.pragma library
.import QtQuick.LocalStorage 2.0 as Sql
.import "qrc:/js/helper.js" as Helperjs

function requestFriends(login,database,rootwindow,callback){
//    return array of friends
   Helperjs.friendicaRequest(login,"/api/statuses/friends", rootwindow,function (obj){
       var friends=JSON.parse(obj);
          for (var i=0;i<friends.length;i++){ friends[i].isFriend=1}
       callback(friends)
});
}

function requestGroups(login,database,rootwindow,callback){
   // retrieve, save and return groups, currently not implemented
    var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
    Helperjs.friendicaRequest(login,"/api/friendica/group_show",rootwindow, function (obj){
       var groups=JSON.parse(obj);
       for (var i=0;i<groups.length;i++){
           var memberarray=[]; for (var user in groups[i].user){memberarray.push(parseInt(groups[i].user[user].id))}
          //print("Members: "+groups[i].user)
          //updateGroupInDB(login,database,groups[i])
           db.transaction( function(tx) {
             var result = tx.executeSql('SELECT * from groups where username="'+login.username+'" AND gid = "'+groups[i].gid+'"'); // check for group id
             if(result.rows.length === 1) {// use update
                print(groups[i].gid +' exists, update it')
                result = tx.executeSql('UPDATE groups SET username="'+login.username+'",  groupname="'+groups[i].name+'", members="'+JSON.stringify(memberarray)+'"');
            } else {// use insert
                result = tx.executeSql('INSERT INTO groups VALUES (?,?,?,?)', [login.username,groups[i].name,groups[i].gid,JSON.stringify(memberarray)])}
            });
        }
   //Helperjs.readData(database,"groups",login.username,callback)
    callback()
});}

function getFriendsTimeline(login,database,contacts,rootwindow,callback){// retrieve and return timeline since last news, return contacts which are not friends for update (friends can be updated in Friendstab)
    var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
    var parameter = "";
    db.transaction( function(tx) {
        var result = tx.executeSql('SELECT status_id from news WHERE username="'+login.username+'" ORDER BY status_id  DESC LIMIT 1'); // check for last news id
        try{parameter="&since_id="+result.rows.item(0).status_id;}catch(e){};})
        var newContacts=[];
        //print(JSON.stringify("Contacts "+contacts));
        Helperjs.friendicaRequest(login,"/api/statuses/friends_timeline"+parameter, rootwindow,function (obj){
            var news=JSON.parse(obj);
            var newContacts=findNewContacts(news,contacts);
            callback(news,newContacts)
})}

function findNewContacts(news,contacts){
    var newContacts=[];
    for (var i=0;i<news.length;i++){
        if(contacts.indexOf(news[i].user.id)==-1 &&  !(inArray(newContacts,"id",news[i].user.id))){
            news[i].user.isFriend=0;
            newContacts.push(news[i].user);
            }
        if (news[i].friendica_activities.like.length>0){
                    // print("Like Contact"+JSON.stringify(news[i].friendica_activities.like));
            for (var j=0;j<news[i].friendica_activities.like.length;j++){
                if(contacts.indexOf(news[i].friendica_activities.like[j].id)==-1 &&  !(inArray(newContacts,"id",news[i].friendica_activities.like[j].id))){
                    news[i].friendica_activities.like[j].isFriend=0;
                    newContacts.push(news[i].friendica_activities.like[j]);
                    }
                }
            }
            if (news[i].friendica_activities.dislike.length>0){
            //print("DisLike Contact"+JSON.stringify(news[i].friendica_activities.dislike));
                for (var k=0;j<news[k].friendica_activities.dislike.length;k++){
                    if(contacts.indexOf(news[i].friendica_activities.dislike[k].id)==-1 &&  !(inArray(newContacts,"id",news[i].friendica_activties.dislike[k].id))){
                        news[i].friendica_activities.dislike[k].isFriend=0;
                        newContacts.push(news[i].friendica_activities.dislike[k]);
                    }
                }
            }
    }
    return newContacts
}

