//
//  HomeCollectionTableViewCell.swift
//  GMERemittance
//
//  Created by gme_2 on 27/09/2018.
//  Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit
import Localize_Swift

struct MenuNotificationName {
    static let sendMoney = "SendMoeny"
    static let mobileRecharge = "mobileRecharge"
    static let todaysRate = "todaysRate"
    static let resend = "resend"
    static let transactionStatement = "transactionStatement"
    static let walletToWallet = "walletToWallet"
    static let collectionHeight = "height_height"
}

class HomeCollectionTableViewCell: UITableViewCell, UICollectionViewDelegateFlowLayout {
    
    struct StringConstants {
        let sendMoneyText = "send_money_text".localized()
        let todaysRateText = "todays_rate_title_text".localized()
        let transactionReportText =  "transaction_report_title_text".localized()
        let walletStatement = "gme_wallet_statement_text".localized()
    }
    
    enum CollectionMenus: Int {
        case sendMoney = 0
        case mobileRecharge
        case todaysRate
        case walletStatement
        case resend
        case walletToWallet
    }
    
    @IBOutlet weak var collectionView: UICollectionView!
    private var menus: [HomeCollectionModel]?
   
    var parentViewController: HomeViewController?
    override func awakeFromNib() {
        super.awakeFromNib()
        // Initialization code
        self.collectionView.delegate = self
        self.collectionView.dataSource = self
    }
    
    
    func setup() {
        collectionView.addObserver(self, forKeyPath: "contentSize", options: NSKeyValueObservingOptions.old, context: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(configureLanguage), name: NSNotification.Name(LCLLanguageChangeNotification), object: nil)
           self.menus = self.configureMenu()
    }
    
    @objc func configureLanguage() {
        self.collectionView.reloadData()
    }
    
    private func configureMenu() -> [HomeCollectionModel] {
        let sendMoneyMenu = HomeCollectionModel()
        sendMoneyMenu.index = 0
        let text = "send_money_text".localized()
        sendMoneyMenu.title = text
        sendMoneyMenu.icon = #imageLiteral(resourceName: "send-money")
        
        let mobileRechargeMenu = HomeCollectionModel()
        mobileRechargeMenu.index = 1
        mobileRechargeMenu.title = "Mobile Recharge"
        mobileRechargeMenu.icon = #imageLiteral(resourceName: "mobile-recharge")
        
        let toadaysRateMenu = HomeCollectionModel()
        toadaysRateMenu.index = 2
        toadaysRateMenu.title = "todays_rate_text".localized()
        toadaysRateMenu.icon = #imageLiteral(resourceName: "rate-today")
        
        let trackTransferMenu = HomeCollectionModel()
        trackTransferMenu.index = 3
        trackTransferMenu.title = "gme_wallet_statement_text".localized()
        let walletImage = UIImage.init(named: "ic_menu_wallet")
        trackTransferMenu.icon = walletImage
        
        let transactionStatementMenu = HomeCollectionModel()
        transactionStatementMenu.index = 4
        transactionStatementMenu.title = "resend_money_text".localized()
        let image = UIImage.init(named: "ic_menu_sendmoney")
        transactionStatementMenu.icon = image
        
        let walletToWalletMenu = HomeCollectionModel()
        walletToWalletMenu.index = 5
        walletToWalletMenu.title = "Wallet to Wallet Transfer"
        walletToWalletMenu.icon = #imageLiteral(resourceName: "wallet-transfer")
        
        let menus = [sendMoneyMenu, toadaysRateMenu, transactionStatementMenu, trackTransferMenu]
        return menus
    }
    
    override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
        if let observedObject = object as? UICollectionView, observedObject == collectionView {
            let height = self.collectionView.contentSize.height
            let finalHeight = height + CGFloat(20)
            NotificationCenter.default.post(name: self.getCollectionHeightNotificationName(), object: nil, userInfo: [MenuNotificationName.collectionHeight : finalHeight])
        }
    }
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        
        
        let device = Utility.getDeviceModel()
        if device == .iphone5 {
            
            let itemsPerRow: CGFloat = 2
            let paddingSpace: CGFloat = CGFloat(20 * (itemsPerRow + 1))
            let availableWidth = frame.width - paddingSpace
            let widthPerItem = availableWidth / itemsPerRow
            return CGSize(width: widthPerItem, height: widthPerItem * 1.2)
        }else {
            let itemsPerRow: CGFloat = 2
            let paddingSpace: CGFloat = CGFloat(25 * (itemsPerRow + 1))
            let availableWidth = frame.width - paddingSpace
            let widthPerItem = availableWidth / itemsPerRow
            return CGSize(width: widthPerItem, height: widthPerItem * 1.1)
        }
    }
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
        if Utility.getDeviceModel() == .iphone5 {
            return UIEdgeInsets(top: 20, left: 10, bottom: 10, right: 10)
        }else {
            return UIEdgeInsets(top: 20, left: 15, bottom: 10, right: 15)
        }
    }
    
}


extension HomeCollectionTableViewCell: UICollectionViewDataSource {
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return menus?.count ?? 0
    }
    
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = self.collectionView.dequeueReusableCell(withReuseIdentifier: "HomeCollectionCollectionViewCell", for: indexPath) as! HomeCollectionCollectionViewCell
        let menus = self.configureMenu()
        cell.model = menus.elementAt(index: indexPath.row)
        cell.setup()
        return cell
    }
}

extension HomeCollectionTableViewCell: UICollectionViewDelegate {
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        guard let index = self.menus?.elementAt(index: indexPath.row)?.index else {return}
        guard let _index = CollectionMenus.init(rawValue: index) else {return }
        let center = NotificationCenter.default
        
        switch _index {
            
        case .sendMoney:
            center.post(name: self.getSendMoneyNotificationName(), object: nil)
        case .mobileRecharge:
            center.post(name: self.getMobileRechargeNotificationName(), object: nil)
        case .todaysRate:
            center.post(name: self.getTodaysRateNotificationName(), object: nil)
        case .walletStatement:
            center.post(name: self.getTrackYourTransferNotificationName(), object: nil)
        case .resend:
            center.post(name: self.getResendNotificationName(), object: nil)
        case .walletToWallet:
            center.post(name: self.getWalletToWalletNotificationName(), object: nil)
        }
    }
    
    
    func getSendMoneyNotificationName() -> Notification.Name {
        return Notification.Name.init(rawValue: MenuNotificationName.sendMoney)
    }
    
    func getMobileRechargeNotificationName() -> Notification.Name {
        return Notification.Name.init(rawValue: MenuNotificationName.mobileRecharge)
    }
    
    func getTodaysRateNotificationName() -> Notification.Name {
        return Notification.Name.init(rawValue: MenuNotificationName.todaysRate)
    }
    func getTrackYourTransferNotificationName() -> Notification.Name {
        return Notification.Name.init(rawValue: MenuNotificationName.transactionStatement)
    }
    func getResendNotificationName() -> Notification.Name {
        return Notification.Name.init(rawValue: MenuNotificationName.resend)
    }
    func getWalletToWalletNotificationName() -> Notification.Name {
        return Notification.Name.init(rawValue: MenuNotificationName.walletToWallet)
    }
    
    func getCollectionHeightNotificationName() -> Notification.Name {
        return Notification.Name.init(rawValue: MenuNotificationName.collectionHeight)
    }
}