//
//  NCNetworkingCheckRemoteUser.swift
//  Nextcloud
//
//  Created by Marino Faggiana on 15/05/2020.
//  Copyright © 2020 Marino Faggiana. All rights reserved.
//
//
//  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 UIKit
import NextcloudKit

@objc class NCNetworkingCheckRemoteUser: NSObject {
    @objc public static let shared: NCNetworkingCheckRemoteUser = {
        let instance = NCNetworkingCheckRemoteUser()
        return instance
    }()

    var checkRemoteUserInProgress = false

    @objc func checkRemoteUser(account: String, error: NKError) {

        if self.checkRemoteUserInProgress {
            return
        } else {
            self.checkRemoteUserInProgress = true
        }

        let serverVersionMajor = NCManageDatabase.shared.getCapabilitiesServerInt(account: account, elements: NCElementsJSON.shared.capabilitiesVersionMajor)
        guard let tableAccount = NCManageDatabase.shared.getAccount(predicate: NSPredicate(format: "account == %@", account)) else {
            self.checkRemoteUserInProgress = false
            return
        }

        if serverVersionMajor >= NCGlobal.shared.nextcloudVersion17 {

            if error.errorCode == NCGlobal.shared.errorUnauthorized {

                let token = CCUtility.getPassword(account)!
                if token == "" {
                    self.checkRemoteUserInProgress = false
                    return
                }

                NextcloudKit.shared.getRemoteWipeStatus(serverUrl: tableAccount.urlBase, token: token) { account, wipe, error in

                    let appDelegate = UIApplication.shared.delegate as! AppDelegate
                    if wipe {

                        appDelegate.deleteAccount(account, wipe: true)
                        let error = NKError(errorCode: NCGlobal.shared.errorInternalError, errorDescription: "_wipe_account_")
                        NCContentPresenter.shared.messageNotification(tableAccount.user, error: error, delay: NCGlobal.shared.dismissAfterSecondLong, type: NCContentPresenter.messageType.error, priority: .max)
                        NextcloudKit.shared.setRemoteWipeCompletition(serverUrl: tableAccount.urlBase, token: token) { _, _ in print("wipe") }

                    } else {

                        if UIApplication.shared.applicationState == .active && NextcloudKit.shared.isNetworkReachable() && !CCUtility.getPassword(account).isEmpty && !appDelegate.deletePasswordSession {
                            let description = String.localizedStringWithFormat(NSLocalizedString("_error_check_remote_user_", comment: ""), tableAccount.user, tableAccount.urlBase)
                            let error = NKError(errorCode: error.errorCode, errorDescription: description)
                            NCContentPresenter.shared.showError(error: error, priority: .max)
                            CCUtility.setPassword(account, password: nil)
                            appDelegate.deletePasswordSession = true
                        }
                    }

                    self.checkRemoteUserInProgress = false
                }

            } else {

                NCContentPresenter.shared.showError(error: error, priority: .max)

                self.checkRemoteUserInProgress = false
            }

        } else if CCUtility.getPassword(account) != "" {

            if UIApplication.shared.applicationState == .active &&  NextcloudKit.shared.isNetworkReachable() {
                let description = String.localizedStringWithFormat(NSLocalizedString("_error_check_remote_user_", comment: ""), tableAccount.user, tableAccount.urlBase)
                let error = NKError(errorCode: error.errorCode, errorDescription: description)
                NCContentPresenter.shared.showError(error: error, priority: .max)
                CCUtility.setPassword(account, password: nil)
            }

            self.checkRemoteUserInProgress = false
        }
    }
}