function storeNews(login,database,news,rootwindow,callback){
// save news after contacts download, call next function
    var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
    for (var i=0;i<news.length;i++){
        //print('store news data for ' + news[i].id+JSON.stringify(news[i].friendica_activities));
        var ausdruck=news[i];
        var likearray=[]; for (var user in news[i].friendica_activities.like){likearray.push(parseInt(news[i].friendica_activities.like[user].id))}
        var dislikearray=[]; for (var user in news[i].friendica_activities.dislike){parseInt(news[i].friendica_activities.dislike[user].id)}
        var attendyesarray=[]; for (var user in news[i].friendica_activities.attendyes){attendyesarray.push(parseInt(news[i].friendica_activities.attendyes[user].id))}
        var attendnoarray=[]; for (var user in news[i].friendica_activities.attendno){attendnoarray.push(parseInt(news[i].friendica_activities.attendno[user].id))}
        var attendmaybearray=[]; for (var user in news[i].friendica_activities.attendmaybe){attendmaybearray.push(parseInt(news[i].friendica_activities.attendmaybe[user].id))}
        var friendica_activities=[likearray,dislikearray,attendyesarray,attendnoarray,attendmaybearray]
        db.transaction( function(tx) {
            var result = tx.executeSql('SELECT * from news where username="'+login.username+'" AND status_id = "'+news[i].id+'" AND messagetype=0'); // check for news id
            if(result.rows.length === 1) {// use update
                print(news[i].id +' exists, update it')
                result = tx.executeSql('UPDATE news SET username="'+login.username+'", messagetype=0, text="'+Qt.btoa(news[i].text)+'", created_at="'+Date.parse(cleanDate(news[i].created_at))+'", in_reply_to_status_id="'+news[i].in_reply_to_status_id+'", source="'+news[i].source+'", status_id="'+news[i].id+'", in_reply_to_user_id="'+news[i].in_reply_to_user_id+'", geo="'+news[i].geo+'", favorited="'+news[i].favorited+'", uid="'+news[i].user.id+'", statusnet_html="'+Qt.btoa(news[i].status_html)+'", statusnet_conversation_id="'+news[i].statusnet_conversation_id+'",friendica_activities="'+JSON.stringify(friendica_activities)+'" where username="'+login.username+'" AND status_id="'+news[i].status_id+'" AND messagetype=0');
            } else {// use insert
                result = tx.executeSql('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) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)', [login.username,0,Qt.btoa(news[i].text),Date.parse(cleanDate(news[i].created_at)), news[i].in_reply_to_status_id, news[i].source, news[i].id,news[i].in_reply_to_user_id,news[i].geo,news[i].favorited, news[i].user.id,Qt.btoa(news[i].statusnet_html),news[i].statusnet_conversation_id, JSON.stringify(friendica_activities),"[]"])}})
            }
    getDirectMessage(login,database,rootwindow,callback)
}

function getDirectMessage(login,database,rootwindow,callback){
    var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
    Helperjs.friendicaRequest(login,"/api/direct_messages/all",rootwindow, function (obj){
        var messages=JSON.parse(obj);
       for (var i=0;i<messages.length;i++){
           //print('store message data for '+JSON.stringify(messages[i]));
            db.transaction( function(tx) {
             var result = tx.executeSql('SELECT * from news where username= "'+login.username+'" AND status_id = "'+messages[i].id+'" AND messagetype=1'); // check for news id
             if(result.rows.length === 1) {// use update
                print(messages[i].id +' exists, update it')
                result = tx.executeSql('UPDATE news SET username="'+login.username+'", messagetype=1, text="'+Qt.btoa(messages[i].text)+'", created_at="'+Date.parse(cleanDate(messages[i].created_at))+'", source="Friendica", status_id="'+messages[i].id+'", uid="'+messages[i].sender.id+'", statusnet_html="'+Qt.btoa(messages[i].text)+'" where username="'+login.username+'" AND status_id="'+messages[i].status_id+'" AND messagetype=1');
            } else {// use insert
                result = tx.executeSql('INSERT INTO news (username,messagetype,text,created_at,source,status_id,uid,statusnet_html) VALUES (?,?,?,?,?,?,?,?)', [login.username,1,Qt.btoa(messages[i].text),Date.parse(cleanDate(messages[i].created_at)), "Friendica", messages[i].id, messages[i].sender.id,Qt.btoa(messages[i].text)])}
            });
       }
   })
    getNotifications(login,database,rootwindow,callback)
}

