using System.Collections.Generic;
using System.Linq;

namespace BLL
{
    /// <summary>
    /// 学习园地主表
    /// </summary>
    public class StudyZoneService
    {

        /// <summary>
        /// 根据主键获取学习园地
        /// </summary>
        /// <param name="companyTrainingId"></param>
        /// <returns></returns>
        public static Model.Training_StudyZone GetStudyZoneById(string companyTrainingId)
        {
            var db = Funs.DB;
            return db.Training_StudyZone.FirstOrDefault(e => e.StudyZoneId == companyTrainingId);
        }

        /// <summary>
        /// 添加学习园地
        /// </summary>
        /// <param name="companyTraining"></param>
        public static void AddStudyZone(Model.Training_StudyZone companyTraining)
        {
            var db = Funs.DB;
            Model.Training_StudyZone newStudyZone = new Model.Training_StudyZone();
            newStudyZone.StudyZoneId = companyTraining.StudyZoneId;
            newStudyZone.StudyZoneCode = companyTraining.StudyZoneCode;
            newStudyZone.StudyZoneName = companyTraining.StudyZoneName;
            newStudyZone.SupStudyZoneId = companyTraining.SupStudyZoneId;
            newStudyZone.IsEndLever = companyTraining.IsEndLever;
            db.Training_StudyZone.InsertOnSubmit(newStudyZone);
            db.SubmitChanges();
        }

        /// <summary>
        /// 修改学习园地
        /// </summary>
        /// <param name="companyTraining"></param>
        public static void UpdateStudyZone(Model.Training_StudyZone companyTraining)
        {
            var db = Funs.DB;
            Model.Training_StudyZone newStudyZone = db.Training_StudyZone.FirstOrDefault(e => e.StudyZoneId == companyTraining.StudyZoneId);
            if (newStudyZone != null)
            {
                newStudyZone.StudyZoneCode = companyTraining.StudyZoneCode;
                newStudyZone.StudyZoneName = companyTraining.StudyZoneName;
                newStudyZone.SupStudyZoneId = companyTraining.SupStudyZoneId;
                newStudyZone.IsEndLever = companyTraining.IsEndLever;
                db.SubmitChanges();
            }
        }

        /// <summary>
        /// 根据主键删除学习园地
        /// </summary>
        /// <param name="companyTrainingId"></param>
        public static void DeleteStudyZone(string companyTrainingId)
        {
            var db = Funs.DB;
            Model.Training_StudyZone companyTraining = db.Training_StudyZone.FirstOrDefault(e => e.StudyZoneId == companyTrainingId);
            if (companyTraining != null)
            {
                var getItems = from x in Funs.DB.Training_StudyZoneItem
                               where x.StudyZoneId == companyTraining.StudyZoneId
                               select x;
                if (getItems.Count() > 0)
                {
                    foreach (var item in getItems)
                    {
                        BLL.CommonService.DeleteAttachFileById(item.TestTrainingIds);
                    }
                    db.Training_StudyZoneItem.DeleteAllOnSubmit(getItems);
                }
                db.Training_StudyZone.DeleteOnSubmit(companyTraining);
                db.SubmitChanges();
            }
        }

        /// <summary>
        /// 是否可删除资源节点
        /// </summary>
        /// <param name="postName"></param>
        /// <returns>true-可以，false-不可以</returns>
        public static bool IsDeleteStudyZone(string companyTrainingId)
        {
            bool isDelete = true;
            var Training = BLL.StudyZoneService.GetStudyZoneById(companyTrainingId);
            if (Training != null)
            {
                if (Training.IsEndLever == true)
                {
                    var detailCout = Funs.DB.Training_StudyZoneItem.FirstOrDefault(x => x.StudyZoneId == companyTrainingId);
                    if (detailCout != null)
                    {
                        isDelete = false;
                    }
                }
                else
                {
                    var supItemSetCount = BLL.StudyZoneService.GetStudyZoneBySupItem(companyTrainingId);
                    if (supItemSetCount.Count() > 0)
                    {
                        isDelete = false;
                    }
                }
            }
            return isDelete;
        }

        /// <summary>
        /// 根据上级Id查询所有学习园地
        /// </summary>
        /// <param name="supItem">上级Id</param>
        /// <returns>学习园地的集合</returns>
        public static List<Model.Training_StudyZone> GetStudyZoneBySupItem(string supItem)
        {
            return (from x in Funs.DB.Training_StudyZone where x.SupStudyZoneId == supItem select x).ToList();
        }

        /// <summary>
        /// 根据上级Id查询所有学习园地
        /// </summary>
        /// <param name="supItem">上级Id</param>
        /// <returns>学习园地的集合</returns>
        public static List<Model.Training_StudyZone> GetStudyZoneIsEnd()
        {
            return (from x in Funs.DB.Training_StudyZone
                    where x.IsEndLever == true
                    orderby x.StudyZoneCode
                    select x).ToList();
        }

        /// <summary>
        /// 教材类型下拉框
        /// </summary>
        /// <param name="dropName"></param>
        /// <param name="projectId"></param>
        /// <param name="isShowPlease"></param>
        public static void InitStudyZoneDropDownList(FineUIPro.DropDownList dropName, string supItem, bool isShowPlease)
        {
            dropName.DataValueField = "StudyZoneId";
            dropName.DataTextField = "StudyZoneName";
            dropName.DataSource = GetStudyZoneBySupItem(supItem);
            dropName.DataBind();
            if (isShowPlease)
            {
                Funs.FineUIPleaseSelect(dropName);
            }
        }

        /// <summary>
        /// 教材类型下拉框（末级）
        /// </summary>
        /// <param name="dropName"></param>
        /// <param name="projectId"></param>
        /// <param name="isShowPlease"></param>
        public static void InitStudyZoneIsEndDropDownList(FineUIPro.DropDownList dropName, bool isShowPlease)
        {
            dropName.DataValueField = "StudyZoneId";
            dropName.DataTextField = "StudyZoneName";
            dropName.DataSource = GetStudyZoneIsEnd();
            dropName.DataBind();
            if (isShowPlease)
            {
                Funs.FineUIPleaseSelect(dropName);
            }
        }
    }
}