// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

#nullable disable

using System.Text.Json;
using System.Text.Json.Serialization;
using Microsoft.DotNet.Cli.NugetSearch.NugetSearchApiSerializable;

namespace Microsoft.DotNet.Cli.NugetSearch;

/// <summary>
/// Author field could be a string or a string array
/// </summary>
internal class AuthorsConverter : JsonConverter<NugetSearchApiAuthorsSerializable>
{
    public override NugetSearchApiAuthorsSerializable Read(ref Utf8JsonReader reader, Type typeToConvert,
        JsonSerializerOptions options)
    {
        if (reader.TokenType == JsonTokenType.StartArray)
        {
            var doc = JsonDocument.ParseValue(ref reader);
            var resultAuthors = doc.RootElement.EnumerateArray().Select(author => author.GetString()).ToArray();
            return new NugetSearchApiAuthorsSerializable() { Authors = resultAuthors };
        }
        else
        {
            var s = reader.GetString();
            return new NugetSearchApiAuthorsSerializable() { Authors = [s] };
        }
    }

    public override void Write(Utf8JsonWriter writer, NugetSearchApiAuthorsSerializable value,
        JsonSerializerOptions options)
    {
        // only deserialize is used
        throw new NotImplementedException();
    }
}