//
//  SwitchLineItem.swift
//  MVMCoreUI
//
//  Created by Priya on 5/6/19.
//  Copyright © 2019 Verizon Wireless. All rights reserved.
//

import UIKit

@objcMembers public class Switch: ViewConstrainingView, FormValidationProtocol{
    public var mvmSwitch = MVMCoreUISwitch()
    public var label = Label()
    public var leftContainerView = UIView()
    public var mfTextButton = MFTextButton(nil, constrainHeight: true, forWidth: 0)
    var isRequired = false
    var delegateObject: DelegateObject?
    
    @objc func switchChanged() {
       let delegate = delegateObject as? MVMCoreUIDelegateObject
        if let delegate = delegate {
            let formValidator = delegate.formValidationProtocol?.formValidatorModel?()
            formValidator?.enableByValidation()
        }
    }
   
    open override func setupView() {
        super.setupView()
        mvmSwitch.addTarget(self, action: #selector(Switch.switchChanged), for: .valueChanged)
        leftContainerView.addSubview(label)
        leftContainerView.addSubview(mfTextButton)
        addSubview(leftContainerView)
        addSubview(mvmSwitch)
        
        leftContainerView.translatesAutoresizingMaskIntoConstraints = false
        mvmSwitch.translatesAutoresizingMaskIntoConstraints = false
        mfTextButton.translatesAutoresizingMaskIntoConstraints = false
        label.translatesAutoresizingMaskIntoConstraints = false
        setupContainerConstraints()
    }
    
    public override func updateView(_ size: CGFloat) {
        super.updateView(size)
        label.updateView(size)
        mvmSwitch.updateView(size)
        mfTextButton.updateView(size)
    }
    
    open override func setWithJSON(_ json: [AnyHashable: Any]?, delegateObject: DelegateObject?, additionalData: [AnyHashable: Any]?) {
        super.setWithJSON(json, delegateObject: delegateObject, additionalData: additionalData)
        isRequired = json?[KeyRequired] as? Bool ?? false
        self.delegateObject = delegateObject
        label.setWithJSON(json?.optionalDictionaryForKey("label"), delegateObject: delegateObject, additionalData: additionalData)
        mfTextButton.setWithJSON(json?.optionalDictionaryForKey("textButton"), delegateObject: delegateObject, additionalData: additionalData)
        if let delegateObject = delegateObject as? MVMCoreUIDelegateObject {
            FormValidator.setupValidation(molecule: self, delegate: delegateObject.formValidationProtocol)
        }
        if let onColorString = json?.optionalStringForKey("onTintColor") {
            mvmSwitch.onTintColor = .mfGet(forHex: onColorString)
        }
        if let offColorString = json?.optionalStringForKey("offTintColor") {
            mvmSwitch.offTintColor = .mfGet(forHex: offColorString)
        }
        if let onKnobColorString = json?.optionalStringForKey("onKnobTintColor") {
             mvmSwitch.onKnobTintColor = .mfGet(forHex: onKnobColorString)
        }
        if let offKnobColorString = json?.optionalStringForKey("offKnobTintColor") {
            mvmSwitch.offKnobTintColor = .mfGet(forHex: offKnobColorString)
        }
        mvmSwitch.setState(json?.optionalBoolForKey("state") ?? false, animated: true)
        // if left container no width
        if (label.text?.count ?? 0) <= 0 && (mfTextButton.titleLabel?.text?.count ?? 0) <= 0 {
            mvmSwitch.leadingAnchor.constraint(equalTo: leadingAnchor, constant: 0).isActive = true
        }
    }
   
    func setupContainerConstraints() {
        leftContainerView.topAnchor.constraint(greaterThanOrEqualTo: topAnchor).isActive = true
        
        var constraint = leftContainerView.topAnchor.constraint(equalTo: topAnchor)
        constraint.priority = UILayoutPriority(249)
        constraint.isActive = true
    
        mvmSwitch.topAnchor.constraint(greaterThanOrEqualTo: topAnchor).isActive = true
        
        constraint = mvmSwitch.topAnchor.constraint(equalTo: topAnchor)
        constraint.priority = UILayoutPriority(249)
        constraint.isActive = true
        
        trailingAnchor.constraint(equalTo: mvmSwitch.trailingAnchor).isActive = true
        
        constraint = bottomAnchor.constraint(equalTo: mvmSwitch.bottomAnchor)
        constraint.priority = UILayoutPriority(249)
        constraint.isActive = true
        
        bottomAnchor.constraint(greaterThanOrEqualTo: mvmSwitch.bottomAnchor).isActive = true
       
        constraint = bottomAnchor.constraint(equalTo: leftContainerView.bottomAnchor)
        constraint.isActive = true
        
        bottomAnchor.constraint(greaterThanOrEqualTo: leftContainerView.bottomAnchor).isActive = true
        leftContainerView.leadingAnchor.constraint(equalTo: leadingAnchor).isActive = true
        
        NSLayoutConstraint.constraintPinSubview(leftContainerView, pinCenterX: false, pinCenterY: true)
        constraint = mvmSwitch.leadingAnchor.constraint(greaterThanOrEqualTo: leftContainerView.trailingAnchor)
        constraint.priority = UILayoutPriority(999)
        constraint.isActive = true
        NSLayoutConstraint.constraintPinSubview(mvmSwitch, pinCenterX: false, pinCenterY: true)
        
        leftContainerView.topAnchor.constraint(equalTo: label.topAnchor).isActive = true
        leftContainerView.trailingAnchor.constraint(greaterThanOrEqualTo: label.trailingAnchor).isActive = true

        constraint = leftContainerView.trailingAnchor.constraint(equalTo: label.trailingAnchor)
        constraint.priority = UILayoutPriority(249)
        constraint.isActive = true
        
        leftContainerView.trailingAnchor.constraint(greaterThanOrEqualTo: mfTextButton.trailingAnchor).isActive = true
        
        constraint = leftContainerView.trailingAnchor.constraint(equalTo: mfTextButton.trailingAnchor)
        constraint.priority = UILayoutPriority(249)
        constraint.isActive = true
        
        leftContainerView.bottomAnchor.constraint(equalTo: mfTextButton.bottomAnchor).isActive = true
        mfTextButton.leadingAnchor.constraint(equalTo: leftContainerView.leadingAnchor).isActive = true
        label.leadingAnchor.constraint(equalTo: leftContainerView.leadingAnchor).isActive = true
        mfTextButton.topAnchor.constraint(equalTo: label.bottomAnchor).isActive = true
        leftContainerView.setContentHuggingPriority(.defaultHigh, for: .horizontal)
        mvmSwitch.setContentHuggingPriority(.defaultLow, for: .horizontal)
    
    }

    public func isValidField() -> Bool {
        return (isRequired == false) ? true : mvmSwitch.isOn
    }
    
    public func formFieldName() -> String? {
        return json?.optionalStringForKey(KeyFieldKey)
    }
    
    public func formFieldValue() -> Any? {
        return mvmSwitch.isOn
    }
    
    public override func needsToBeConstrained() -> Bool {
        return true
    }
    
    public override func moleculeAlignment() -> UIStackView.Alignment {
        return UIStackView.Alignment.leading
    }

}