/*

    Copyright (C) 2016 Apple Inc. All Rights Reserved.

    See LICENSE.txt for this sample’s licensing information

    Abstract:

    The `ViewController` class that handles interface updates based on the changing of the `WCSession`.

*/

import UIKit

import WatchConnectivity

class ViewController: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource, WatchConnectivityManagerPhoneDelegate {

    // MARK: Properties

    let colorMapping = [

        "Gray":   UIColor.darkGray,

        "Blue":   UIColor(red: 0.42, green: 0.70, blue: 0.88, alpha: 1),

        "Green":  UIColor(red: 0.71, green: 0.84, blue: 0.31, alpha: 1),

        "Yellow": UIColor(red: 0.95, green: 0.88, blue: 0.15, alpha: 1),

        "Orange": UIColor(red: 0.96, green: 0.63, blue: 0.20, alpha: 1),

        "Red":    UIColor(red: 0.96, green: 0.42, blue: 0.42, alpha: 1)

    ]

    struct MorseCode {

        let text: String

        let code: String

    }

    let morseCodes = [

                         MorseCode(text: "WWDC", code: ".-- .-- -.. -.-."),

                         MorseCode(text: "is", code: ".. ..."),

                         MorseCode(text: "fun", code: "..-. ..- -."),

                         MorseCode(text: "exciting", code: ". -..- -.-. .. - .. -. --."),

                         MorseCode(text: "educational", code: ". -.. ..- -.-. .- - .. --- -. .- .-.."),

                         MorseCode(text: "social", code: "... --- -.-. .. .- .-..")

                         ]

    @IBOutlet weak var deviceDesignator: UILabel!

    override func viewDidLoad() {

        super.viewDidLoad()

        // The `WatchConnectivityManager` will provide tailored callbacks to its delegate.

        WatchConnectivityManager.sharedConnectivityManager.delegate = self

    }

    // MARK: WatchConnectivityManagerDelegate

    func watchConnectivityManager(_ watchConnectivityManager: WatchConnectivityManager, updatedWithDesignator designator: String, designatorColor: String) {

        DispatchQueue.main.async(execute: {

            self.view.backgroundColor = self.colorMapping[designatorColor] ?? UIColor.white

            self.deviceDesignator.text = designator

        })

    }

    // MARK: UIPicker

    func numberOfComponents(in pickerView: UIPickerView) -> Int {

        return 1

    }

    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {

        return morseCodes.count

    }

    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {

        let morseCode = morseCodes[row]

        return "\(morseCode.text) [\(morseCode.code)]"

    }

    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {

        WCSession.default().transferUserInfo(["MorseCode": morseCodes[row].code as AnyObject])

    }

}