//
//  SortController.swift
//  CapCollector
//
//  Created by Christoph on 12.11.18.
//  Copyright © 2018 CH. All rights reserved.
//

import UIKit

enum SortCriteria: Int {
    case id = 0
    case name = 1
    case count = 2
    case match = 3
}

protocol SortControllerDelegate {
    
    func sortController(didSelect sortType: SortCriteria, ascending: Bool)
}

class SortController: UITableViewController {
    
    var selected: SortCriteria = .count
    
    var ascending: Bool = true
    
    var delegate: SortControllerDelegate?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let height = Cap.hasMatches ? 310 : 270
        preferredContentSize = CGSize(width: 200, height: height)
    }
    
    private func setCell() {
        for i in 0..<4 {
            let index = IndexPath(row: i, section: 1)
            let cell = tableView.cellForRow(at: index)
            cell?.accessoryType = i == selected.rawValue ? .checkmark : .none
        }
        let index = IndexPath(row: 0, section: 0)
        let cell = tableView.cellForRow(at: index)
        cell?.accessoryType = ascending ? .checkmark : .none
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        
        setCell()
    }
    
    private func giveFeedback(_ style: UIImpactFeedbackGenerator.FeedbackStyle) {
        let generator = UIImpactFeedbackGenerator(style: style)
        generator.impactOccurred()
    }

    // MARK: - Table view data source

    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        tableView.deselectRow(at: indexPath, animated: true)
        guard indexPath.section == 1 else {
            ascending = !ascending
            setCell()
            delegate?.sortController(didSelect: selected, ascending: ascending)
            giveFeedback(.light)
            return
        }
        giveFeedback(.medium)
        selected = SortCriteria(rawValue: indexPath.row)!
        delegate?.sortController(didSelect: selected, ascending: ascending)
        self.dismiss(animated: true)
    }
    
    override func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? {
        guard indexPath.row == 3 else { return indexPath }
        return Cap.hasMatches ? indexPath : nil
    }

    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    }
    */

}