using AutoMapper;
using Kurs.Platform.Entities;
using System.Text.Json;
using System.Collections.Generic;

namespace Kurs.Platform.Reports
{
    public class ReportAutoMapperProfile : Profile
    {
        public ReportAutoMapperProfile()
        {
            CreateMap<ReportTemplate, ReportTemplateDto>()
                .ForMember(dest => dest.Tags, opt => opt.MapFrom(src =>
                    ConvertTagsFromJson(src.Tags)))
                .ForMember(dest => dest.Parameters, opt => opt.MapFrom(src => src.Parameters));

            CreateMap<CreateReportTemplateDto, ReportTemplate>()
                .ForMember(dest => dest.Tags, opt => opt.MapFrom(src => ConvertTagsToJson(src.Tags)))
                .ForMember(dest => dest.Parameters, opt => opt.Ignore());

            CreateMap<UpdateReportTemplateDto, ReportTemplate>()
                .ForMember(dest => dest.Tags, opt => opt.MapFrom(src => ConvertTagsToJson(src.Tags)))
                .ForMember(dest => dest.Parameters, opt => opt.Ignore());

            CreateMap<ReportParameter, ReportParameterDto>();

            CreateMap<CreateReportParameterDto, ReportParameter>()
                .ForMember(dest => dest.Id, opt => opt.Ignore())
                .ForMember(dest => dest.ReportTemplateId, opt => opt.Ignore());

            CreateMap<UpdateReportParameterDto, ReportParameter>()
                .ForMember(dest => dest.ReportTemplateId, opt => opt.Ignore());

            CreateMap<ReportGenerated, GeneratedReportDto>()
                .ForMember(dest => dest.Parameters, opt => opt.MapFrom(src =>
                    ConvertParametersFromJson(src.Parameters)))
                .ForMember(dest => dest.Template, opt => opt.MapFrom(src => src.Template));

            CreateMap<GenerateReportDto, ReportGenerated>()
                .ForMember(dest => dest.Parameters, opt => opt.MapFrom(src => ConvertParametersToJson(src.Parameters)))
                .ForMember(dest => dest.Id, opt => opt.Ignore())
                .ForMember(dest => dest.TemplateId, opt => opt.MapFrom(src => src.TemplateId))
                .ForMember(dest => dest.TemplateName, opt => opt.Ignore())
                .ForMember(dest => dest.GeneratedContent, opt => opt.Ignore())
                .ForMember(dest => dest.GeneratedAt, opt => opt.Ignore());


            CreateMap<ReportCategory, ReportCategoryDto>();
        }

        private static List<string> ConvertTagsFromJson(string tags)
        {
            if (string.IsNullOrEmpty(tags))
                return new List<string>();

            try
            {
                return JsonSerializer.Deserialize<List<string>>(tags) ?? new List<string>();
            }
            catch
            {
                return new List<string>();
            }
        }

        private static string ConvertTagsToJson(List<string> tags)
        {
            return JsonSerializer.Serialize(tags ?? new List<string>());
        }

        private static Dictionary<string, string> ConvertParametersFromJson(string parameters)
        {
            if (string.IsNullOrEmpty(parameters))
                return new Dictionary<string, string>();

            try
            {
                return JsonSerializer.Deserialize<Dictionary<string, string>>(parameters) ?? new Dictionary<string, string>();
            }
            catch
            {
                return new Dictionary<string, string>();
            }
        }

        private static string ConvertParametersToJson(Dictionary<string, string> parameters)
        {
            return JsonSerializer.Serialize(parameters ?? new Dictionary<string, string>());
        }
    }
}