using CMSMicroservice.Protobuf.Protos.Configuration;

namespace BackOffice.BFF.Application.ConfigurationCQ.Queries.GetAllConfigurations;

public class GetAllConfigurationsQueryHandler : IRequestHandler<GetAllConfigurationsQuery, GetAllConfigurationsResponseDto>
{
    private readonly IApplicationContractContext _context;

    public GetAllConfigurationsQueryHandler(IApplicationContractContext context)
    {
        _context = context;
    }

    public async Task<GetAllConfigurationsResponseDto> Handle(GetAllConfigurationsQuery request, CancellationToken cancellationToken)
    {
        var grpcRequest = new GetAllConfigurationsRequest
        {
            PaginationState = new CMSMicroservice.Protobuf.Protos.PaginationState
            {
                PageNumber = request.PageIndex,
                PageSize = request.PageSize
            }
        };

        if (request.Scope.HasValue || request.IsActive.HasValue)
        {
            grpcRequest.Filter = new GetAllConfigurationsFilter();
            
            if (request.Scope.HasValue)
            {
                grpcRequest.Filter.Scope = request.Scope.Value;
            }

            if (request.IsActive.HasValue)
            {
                grpcRequest.Filter.IsActive = request.IsActive.Value;
            }
        }

        var response = await _context.Configurations.GetAllConfigurationsAsync(grpcRequest, cancellationToken: cancellationToken);

        var result = new GetAllConfigurationsResponseDto
        {
            MetaData = new MetaDataDto
            {
                TotalCount = (int)(response.MetaData?.TotalCount ?? 0),
                PageSize = (int)(response.MetaData?.PageSize ?? request.PageSize),
                CurrentPage = (int)(response.MetaData?.CurrentPage ?? request.PageIndex),
                TotalPages = (int)(response.MetaData?.TotalPage ?? 0)
            },
            Models = response.Models.Select(m => new ConfigurationDto
            {
                Id = m.Id,
                Key = m.Key,
                Value = m.Value,
                Description = m.Description,
                Scope = m.Scope,
                ScopeDisplay = GetScopeDisplay(m.Scope),
                IsActive = m.IsActive,
                Created = m.Created?.ToDateTime() ?? DateTime.UtcNow
            }).ToList()
        };

        return result;
    }

    private string GetScopeDisplay(int scope)
    {
        return scope switch
        {
            0 => "سیستم",
            1 => "شبکه",
            2 => "باشگاه",
            3 => "کمیسیون",
            _ => "نامشخص"
        };
    }
}