//
//  Img.swift
//  HTMLStandard
//
//  Generated on 09/23/2025. 
//  THIS FILE IS GENERATED. DO NOT EDIT.
//
import Foundation

/// <img> Image
public class Img : HTMLNode, IEmbedded, IFlow, IFormAssociated, IInteractive, IPalpable, IPhrasing {

    public enum Crossorigin : String, CaseIterable {

        case anonymous
        case useCredentials = "use-credentials"

        public init?(rawValue: Substring) {
            guard
                let value = Self.allCases.first(where: { $0.rawValue == rawValue })
            else
                { return nil }
            
            self = value
        }
        
        public init(expect: Substring) throws {
            guard
                let value = Self.allCases.first(where: { $0.rawValue == expect })
            else
                { throw AppError("Unexpected value for Crossorigin: \(expect)") }
            
            self = value
        }
        
        public init(expect: String) throws {
            guard let result = Crossorigin(rawValue: expect) else {
                throw AppError("Unexpected value for Crossorigin: \(expect)")
            }
            self = result
        }
        
        static func parseList(_ value:String?, _ separator:String = " ") throws -> [Crossorigin] {
            guard let value = value else { return [] }
            var iterator = value.componentsIterator(separatedBy: separator)
            let result = try iterator.map { input in
                return try expect(Crossorigin(rawValue: input), "unexpected value for Crossorigin: \(input)")
            }
            return result
        }
    }

    public enum Decoding : String, CaseIterable {

        case async
        case auto
        case sync

        public init?(rawValue: Substring) {
            guard
                let value = Self.allCases.first(where: { $0.rawValue == rawValue })
            else
                { return nil }
            
            self = value
        }
        
        public init(expect: Substring) throws {
            guard
                let value = Self.allCases.first(where: { $0.rawValue == expect })
            else
                { throw AppError("Unexpected value for Decoding: \(expect)") }
            
            self = value
        }
        
        public init(expect: String) throws {
            guard let result = Decoding(rawValue: expect) else {
                throw AppError("Unexpected value for Decoding: \(expect)")
            }
            self = result
        }
        
        static func parseList(_ value:String?, _ separator:String = " ") throws -> [Decoding] {
            guard let value = value else { return [] }
            var iterator = value.componentsIterator(separatedBy: separator)
            let result = try iterator.map { input in
                return try expect(Decoding(rawValue: input), "unexpected value for Decoding: \(input)")
            }
            return result
        }
    }

    public enum Loading : String, CaseIterable {

        case eager
        case lazy

        public init?(rawValue: Substring) {
            guard
                let value = Self.allCases.first(where: { $0.rawValue == rawValue })
            else
                { return nil }
            
            self = value
        }
        
        public init(expect: Substring) throws {
            guard
                let value = Self.allCases.first(where: { $0.rawValue == expect })
            else
                { throw AppError("Unexpected value for Loading: \(expect)") }
            
            self = value
        }
        
        public init(expect: String) throws {
            guard let result = Loading(rawValue: expect) else {
                throw AppError("Unexpected value for Loading: \(expect)")
            }
            self = result
        }
        
        static func parseList(_ value:String?, _ separator:String = " ") throws -> [Loading] {
            guard let value = value else { return [] }
            var iterator = value.componentsIterator(separatedBy: separator)
            let result = try iterator.map { input in
                return try expect(Loading(rawValue: input), "unexpected value for Loading: \(input)")
            }
            return result
        }
    }

    /// Replacement text for use when images are not available. Text. The actual rules are more complicated than indicated.
    public var alt:String? = nil

    /// How the element handles crossorigin requests.
    public var crossorigin:Crossorigin? = nil

    /// Decoding hint to use when processing this image for presentation.
    public var decoding:Decoding? = nil

    /// Vertical dimension. Valid non-negative integer.
    public var height:UInt? = nil

    /// Whether the image is a server-side image map.
    public var ismap:Bool = false

    /// Used when determining loading deferral.
    public var loading:Loading? = nil

    /// Referrer policy for fetches initiated by the element. Referrer policy.
    public var referrerpolicy:ReferrerPolicy? = nil

    /// Image sizes for different page layouts. Valid source size list.
    public var sizes:[String] = []

    /// Address of the resource. Valid non-empty URL potentially surrounded by spaces.
    public var src:URL? = nil

    /// Images to use in different situations (e.g., high-resolution displays, small monitors, etc.). Comma-separated list of image candidate strings.
    public var srcset:[String] = []

    /// Name of image map to use. Valid hash-name reference. The actual rules are more complicated than indicated.
    public var usemap:String? = nil

    /// Horizontal dimension. Valid non-negative integer.
    public var width:UInt? = nil


    public init(_ attributes:[String:String], _ parser:XMLParser? = nil) throws {
        var globalAttr = GlobalAttributesBuilder()
        for (key, attValue) in attributes {
            switch (key) {
                case "alt":
                    alt = attValue
                    continue
                case "crossorigin":
                    crossorigin = try Crossorigin(expect: attValue)
                    continue
                case "decoding":
                    decoding = try Decoding(expect: attValue)
                    continue
                case "height":
                    height = UInt(attValue)
                    continue
                case "ismap":
                    ismap = true
                    continue
                case "loading":
                    loading = try Loading(expect: attValue)
                    continue
                case "referrerpolicy":
                    referrerpolicy = try ReferrerPolicy(expect: attValue)
                    continue
                case "sizes":
                    sizes = try String.parseList(attValue, ",")
                    continue
                case "src":
                    src = try URL(expect: attValue)
                    continue
                case "srcset":
                    srcset = try String.parseList(attValue, ",")
                    continue
                case "usemap":
                    usemap = attValue
                    continue
                case "width":
                    width = UInt(attValue)
                    continue

                default: break
            }
            if globalAttr.trySetGlobalAttribute(key, attValue) {
                continue
            }
            throw AppError("Unexpected attribute: \(key)")
        }
        super.init(globalAttr)
    }


     public override func renderAttributes() -> String {
         var result = super.renderAttributes()
         if let alt = alt {
             result += " alt='\(alt)'"
         }
         if let crossorigin = crossorigin {
             result += " crossorigin='\(crossorigin.rawValue)'"
         }
         if let decoding = decoding {
             result += " decoding='\(decoding.rawValue)'"
         }
         if let height = height {
             result += " height='\(height)'"
         }
         if ismap {
             result += " ismap"
         }
         if let loading = loading {
             result += " loading='\(loading.rawValue)'"
         }
         if let referrerpolicy = referrerpolicy {
             result += " referrerpolicy='\(referrerpolicy.rawValue)'"
         }
         result += " sizes='\(sizes.toStringList(","))'"
         if let src = src {
             result += " src='\(src.absoluteString)'"
         }
         result += " srcset='\(srcset.toStringList(","))'"
         if let usemap = usemap {
             result += " usemap='\(usemap)'"
         }
         if let width = width {
             result += " width='\(width)'"
         }

         
         return result
     }
     
     override var nodeName: String {
         return "img"
     }
     
     override var isVoidElement: Bool {
         return true
     }
}