//
//  TournamentStats.swift
//  TournamentStats
//
//  Created by Laurent Morvillier on 10/06/2019.
//  Copyright © 2019 Stax River. All rights reserved.
//

import Foundation
import UIKit

class TournamentStats : NSObject, HTMLRepresentable, UITableViewDelegate, UITableViewDataSource, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
    
    var entries: Double
    var buyin: Double
    var prizepool: Double
    var firstPrize: Double
    
    init(entries: Double, buyin: Double, prizepool: Double, firstPrize: Double) {
        
        self.entries = entries
        self.buyin = buyin
        self.prizepool = prizepool
        self.firstPrize = firstPrize
        
        super.init()
        
    }
    
    func columnDescriptors() -> [ColumnDescriptor] {
        return []
    }
    
    func cellValues() -> [String] {
        return []
    }
    
    func htmlHeaders() -> String {
        return ""
    }
    
    func html() -> String {

        var strings: [(String, String)] = []
        strings.append(("Entries", NumberFormatter().string(from: NSNumber(value: self.entries))!))
        strings.append(("Buy-in", Formatter.currency.string(from: NSNumber(value: self.buyin))!))
        strings.append(("Prizepool", Formatter.currency.string(from: NSNumber(value: self.prizepool))!))
        strings.append(("Earnings", Formatter.currency.string(from: NSNumber(value: self.firstPrize))!))

        var all = ""
        strings.forEach { (tuple) in
            let table = [tuple.0, tuple.1]
            let joined = table.joined(separator: "</td><td>")
            all.append("<tr><td>")
            all.append(joined)
            all.append("</td></tr>\n")
        }
        return all
    }
    
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 4
    }
    
    fileprivate let FONTSIZE: CGFloat = 18.0
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = UITableViewCell()
        cell.backgroundColor = UIColor.clear
        
        var cells: (String, String)
        switch indexPath.row {
        case 0:
            cells = ("Entries", NumberFormatter().string(from: NSNumber(value: self.entries))!)
        case 1:
            cells = ("Buy-in", Formatter.currency.string(from: NSNumber(value: self.buyin))!)
        case 2:
            cells = ("Prizepool", Formatter.currency.string(from: NSNumber(value: self.prizepool))!)
        default:
            cells = ("Earnings", Formatter.currency.string(from: NSNumber(value: self.firstPrize))!)
        }
        
        var leftAnchor = cell.contentView.leftAnchor
        for i in 0..<2 {
            
            let labelContainer: UIView = UIView()
            cell.contentView.addSubview(labelContainer)
            labelContainer.translatesAutoresizingMaskIntoConstraints = false
            labelContainer.topAnchor.constraint(equalTo: cell.contentView.topAnchor).isActive = true
            labelContainer.bottomAnchor.constraint(equalTo: cell.contentView.bottomAnchor).isActive = true
            let leftPadding: CGFloat = (i == 0) ? 0.0 : 0.0 //16.0
            labelContainer.leftAnchor.constraint(equalTo: leftAnchor, constant: leftPadding).isActive = true
            leftAnchor = labelContainer.rightAnchor
            
            labelContainer.widthAnchor.constraint(equalTo: cell.contentView.widthAnchor, multiplier: 0.5).isActive = true
            
            let label: UILabel = UILabel(frame: CGRect.zero)
            label.textColor = UIColor.white
            label.backgroundColor = UIColor.clear
            label.text = (i == 0) ? cells.0 : cells.1
            label.font = (i == 0) ? UIFont.boldSystemFont(ofSize: FONTSIZE) : UIFont.systemFont(ofSize: FONTSIZE)
            label.textAlignment = (i == 1) ? .right : .left
            labelContainer.addSubview(label)
            
            label.translatesAutoresizingMaskIntoConstraints = false
            label.topAnchor.constraint(equalTo: labelContainer.topAnchor).isActive = true
            label.bottomAnchor.constraint(equalTo: labelContainer.bottomAnchor).isActive = true
            label.leftAnchor.constraint(equalTo: labelContainer.leftAnchor, constant: 8.0).isActive = true
            label.rightAnchor.constraint(equalTo: labelContainer.rightAnchor, constant: -8.0).isActive = true
            
        }
        return cell
    }
    
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return 36.0
    }
    
    func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
        return 0.1
    }

    
    // MARK: - UICollectionViewDataSource
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return 4
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Stat", for: indexPath) as! StatCollectionViewCell
        
        let name: String
        let value: String
        switch indexPath.row {
        case 0:
            name = "Entries"
            value = NumberFormatter().string(from: NSNumber(value: self.entries))!
        case 1:
            name = "Buy-in".uppercased()
            value = Formatter.currency.string(from: NSNumber(value: self.buyin))!
        case 2:
            name = "Prizepool".uppercased()
            value = Formatter.currency.string(from: NSNumber(value: self.prizepool))!
        case 3:
            name = "First prize".uppercased()
            value = Formatter.currency.string(from: NSNumber(value: self.firstPrize))!
        default:
            name = ""
            value = ""
        }
        cell.nameLabel.text = name.uppercased()
        cell.valueLabel.text = value
        
        cell.nameLabel.textColor = UIColor.white
        cell.valueLabel.textColor = UIColor.white
        
        cell.nameLabel.font = Fonts.regular
        cell.valueLabel.font = Fonts.bigNumbers
        
        return cell
    }
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        return CGSize(width: 380.0, height: 90.0)
    }
    
}