Apollo GraphQLNullable Conveniences

GQL+Conveniences.swift

import ApolloAPI
import Foundation

public extension EnumType {
    var gqlEnum: GraphQLEnum<Self> {
        GraphQLEnum(self)
    }

    /// Converts an `EnumType` into a `GraphQLNullable<GraphQLEnum<EnumType>>` for compatibility with GQL query and mutation inputs.
    var gqlEnumNullable: GraphQLNullable<GraphQLEnum<Self>> {
        .some(.case(self))
    }
}

public extension Optional where Wrapped: EnumType {
    /// Converts an optional `EnumType` into a `GraphQLEnum<EnumType>` for compatibility with GQL query and mutation inputs.
    var gqlEnum: GraphQLEnum<Wrapped> {
        if let self {
            return .case(self)
        }
        return .unknown("")
    }

    /// Converts an optional `EnumType` into a `GraphQLNullable<GraphQLEnum<EnumType>>` for compatibility with GQL query and mutation inputs.
    var gqlEnumNullable: GraphQLNullable<GraphQLEnum<Wrapped>> {
        if let self {
            return .some(.case(self))
        }
        return .none
    }
}

public extension String {
    /// Converts a `String` into a `GraphQLNullable<String>` for compatibility with GQL query and mutation inputs.
    var gqlNullable: GraphQLNullable<Self> {
        .some(self)
    }
}

public extension Numeric {
    /// Converts a `Numeric` into a `GraphQLNullable<Numeric>` for compatibility with GQL query and mutation inputs.
    var gqlNullable: GraphQLNullable<Self> {
        .some(self)
    }
}

public extension Bool {
    /// Converts a `Bool` into a `GraphQLNullable<Bool>` for compatibility with GQL query and mutation inputs.
    var gqlNullable: GraphQLNullable<Self> {
        .some(self)
    }
}

public extension URL {
    /// Converts a `URL` into a `GraphQLNullable<URL>` for compatibility with GQL query and mutation inputs.
    var gqlNullable: GraphQLNullable<Self> {
        .some(self)
    }
}

public extension Array {
    /// Converts an `Array<T>` into a `GraphQLNullable<Array<T>>` for compatibility with GQL query and mutation inputs.
    var gqlNullable: GraphQLNullable<Self> {
        .some(self)
    }
}

public extension Array where Element: EnumType {
    /// Converts an `Array<EnumType>` into a `GraphQLNullable<Array<GraphQLEnum<Element>>>` for compatibility with GQL query and mutation inputs.
    var gqlEnumArrayNullable: GraphQLNullable<Array<GraphQLEnum<Element>>> {
        gqlEnumArray.gqlNullable
    }

    /// Converts an `Array<EnumType>` into a `Array<GraphQLEnum<Element>>` for compatibility with GQL query and mutation inputs.
    var gqlEnumArray: Array<GraphQLEnum<Element>> {
        compactMap { $0.gqlEnum }
    }
}

public extension Optional {
    /// Converts an optional `Wrapped` into a `GraphQLNullable<Wrapped>` for compatibility with GQL query and mutation inputs.
    var gqlNullable: GraphQLNullable<Wrapped> {
        if let self {
            return .some(self)
        }
        return .none
    }
}

public extension InputObject {
    /// Converts a `InputObject` into a `GraphQLNullable<InputObject>` for compatibility with GQL query and mutation inputs.
    var gqlNullable: GraphQLNullable<Self> {
        .some(self)
    }
}