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

namespace BLL
{
    /// <summary>
    /// 安全巡检API服务
    /// </summary>
    public static class APISafetyPatrolService
    {
        /// <summary>
        /// 根据项目获取安全巡检列表（按工程名称搜索）
        /// </summary>
        /// <param name="projectId">项目主键</param>
        /// <param name="keyword">工程名称关键字</param>
        /// <returns></returns>
        public static List<Model.SafetyPatrolItem> getSafetyPatrolList(string projectId, string keyword)
        {
            using (Model.SGGLDB db = new Model.SGGLDB(Funs.ConnString))
            {
                IQueryable<Model.HSSE_SafetyPatrol> query = db.HSSE_SafetyPatrol.Where(x => x.ProjectId == projectId);
                if (!string.IsNullOrEmpty(keyword))
                {
                    query = query.Where(x => x.HazardProjectName.Contains(keyword));
                }
                var list = from x in query
                           orderby x.PatrolDate descending
                           select new Model.SafetyPatrolItem
                           {
                               PatrolId = x.PatrolId,
                               Code = x.Code,
                               ProjectId = x.ProjectId,
                               HazardProjectId = x.HazardProjectId,
                               HazardProjectName = x.HazardProjectName,
                               PatrolDate = x.PatrolDate,
                               PatrolMan = x.PatrolMan,
                               PatrolManId = x.PatrolManId,
                               PatrolStatus = x.PatrolStatus,
                               Content = x.Content,
                               Problems = x.Problems,
                               Receiver = x.Receiver,
                               ReceiverId = x.ReceiverId,
                               HandleRequire = x.HandleRequire,
                               RectifyReview = x.RectifyReview,
                               Remarks = x.Remarks
                           };
                return list.ToList();
            }
        }

        /// <summary>
        /// 根据主键获取安全巡检详情
        /// </summary>
        /// <param name="patrolId">主键</param>
        /// <returns></returns>
        public static Model.SafetyPatrolItem getSafetyPatrolById(string patrolId)
        {
            using (Model.SGGLDB db = new Model.SGGLDB(Funs.ConnString))
            {
                var x = db.HSSE_SafetyPatrol.FirstOrDefault(e => e.PatrolId == patrolId);
                if (x == null)
                {
                    return null;
                }
                return new Model.SafetyPatrolItem
                {
                    PatrolId = x.PatrolId,
                    Code = x.Code,
                    ProjectId = x.ProjectId,
                    HazardProjectId = x.HazardProjectId,
                    HazardProjectName = x.HazardProjectName,
                    PatrolDate = x.PatrolDate,
                    PatrolMan = x.PatrolMan,
                    PatrolManId = x.PatrolManId,
                    PatrolStatus = x.PatrolStatus,
                    Content = x.Content,
                    Problems = x.Problems,
                    Receiver = x.Receiver,
                    ReceiverId = x.ReceiverId,
                    HandleRequire = x.HandleRequire,
                    RectifyReview = x.RectifyReview,
                    Remarks = x.Remarks
                };
            }
        }

