using System.Text;
using System.Text.Json;

namespace DramaLing.Api.Services.Infrastructure.Caching;

public class JsonCacheSerializer : ICacheSerializer
{
    private readonly JsonSerializerOptions _options;
    private readonly ILogger<JsonCacheSerializer> _logger;

    public JsonCacheSerializer(ILogger<JsonCacheSerializer> logger)
    {
        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
        _options = new JsonSerializerOptions
        {
            PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
            WriteIndented = false
        };
    }

    public byte[] Serialize<T>(T value) where T : class
    {
        try
        {
            var json = JsonSerializer.Serialize(value, _options);
            return Encoding.UTF8.GetBytes(json);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Error serializing cache value of type {Type}", typeof(T).Name);
            throw;
        }
    }

    public T? Deserialize<T>(byte[] data) where T : class
    {
        try
        {
            var json = Encoding.UTF8.GetString(data);
            return JsonSerializer.Deserialize<T>(json, _options);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Error deserializing cache data to type {Type}", typeof(T).Name);
            return null;
        }
    }
}