//
//  TestSheetKeyboard.swift
//  toushare
//
//  Created by James Mallison on 27/12/2021.
//

import SwiftUI

struct TestKeyboard: View {
//   @State var showingSheet = false
    @State var str: String = ""
    @State var num: Float = 1.2
////
    @FocusState private var focusedField: Field?
    private enum Field: Int, CaseIterable {
        case amount
        case str
    }
//
    var body: some View {
        VStack {
            Spacer()

            TextField("A text field here", text: $str)
                .focused($focusedField, equals: .str)

            TestTextField(value: $num)
                .focused($focusedField, equals: .amount)

            Text("HELLO WORLD")

            Spacer()
        }
    }

}


struct TestKeyboard_Previews: PreviewProvider {
    static var previews: some View {
        TestKeyboard()
    }
}

// This is what I took and slightly modified to work with Floats.
// Maybe not the best way using String(value). There's no Formatter use working here either...
struct TestTextField: UIViewRepresentable {
    @Binding var value: Float

    var keyType: UIKeyboardType = .decimalPad
    var formatter: Formatter = FloatNumberFormatter()

    func makeUIView(context: Context) -> UITextField {
        let textfield = UITextField()

      textfield.keyboardType = keyType
        let toolBar = UIToolbar(frame: CGRect(x: 0, y: 0, width: textfield.frame.size.width, height: 44))
        let doneButton = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(textfield.doneButtonTapped(button:)))
        toolBar.items = [doneButton]
        toolBar.setItems([doneButton], animated: true)
        textfield.inputAccessoryView = toolBar
        return textfield
    }

    func updateUIView(_ uiView: UITextField, context: Context) {
        uiView.text = String(value)
    }
}

extension  UITextField{
    @objc func doneButtonTapped(button:UIBarButtonItem) -> Void {
       self.resignFirstResponder()
    }
}