//
//  Document.swift
//  Graphic Analysis 2
//
//  Created by Kilian Hofmann on 15.06.17.
//  Copyright © 2017 Kilian Hofmann. All rights reserved.
//

import Cocoa

class Document: NSDocument {

    var year: FileWrapper?
    var months: [FileWrapper?] = [nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil]
    var days: [[FileWrapper?]] = []
    var yearDatasource: CollectionViewYear = CollectionViewYear()
    var monthDatasource: CollectionViewMonth = CollectionViewMonth()
    
    @IBOutlet var collectionViewYear: NSCollectionView!
    @IBOutlet var collectionViewMonth: NSCollectionView!
    
    override init() {
        super.init()
        for _ in 0..<12 {
            var temp: [FileWrapper?] = []
            for _ in 0..<31 {
                temp.append(nil)
            }
            days.append(temp)
        }
    }
    
    override class func autosavesInPlace() -> Bool {
        return false
    }
    
    override var windowNibName: String? {
        return "Document"
    }

    override func read(from fileWrapper: FileWrapper, ofType typeName: String) throws {
        year = fileWrapper
        for entry in fileWrapper.fileWrappers! {
            guard let month = Int(entry.key) else { continue }
            months[month-1] = entry.value
            for entry2 in entry.value.fileWrappers! {
                guard let day = Int(entry2.key) else { continue }
                days[month-1][day-1] = entry2.value
            }
        }
        //throw NSError(domain: NSOSStatusErrorDomain, code: unimpErr, userInfo: nil)
    }
    
    override func windowControllerDidLoadNib(_ windowController: NSWindowController) {
        // Setup collection layout
        let flowLayout = NSCollectionViewFlowLayout()
        flowLayout.itemSize = NSSize(width: 228, height: 211)
        flowLayout.sectionInset = EdgeInsets(top: 10, left: 0, bottom: 10, right: 0)
        flowLayout.minimumInteritemSpacing = 10
        flowLayout.minimumLineSpacing = 10
        collectionViewYear.collectionViewLayout = flowLayout
        let flowLayout2 = NSCollectionViewFlowLayout()
        flowLayout2.itemSize = NSSize(width: 135, height: 132)
        flowLayout2.sectionInset = EdgeInsets(top: 2, left: 2, bottom: 2, right: 2)
        flowLayout2.minimumInteritemSpacing = 2
        flowLayout2.minimumLineSpacing = 2
        collectionViewMonth.collectionViewLayout = flowLayout2
        // Performance
        windowController.window?.contentView?.wantsLayer = true
        // Data sources and delegate
        monthDatasource = CollectionViewMonth(days: days)
        yearDatasource = CollectionViewYear(months: months, dataSourceMonth: monthDatasource, collectionViewMonth: collectionViewMonth)
        collectionViewYear.dataSource = yearDatasource
        collectionViewYear.delegate = yearDatasource
        collectionViewMonth.dataSource = monthDatasource
        collectionViewMonth.delegate = monthDatasource
    }
    
    override func shouldCloseWindowController(_ windowController: NSWindowController, delegate: Any?, shouldClose shouldCloseSelector: Selector?, contextInfo: UnsafeMutableRawPointer?) {
        super.shouldCloseWindowController(windowController, delegate: delegate, shouldClose: shouldCloseSelector, contextInfo: contextInfo)
    }
}