//  This file is part of Friendiqa
//  https://git.friendi.ca/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/>.

#include "updatenews.h"

#include <QHttpPart>
#include <QTextCodec>
#include <QUrlQuery>
#include <QList>
#include <QDataStream>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <QQmlEngine>
#include <QSqlQuery>
#include <QSqlRecord>
#include <QSqlDatabase>
#include <QSqlError>
#include <QDateTime>
//#include "xhr.h"


UPDATENEWS *UPDATENEWS::instance()
{
    static UPDATENEWS udn;
    return &udn;
}

UPDATENEWS::UPDATENEWS(QObject *parent) : QObject(parent)
{

}

void UPDATENEWS::setUrl(QString url)
{
   if (url!=m_url) {
       m_url = url;
       xhr.setUrl(url);
       emit urlChanged(m_url);
   }
}


void UPDATENEWS::setDatabase()
{
    static QQmlEngine qe;
    QString db_url=qe.offlineStorageDatabaseFilePath("Friendiqa");
    m_db = QSqlDatabase::addDatabase("QSQLITE");
    m_db.setDatabaseName(QUrl("file://"+db_url+".sqlite").toLocalFile());
    qDebug() << db_url;

      if (!m_db.open())
      {
         qDebug() << "Error: connection with database fail " << m_db.lastError();
      }
      else
      {
         qDebug() << "Database: connection ok";
      }
}


void UPDATENEWS::login()
{
    QSqlQuery query("SELECT * FROM config WHERE isActive=0",m_db);
    while (query.next())
    {
       username = query.value(1).toString();
       QByteArray bpassword=query.value(2).toByteArray();
       QString password=QByteArray::fromBase64(bpassword);
       m_login=username+":"+password ;
       xhr.setLogin(m_login);
       m_url=query.value(0).toString();
       xhr.setUrl(m_url);
       m_imagedir=query.value(3).toString();
       xhr.setImagedir(m_imagedir);
       QString isActive=query.value(7).toString();
       updateInterval=query.value(5).toInt();
      //UPDATENEWS::connect(&UPDATENEWS::getLogin,SIGNAL(loginChanged(QString)),this,SLOT(XHR::login(QString)));
       
       m_api="/api/statuses/friends_timeline";
       xhr.setApi(m_api);
       if(updateInterval!=0){alarm.setAlarm(updateInterval);};
    }
}


void UPDATENEWS::timeline()
{
    QSqlQuery query("SELECT status_id FROM news WHERE username='"+ username +"' ORDER BY status_id DESC LIMIT 1",m_db);
    if (query.isActive() && query.isSelect()){query.first();};
    QString lastid=query.value(0).toString();
    xhr.clearParams();
    xhr.setParam("since_id",lastid);
    xhr.setParam("count","50");
    xhr.get();
    QObject::connect(&xhr,SIGNAL(success(QByteArray,QString)),this,SLOT(store(QByteArray,QString)));
    QObject::connect(&xhr,SIGNAL(error(QString,QString,QString,int)),this,SLOT(showError(QString,QString,QString,int)));
}

