//
//  NCManageAutoUploadFileName.swift
//  Nextcloud
//
//  Created by Marino Faggiana on 19/07/17.
//  Copyright (c) 2017 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 UIKit
import Photos
import NextcloudKit

class NCManageAutoUploadFileName: XLFormViewController {

    let appDelegate = (UIApplication.shared.delegate as? AppDelegate)!
    let dateExample = Date()

    func initializeForm() {

        let form: XLFormDescriptor = XLFormDescriptor() as XLFormDescriptor
        form.rowNavigationOptions = XLFormRowNavigationOptions.stopDisableRow

        var section: XLFormSectionDescriptor
        var row: XLFormRowDescriptor

        // Section Mode filename

        section = XLFormSectionDescriptor.formSection(withTitle: NSLocalizedString("_mode_filename_", comment: ""))
        form.addFormSection(section)

        // Maintain the original fileName

        row = XLFormRowDescriptor(tag: "maintainOriginalFileName", rowType: XLFormRowDescriptorTypeBooleanSwitch, title: NSLocalizedString("_maintain_original_filename_", comment: ""))
        row.value = NCKeychain().getOriginalFileName(key: NCGlobal.shared.keyFileNameOriginalAutoUpload)
        row.cellConfig["backgroundColor"] = UIColor.secondarySystemGroupedBackground

        row.cellConfig["textLabel.font"] = UIFont.systemFont(ofSize: 15.0)
        row.cellConfig["textLabel.textColor"] = UIColor.label

        section.addFormRow(row)

        // Add File Name Type

        row = XLFormRowDescriptor(tag: "addFileNameType", rowType: XLFormRowDescriptorTypeBooleanSwitch, title: NSLocalizedString("_add_filenametype_", comment: ""))
        row.value = NCKeychain().getFileNameType(key: NCGlobal.shared.keyFileNameAutoUploadType)
        row.hidden = "$\("maintainOriginalFileName") == 1"
        row.cellConfig["backgroundColor"] = UIColor.secondarySystemGroupedBackground

        row.cellConfig["textLabel.font"] = UIFont.systemFont(ofSize: 15.0)
        row.cellConfig["textLabel.textColor"] = UIColor.label

        section.addFormRow(row)

        // Section: Rename File Name

        section = XLFormSectionDescriptor.formSection(withTitle: NSLocalizedString("_filename_", comment: ""))
        form.addFormSection(section)

        row = XLFormRowDescriptor(tag: "maskFileName", rowType: XLFormRowDescriptorTypeText, title: (NSLocalizedString("_filename_", comment: "")))
        let fileNameMask: String = NCKeychain().getFileNameMask(key: NCGlobal.shared.keyFileNameAutoUploadMask)
        if !fileNameMask.isEmpty {
            row.value = fileNameMask
        }
        row.hidden = "$\("maintainOriginalFileName") == 1"
        row.cellConfig["backgroundColor"] = UIColor.secondarySystemGroupedBackground

        row.cellConfig["textLabel.font"] = UIFont.systemFont(ofSize: 15.0)
        row.cellConfig["textLabel.textColor"] = UIColor.label

        row.cellConfig["textField.textAlignment"] = NSTextAlignment.right.rawValue
        row.cellConfig["textField.font"] = UIFont.systemFont(ofSize: 15.0)
        row.cellConfig["textField.textColor"] = UIColor.label

        section.addFormRow(row)

        // Section: Preview File Name

        row = XLFormRowDescriptor(tag: "previewFileName", rowType: XLFormRowDescriptorTypeTextView, title: "")
        row.height = 180
        row.disabled = true
        row.cellConfig["backgroundColor"] = UIColor.secondarySystemGroupedBackground

        row.cellConfig["textView.backgroundColor"] = UIColor.secondarySystemGroupedBackground
        row.cellConfig["textView.font"] = UIFont.systemFont(ofSize: 14.0)
        row.cellConfig["textView.textColor"] = UIColor.label

        section.addFormRow(row)

        self.tableView.separatorStyle = UITableViewCell.SeparatorStyle.none
        self.form = form
    }

    // MARK: - View Life Cycle

    override func viewDidLoad() {
        super.viewDidLoad()

        self.title = NSLocalizedString("_mode_filename_", comment: "")
        view.backgroundColor = .systemGroupedBackground

        tableView.backgroundColor = .systemGroupedBackground

        initializeForm()
        reloadForm()
    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        appDelegate.activeViewController = self
    }

