Derive Codable2

gistfile1.txt

import Foundation

public struct CaseInsensitiveString: Codable {
    
    let value: String
    
    public init(caseInsensitiveString: CaseInsensitiveString) {
        
        self.value = caseInsensitiveString.value
    }
}

extension CaseInsensitiveString: ExpressibleByStringLiteral {
    
    public typealias StringLiteralType = String
    
    public init(unicodeScalarLiteral value: UnicodeScalar) {
        
        self.value = "\(value)"
    }
    
    public init(extendedGraphemeClusterLiteral value: String) {
        
        self.value = value
    }
    
    public init(stringLiteral value: String) {
        
        self.value = value
    }
}

extension CaseInsensitiveString: CustomStringConvertible {
    
    public var description: String {
        
        return self.value
    }
}

extension CaseInsensitiveString: StringInterpolationConvertible {
    
    public init(stringInterpolation strings: CaseInsensitiveString...) {
        
        self.value = strings.reduce("") { acc, cis in let newAcc = acc+cis.description; return newAcc }
    }
    
    public init<T>(stringInterpolationSegment expr: T) {
        self.value = "\(expr)"
    }
}

extension CaseInsensitiveString: Equatable { }

public func ==(lhs: CaseInsensitiveString, rhs: CaseInsensitiveString) -> Bool {
    
    return lhs.value.caseInsensitiveCompare(rhs.value) == ComparisonResult.orderedSame
}

public func +(lhs: CaseInsensitiveString, rhs: CaseInsensitiveString) -> CaseInsensitiveString {
    
    return CaseInsensitiveString(stringLiteral: lhs.value + rhs.value)
}

public enum ItemSourceType: CaseInsensitiveString, Codable {
    
    case event      = "EVENT"           // This we don't have
    case topic      = "FollowedTopic"
    case gd         = "GD"              // This we don't have
    case rat        = "RealAge"
    case campaign   = "Campaign"
    case general    = "General"
}