//
//  PickerBase.swift
//  VDSSample
//
//  Created by Matt Bruce on 8/1/22.
//

import Foundation
import UIKit
import VDS

protocol PickerViewable {
    associatedtype EnumType: RawRepresentable
    var items: [EnumType] { get set }
    var onPickerDidSelect: ((EnumType) -> Void)? { get set }
}

class PickerBase<EnumType: RawRepresentable>: NSObject, PickerViewable, UIPickerViewDataSource, UIPickerViewDelegate {
    var items: [EnumType]
    var onPickerDidSelect: ((EnumType) -> Void)?

    init(items: [EnumType]) {
        self.items = items
        super.init()
    }
    
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        1
    }
    
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        items.count + 1
    }
    
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int  ) -> String? {
        guard  row > 0, let item = items[row-1].rawValue as? String else { return "" }
        return item
    }
    
    func pickerView( _ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        onPickerDidSelect?(items[row-1])
        pickerView.isHidden = true
    }
}

class SurfacePicker: PickerBase<Surface> {
    init(){
        super.init(items: [.light, .dark])
    }
}

class TextPositionPicker: PickerBase<VDSTextPosition> {
    init(){
        super.init(items: [.left, .right])
    }
}

class TextSizePicker: PickerBase<VDSFontSize> {
    init(){
        super.init(items: [.small, .large])
    }
}

class FontWeightPicker: PickerBase<VDSFontWeight> {
    init(){
        super.init(items: [.regular, .bold])
    }
}