using FlexJobApi.Core;
using Furion.DatabaseAccessor;
using Furion.FriendlyException;
using Mapster;
using MediatR;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FlexJobApi.UserServer.Application
{
    /// <summary>
    /// 用户简历命令处理器
    /// </summary>
    public class UserResumeCommandHandler(
            IRepository<User> rep,
            IRepository<EnterpriseUserCollect> repEnterpriseUserCollect
        ) :
        IRequestHandler<SaveUserResumePersonalCommand, Guid>,
        IRequestHandler<SaveUserResumeJobSeekingCommand, Guid>,
        IRequestHandler<SaveUserResumeCredentialCommand, Guid>,
        IRequestHandler<DeleteUserResumeCredentialCommand, int>,
        IRequestHandler<SaveUserResumeWorkExperienceCommand, Guid>,
        IRequestHandler<SaveUserResumeDetailCommand, Guid>,
        IRequestHandler<CollectUserResumeCommand, Guid>,
        IRequestHandler<ContactUserResumeCommand, Guid>
    {
        private readonly IRepository<User> rep = rep;
        private readonly IRepository<EnterpriseUserCollect> repEnterpriseUserCollect = repEnterpriseUserCollect;

        /// <summary>
        /// 保存用户简历-个人信息
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<Guid> Handle(SaveUserResumePersonalCommand request, CancellationToken cancellationToken)
        {
            return rep.GetPersonalQueryable(false)
                .UpdateData(request, cancellationToken: cancellationToken);
        }

        /// <summary>
        /// 保存用户简历-求职意向
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<Guid> Handle(SaveUserResumeJobSeekingCommand request, CancellationToken cancellationToken)
        {
            return rep.GetPersonalQueryable(false)
                .Include(it => it.UserExpectJobs)
                .UpdateData(
                    request,
                    null,
                    cancellationToken: cancellationToken);
        }

        /// <summary>
        /// 保存用户简历-资格证书
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<Guid> Handle(SaveUserResumeCredentialCommand request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            var entity = await request.SaveData<UserCredential, SaveUserResumeCredentialCommand>(
                q => rep.GetPersonalQueryable(false).SelectMany(it => it.UserCredentials),
                update: (entity) =>
                {
                    request.Adapt(entity);
                    if (request.Id == null)
                    {
                        entity.UserId = logier.Id;
                    }
                },
                cancellationToken: cancellationToken);
            return entity.Id;
        }

        /// <summary>
        /// 删除用户简历-资格证书
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<int> Handle(DeleteUserResumeCredentialCommand request, CancellationToken cancellationToken)
        {
            return request.DeleteData<UserCredential>(
                q => rep.GetPersonalQueryable(false).SelectMany(it => it.UserCredentials),
                cancellationToken);
        }

        /// <summary>
        /// 保存用户简历-工作经验
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<Guid> Handle(SaveUserResumeWorkExperienceCommand request, CancellationToken cancellationToken)
        {
            return rep.GetPersonalQueryable(false)
                .UpdateData(request, cancellationToken: cancellationToken);
        }

        /// <summary>
        /// 保存用户简历-详细信息
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<Guid> Handle(SaveUserResumeDetailCommand request, CancellationToken cancellationToken)
        {
            return rep.GetPersonalQueryable(false)
                .Include(it => it.Photos)
                .UpdateData(request, cancellationToken: cancellationToken);
        }

        /// <summary>
        /// 收藏灵工
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<Guid> Handle(CollectUserResumeCommand request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            if (logier.Type != EnumUserType.Enterprise) throw Oops.Oh(EnumErrorCodeType.s400, "需企业用户方可联系");
            var entity = await repEnterpriseUserCollect.AsQueryable()
                .FirstOrDefaultAsync(it => it.EnterpriseId == logier.EnterpriseId && it.UserId == request.Id);
            if (entity == null)
            {
                entity = new EnterpriseUserCollect
                {
                    EnterpriseId = logier.EnterpriseId!.Value,
                    UserId = request.Id,
                    IsCollected = true,
                    CollectedTime = request.IsCollected
                        ? DateTime.Now
                        : null
                };
                await repEnterpriseUserCollect.InsertAsync(entity);
            }
            else if (entity.IsCollected != request.IsCollected)
            {
                entity.IsCollected = request.IsCollected;
                entity.CollectedTime = request.IsCollected
                        ? DateTime.Now
                        : null;
                await repEnterpriseUserCollect.UpdateAsync(entity);
            }
            return entity.Id;
        }

        /// <summary>
        /// 联系灵工
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<Guid> Handle(ContactUserResumeCommand request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            if (logier.Type != EnumUserType.Enterprise) throw Oops.Oh(EnumErrorCodeType.s400, "需企业用户方可联系");
            var entity = await repEnterpriseUserCollect.AsQueryable()
                .FirstOrDefaultAsync(it => it.EnterpriseId == logier.EnterpriseId && it.UserId == request.Id);
            if (entity == null)
            {
                entity = new EnterpriseUserCollect
                {
                    EnterpriseId = logier.EnterpriseId!.Value,
                    UserId = request.Id,
                    IsContacted = true,
                    ContactedTime = DateTime.Now
                };
                await repEnterpriseUserCollect.InsertAsync(entity);
            }
            else if (entity.IsContacted == false)
            {
                entity.IsContacted = true;
                entity.ContactedTime = DateTime.Now;
                await repEnterpriseUserCollect.UpdateAsync(entity);
            }
            return entity.Id;
        }
    }
}