using Microsoft.AspNetCore.Authorization;
using YLErp.Cache;
using YLErp.DBModels;
using YLErp.Modules.MarginModule;

namespace YLErp.Web.Controllers
{
    public class ClientMarginConfigController : BaseController
    {
        private IYLCache _cache;
        public ClientMarginConfigController(IYLCache cache)
        {
            _cache = cache;
        }
        [MyAuthorize("互换簿记预设-互换预付金率维护")]
        public ActionResult ClientMarginConfigList()
        {
            return View();
        }

        [MyAuthorize("互换簿记预设-互换预付金率修改")]
        public ActionResult ClientMarginConfigEdit(string enid)
        {
            var id = DecryptInt(enid);
            var fixedTerms = ConsMarginTerm.AllowedTerms.ToArray();
            if (id == 0)
            {
                // 新增时，创建空的DTO记录
                var emptyDetails = new List<ClientMarginDetailDto>();
               
                for (int i = 0; i < fixedTerms.Length; i++)
                {
                    emptyDetails.Add(new ClientMarginDetailDto
                    {
                        bond_term = fixedTerms[i],
                        init_rate = null,
                        maintain_rate = null,
                        swap_days = null
                    });
                }
                ViewBag.Details = emptyDetails;
                return View(new client_margin_config() { value_date = DateTime.Now });
            }
            var marginConfig = yldb.clientMarginConfig.Find(id);
            
            // 获取详情数据并转换为DTO
            var details = yldb.clientMarginDetail.Where(d => d.config_id == id).ToList();
            var detailDtos = new List<ClientMarginDetailDto>();
            
            // 确保返回5条数据，按固定顺序
            for (int i = 0; i < fixedTerms.Count(); i++)
            {
                var term = fixedTerms[i];
                var existingDetail = details.FirstOrDefault(d => d.bond_term == term);
                if (existingDetail != null)
                {
                    detailDtos.Add(new ClientMarginDetailDto
                    {
                        bond_term = existingDetail.bond_term,
                        init_rate = existingDetail.init_rate * 100, // 转换为百分比显示
                        maintain_rate = existingDetail.maintain_rate * 100, // 转换为百分比显示
                        swap_days = existingDetail.swap_days
                    });
                }
                else
                {
                    detailDtos.Add(new ClientMarginDetailDto
                    {
                        bond_term = term,
                        init_rate = null,
                        maintain_rate = null,
                        swap_days = null
                    });
                }
            }
            
            ViewBag.Details = detailDtos;
            
            return View(marginConfig);
        }



        [MyAuthorize("互换簿记预设-互换预付金率修改")]
        public JsonResult ClientMarginConfigDelete(string enid)
        {
            var id = DecryptInt(enid);
            var marginConfig = yldb.clientMarginConfig.Find(id);
            if (marginConfig == null)
            {
                throw new ServiceException("数据库中未找到");
            }
            
            // 删除详情记录
            var details = yldb.clientMarginDetail.Where(d => d.config_id == id).ToList();
            yldb.clientMarginDetail.RemoveRange(details);
            
            // 删除主记录
            yldb.clientMarginConfig.Remove(marginConfig);
            yldb.SaveChanges();
            if (_cache != null)
            {
                var cachePattern = marginConfig.client_id == 0
                    ? "ClientMarginRate:*"
                    : $"ClientMarginRate:{marginConfig.client_id}:*";
                _cache.BatchDelete(cachePattern);
            }
            return JsonSuccess("已删除");
        }

        [MyAuthorize("互换簿记预设-互换预付金率修改")]
        public JsonResult ClientMarginConfigEditJson(client_margin_config marginConfig, List<ClientMarginDetailDto> details)
        {
            // 将DTO转换为数据库实体，处理必填和可选逻辑
            var detailEntities = new List<client_margin_detail>();
            var hasUnderFiveYear = false;

            if (details != null)
            {
                foreach (var dto in details)
                {
                    // <5y期限必填
                    if (dto.bond_term == ConsMarginTerm.UnderFiveYear)
                    {
                        if (!dto.init_rate.HasValue || !dto.maintain_rate.HasValue)
                        {
                            return JsonError("<5y期限的初始保证金率和维持保证金率必须填写");
                        }
                        hasUnderFiveYear = true;

                        detailEntities.Add(new client_margin_detail
                        {
                            bond_term = ConsMarginTerm.UnderFiveYear,
                            init_rate = dto.init_rate.Value / 100,
                            maintain_rate = dto.maintain_rate.Value / 100,
                            swap_days = dto.swap_days ?? 0
                        });
                    }
                    else
                    {
                        // 其他期限非必填，但如果填写了任何字段就需要验证
                        if (dto.init_rate.HasValue || dto.maintain_rate.HasValue || dto.swap_days.HasValue)
                        {
                            if (dto.swap_days.HasValue && (!dto.init_rate.HasValue || !dto.maintain_rate.HasValue))
                            {
                                return JsonError($"期限\"{dto.bond_term}\"：当互换默认天数有值时，初始保证金率和维持保证金率必须填写");
                            }

                            detailEntities.Add(new client_margin_detail
                            {
                                bond_term = dto.bond_term,
                                init_rate = (dto.init_rate ?? 0) / 100,
                                maintain_rate = (dto.maintain_rate ?? 0) / 100,
                                swap_days = dto.swap_days ?? 0
                            });
                        }
                    }
                }
            }

            if (!hasUnderFiveYear)
            {
                return JsonError("<5y期限的保证金配置信息必须填写");
            }

            new ClientMarginConfigService(CurUser).SaveMarginConfigWithDetails(marginConfig, detailEntities);
            return JsonSuccess("已修改");
        }

        [HttpPost]
        public JsonResult ClientMarginConfigQuery(ClientMarginConfigReq req)
        {
            var sList = new ClientMarginConfigService(CurUser).SearchList(req);
            GetExtendInfo(sList);
            return JsonSuccess("",sList);
        }

        [HttpPost]
        public JsonResult GetMarginConfigDetails(int configId)
        {
            var details = yldb.clientMarginDetail.Where(d => d.config_id == configId).ToList();
            // 转换为百分比显示
            foreach (var detail in details)
            {
                detail.init_rate *= 100;
                detail.maintain_rate *= 100;
            }
            return Json(details);
        }
        /// <summary>
        /// 获取适用金率
        /// </summary>
        /// <param name="req"></param>
        /// <returns></returns>
        [AllowAnonymous]
        [HttpPost]
        public JsonResult GetApplicableMarginRate([FromBody]GetClientMarginDetailReq req)
        {
            var detail = YLErp.Modules.UnderlyingModule.UnderlyingHelper.GetApplicableMarginRate(req.clientId, req.underlyingCode, req.valueDate);
            return JsonSuccess("", detail);
        }

        private void GetExtendInfo(IEnumerable<ClientMarginConfigDto> marginConfigs)
        {
            foreach (var item in marginConfigs)
            {
                if (item.client_id != 0)
                {
                    var client = DataCacheProvider.GetClientDataSource().GetData(item.client_id);
                    if (client != null)
                    {
                        item.client_name = client.Name;
                    }
                }
                
                // 百分比转换已在服务层处理，此处不需要重复转换
            }
        }


    }
}