function getNotifications(login,database,rootwindow,callback){
   Helperjs.friendicaRequest(login,"/api/friendica/notifications", rootwindow,function (obj){
        var messages=JSON.parse(obj);
       for (var i=0;i<messages.length;i++){
           var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
            //print('store message data for '+JSON.stringify(messages[i]));
            db.transaction( function(tx) {
             var result = tx.executeSql('SELECT * from news where username="'+login.username+'" AND status_id = "'+messages[i].id+'" AND messagetype=2'); // check for news id
             if(result.rows.length === 1) {// use update
                print(messages[i].id +' exists, update it')
                result = tx.executeSql('UPDATE news SET username="'+login.username+'", messagetype=2, text="'+Qt.btoa(messages[i].msg_html)+'", created_at="'+Date.parse(messages[i].date)+'", source="Friendica", status_id="'+messages[i].id+'", uid="'+messages[i].uid+'", statusnet_html="'+Qt.btoa(messages[i].msg_html)+'", statusnet_conversation_id="'+messages[i].parent+'" where username="'+login.username+'" AND status_id="'+messages[i].id+'" AND messagetype=2');
            } else {// use insert
                result = tx.executeSql('INSERT INTO news (username,messagetype,text,created_at,source,status_id, uid,statusnet_html,statusnet_conversation_id) VALUES (?,?,?,?,?,?,?,?,?)', [login.username,2,Qt.btoa(messages[i].msg_html),Date.parse(messages[i].date),"Friendica", messages[i].id, messages[i].uid,Qt.btoa(messages[i].msg_html),messages[i].parent])}
             });
       }
   })
   newsfromdb(database,login.username,callback)
}

function getActivitiesUserData(database,username,useridArray){
    var helpArray=[];
    for (var i=0;i<useridArray.length;i++){
        Helperjs.readData(database,"contacts",username,function(userdata){
            helpArray.push(userdata[0]);
        },"id",useridArray[i]);
    }
    return helpArray
}

function newsfromdb(database,username,callback,contact,stop_time){
// return news before stop_time (used by More button), in brackets of 20 entries, or by specified contact
var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
db.transaction( function(tx) {
    if (!stop_time){var stop="";
        try{var rs = tx.executeSql('select created_at from news WHERE username="'+username+'" ORDER BY created_at DESC LIMIT 1');
        stop="<="+rs.rows.item(0).created_at}catch(e){stop="<99999999999999"}}
    else{var stop="<"+stop_time}
    var contactfilter="";if(contact){contactfilter=" AND uid='"+contact+"'"}
    print('select * from news WHERE username="'+username+'" AND created_at'+stop+contactfilter+' ORDER BY created_at DESC LIMIT 20');
    var newsrs=tx.executeSql('select * from news WHERE username="'+username+'" AND created_at'+stop+contactfilter+' ORDER BY created_at DESC LIMIT 20');
    var newsArray=[];
    for(var i = 0; i < newsrs.rows.length; i++) {
        newsArray.push(newsrs.rows.item(i));
        Helperjs.readData(database,"contacts",username,function(userdata){
            newsArray[i].user=userdata[0];
        },"id",newsArray[i].uid);
        if(newsArray[i].in_reply_to_user_id){
            Helperjs.readData(database,"contacts",username,function(replytodata){
            newsArray[i].reply_user=replytodata[0];
            },"id",newsArray[i].in_reply_to_user_id);
         }
        if (newsArray[i].messagetype==0){
            for(var j=0;j<newsArray[i].friendica_activities.length;j++)
                {var friendicaArray=JSON.parse(newsArray[i].friendica_activities);
               // print("Array: "+friendicaArray[1]);
                newsArray[i].like=getActivitiesUserData(database,username,friendicaArray[0]);
                newsArray[i].dislike=getActivitiesUserData(database,username,friendicaArray[1]);
                newsArray[i].attendyes=getActivitiesUserData(database,username,friendicaArray[2]);
                newsArray[i].attendno=getActivitiesUserData(database,username,friendicaArray[3]);
                newsArray[i].attendmaybe=getActivitiesUserData(database,username,friendicaArray[4]);
                }
        }
    }
  callback(newsArray)});
}

