AccountDetailsInterfaceController.swift

//
//  AccountDetailsInterfaceController.swift
//  SynchronyFinancial WatchKit Extension
//
//  Created by Alan Maynard on 3/6/19.
//  Copyright © 2019 Alan Maynard. All rights reserved.
//

import WatchKit
import Foundation

class AccountDetailsInterfaceController: WKInterfaceController {
    var selectedAccount: Account?
    var transactionDict: [String: Any] = [:]

    @IBOutlet var loadingLabel: WKInterfaceLabel!
    @IBOutlet var activityIndicator: WKInterfaceImage!
    @IBOutlet weak var transactionsButton: WKInterfaceButton!
    @IBOutlet weak var payButton: WKInterfaceButton!
    @IBOutlet weak var balanceLabel: WKInterfaceLabel!
    @IBOutlet weak var availableFundsLabel: WKInterfaceLabel!
    @IBOutlet weak var accountNameLabel: WKInterfaceLabel!
    @IBOutlet var nextPaymentTitleLabel: WKInterfaceLabel!
    @IBOutlet weak var nextPaymentDueLabel: WKInterfaceLabel!

    @IBAction func payBillTapped() {
        if let acct = selectedAccount {
            pushController(withName: "PayMinimum", context: acct)
        }
    }

    @IBAction func recentButtonTapped() {
        configureInterfaceObjects(true)
        activityIndicator.configureForActivityIndicator()
        if let alias = selectedAccount?.accountAlias {
            FetchData.fetchTransactionsFor(accountAlias: alias) { transactions, error in
                guard error == nil else {
                    NSLog("Error retrieving transactions for account.")
                    return
                }

                if let acct = self.selectedAccount {
                    self.transactionDict.updateValue(acct, forKey: "acct")
                }
                self.transactionDict.updateValue(transactions, forKey: "transactions")
                self.pushController(withName: "Transactions", context: self.transactionDict)
                self.configureInterfaceObjects(false)
                self.activityIndicator.stopAnimatingAsIndicator()
            }
        }
    }

    override func awake(withContext context: Any?) {
        super.awake(withContext: context)
        payButton.setWidth(self.contentFrame.width / 2)
        transactionsButton.setWidth(self.contentFrame.width / 2)

        guard let data = context as? Account else {
            NSLog("Error receiving context containing selected account in AccountDetailInterfaceController")
            return
        }

        selectedAccount = data
        configureForAccount()
    }

    override func contextForSegue(withIdentifier segueIdentifier: String) -> Any? {
        if segueIdentifier == "payBill", let acct = selectedAccount {
            return acct
        }

        return nil
    }

    private func configureForAccount() {
        guard selectedAccount != nil, let acct = selectedAccount else {
            NSLog("Error configuring AccountDetails. selectedAccount is nil")
            return
        }

        let balanceFormatted = String(format: "%.2f", acct.curBalance)
        let availableFormatted = String(format: "%.2f", acct.creditLimit - acct.curBalance)
        let date = DateFormatter.localizedString(from: acct.paymentDueDate, dateStyle: .medium, timeStyle: .none)

        accountNameLabel.setText(acct.accountName)
        balanceLabel.setText("Balance: $\(balanceFormatted)")
        availableFundsLabel.setText("Available: $\(availableFormatted)")
        nextPaymentDueLabel.setText(date)
    }

    private func configureInterfaceObjects(_ hide: Bool) {
        transactionsButton.setHidden(hide)
        payButton.setHidden(hide)
        balanceLabel.setHidden(hide)
        availableFundsLabel.setHidden(hide)
        accountNameLabel.setHidden(hide)
        nextPaymentDueLabel.setHidden(hide)
        nextPaymentTitleLabel.setHidden(hide)
        loadingLabel.setVerticalAlignment(.center)
        loadingLabel.setHidden(!hide)
    }
}