//
//  CollectionViewYear.swift
//  Graphic Analysis 2
//
//  Created by Kilian Hofmann on 16.06.17.
//  Copyright © 2017 Kilian Hofmann. All rights reserved.
//

import Cocoa

class CollectionViewYear: NSObject {
    var months: [FileWrapper?] = []
    var dsMonth: CollectionViewMonth = CollectionViewMonth()
    var cvMonth: NSCollectionView = NSCollectionView()
    let monthNames: [String] = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]
    var doc: Document!
    
    override init() {
        super.init()
    }
    
    init(months: [FileWrapper?], dataSourceMonth: CollectionViewMonth, collectionViewMonth: NSCollectionView, document: Document) {
        super.init()
        self.months = months
        self.dsMonth = dataSourceMonth
        self.cvMonth = collectionViewMonth
        doc = document
    }
}

extension CollectionViewYear: NSCollectionViewDataSource {
    func collectionView(_ collectionView: NSCollectionView, numberOfItemsInSection section: Int) -> Int {
        return 12
    }
    
    func collectionView(_ itemForRepresentedObjectAtcollectionView: NSCollectionView, itemForRepresentedObjectAt indexPath: IndexPath) -> NSCollectionViewItem {
        let item = itemForRepresentedObjectAtcollectionView.makeItem(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "CollectionViewItemYear"), for: indexPath)
        guard let item2 = item as? CollectionViewItemYear else { return item }
        if item2.isSelected {
           item2.view.layer?.borderColor = NSColor.gray.cgColor
        } else {
            item2.view.layer?.borderColor = NSColor.clear.cgColor
        }
        item2.unsetDays()
        item2.month.textColor = NSColor.controlShadowColor
        item2.month.stringValue = monthNames[indexPath.item]
        item2.monthFW = months[indexPath.item]
        guard months[indexPath.item] != nil && monthNames[indexPath.item] == item2.month.stringValue else { return item2 }
        item2.month.textColor = NSColor.black
        item2.setDays()
        return item2
    }
}

extension CollectionViewYear : NSCollectionViewDelegate {
    func collectionView(_ collectionView: NSCollectionView, didSelectItemsAt indexPaths: Set<IndexPath>) {
        (collectionView.item(at: indexPaths.first!) as! CollectionViewItemYear).view.layer?.borderColor = NSColor.gray.cgColor
        dsMonth.month = indexPaths.first?.item
        doc.progress.doubleValue = 0
        doc.progress.isHidden = false
        self.cvMonth.reloadData()
    }
    
    func collectionView(_ collectionView: NSCollectionView, didDeselectItemsAt indexPaths: Set<IndexPath>) {
        guard let layer = (collectionView.item(at: indexPaths.first!) as? CollectionViewItemYear)?.view.layer else { return }
        layer.borderColor = NSColor.clear.cgColor
        dsMonth.month = nil
        doc.progress.doubleValue = 0
        doc.progress.isHidden = false
        self.cvMonth.reloadData()
    }
}