using Google.Protobuf;
using Google.Protobuf.WellKnownTypes;


using ServerCore;
using ServerBase;
using ServerCommon.BusinessLogDomain;
using MetaAssets;


using WORLD_META_ID = System.UInt32;


namespace ServerCommon;

public static class ServerMetricsHelper
{
    public static async Task<(Result, List<ServerInfo>)> getServerInfoAll(this IWithServerMetrics serverMetrics)
    {
        var result = new Result();

        var server_metrics_request = serverMetrics.getServerMetricsCacheRequest();
        NullReferenceCheckHelper.throwIfNull(server_metrics_request, () => $"server_metrics_request is null - {serverMetrics.toBasicString()}");
        var handler_type = (uint)ServerMetricsCacheRequest.TriggerType.ServerMetrics_AllGetAndFill;
        var world_meta_ids = new List<WORLD_META_ID>();
        foreach (var worldData in MetaData.Instance._WorldMetaTable)
        {
            world_meta_ids.Add((WORLD_META_ID)worldData.Value.Id);
        }

        var with_result = await server_metrics_request.tryRunTriggerHandler(handler_type, world_meta_ids);
        if (with_result.Result.isFail())
        {
            return (with_result.Result, new List<ServerInfo>());
        }
        if (with_result.isResultOnly())
        {
            return (result, new List<ServerInfo>());
        }

        var result_value_server_info = with_result as ResultValue<List<ServerInfo>>;
        NullReferenceCheckHelper.throwIfNull(result_value_server_info, () => $"result_value_server_info is null - {serverMetrics.toBasicString()}");

        return (result, result_value_server_info.ValueOfResult);
    }
}