//
//  WalletStatementViewController.swift
//  GMERemittance
//
//  Created by gme_2 on 03/10/2018.
//Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit


enum WalletStatementType {

}

class WalletStatementViewController: UIViewController {
    
    // MARK: IBOutlets
    
    @IBOutlet weak var tableView: UITableView!
    @IBOutlet weak var dateRangeLabelHeightConstraint: NSLayoutConstraint!
    @IBOutlet weak var fromDateLabel: UILabel!
    @IBOutlet weak var toDateLabel: UILabel!
    @IBOutlet weak var emptyLabel: UILabel!
    
    // MARK: Properties

    
    var presenter: WalletStatementModuleInterface?
    var from: String?
    var to: String?

    
    var statements: [WalletStatement] = [] {
        didSet {
            self.emptyLabel.isHidden = !statements.isEmpty
            self.tableView.reloadData()
            guard let fromDate = from, let toDate = to else {
                self.dateRangeLabelHeightConstraint.constant = 0
                return
            }
            self.fromDateLabel.text = self.getHUmanReadableDate(date: fromDate)
            self.toDateLabel.text = self.getHUmanReadableDate(date: toDate)
            UIView.animate(withDuration: 0.33, animations: {
                self.dateRangeLabelHeightConstraint.constant = Constant.heightOfDateRangeLabel
            })
        }
    }
    

    struct Constant {
        static let heightOfDateRangeLabel: CGFloat = 35
    }
    
    // MARK: VC's Life cycle
    
    override func viewDidLoad() {
        super.viewDidLoad()
        self.setupNormalNavigation()
        self.setupDateFilterButton()
        self.setup()
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        self.navigationItem.title = "Wallet Statement"
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillAppear(animated)
        self.navigationItem.title = ""
    }
    
    // MARK: IBActions
    
    @objc func openSearchFilter() {
        // open search filter
        let viewController = UIStoryboard.init(name: "TransactionHistoryDatePicker", bundle: nil).instantiateViewController(withIdentifier: "DatePickerViewController")  as! DatePickerViewController
        viewController.completion = self.selectedDate
        self.present(viewController, animated: true, completion: nil)
    }
    
    private func selectedDate(from: String?, to: String?) {
        self.from = from
        self.to = to
        guard let fromDate = from, let toDate = to else {return}
        self.presenter?.fetchWalletSatement(fromDate: fromDate, toDate: toDate)
    }
    
    // MARK: Other Functions
    
    private func setup() {
        // all setup should be done here
        setupDelegates()
        setupDateFilterButton()
        configureViews()
        self.presenter?.viewIsReady()
    }
    
    private func configureViews() {
        self.dateRangeLabelHeightConstraint.constant = 0
//        self.emptyLabel.textColor = AppConstants.themeBlueColor
    }
    
    private func setupDateFilterButton() {
        let filterItem = UIBarButtonItem.init(image: #imageLiteral(resourceName: "ic_calender"), style: UIBarButtonItemStyle.plain, target: self, action: #selector(self.openSearchFilter))
        self.navigationItem.rightBarButtonItem = filterItem
    }
    

    
    private func getHUmanReadableDate(date: String?) -> String? {
        if let date = DateFormatter.toDate(dateString: date ?? "", format: AppConstants.dateFormat) {
            let dateString = DateFormatter.toString(date: date, format: AppConstants.humanReadableDateFormat)
            return dateString
        }
        return nil
    }
    
    private func setupDelegates() {
        self.tableView.delegate = self
        self.tableView.dataSource = self
    }
}

// MARK: WalletStatementViewInterface
extension WalletStatementViewController: WalletStatementViewInterface {
    func showLoading() {
        self.showProgressHud()
    }
    
    func hideLoading() {
        self.hideProgressHud()
    }
    
    func show(error: String) {
        self.alert(message: error)
    }
    
    func show(models: [WalletStatement]) {
        self.statements = models
    }
}


// MARK: TableViewDelegate
extension WalletStatementViewController: UITableViewDelegate {
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
//        self.presenter?.showDetailOf(index: indexPath.row)
    }
}

// MARK: TableViewDatasource
extension WalletStatementViewController: UITableViewDataSource {
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return statements.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "WalletStatementTableViewCell") as!  WalletStatementTableViewCell
        cell.model = self.statements.elementAt(index: indexPath.row)
        cell.setup()
        return cell
    }
}