void UPDATENEWS::store(QByteArray serverreply,QString apiname)
{
    QJsonDocument news;
    QJsonParseError jsonerror;
    news=QJsonDocument::fromJson(serverreply,&jsonerror);
    if (news.isArray()){
        for (int i=0; i < news.array().count();i++){
            QJsonValue newsitem=news[i];
            QSqlQuery query(m_db);
            query.prepare("INSERT INTO news (username,messagetype,text,created_at,in_reply_to_status_id,source,status_id,in_reply_to_user_id,geo,favorited,uid,statusnet_html,statusnet_conversation_id,friendica_activities,friendica_activities_self,attachments,friendica_owner) " "VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
            query.bindValue(0,username);
            query.bindValue(1,"0");
            query.bindValue(2, newsitem["text"].toString().toUtf8().toBase64());
            QString sourcedate=newsitem["created_at"].toString();
            QString formateddate=sourcedate.mid(0,3)+", "+sourcedate.mid(8,3)+sourcedate.mid(4,3)+sourcedate.mid(25,5)+sourcedate.mid(10,15);
            query.bindValue(3,QDateTime::fromString(formateddate,Qt::RFC2822Date).toMSecsSinceEpoch() );
            if(newsitem["in_reply_to_status_id"]!=QJsonValue::Null){query.bindValue(4, newsitem["in_reply_to_status_id"].toInt());};
            query.bindValue(5,newsitem["source"]);
            query.bindValue(6,newsitem["id"].toInt());
            if(newsitem["in_reply_to_user_id"]!=QJsonValue::Null){ query.bindValue(7,newsitem["in_reply_to_user_id"].toInt());};
            query.bindValue(8,newsitem["geo"]);
            query.bindValue( 9, newsitem["favorited"].toInt());
            query.bindValue(10, newsitem["user"]["id"].toInt());
            query.bindValue(11, newsitem["statusnet_html"].toString().toUtf8().toBase64());
            query.bindValue(12, newsitem["statusnet_conversation_id"].toInt());
            QJsonArray likeArray;QJsonArray dislikeArray;QJsonArray attendyesArray;QJsonArray attendnoArray;QJsonArray attendmaybeArray;
            if (newsitem.toObject().contains("friendica_activities")){
                for (int a=0; a < newsitem["friendica_activities"]["like"].toArray().count();a++){
                    likeArray.append(newsitem["friendica_activities"]["like"][a]["url"].toString());
                }
                for (int b=0; b < newsitem["friendica_activities"]["dislike"].toArray().count();b++){
                    dislikeArray.append(newsitem["friendica_activities"]["dislike"][b]["url"].toString());
                }
                for (int c=0; c < newsitem["friendica_activities"]["attendyes"].toArray().count();c++){
                    attendyesArray.append(newsitem["friendica_activities"]["attendyes"][c]["url"].toString());
                }
                for (int d=0; d < newsitem["friendica_activities"]["attendno"].toArray().count();d++){
                    attendnoArray.append(newsitem["friendica_activities"]["attendno"][d]["url"].toString());
                }
                for (int e = 0; e < newsitem["friendica_activities"]["attendmaybe"].toArray().count();e++){
                    attendmaybeArray.append(newsitem["friendica_activities"]["attendmaybe"][e]["url"].toString());
                }
             };
            QJsonArray friendica_activities; friendica_activities={likeArray,dislikeArray,attendyesArray,attendnoArray,attendmaybeArray};
            QJsonDocument activities; activities.setArray(friendica_activities);
            query.bindValue(13,activities.toJson(QJsonDocument::Compact).toBase64());
            query.bindValue(14,"[]");

            if (newsitem["attachments"]!=QJsonValue::Undefined){
                query.bindValue(15, QJsonDocument(newsitem["attachments"].toArray()).toJson(QJsonDocument::Compact).toBase64());
            };

            query.bindValue(16, newsitem["friendica_owner"]["url"]);
            query.exec() ;
        }
    }
    else {emit this->error(m_api,QTextCodec::codecForName("utf-8")->toUnicode(serverreply));}
    QList<QJsonValue> newcontacts=findNewContacts(news);
    updateContacts(newcontacts);
    startImagedownload();
    connect(&xhr, SIGNAL(downloaded(QString, QString, QString, int)), this, SLOT(updateImageLocation(QString,QString, QString, int)));

}

void UPDATENEWS::updateImageLocation(QString downloadtype,QString imageurl, QString filename, int index){
    if (downloadtype=="contactlist"){
        QSqlQuery query("UPDATE contacts SET imageLocation='"+ filename +"' WHERE imageurl ='"+imageurl+ "' AND username = '" +username+"'",m_db);
        query.exec();
    }
}