        /// <summary>
        /// 新增安全巡检（返回主键）
        /// </summary>
        /// <param name="item">巡检项</param>
        /// <returns></returns>
        public static string addSafetyPatrol(Model.SafetyPatrolItem item)
        {
            if (string.IsNullOrEmpty(item.PatrolId))
            {
                item.PatrolId = Guid.NewGuid().ToString();
            }
            using (Model.SGGLDB db = new Model.SGGLDB(Funs.ConnString))
            {
                ////编码为空时自动生成（全局唯一）
                if (string.IsNullOrEmpty(item.Code))
                {
                    item.Code = GetNewCode(db);
                }
                Model.HSSE_SafetyPatrol newItem = new Model.HSSE_SafetyPatrol
                {
                    PatrolId = item.PatrolId,
                    Code = item.Code,
                    ProjectId = item.ProjectId,
                    HazardProjectId = item.HazardProjectId,
                    HazardProjectName = item.HazardProjectName,
                    PatrolDate = item.PatrolDate,
                    PatrolMan = item.PatrolMan,
                    PatrolManId = item.PatrolManId,
                    PatrolStatus = item.PatrolStatus,
                    Content = item.Content,
                    Problems = item.Problems,
                    Receiver = item.Receiver,
                    ReceiverId = item.ReceiverId,
                    HandleRequire = item.HandleRequire,
                    RectifyReview = item.RectifyReview,
                    Remarks = item.Remarks
                };
                db.HSSE_SafetyPatrol.InsertOnSubmit(newItem);
                db.SubmitChanges();
            }
            ////保存巡检图片附件
            if (!string.IsNullOrEmpty(item.AttachUrl))
            {
                APIUpLoadFileService.SaveAttachUrl(Const.SafetyPatrolMenuId, item.PatrolId, item.AttachUrl, "0");
            }
            ////保存整改图片附件
            if (!string.IsNullOrEmpty(item.RectifyAttachUrl))
            {
                APIUpLoadFileService.SaveAttachUrl(Const.SafetyPatrolRectifyMenuId, item.PatrolId, item.RectifyAttachUrl, "0");
            }
            return item.PatrolId;
        }

        /// <summary>
        /// 更新安全巡检
        /// </summary>
        /// <param name="item">巡检项</param>
        /// <returns>是否更新成功</returns>
        public static bool updateSafetyPatrol(Model.SafetyPatrolItem item)
        {
            using (Model.SGGLDB db = new Model.SGGLDB(Funs.ConnString))
            {
                Model.HSSE_SafetyPatrol newItem = db.HSSE_SafetyPatrol.FirstOrDefault(x => x.PatrolId == item.PatrolId);
                if (newItem == null)
                {
                    return false;
                }
                newItem.ProjectId = item.ProjectId;
                newItem.HazardProjectId = item.HazardProjectId;
                newItem.HazardProjectName = item.HazardProjectName;
                newItem.PatrolDate = item.PatrolDate;
                newItem.PatrolMan = item.PatrolMan;
                newItem.PatrolManId = item.PatrolManId;
                newItem.PatrolStatus = item.PatrolStatus;
                newItem.Content = item.Content;
                newItem.Problems = item.Problems;
                newItem.Receiver = item.Receiver;
                newItem.ReceiverId = item.ReceiverId;
                newItem.HandleRequire = item.HandleRequire;
                newItem.RectifyReview = item.RectifyReview;
                newItem.Remarks = item.Remarks;
                db.SubmitChanges();
            }
            ////保存巡检图片附件
            if (!string.IsNullOrEmpty(item.AttachUrl))
            {
                APIUpLoadFileService.SaveAttachUrl(Const.SafetyPatrolMenuId, item.PatrolId, item.AttachUrl, "0");
            }
            ////保存整改图片附件
            if (!string.IsNullOrEmpty(item.RectifyAttachUrl))
            {
                APIUpLoadFileService.SaveAttachUrl(Const.SafetyPatrolRectifyMenuId, item.PatrolId, item.RectifyAttachUrl, "0");
            }
            return true;
        }

        /// <summary>
        /// 生成新的巡检编码（全局唯一，前缀 XJ-，三位递增序号）
        /// </summary>
        /// <param name="db">数据库上下文</param>
        /// <returns></returns>
        private static string GetNewCode(Model.SGGLDB db)
        {
            int max = 0;
            foreach (Model.HSSE_SafetyPatrol item in db.HSSE_SafetyPatrol.ToList())
            {
                string code = item.Code;
                if (!string.IsNullOrEmpty(code) && code.StartsWith("XJ-"))
                {
                    int num = 0;
                    if (int.TryParse(code.Substring(3), out num) && num > max)
                    {
                        max = num;
                    }
                }
            }
            return string.Format("XJ-{0:D3}", max + 1);
        }
    }
}