    // MARK: XLForm

    func reloadForm() {

        self.form.delegate = nil

        let maskFileName: XLFormRowDescriptor = self.form.formRow(withTag: "maskFileName")!
        let previewFileName: XLFormRowDescriptor = self.form.formRow(withTag: "previewFileName")!
        previewFileName.value = self.previewFileName(valueRename: maskFileName.value as? String)

        self.tableView.reloadData()
        self.form.delegate = self
    }

    override func formRowDescriptorValueHasChanged(_ formRow: XLFormRowDescriptor!, oldValue: Any!, newValue: Any!) {

        super.formRowDescriptorValueHasChanged(formRow, oldValue: oldValue, newValue: newValue)

        if formRow.tag == "addFileNameType" {
            NCKeychain().setFileNameType(key: NCGlobal.shared.keyFileNameAutoUploadType, prefix: (formRow.value! as AnyObject).boolValue)
            self.reloadForm()
        } else if formRow.tag == "maintainOriginalFileName" {
            NCKeychain().setOriginalFileName(key: NCGlobal.shared.keyFileNameOriginalAutoUpload, value: (formRow.value! as AnyObject).boolValue)
            self.reloadForm()
        } else if formRow.tag == "maskFileName" {

            let fileName = formRow.value as? String

            self.form.delegate = nil

            if let fileName = fileName {
                formRow.value = NCUtility().removeForbiddenCharacters(fileName)
            }

            self.form.delegate = self

            let previewFileName: XLFormRowDescriptor = self.form.formRow(withTag: "previewFileName")!
            previewFileName.value = self.previewFileName(valueRename: formRow.value as? String)

            // reload cell
            if fileName != nil {

                if newValue as? String != formRow.value as? String {

                    self.reloadFormRow(formRow)

                    let errorDescription = String(format: NSLocalizedString("_forbidden_characters_", comment: ""), NCGlobal.shared.forbiddenCharacters.joined(separator: " "))
                    let error = NKError(errorCode: NCGlobal.shared.errorConflict, errorDescription: errorDescription)
                    NCContentPresenter().showInfo(error: error)
                }
            }

            self.reloadFormRow(previewFileName)
        }
    }

    // MARK: - Utility

    func previewFileName(valueRename: String?) -> String {

        var returnString: String = ""

        if NCKeychain().getOriginalFileName(key: NCGlobal.shared.keyFileNameOriginalAutoUpload) {

            return (NSLocalizedString("_filename_", comment: "") + ": IMG_0001.JPG")

        } else if let valueRename = valueRename {

            let valueRenameTrimming = valueRename.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines)

            if valueRenameTrimming.isEmpty {

                NCKeychain().setFileNameMask(key: NCGlobal.shared.keyFileNameAutoUploadMask, mask: "")
                returnString = CCUtility.createFileName("IMG_0001.JPG", fileDate: dateExample, fileType: PHAssetMediaType.image, keyFileName: nil, keyFileNameType: NCGlobal.shared.keyFileNameAutoUploadType, keyFileNameOriginal: NCGlobal.shared.keyFileNameOriginalAutoUpload, forcedNewFileName: false)

            } else {

                self.form.delegate = nil
                NCKeychain().setFileNameMask(key: NCGlobal.shared.keyFileNameAutoUploadMask, mask: valueRename)
                self.form.delegate = self

                returnString = CCUtility.createFileName("IMG_0001.JPG", fileDate: dateExample, fileType: PHAssetMediaType.image, keyFileName: NCGlobal.shared.keyFileNameAutoUploadMask, keyFileNameType: NCGlobal.shared.keyFileNameAutoUploadType, keyFileNameOriginal: NCGlobal.shared.keyFileNameOriginalAutoUpload, forcedNewFileName: false)
            }

        } else {

            NCKeychain().setFileNameMask(key: NCGlobal.shared.keyFileNameAutoUploadMask, mask: "")
            returnString = CCUtility.createFileName("IMG_0001.JPG", fileDate: dateExample, fileType: PHAssetMediaType.image, keyFileName: nil, keyFileNameType: NCGlobal.shared.keyFileNameAutoUploadType, keyFileNameOriginal: NCGlobal.shared.keyFileNameOriginalAutoUpload, forcedNewFileName: false)
        }

        return String(format: NSLocalizedString("_preview_filename_", comment: ""), "MM,MMM,DD,YY,YYYY and HH,hh,mm,ss,ampm") + ":" + "\n\n" + returnString
    }
}