QList <QJsonValue> UPDATENEWS::findNewContacts(QJsonDocument news){
    QSqlQuery query("SELECT profile_image_url FROM contacts",m_db);
    QList<QString> imageurls;
    while (query.next()){
        imageurls.append(query.value(0).toString());
    }
    QList<QJsonValue> newcontacts;
    //qDebug()<<news.array().count();

    for (int i=0; i<news.array().count();i++){
        //main contacts
        if(imageurls.contains(news[i]["user"]["profile_image_url"].toString()) || newcontactimagelinks.contains(news[i]["user"]["profile_image_url"].toString())){
            }
        else{
            newcontacts.append(news[i]["user"]);
            newcontactimagelinks.append(news[i]["user"]["profile_image_url"].toString());
            newcontactnames.append(news[i]["user"]["screen_name"].toString());
        }
        //like/dislike contacts
        if (news[i].toObject().contains("friendica_activities") ){
            for (int a=0; a < news[i]["friendica_activities"]["like"].toArray().count();a++){
                if(imageurls.contains(news[i]["friendica_activities"]["like"][a]["profile_image_url"].toString()) || newcontactimagelinks.contains(news[i]["friendica_activities"]["like"][a]["profile_image_url"].toString())){
                    }
                else{
                    newcontacts.append(news[i]["friendica_activities"]["like"][a]);
                    newcontactimagelinks.append(news[i]["friendica_activities"]["like"][a]["profile_image_url"].toString());
                    newcontactnames.append(news[i]["friendica_activities"][a]["screen_name"].toString());
                }
            }
            for (int b=0; b < news[i]["friendica_activities"]["dislike"].toArray().count();b++){
                if(imageurls.contains(news[i]["friendica_activities"]["dislike"][b]["profile_image_url"].toString()) || newcontactimagelinks.contains(news[i]["friendica_activities"]["dislike"][b]["profile_image_url"].toString())){
                    }
                else{
                    newcontacts.append(news[i]["friendica_activities"]["dislike"][b]);
                    newcontactimagelinks.append(news[i]["friendica_activities"]["dislike"][b]["profile_image_url"].toString());
                    newcontactnames.append(news[i]["friendica_activities"][b]["screen_name"].toString());
                }
            }
        }
        //owner contacts
        if (news[i].toObject().contains("friendica_owner") ){
            if(imageurls.contains(news[i]["friendica_owner"]["profile_image_url"].toString()) || newcontactimagelinks.contains(news[i]["friendica_owner"]["profile_image_url"].toString())){
                }
            else{
                newcontacts.append(news[i]["friendica_owner"]);
                newcontactimagelinks.append(news[i]["friendica_owner"]["profile_image_url"].toString());
                newcontactnames.append(news[i]["friendica_owner"]["screen_name"].toString());
            }
          }
    }
    return newcontacts;
}


void UPDATENEWS::updateContacts(QList<QJsonValue> contacts){
    qint64 currentTime =QDateTime::currentMSecsSinceEpoch();
    for (int i=0; i < contacts.count();i++){
        QJsonValue contact=contacts[i];
        QSqlQuery query(m_db);
        qDebug() << "updatecontact " << contact["screen_name"];
        QSqlQuery testquery("SELECT url FROM contacts WHERE username='"+ username +"' AND url='" + contact["url"].toString() +"'",m_db);
        if (testquery.first()){
            query.prepare("UPDATE contacts SET id=?, name=?, screen_name=?, location=?,imageAge=?,"
                      "profile_image_url=?, description=?, protected=?, followers_count=?,"
                      "friends_count=?, created_at=?, favourites_count=?, utc_offset=?, time_zone=?, statuses_count=?,"
                      "following=?, verified=?, statusnet_blocking=?, notifications=?, statusnet_profile_url=?, cid=?, network=?, timestamp=? "
                      " WHERE username='"+ username +"' AND url='" + contact["url"].toString() +"'");
            query.bindValue(0, contact["id"].toInt());
            query.bindValue(1, contact["name"].toString().toUtf8().toBase64());
            query.bindValue(2, contact["screen_name"]);
            query.bindValue(3, contact["location"]);
            query.bindValue(4, currentTime);
            query.bindValue(5, contact["profile_image_url"]);
            if(contact["description"].isNull() ){query.bindValue(6,"");}else{query.bindValue(6, contact["description"].toString().toUtf8().toBase64());};
            query.bindValue(7,contact["protected"].toBool());
            query.bindValue(8,contact["followers_count"].toInt());
            query.bindValue(9,contact["friends_count"].toInt());
            QString sourcedate=contact["created_at"].toString();
            QString formateddate=sourcedate.mid(0,3)+", "+sourcedate.mid(8,3)+sourcedate.mid(4,3)+sourcedate.mid(25,5)+sourcedate.mid(10,15);
            query.bindValue(10,QDateTime::fromString(formateddate,Qt::RFC2822Date).toMSecsSinceEpoch() );
            query.bindValue(11,contact["favorites_count"].toInt());
            query.bindValue(12,contact["utc_offset"].toInt());
            query.bindValue(13,contact["time_zone"].toString());
            query.bindValue(14,contact["statuses_count"].toInt());
            query.bindValue(15,contact["following"].toBool());
            query.bindValue(16,contact["verfied"].toBool());
            query.bindValue(17,contact["statusnet_blocking"].toBool());
            query.bindValue(18,contact["notifications"].toBool());
            query.bindValue(19,contact["statusnet_profile_url"]);
            query.bindValue(20,contact["cid"].toInt());
            query.bindValue(21,contact["network"]);
            qint64 timestamp=0;
            QString timestamphelper=contact["profile_image_url"].toString();
            try {timestamp=timestamphelper.mid(timestamphelper.indexOf("?ts")+4,timestamphelper.length()).toUInt();} catch(...){};
            query.bindValue(22,timestamp);
        }