function fetchUsersForNews(database,username,news){
    Helperjs.readData(database,"contacts",username,function(userdata){
            news.user=userdata[0];
            //print("Fetch user"+JSON.stringify(news.user));
        },"id",news.uid);
        if(news.in_reply_to_user_id){
            Helperjs.readData(database,"contacts",username,function(replytodata){
            news.reply_user=replytodata[0];
            //print("Fetch reply to"+JSON.stringify(news.reply_user));
            },"id",news.in_reply_to_user_id);
         }
        if (news.messagetype==0){
            for(var j=0;j<news.friendica_activities.length;j++)
                {var friendicaArray=JSON.parse(news.friendica_activities);
               // print("Array: "+friendicaArray[1]);
                news.like=getActivitiesUserData(database,username,friendicaArray[0]);
                news.dislike=getActivitiesUserData(database,username,friendicaArray[1]);
                news.attendyes=getActivitiesUserData(database,username,friendicaArray[2]);
                news.attendno=getActivitiesUserData(database,username,friendicaArray[3]);
                news.attendmaybe=getActivitiesUserData(database,username,friendicaArray[4]);
                }
        }
  return news
}

function deleteNews(login,database,newsid,messagetype,rootwindow,callback){
   var api="" ;
   if (messagetype==0){ api="/api/statuses/destroy?id="}
   else if (messagetype==1){ api="/api/direct_messages/destroy?id="}
else if (messagetype==2){ api="/api/friendica/notifications/seen?id="}

Helperjs.friendicaPostRequest(login,api+newsid, rootwindow,function (obj){
        print("Delete "+obj);
        var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
        print('delete news data for ' + newsid);
         db.transaction( function(tx) {var result = tx.executeSql('DELETE from news where username="'+login.username+'" AND messagetype='+messagetype+' AND status_id ='+newsid); // delete news id
            Helperjs.showMessage("Delete",obj,rootwindow);
             callback(obj)
   });
})}

function retweetNews(login,database,newsid,rootwindow,callback){
   Helperjs.friendicaRequest(login,"/api/statuses/retweet?id="+newsid, rootwindow,function (obj){
        var answer=JSON.parse(obj);
        Helperjs.showMessage("Repost",answer,rootwindow);
   })}

function favorite(login,favorite,newsid,rootwindow){
// toggle favorites 
 if(favorite){  Helperjs.friendicaPostRequest(login,"/api/favorites/create?id="+newsid, rootwindow,function (obj){
        print("Favorite "+obj);
   })}
    else {Helperjs.friendicaPostRequest(login,"/api/favorites/destroy?id="+newsid, rootwindow,function (obj){
        print("Favorite destroyed "+obj);
   })}
}

function  likerequest(login,database,verb,newsid,rootwindow){
    Helperjs.friendicaPostRequest(login,"/api/friendica/activity/"+verb+"?id="+newsid, rootwindow,function (obj){
         if (obj=='"ok"'){
            var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
            db.transaction( function(tx) {
                var currentActivities_rs=tx.executeSql('select friendica_activities_self from news WHERE username="'+login.username+'" AND status_id='+newsid) ;
                var currentActivities=JSON.parse(currentActivities_rs.rows.item(0).friendica_activities_self);
                //print("currentActivities "+JSON.stringify(currentActivities));
                if ((verb=="like")&&(currentActivities.indexOf(1)==-1)){ currentActivities.push(1);
                    currentActivities.splice(currentActivities.indexOf(2),1)
                }
                if ((verb=="dislike")&&(currentActivities.indexOf(2)==-1)){ currentActivities.push(2);
                    currentActivities.splice(currentActivities.indexOf(1),1)
                }
                if (verb=="unlike"){ try{currentActivities.splice(currentActivities.indexOf(1),1)}catch(e){}}
                if (verb=="undislike"){ try{currentActivities.splice(currentActivities.indexOf(2),1)}catch(e){}}
                var result = tx.executeSql('UPDATE news SET friendica_activities_self ="'+JSON.stringify(currentActivities)+'" where username="'+login.username+'" AND status_id ='+newsid);
   })}
    else{print("likerequest"+obj)}})
}

