using Microsoft.Extensions.Configuration;
using Newtonsoft.Json.Linq;


using ServerCore;


public class ConfigManagerConfigurationProvider : ConfigurationProvider
{
    private readonly ConfigManager m_config_manager;

    public ConfigManagerConfigurationProvider(ConfigManager configManager)
    {
        m_config_manager = configManager;

        Load();
    }

    public override void Load()
    {
        var data = new Dictionary<string, string>();

        foreach (var jObj in m_config_manager.getAllPaths())
        {
            var jtoken = m_config_manager.getRawJsonByPath(jObj);
            if (jtoken == null) continue;

            flattenJson(jtoken, data, parentPath: null);
        }

        Data = data!;
    }

    private void flattenJson(JToken token, IDictionary<string, string> data, string? parentPath)
    {
        NullReferenceCheckHelper.throwIfNull(token, () => $"token is null !!!");

        switch (token.Type)
        {
            case JTokenType.Object:
                foreach (var prop in (JObject)token)
                {
                    var path = parentPath == null ? prop.Key : $"{parentPath}:{prop.Key}";
                    NullReferenceCheckHelper.throwIfNull(prop.Value, () => $"prop.Value is null !!!");
                    flattenJson(prop.Value, data, path);
                }
                break;

            case JTokenType.Array:
                var index = 0;
                foreach (var item in (JArray)token)
                {
                    var path = $"{parentPath}:{index++}";
                    flattenJson(item, data, path);
                }
                break;

            default:
                if (token is JValue value && parentPath != null)
                {
                    data[parentPath] = value.ToString();
                }
                break;
        }
    }
}