        else{
            query.prepare("INSERT INTO contacts (username, id, name, screen_name, location,imageAge,"
                      "profile_image_url, description, profile_image, url, protected, followers_count,"
                      "friends_count, created_at, favourites_count, utc_offset, time_zone, statuses_count,"
                      "following, verified, statusnet_blocking, notifications, statusnet_profile_url, cid, network, isFriend, timestamp)"
                      "VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)");

            query.bindValue(0,username);
            query.bindValue(1, contact["id"].toInt());
            query.bindValue(2, contact["name"].toString().toUtf8().toBase64());
            query.bindValue(3, contact["screen_name"]);
            query.bindValue(4, contact["location"]);
            query.bindValue(5, currentTime);
            query.bindValue(6, contact["profile_image_url"]);
            if(contact["description"].isNull() ){query.bindValue(7,"");}else{query.bindValue(7, contact["description"].toString().toUtf8().toBase64());};
            query.bindValue(8,"none");
            query.bindValue(9, contact["url"].toString());
            query.bindValue(10,contact["protected"].toBool());
            query.bindValue(11,contact["followers_count"].toInt());
            query.bindValue(12,contact["friends_count"].toInt());
            QString sourcedate=contact["created_at"].toString();
            QString formateddate=sourcedate.mid(0,3)+", "+sourcedate.mid(8,3)+sourcedate.mid(4,3)+sourcedate.mid(25,5)+sourcedate.mid(10,15);
            query.bindValue(13,QDateTime::fromString(formateddate,Qt::RFC2822Date).toMSecsSinceEpoch() );
            query.bindValue(14,contact["favorites_count"].toInt());
            query.bindValue(15,contact["utc_offset"].toInt());
            query.bindValue(16,contact["time_zone"].toString());
            query.bindValue(17,contact["statuses_count"].toInt());
            query.bindValue(18,contact["following"].toBool());
            query.bindValue(19,contact["verfied"].toBool());
            query.bindValue(20,contact["statusnet_blocking"].toBool());
            query.bindValue(21,contact["notifications"].toBool());
            query.bindValue(22,contact["statusnet_profile_url"]);
            query.bindValue(23,contact["cid"].toInt());
            query.bindValue(24,contact["network"]);
            query.bindValue(25, 0);
            qint64 timestamp=0;
            QString timestamphelper=contact["profile_image_url"].toString();
            try {timestamp=timestamphelper.mid(timestamphelper.indexOf("?ts")+4,timestamphelper.length()).toUInt();} catch(...){};
            query.bindValue(26,timestamp);

        }
    }
        emit this->success(m_api);
}

QString UPDATENEWS::url() const
{
    return m_url;
}

void UPDATENEWS::startImagedownload()
{
    xhr.setDownloadtype("contactlist");
    xhr.setFilelist(newcontactimagelinks);
    xhr.setContactlist(newcontactnames);
    xhr.setImagedir(m_imagedir);
    xhr.getlist();
}

void UPDATENEWS::showError(QString data, QString url,QString api, int code )
{
    emit this->error(api,data);
}