using Model;
using Model.Dto.Inspection;
using Model.Entity.Inspection;
using Model.Mapper;
using ORM;
using Service.Interface;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace Service.Implement
{
    /// <summary>
    /// 告警规则 服务实现（规则实例：查看所有设备告警的规则列表）
    /// </summary>
    public class AlertRuleService : IAlertRuleService
    {
        /// <summary>
        /// 获取全局告警规则列表（OwnerType=0，不含产品/设备归属规则）
        /// </summary>
        public async Task<Result<List<AlertRuleDto>>> GetListAsync()
        {
            try
            {
                var list = await SqlSugarContext.DbContext.Queryable<AlertRuleEntity>()
                    .Where(x => x.IsDel == 0 && x.OwnerType == 0)
                    .OrderBy(x => x.CreateTime, SqlSugar.OrderByType.Desc)
                    .ToListAsync();

                // Entity → DTO（Id 转 string）
                return Result<List<AlertRuleDto>>.Success(list.ToDtoList());
            }
            catch (Exception ex)
            {
                return Result<List<AlertRuleDto>>.Error("查询告警规则失败", ex);
            }
        }

        /// <summary>
        /// 获取某归属对象下的规则列表（OwnerType=产品/设备，可选按点过滤）
        /// </summary>
        public async Task<Result<List<AlertRuleDto>>> GetOwnerRulesAsync(int ownerType, long ownerId, string? pointCode)
        {
            try
            {
                var list = await SqlSugarContext.DbContext.Queryable<AlertRuleEntity>()
                    .Where(x => x.IsDel == 0 && x.OwnerType == (byte)ownerType && x.OwnerId == ownerId)
                    .WhereIF(!string.IsNullOrWhiteSpace(pointCode), x => x.PointCode == pointCode)
                    .OrderBy(x => x.CreateTime, SqlSugar.OrderByType.Desc)
                    .ToListAsync();

                return Result<List<AlertRuleDto>>.Success(list.ToDtoList());
            }
            catch (Exception ex)
            {
                return Result<List<AlertRuleDto>>.Error("查询归属告警规则失败", ex);
            }
        }

        /// <summary>
        /// 新增告警规则（DTO → Entity，string Id 转 long）
        /// </summary>
        public async Task<Result> AddAsync(AlertRuleDto dto)
        {
            if (dto == null || string.IsNullOrWhiteSpace(dto.RuleName))
                return Result.Error("规则名称不能为空");

            try
            {
                var entity = dto.ToEntity();
                entity.CreateTime = DateTime.Now;
                await SqlSugarContext.DbContext.Insertable(entity).ExecuteCommandAsync();
                return Result.Success();
            }
            catch (Exception ex)
            {
                return Result.Error("新增告警规则失败", ex);
            }
        }

        /// <summary>
        /// 修改告警规则（触发次数等系统字段不允许被前端覆盖）
        /// </summary>
        public async Task<Result> UpdateAsync(AlertRuleDto dto)
        {
            var entity = dto?.ToEntity();
            if (entity == null || entity.Id <= 0)
                return Result.Error("规则Id无效");

            try
            {
                await SqlSugarContext.DbContext.Updateable(entity)
                    .IgnoreColumns(x => new { x.CreateTime, x.IsDel, x.TriggerCount, x.LastAlarmTime })
                    .ExecuteCommandAsync();
                return Result.Success();
            }
            catch (Exception ex)
            {
                return Result.Error("修改告警规则失败", ex);
            }
        }

        /// <summary>
        /// 删除告警规则（软删除：IsDel 置 1）
        /// </summary>
        public async Task<Result> DeleteAsync(long id)
        {
            try
            {
                await SqlSugarContext.DbContext.Updateable<AlertRuleEntity>()
                    .SetColumns(x => x.IsDel == 1)
                    .Where(x => x.Id == id)
                    .ExecuteCommandAsync();
                return Result.Success();
            }
            catch (Exception ex)
            {
                return Result.Error("删除告警规则失败", ex);
            }
        }

        /// <summary>
        /// 启用/停用告警规则
        /// </summary>
        public async Task<Result> SetEnabledAsync(long id, bool enabled)
        {
            try
            {
                await SqlSugarContext.DbContext.Updateable<AlertRuleEntity>()
                    .SetColumns(x => x.Enabled == enabled)
                    .Where(x => x.Id == id)
                    .ExecuteCommandAsync();
                return Result.Success();
            }
            catch (Exception ex)
            {
                return Result.Error("更新启用状态失败", ex);
            }
        }
    }
}