//
//  ViewController.swift
//  Converter
//
//  Created by Kilian Hofmann on 20.06.17.
//  Copyright © 2017 Kilian Hofmann. All rights reserved.
//

import Cocoa

class ViewController: NSViewController {
    
    @IBOutlet var months: NSTextField!
    @IBOutlet var days: NSTextField!
    @IBOutlet var files: NSTextField!
    @IBOutlet var progress: NSTextField!
    @IBOutlet var convert: NSButton!
    @IBOutlet var inPath: NSTextField!
    
    var fileWrappers: [String : [String : FileWrapper]]!
    var filesDone: Int = 0
    var filesTotal: Int = 0
    
    override func viewDidLoad() {
        super.viewDidLoad()
        title = ""
        // Do any additional setup after loading the view.
    }
    
    @IBAction func convert(sender: NSButton) {
        convert.isEnabled = false
        (NSApp.delegate as! AppDelegate).isConverting = true
    
        let opQueue: OperationQueue = OperationQueue()
        let fileQueue: OperationQueue = OperationQueue()
        fileQueue.maxConcurrentOperationCount = 4
        
        let myActivity = ProcessInfo.processInfo.beginActivity(options: .userInitiated, reason: "Converting")
        opQueue.addOperation {
            defer {
                fileQueue.waitUntilAllOperationsAreFinished()
                ProcessInfo.processInfo.endActivity(myActivity)
                OperationQueue.main.addOperation {
                    self.convert.isEnabled = true
                    (NSApp.delegate as! AppDelegate).isConverting = false
                }
            }
            
            let inP: String = self.inPath.stringValue

            var days: Int = 0
            do {
                let directory = try FileWrapper(url: URL(fileURLWithPath: inP), options: .immediate)
                for months in directory.fileWrappers! {
                    guard months.value.isDirectory else { continue }
                    days += (months.value.fileWrappers?.count)!
                    if (months.value.fileWrappers?.contains(where: {$0.0 == ".DS_Store" }))! {
                        days -= 1
                    }
                    for days in months.value.fileWrappers! {
                        guard days.value.isDirectory else { continue }
                        self.filesTotal += (days.value.fileWrappers?.count)!
                        if (days.value.fileWrappers?.contains(where: {$0.0 == ".DS_Store" }))! {
                            self.filesTotal -= 1
                        }
                        if (days.value.fileWrappers?.contains(where: {$0.0 == "Content.plist" }))! {
                            self.filesTotal -= 1
                        }
                    }
                }
                OperationQueue.main.addOperation {
                    self.months.stringValue = "\(directory.fileWrappers!.count)"
                    self.days.stringValue = "\(days)"
                    self.files.stringValue = "\(self.filesTotal)"
                    self.progress.stringValue = "File \(self.filesDone) of \(self.filesTotal)"
                }
            } catch _ {
                OperationQueue.main.addOperation {
                    self.convert.isEnabled = true
                    (NSApp.delegate as! AppDelegate).isConverting = false
                }
            }
            
            for month in 1...12 {
                for day in 1...31 {
                    let path: String = inP + String(format: "/%02d", month) + String(format: "/%02d", day)
                    do {
                        let directory = try FileWrapper(url: URL(fileURLWithPath: path), options: .immediate)
                        for file in directory.fileWrappers! {
                            if file.key == "KDLog.txt" {
                                let pathOut = path.appending("/" + file.key.replacingOccurrences(of: ".txt", with: ".hex")).replacingOccurrences(of: ".docsisplist2", with: "C.docsisplist2")
                                //print(path.appending(file.key) + " to " + pathOut)
                                self.makeSubDir(path: pathOut.replacingOccurrences(of: file.key.replacingOccurrences(of: ".txt", with: ".hex"), with: ""))
                                FileOperations.convertLoss(log: path.appending("/" + file.key), toFile: pathOut)
                                OperationQueue.main.addOperation {
                                    self.filesDone += 1
                                    self.progress.stringValue = "File \(self.filesDone) of \(self.filesTotal)"
                                }
                            } else if file.key.contains("Upstream") {
                                let pathOut = path.appending("/" + file.key.replacingOccurrences(of: ".csv", with: ".hex")).replacingOccurrences(of: ".docsisplist2", with: "C.docsisplist2")
                                //print(path.appending(file.key) + " to " + pathOut)
                                self.makeSubDir(path: pathOut.replacingOccurrences(of: file.key.replacingOccurrences(of: ".csv", with: ".hex"), with: ""))
                                FileOperations.convertUpstream(log: path.appending("/" + file.key), toFile: pathOut)
                                OperationQueue.main.addOperation {
                                    self.filesDone += 1
                                    self.progress.stringValue = "File \(self.filesDone) of \(self.filesTotal)"
                                }
                            } else if file.key.contains("Downstream") {
                                let pathOut = path.appending("/" + file.key.replacingOccurrences(of: ".csv", with: ".hex")).replacingOccurrences(of: ".docsisplist2", with: "C.docsisplist2")
                                //print(path.appending(file.key) + " to " + pathOut)
                                self.makeSubDir(path: pathOut.replacingOccurrences(of: file.key.replacingOccurrences(of: ".csv", with: ".hex"), with: ""))
                                FileOperations.convertDownstream(log: path.appending("/" + file.key), toFile: pathOut)
                                OperationQueue.main.addOperation {
                                    self.filesDone += 1
                                    self.progress.stringValue = "File \(self.filesDone) of \(self.filesTotal)"
                                }
                            }
                        }
                    } catch _ { continue }
                }
            }
        }
    }
    
    func makeSubDir(path: String) {
        // Check if directory exists, create or exit
        let fileManager = FileManager.default
        var directory: ObjCBool = ObjCBool(false)
        let exists: Bool = fileManager.fileExists(atPath: (path as NSString).expandingTildeInPath, isDirectory: &directory)
        if exists && directory.boolValue {
        } else if exists {
            NSLog("FILE WITH NAME KDLog EXISTS, REMOVE IT")
            exit(1);
        }
        else {
            do {
                try fileManager.createDirectory(atPath: (path as NSString).expandingTildeInPath, withIntermediateDirectories: true, attributes: nil)
            }
            catch let error as NSError {
                NSLog("ERROR ON DIRECTORY CREATION: \(error.localizedDescription)")
                exit(1);
            }
        }
    }
}