using CMSMicroservice.Application.NetworkMembershipCQ.Queries.GetNetworkTree;
using CMSMicroservice.Protobuf.Protos.NetworkMembership;
using CMSMicroservice.Domain.Enums;

namespace CMSMicroservice.WebApi.Common.Mappings;

public class NetworkMembershipProfile : IRegister
{
    void IRegister.Register(TypeAdapterConfig config)
    {
        // Request mapping
        config.NewConfig<GetNetworkTreeRequest, GetNetworkTreeQuery>()
            .Map(dest => dest.UserId, src => src.UserId)
            .Map(dest => dest.MaxDepth, src => src.MaxDepth != null && src.MaxDepth.Value > 0 ? src.MaxDepth.Value : 3);

        // Response mapping: تبدیل درخت به لیست مسطح
        config.NewConfig<NetworkTreeDto, GetNetworkTreeResponse>()
            .MapWith(src => ConvertTreeToResponse(src));
    }

    private static GetNetworkTreeResponse ConvertTreeToResponse(NetworkTreeDto? treeDto)
    {
        var response = new GetNetworkTreeResponse();
        
        if (treeDto == null)
        {
            return response;
        }

        // تبدیل درخت به لیست مسطح
        FlattenTree(treeDto, response.Nodes, null);
        
        return response;
    }

    private static void FlattenTree(NetworkTreeDto node, Google.Protobuf.Collections.RepeatedField<NetworkTreeNodeModel> nodesList, long? parentId)
    {
        var protoNode = new NetworkTreeNodeModel
        {
            UserId = node.UserId,
            UserName = $"{node.FirstName} {node.LastName}".Trim(),
            NetworkLeg = (int)(node.LegPosition ?? NetworkLeg.Left),
            NetworkLevel = node.CurrentDepth,
            IsActive = true
        };

        if (parentId.HasValue)
        {
            protoNode.ParentId = parentId.Value;
        }

        nodesList.Add(protoNode);

        // بازگشتی برای فرزندان
        if (node.LeftChild != null)
        {
            FlattenTree(node.LeftChild, nodesList, node.UserId);
        }

        if (node.RightChild != null)
        {
            FlattenTree(node.RightChild, nodesList, node.UserId);
        }
    }
}