/*

Copyright (C) 2017 Apple Inc. All Rights Reserved.

See LICENSE.txt for this sample’s licensing information

Abstract:

Data source of city names.

*/

import Foundation

import UIKit

class CitiesDataSource: NSObject, UITableViewDataSource

{

    fileprivate var cities: [String] = []

    override init() {

        super.init()

        let citiesJSONURL =

            URL(fileURLWithPath: Bundle.main.path(forResource: "Cities", ofType: "json")!)

        do {

            let citiesJSONData = try Data(contentsOf: citiesJSONURL)

            let jsonObject = try JSONSerialization.jsonObject(with: citiesJSONData,

                                                              options: JSONSerialization.ReadingOptions(rawValue: UInt(0)))

            if let jsonCities = jsonObject as? [String] {

                cities = jsonCities

            }

        }

        catch {

            //..

        }

    }

    @objc func city(index: Int) -> String {

        return cities[index]

    }

    // MARK: - UITableViewDataSource

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

        return cities.count

    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let flavor = cities[indexPath.row]

        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)

        cell.textLabel?.text = flavor

        return cell

    }

}