//
//  LabelSystemImageLabelAttribute.swift
//  VDS
//
//  Created by Matt Bruce on 10/4/22.
//

import Foundation
import UIKit

public struct ImageLabelAttribute: AttachmentLabelAttributeModel {
    public enum Error: Swift.Error {
        case bundleNotFound
        case imageNotFound(String)
    }
    public var id = UUID()
    public var location: Int
    public var length: Int
    public var imageName: String
    public var frame: CGRect
    public var tintColor: UIColor
    public static func == (lhs: ImageLabelAttribute, rhs: ImageLabelAttribute) -> Bool {
        lhs.isEqual(rhs)
    }
    
    public func isEqual(_ equatable: ImageLabelAttribute) -> Bool {
        return id == equatable.id && range == equatable.range && imageName == equatable.imageName
    }

    public func getAttachment() throws -> NSTextAttachment {
        guard let bundle = Bundle(identifier: "com.vzw.vds") else {
            throw Error.bundleNotFound
        }
        
        guard let image =  UIImage(named: imageName, in: bundle, with: nil) else {
            throw Error.imageNotFound(imageName)
        }
        
        let attachment = NSTextAttachment()
        attachment.image = image.withTintColor(tintColor)
        attachment.bounds = frame
        return attachment
    }
}