using AdminService.Notices.Param;
using AutoMapper;
using Common;
using Common.Utils;
using Microsoft.Extensions.Logging;
using MongoDB.Bson;
using MongoRepository;
using UserDomain.Entity;
using System.Text.RegularExpressions;

namespace AdminService.Notices
{
    public class NoticeService : INoticeService
    {
        private readonly IMongoBaseRepository<Notice> _noticeMongo;
        private readonly IMapper _mapper;


        public NoticeService(IMongoBaseRepository<Notice> noticeMongo, IMapper mapper)
        {
            _noticeMongo = noticeMongo;
            _mapper = mapper;
        }


        private void MoveTempFiles(Notice notice)
        {
            var wwwroot = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot");
            var tempDir = Path.Combine(wwwroot, "uploads", "temp");
            var noticeDir = Path.Combine(wwwroot, "uploads", "notice");
            if (!Directory.Exists(noticeDir)) Directory.CreateDirectory(noticeDir);

            var paths = new List<string>();

            if (!string.IsNullOrEmpty(notice.Content))
            {
                foreach (Match m in Regex.Matches(notice.Content, @"/uploads/temp/([^""'\s]+)"))
                {
                    paths.Add(m.Value);
                }
            }

            if (!string.IsNullOrEmpty(notice.TopImage) && notice.TopImage.Contains("/uploads/temp/"))
                paths.Add(notice.TopImage);

            if (notice.ContentImages != null)
            {
                foreach (var img in notice.ContentImages)
                {
                    if (!string.IsNullOrEmpty(img) && img.Contains("/uploads/temp/"))
                        paths.Add(img);
                }
            }

            foreach (var path in paths)
            {
                var cleanPath = path.Split('?', '#')[0];
                var fileName = Path.GetFileName(cleanPath);
                if (string.IsNullOrWhiteSpace(fileName))
                    continue;
                var src = Path.Combine(tempDir, fileName);
                var dest = Path.Combine(noticeDir, fileName);
                if (File.Exists(src))
                {
                    File.Move(src, dest, overwrite: true);
                }
                else
                {
                    
                }
            }

            if (!string.IsNullOrEmpty(notice.Content))
                notice.Content = notice.Content.Replace("/uploads/temp/", "/uploads/notice/");
            if (!string.IsNullOrEmpty(notice.TopImage))
                notice.TopImage = notice.TopImage.Replace("/uploads/temp/", "/uploads/notice/");
            if (notice.ContentImages != null)
            {
                for (int i = 0; i < notice.ContentImages.Count; i++)
                {
                    if (!string.IsNullOrEmpty(notice.ContentImages[i]))
                        notice.ContentImages[i] = notice.ContentImages[i].Replace("/uploads/temp/", "/uploads/notice/");
                }
            }
        }

        public async Task<(bool isok, string msg)> Add(AddNoticeParam param)
        {
            var model = _mapper.Map<Notice>(param);
            model.Id = ObjectId.GenerateNewId().ToString();

            model.CreateTime = DateTime.Now.ToTimeStamp();

            MoveTempFiles(model);

            return await _noticeMongo.InsertOneAsync(model);
        }
        public async Task<(bool isok, string msg)> Update(UpdateNoticeParam param)
        {
            var model = await Get(param.Id);
            if (model == null)
                return (false, "该条公告不存在");
            model.Title = param.Title;
            model.Content = param.Content;
            model.Recommend = param.Recommend;
            model.TopImage = param.TopImage;
            model.ContentImages = param.ContentImages;

            MoveTempFiles(model);

            return await _noticeMongo.ReplaceOneAsync(model);
        }

        public async Task<(bool isok, string msg)> Delete(string id)
        {
            var model = await Get(id);
            if (model == null)
                return (false, "该条公告不存在");
            model.IsDelete = true;
            return await _noticeMongo.ReplaceOneAsync(model);
        }

        public async Task<Notice> Get(string id)
        {
            var model = await _noticeMongo.FindByIdAsync(id);
            if (model == null)
                return null;
            if (model.IsDelete)
                return null;
            return model;

        }


        public async Task<(List<Notice> list, long count)> GetList(GetNoticeListParam param)
        {
            var where = LinqExtensions.True<Notice>().And(e => e.IsDelete == false);
            if (!string.IsNullOrWhiteSpace(param.KeyWord))
                where = where.And(e => e.Title.Contains(param.KeyWord));


            var result = await _noticeMongo.QueryPageAsync(where, c => c.CreateTime, true, param.PageSize ?? 0, param.PageIndex ?? 0);

            return (result.list, result.count);
        }
     

    }
}