//
//  CommonTextFieldSearch.swift
//  Wallet
//
//  Created by Saveliy Stavitsky on 2/9/21.
//  Copyright © 2021 AM. All rights reserved.
//

import UIKit

@objc protocol CommonTextFieldSearchDelegate: AnyObject {
    @objc optional func textFieldShouldBeginEditing(_ textField: CommonTextFieldSearch) -> Bool
    @objc optional func textFieldShouldEndEditing(_ textField: CommonTextFieldSearch) -> Bool
    @objc optional func textField(_ textField: CommonTextFieldSearch, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool
    @objc optional func textFieldShouldClear(_ textField: CommonTextFieldSearch) -> Bool
    @objc optional func textFieldDidChange(_ textField: CommonTextFieldSearch)
}

class CommonTextFieldSearch: CommonViewCustom {

    @IBOutlet private var searchImageView: UIImageView!
    @IBOutlet private var searchTextField: UITextField!
    @IBOutlet var clearButtton: UIButton!

    @IBOutlet weak var delegate: CommonTextFieldSearchDelegate?

    @IBInspectable public var lzPlaceholder: String? {
        get { searchTextField.placeholder }
        set { searchTextField.attributedPlaceholder = newValue?.localized.attributed(style: .medium, size: 14, color: Asset.textPebble.color) }
    }

    @IBInspectable var text: String? {
        get { searchTextField.text }
        set { searchTextField.text = newValue }
    }

    var keyboardType: UIKeyboardType {
        get { searchTextField.keyboardType }
        set { searchTextField.keyboardType = newValue }
    }

    override func setup() {
        super.setup()

        searchTextField.clearButtonMode = .never
        searchTextField.font = .font(style: .medium, size: 14)
        searchTextField.textColor = Asset.textGranite.color
        searchTextField.delegate = self
    }

    @IBAction func clearPressed(_ sender: Any) {
        searchTextField.text = ""
        searchTextField.resignFirstResponder()
        clearButtton.isHidden = true
        _ = delegate?.textFieldShouldClear?(self)
        delegate?.textFieldDidChange?(self)
    }
    
    @discardableResult override func resignFirstResponder() -> Bool { searchTextField.resignFirstResponder() }
    override var isFirstResponder: Bool { searchTextField.isFirstResponder }
    @discardableResult override func becomeFirstResponder() -> Bool { searchTextField.becomeFirstResponder() }
    
}

extension CommonTextFieldSearch: UITextFieldDelegate {
    func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool { delegate?.textFieldShouldBeginEditing?(self) ?? true }
    func textFieldShouldEndEditing(_ textField: UITextField) -> Bool { delegate?.textFieldShouldEndEditing?(self) ?? true }
    func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
        let needsChanges = self.delegate?.textField?(self, shouldChangeCharactersIn: range, replacementString: string)
        if needsChanges == nil || needsChanges == false {
            self.delegate?.textFieldDidChange?(self)
        }
        clearButtton.isHidden = textField.text?.isEmpty ?? true
        return needsChanges ?? true
    }
}