GMiOS/app/ViewController.swift

// Copyright (C) 2016 Inigo Valentin
//
// This file is part of the Gasteizko Margolariak IOS app.
//
// The Gasteizko Margolariak IOS app is free software: you can
// redistribute it and/or modify it under the terms of the
// GNU General Public License as published by the Free Software
// Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// The Gasteizko Margolariak IOS app is distributed in the
// hope that it will be useful, but WITHOUT ANY WARRANTY;
// without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
// Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with the Gasteizko Margolariak IOS app.
// If not, see <http://www.gnu.org/licenses/>.

import UIKit

/**
  The view controller of the app.
 */
class ViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
    
    //The menu collection.
    var sectionCollection: UICollectionView!

    //Each of the sections of the app.
    @IBOutlet weak var containerViewGallery: UIView!
    @IBOutlet weak var containerViewBlog: UIView!
    @IBOutlet weak var containerViewActivities: UIView!
    @IBOutlet weak var containerViewLablanca: UIView!
    @IBOutlet weak var containerViewLocation: UIView!
    @IBOutlet weak var containerViewHome: HomeView!
    
    /**
     Run when the app loads.
    */
    override func viewDidLoad() {
        
        //Hide all sections, except for the first one
        self.containerViewLocation.alpha = 0
        self.containerViewLablanca.alpha = 0
        self.containerViewActivities.alpha = 0
        self.containerViewBlog.alpha = 0
        self.containerViewGallery.alpha = 0
        
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    /**
     Dispose of any resources that can be recreated.
    */
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
    
    
    //Menu items.
    let reuseIdentifier = "cell"
    var selected = 0
    var items = ["Home", "Location", "La Blanca", "Actividades", "Blog", "Gallery"]
    
    // MARK: - UICollectionViewDataSource protocol
    
    //Tell the collection view how many cells to make
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return self.items.count
    }
    
    //Make a cell for each section
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        
        print("SET: \(selected)/\(indexPath.item)")
        
        //Get a reference to our storyboard cell
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: reuseIdentifier, for: indexPath as IndexPath) as! MenuCollectionViewCell
        
        //Set text
        cell.label.text = self.items[indexPath.item]
        
        //Mark the first cell as selected...
        if indexPath.item == selected{
            cell.bar.backgroundColor = UIColor(red: 90/255, green: 180/255, blue: 255/255, alpha: 1)
            cell.label.font = UIFont.boldSystemFont(ofSize: cell.label.font.pointSize)
        }
            
        //... and the others as unselected
        else{
            cell.bar.backgroundColor = UIColor(red: 148/255, green: 209/255, blue: 255/255, alpha: 1)
            cell.label.font = UIFont.systemFont(ofSize: cell.label.font.pointSize)
        }
        
        return cell
    }
    
    // MARK: - UICollectionViewDelegate protocol
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        sectionCollection = collectionView
        showComponent(selected: indexPath.item)
    }
    
    @IBAction func showComponent(selected: Int) {
        //Activate label
        var i = 0
        for cell in sectionCollection.visibleCells as! [MenuCollectionViewCell]{ //TODO: Not only visibles!
            if i == selected + 1{
                cell.bar.backgroundColor = UIColor(red: 90/255, green: 180/255, blue: 255/255, alpha: 1)
                cell.label.font = UIFont.boldSystemFont(ofSize: cell.label.font.pointSize)
            }
            else{
                cell.bar.backgroundColor = UIColor(red: 148/255, green: 209/255, blue: 255/255, alpha: 1)
                cell.label.font = UIFont.systemFont(ofSize: cell.label.font.pointSize)
                
            }
            i = i + 1
        }
        
        //Show the view
        if selected == 0 {
            UIView.animate(withDuration: 0.5, animations: {
                self.containerViewHome.alpha = 1
                self.containerViewLocation.alpha = 0
                self.containerViewLablanca.alpha = 0
                self.containerViewActivities.alpha = 0
                self.containerViewBlog.alpha = 0
                self.containerViewGallery.alpha = 0
            })
        }
        else if selected == 1 {
            UIView.animate(withDuration: 0.5, animations: {
                self.containerViewHome.alpha = 0
                self.containerViewLocation.alpha = 1
                self.containerViewLablanca.alpha = 0
                self.containerViewActivities.alpha = 0
                self.containerViewBlog.alpha = 0
                self.containerViewGallery.alpha = 0
            })
        }
        else if selected == 2 {
            UIView.animate(withDuration: 0.5, animations: {
                self.containerViewHome.alpha = 0
                self.containerViewLocation.alpha = 0
                self.containerViewLablanca.alpha = 1
                self.containerViewActivities.alpha = 0
                self.containerViewBlog.alpha = 0
                self.containerViewGallery.alpha = 0
            })
        }
        else if selected == 3 {
            UIView.animate(withDuration: 0.5, animations: {
                self.containerViewHome.alpha = 0
                self.containerViewLocation.alpha = 0
                self.containerViewLablanca.alpha = 0
                self.containerViewActivities.alpha = 1
                self.containerViewBlog.alpha = 0
                self.containerViewGallery.alpha = 0
            })
        }
        else if selected == 4 {
            UIView.animate(withDuration: 0.5, animations: {
                self.containerViewHome.alpha = 0
                self.containerViewLocation.alpha = 0
                self.containerViewLablanca.alpha = 0
                self.containerViewActivities.alpha = 0
                self.containerViewBlog.alpha = 1
                self.containerViewGallery.alpha = 0
            })
        }
        else if selected == 5 {
            UIView.animate(withDuration: 0.5, animations: {
                self.containerViewHome.alpha = 0
                self.containerViewLocation.alpha = 0
                self.containerViewLablanca.alpha = 0
                self.containerViewActivities.alpha = 0
                self.containerViewBlog.alpha = 0
                self.containerViewGallery.alpha = 1
            })
        }
        
    }


}