//
//  TrailingTooltipLabel.swift
//  VDS
//
//  Created by Matt Bruce on 4/14/23.
//

import Foundation
import UIKit
import Combine

@objc(VDSTrailingTooltipLabel)
open class TrailingTooltipLabel: View, TooltipLaunchable {
    
    //--------------------------------------------------
    // MARK: - Private Properties
    //--------------------------------------------------
    private let toolTipAction = PassthroughSubject<Void, Never>()

    //--------------------------------------------------
    // MARK: - Public Properties
    //--------------------------------------------------
    open var label = Label()
    
    open var labelText: String? { didSet { didChange() }}

    open var labelAttributes: [any LabelAttributeModel]? { didSet { didChange() }}

    open var labelTextStyle: TextStyle = .defaultStyle { didSet { didChange() }}
    
    public lazy var textColorConfiguration: AnyColorable = {
        label.textColorConfiguration
    }() { didSet { didChange() }}
    
    open var closeButtonText: String = "Close" { didSet { didChange() }}
    
    open var tooltipSize: Tooltip.Size = .medium { didSet { didChange() }}
    
    open var tooltipTitle: String = "" { didSet { didChange() }}
    
    open var tooltipContent: String = "" { didSet { didChange() }}
    
    //--------------------------------------------------
    // MARK: - Overrides
    //--------------------------------------------------
    open override func setup() {
        super.setup()
        
        addSubview(label)
        label.pinToSuperView()
        
        //create the tooltip click event
        toolTipAction.sink { [weak self] in
            guard let self else { return }
            self.presentTooltip(surface: self.surface,
                                title: self.tooltipTitle,
                                content: self.tooltipContent,
                                closeButtonText: self.closeButtonText)
        }.store(in: &subscribers)
    }
    
    open override func updateView() {
        super.updateView()
        
        var attributes: [any LabelAttributeModel] = []
        if let labelAttributes {
            attributes.append(contentsOf: labelAttributes)
        }
        
        var updatedLabelText = labelText

        //add the tool tip
        if let oldText = updatedLabelText {
            let toolTipUpdateText = "\(oldText)  "  //create a little space between the final character and tooltip image
            let toolTipAttribute = ToolTipLabelAttribute(action: toolTipAction,
                                                location: toolTipUpdateText.count - 1,
                                                length: 1,
                                                tintColor: textColorConfiguration.getColor(self))
            updatedLabelText = toolTipUpdateText
            attributes.append(toolTipAttribute)
        }

        //set the titleLabel
        label.text = updatedLabelText
        label.attributes = attributes
        label.textStyle = labelTextStyle
        label.surface = surface
        label.disabled = disabled
    }
}