/*

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

    See LICENSE.txt for this sample’s licensing information

    Abstract:

    A SubmenuTableViewController displays a second-level menu for those code sample groups that have 

                more than one code sample.

*/

import UIKit

class SubmenuTableViewController: UITableViewController {

    // MARK: - Properties

    var codeSamples = [CodeSample]()

    var groupTitle: String?

    override func viewDidLoad() {

        super.viewDidLoad()

        if let groupTitle = groupTitle {

            navigationItem.title = groupTitle

        }

        navigationItem.hidesBackButton = (navigationController!.viewControllers.first?.navigationItem.hidesBackButton)!

    }

    // MARK: - Table view data source

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {

        return 1

    }

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

        return codeSamples.count

    }

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

        let codeSample = codeSamples[indexPath.row]

        let cell = tableView.dequeueReusableCellWithIdentifier("SubmenuItem", forIndexPath: indexPath) as! SubmenuTableViewCell

        cell.submenuLabel.text = codeSample.title

        return cell

    }

    // MARK: - Navigation

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

        if segue.identifier == "ShowCodeSampleFromSubmenu" {

            let codeSampleViewController = segue.destinationViewController as! CodeSampleViewController

            if let selectedCell = sender as? SubmenuTableViewCell {

                let indexPath = tableView.indexPathForCell(selectedCell)!

                codeSampleViewController.selectedCodeSample = codeSamples[indexPath.row]

            }

        }

    }

}