using DS.Module.Core;
using DS.WMS.Core.Application.Entity;
using DS.WMS.Core.Application.Interface;
using DS.WMS.Core.Fee.Dtos;
using DS.WMS.Core.Fee.Method;
using DS.WMS.Core.Flow.Dtos;
using DS.WMS.Core.Flow.Entity;
using DS.WMS.Core.Flow.Interface;
using Microsoft.Extensions.DependencyInjection;

namespace DS.WMS.Core.Application.Method
{
    /// <summary>
    /// 申请单审核服务
    /// </summary>
    public class ApplicationAuditService<TEntity> : FeeServiceBase, IApplicationAuditService<TEntity>
        where TEntity : ApplicationForm, new()
    {
        internal static readonly string[] AuditTypes = [AuditType.PaidApplication.ToString()];
        readonly IClientFlowInstanceService flowService;

        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="serviceProvider"></param>
        public ApplicationAuditService(IServiceProvider serviceProvider) : base(serviceProvider)
        {
            flowService = serviceProvider.GetRequiredService<IClientFlowInstanceService>();
        }

        /// <summary>
        /// 一键审核当前登录用户的所有待审核项
        /// </summary>
        /// <param name="yesOrNo">审批结果：1=通过，2=驳回</param>
        /// <param name="remark">备注</param>
        /// <returns></returns>
        public async Task<DataResult> AuditAsync(int yesOrNo, string? remark)
        {
            var recordIds = await GetCurrentFlowsQuery(AuditTypes).Select(x => x.BusinessId).ToArrayAsync();
            //没有待审批的列表直接返回不再执行后续查询
            if (recordIds.Length == 0)
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.NoAuditItems));

            return await AuditAsync(new AuditRequest { Ids = recordIds, Remark = remark, Result = yesOrNo });
        }

        /// <summary>
        /// 申请单审核
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        public async Task<DataResult> AuditAsync(AuditRequest request)
        {
            var apps = await TenantDb.Queryable<TEntity>().Where(x => request.Ids.Contains(x.Id)).Select(x => new TEntity
            {
                Id = x.Id,
                ApplicationNO = x.ApplicationNO,
                Status = x.Status,
                FlowId = x.FlowId
            }).ToListAsync();

            if (apps.Count == 0)
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.EmptyData));

            if (apps.Exists(x => !x.FlowId.HasValue))
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.NotInFlows));

            var result = PreAudit(apps);
            if (!result.Succeeded)
                return result;

            var flowIds = apps.Select(x => x.FlowId.GetValueOrDefault());
            var flows = await Db.Queryable<FlowInstance>().Where(x => flowIds.Contains(x.Id)).ToListAsync();
            if (flows.Count == 0)
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.FlowNotFound));

            if (flows.Exists(x => !x.MakerList.Contains(User.UserId)))
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.AuditUnauthorization));

            List<string> list = [];
            foreach (var app in apps)
            {
                var flow = flows.Find(x => x.Id == app.FlowId.Value);
                if (flow == null)
                    continue;

                result = flowService.AuditFlowInstance(new FlowAuditInfo
                {
                    Instance = flow,
                    Status = request.Result,
                    AuditNote = request.Remark
                });

                if (!result.Succeeded)
                    list.Add(app.ApplicationNO);
            }

            if (list.Count > 0)
                return DataResult.Failed($"{MultiLanguageConst.Operation_Failed}：{string.Join("、", list)}");

            return DataResult.Success;
        }

        /// <summary>
        /// 在执行审批前调用，用于检查申请单状态
        /// </summary>
        /// <param name="applications">申请单</param>
        /// <returns></returns>
        protected virtual DataResult PreAudit(List<TEntity> applications)
        {
            return DataResult.Success;
        }

        /// <summary>
        /// 将申请单重置为未打印状态
        /// </summary>
        /// <param name="ids">申请单ID</param>
        /// <returns></returns>
        public async Task<DataResult> SetUnPrinted(params long[] ids)
        {
            if (typeof(TEntity).IsSubclassOf(typeof(ApplicationForm)))
                throw new NotSupportedException($"不支持的类型，泛型参数需要继承自类：{typeof(ApplicationForm).AssemblyQualifiedName}");

            int rows = await TenantDb.Updateable<TEntity>()
                 .SetColumns(nameof(ApplicationForm.IsPrinted), false)
                 .SetColumns(nameof(ApplicationForm.PrintTimes), 0)
                 .SetColumns(nameof(ApplicationForm.PrinterId), null)
                 .SetColumns(nameof(ApplicationForm.PrinterName), null)
                 .SetColumns(nameof(ApplicationForm.PrintTime), null)
                 .Where(x => ids.Contains(x.Id)).ExecuteCommandAsync();

            return rows > 0 ? DataResult.Success : DataResult.FailedWithDesc(nameof(MultiLanguageConst.Operation_Failed));
        }

        /// <summary>
        /// 根据审批结果更新申请单状态
        /// </summary>
        /// <param name="callback">回调信息</param>
        /// <returns></returns>
        public async Task<DataResult> UpdateStatusAsync(FlowCallback callback)
        {
            var app = await TenantDb.Queryable<TEntity>().Where(x => x.Id == callback.BusinessId)
                .Select(x => new TEntity
                {
                    Id = x.Id,
                    Status = x.Status
                }).FirstAsync();
            if (app == null)
            {
                await new ApplicationException($"未能获取ID={callback.BusinessId}的申请单，回调更新失败").LogAsync(Db);
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.EmptyData));
            }

            DateTime dtNow = DateTime.Now;
            app.AuditerId = long.Parse(User.UserId);
            app.AuditerName = User.UserName;
            app.AuditTime = dtNow;
            app.Reason = callback.RejectReason;

            await TenantDb.Ado.BeginTranAsync();
            try
            {
                await OnUpdateStatusAsync(callback, app);

                //驳回申请则逻辑删除关联工作流
                if (callback.FlowStatus == FlowStatusEnum.Reject)
                {
                    await Db.Updateable(new FlowInstance
                    {
                        Id = callback.InstanceId,
                        Deleted = true,
                        DeleteBy = 0,
                        DeleteTime = DateTime.Now
                    }).UpdateColumns(x => new { x.Deleted, x.DeleteBy, x.DeleteTime }).ExecuteCommandAsync();
                }

                await TenantDb.Ado.CommitTranAsync();
                return DataResult.Success;
            }
            catch (Exception ex)
            {
                await TenantDb.Ado.RollbackTranAsync();
                await ex.LogAsync(Db);
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.Operation_Failed));
            }
        }

        /// <summary>
        /// 在审批完成时调用，用于更新申请单的审批状态
        /// </summary>
        /// <param name="callback">回调参数</param>
        /// <param name="application">申请单</param>
        /// <returns></returns>
        protected virtual async Task OnUpdateStatusAsync(FlowCallback callback, TEntity application)
        {
            await TenantDb.Updateable(application).UpdateColumns(x => new
            {
                x.Status,
                x.AuditerId,
                x.AuditerName,
                x.AuditTime,
                x.Reason,
                x.FlowId
            }).ExecuteCommandAsync();
        }
    }
}