectMessage);
           root.newsSignal.connect(showNews);
           try{newsModel.clear()} catch(e){}
          if(root.news.length>0){showNews(root.news)}
           else{ newstab.newstabstatus=login.newsViewType;
           if(login.newsViewType=="Timeline"){Newsjs.newsfromdb(db,login.username,function(dbnews){showNews(dbnews)})}
           else{Newsjs.chatsfromdb(db,login.username,function(dbnews){showNews(dbnews)})}
        }
    }}
  }
}