space-ios/iOSClient/Favorites/NCFavorite.swift

//
//  NCFavorite.swift
//  Nextcloud
//
//  Created by Marino Faggiana on 26/08/2020.
//  Copyright © 2020 Marino Faggiana. All rights reserved.
//
//  Author Marino Faggiana <marino.faggiana@nextcloud.com>
//
//  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.
//
//  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 Foundation
import NCCommunication

class NCFavorite: NCCollectionViewCommon  {
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        
        appDelegate.activeFavorite = self
        titleCurrentFolder = NSLocalizedString("_favorites_", comment: "")
        layoutKey = NCBrandGlobal.shared.layoutViewFavorite
        enableSearchBar = true
        emptyImage = CCGraphics.changeThemingColorImage(UIImage.init(named: "favorite"), width: 300, height: 300, color: NCBrandColor.shared.yellowFavorite)
        emptyTitle = "_favorite_no_files_"
        emptyDescription = "_tutorial_favorite_view_"
    }
    
    // MARK: - DataSource + NC Endpoint
    
    override func reloadDataSource() {
        super.reloadDataSource()
        
        DispatchQueue.global().async {
            
            if !self.isSearching {
           
                if self.serverUrl == "" {
                    self.metadatasSource = NCManageDatabase.shared.getMetadatas(predicate: NSPredicate(format: "account == %@ AND favorite == true", self.appDelegate.account))
                } else {
                    self.metadatasSource = NCManageDatabase.shared.getMetadatas(predicate: NSPredicate(format: "account == %@ AND serverUrl == %@", self.appDelegate.account, self.serverUrl))
                }
            }
            
            self.dataSource = NCDataSource.init(metadatasSource: self.metadatasSource, sort:self.sort, ascending: self.ascending, directoryOnTop: self.directoryOnTop, favoriteOnTop: true, filterLivePhoto: true)
            
            DispatchQueue.main.async {
                self.refreshControl.endRefreshing()
                self.collectionView.reloadData()
            }
        }
    }
    
    override func reloadDataSourceNetwork(forced: Bool = false) {
        super.reloadDataSourceNetwork(forced: forced)
        
        if isSearching {
            networkSearch()
            return
        }
        
        isReloadDataSourceNetworkInProgress = true
        collectionView?.reloadData()
        
        if serverUrl == "" {
            
            NCNetworking.shared.listingFavoritescompletion(selector: NCBrandGlobal.shared.selectorListingFavorite) { (account, metadatas, errorCode, errorDescription) in
                if errorCode == 0 {
                    for metadata in metadatas ?? [] {
                        if !metadata.directory && CCUtility.getFavoriteOffline() {
                            let localFile = NCManageDatabase.shared.getTableLocalFile(predicate: NSPredicate(format: "ocId == %@", metadata.ocId))
                            if localFile == nil || localFile?.etag != metadata.etag {
                                NCOperationQueue.shared.download(metadata: metadata, selector: NCBrandGlobal.shared.selectorDownloadFile, setFavorite: false)
                            }
                        }
                    }
                } else {
                    NCContentPresenter.shared.messageNotification("_error_", description: errorDescription, delay: NCBrandGlobal.shared.dismissAfterSecond, type: NCContentPresenter.messageType.error, errorCode: errorCode)
                }
                
                self.refreshControl.endRefreshing()
                self.isReloadDataSourceNetworkInProgress = false
                self.reloadDataSource()
            }
            
        } else {
            
            networkReadFolder(forced: forced) { (metadatas, metadatasUpdate, errorCode, errorDescription) in
                if errorCode == 0 {
                    for metadata in metadatas ?? [] {
                        if !metadata.directory {
                            let localFile = NCManageDatabase.shared.getTableLocalFile(predicate: NSPredicate(format: "ocId == %@", metadata.ocId))
                            if (CCUtility.getFavoriteOffline() && localFile == nil) || (localFile != nil && localFile?.etag != metadata.etag) {
                                NCOperationQueue.shared.download(metadata: metadata, selector: NCBrandGlobal.shared.selectorDownloadFile, setFavorite: false)
                            }
                        }
                    }
                }
                
                self.refreshControl.endRefreshing()
                self.isReloadDataSourceNetworkInProgress = false
                if metadatasUpdate?.count ?? 0 > 0 || forced {
                    self.reloadDataSource()
                } else {
                    self.collectionView?.reloadData()
                }
            }
        }
    }
}