BytesValue.cs

// <copyright file="BytesValue.cs" company="Selenium Committers">
// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
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// regarding copyright ownership.  The SFC licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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using System;
using System.Text.Json.Serialization;

namespace OpenQA.Selenium.BiDi.Network;

[JsonPolymorphic(TypeDiscriminatorPropertyName = "type")]
[JsonDerivedType(typeof(StringBytesValue), "string")]
[JsonDerivedType(typeof(Base64BytesValue), "base64")]
public abstract record BytesValue
{
    public static implicit operator BytesValue(string value) => new StringBytesValue(value);
    public static implicit operator BytesValue(byte[] value) => new Base64BytesValue(value);

    public static explicit operator string(BytesValue value)
    {
        if (value is StringBytesValue stringBytesValue)
        {
            return stringBytesValue.Value;
        }

        throw new InvalidCastException($"Cannot cast '{value.GetType()}' to '{typeof(string)}'.");
    }
}

public sealed record StringBytesValue(string Value) : BytesValue;

public sealed record Base64BytesValue(ReadOnlyMemory<byte> Value) : BytesValue;