function like(login,database,toggle,verb,newsid,rootwindow){
    if(verb=="like"&& toggle==1){likerequest(login,database,"like",newsid,rootwindow);
    }
    if(verb=="dislike"&& toggle==1){likerequest(login,database,"dislike",newsid,rootwindow);
    }
    if(toggle==0){
         likerequest(login,database,"un"+verb,newsid,rootwindow);}
}

function attend(login,database,attend,newsid,rootwindow,callback){
    Helperjs.friendicaPostRequest(login,"/api/friendica/activity/attend"+attend+"?id="+newsid, rootwindow,function (obj){
    var attendReturn=JSON.parse(obj);
 //           print("attend: "+obj);
    if (attendReturn=="OK")
        {var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
        db.transaction( function(tx) {
            var currentActivities_rs=tx.executeSql('select friendica_activities_self from news WHERE username="'+login.username+'" AND status_id='+newsid) ;
            var currentActivities=JSON.parse(currentActivities_rs.rows.item(0));
            print("currentActivities "+JSON.stringify(currentActivities));
            if ((attend=="attendyes")&&(currentActivities.indexOf(3)==-1)){
                currentActivities.push(3);
                currentActivities.splice(currentActivities.indexOf(4),1)
                currentActivities.splice(currentActivities.indexOf(5),1)
             }
             if ((attend=="attendno")&&(currentActivities.indexOf(4)==-1)){
                currentActivities.push(4);
                currentActivities.splice(currentActivities.indexOf(3),1)
                currentActivities.splice(currentActivities.indexOf(5),1)
             }
             if ((attend=="attendmaybe")&&(currentActivities.indexOf(5)==-1)){
                currentActivities.push(5);
                currentActivities.splice(currentActivities.indexOf(3),1)
                currentActivities.splice(currentActivities.indexOf(4),1)
             }
             var result = tx.executeSql('UPDATE news SET friendica_activities_self ="'+JSON.stringify(currentActivities)+'" where username="'+login.username+'" AND status_id ='+newsid);
             callback();
 })}})}

function requestConversation(login,database,newsid,contacts,rootwindow,callback){
    Helperjs.friendicaRequest(login,"/api/conversation/show?id="+newsid,rootwindow, function (obj){
       var news=JSON.parse(obj);
       var newContacts=findNewContacts(news,contacts);
      // storeNews(login,database,news,rootwindow,callback)
      callback(news,newContacts)
})}

function conversationfromdb(database,user,conversationId,callback){
    var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
    db.transaction( function(tx) {
    print('select * from news WHERE statusnet_conversation_id='+conversationId+' ORDER BY status_id DESC');
     var newsrs=tx.executeSql('select * from news WHERE username="'+user+'" AND statusnet_conversation_id='+conversationId+' ORDER BY status_id DESC');
    var newsArray=[];
    for(var i = 0; i < newsrs.rows.length; i++) {
        newsArray.push(newsrs.rows.item(i));
      newsArray[i]=fetchUsersForNews(database,user,newsArray[i]);
     callback(newsArray);
 }})}

function requestFavorites(login,database,rootwindow,callback){
    Helperjs.friendicaRequest(login,"/api/favorites",rootwindow, function (obj){
   //print(obj+JSON.stringify(obj));
       var news=JSON.parse(obj);
      // storeNews(login,database,news,rootwindow,callback)
      callback(news)
})}

function favoritesfromdb(database,user,callback){
    var db=Sql.LocalStorage.openDatabaseSync(database[0],database[1],database[2],database[3]);
    db.transaction( function(tx) {
        print('select * from news WHERE username="'+user+'" AND favorited=1 ORDER BY status_id DESC');
        var newsrs=tx.executeSql('select * from news WHERE username="'+user+'" AND favorited=1 ORDER BY status_id DESC');
        var newsArray=[];
        for(var i = 0; i < newsrs.rows.length; i++) {
            newsArray.push(newsrs.rows.item(i));
            newsArray[i]=fetchUsersForNews(database,user,newsArray[i]);
            callback(newsArray);
 }})}


function inArray(list, prop, val) {
    if (list.length > 0 ) {
        for (var i in list) { if (list[i][prop] === val) {
                return true;
            }
        }
    } return false;
}

function cleanDate(date){
var cleanedDate= date.slice(0,3)+", "+date.slice(8,11)+date.slice(4,7)+date.slice(25,30)+date.slice(10,25);
return cleanedDate
}