using Contracts.BindingModels;
using Contracts.SearchModel;
using Contracts.Storage;
using Contracts.ViewModels;
using MongoDB.Bson;
using MongoDB.Driver;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MongoDB
{
    public class RouteStorage : IRouteStorage
    {
        public MongoClient contex;
        public RouteStorage()
        {
            contex = MongoDateBase.getInstance().client;
        }
        public RouteVM? Delete(RouteBM model)
        {
            IMongoDatabase db = contex.GetDatabase("logistic");
            var collection = db.GetCollection<BsonDocument>("Route");
            var res = collection.FindOneAndDelete(new BsonDocument("name", model.Title));
            if (res == null)
                return null;
            return new RouteVM
            {
                Title = res["name"].ToString(),
                
            };
        }

        public RouteVM? GetElement(RouteSM model)
        {
            IMongoDatabase db = contex.GetDatabase("logistic");
            var collection = db.GetCollection<BsonDocument>("Route");
            BsonDocument route = collection.Find(new BsonDocument("name", model.Title)).FirstOrDefault();
            if (route == null)
                return null;
            return new RouteVM
            {
                Title = route["name"].ToString(),
            };
        }

        public List<RouteVM> GetFilteredList(RouteSM model)
        {
            IMongoDatabase db = contex.GetDatabase("logistic");
            var collection = db.GetCollection<BsonDocument>("Route");
            List<BsonDocument> statuses = collection.Find(new BsonDocument { { "$regex", $"^.{model.Title}.$" } }).ToList();
            List<RouteVM> res = new List<RouteVM>();
            foreach (var status in statuses)
            {
                res.Add(new RouteVM
                {
                    Title = status["name"].ToString(),
                });
            }
            return res;
        }

        public List<RouteVM> GetFullList()
        {
            IMongoDatabase db = contex.GetDatabase("logistic");
            var collection = db.GetCollection<BsonDocument>("Route");
            List<BsonDocument> statuses = collection.Find(new BsonDocument()).ToList();
            List<RouteVM> res = new List<RouteVM>();
            foreach (var status in statuses)
            {
                res.Add(new RouteVM
                {
                    Title = status["name"].ToString(),
                    Length = status["length"].ToInt32()
                });
            }
            return res;
        }

        public RouteVM? Insert(RouteBM model)
        {
            IMongoDatabase db = contex.GetDatabase("logistic");
            var collection = db.GetCollection<BsonDocument>("Route");
            BsonDocument status = new BsonDocument { { "name", model.Title }, { "length", model.Length }, { "place_From" , model.PlaceStartName}, { "place_To", model.PlaceEndName } };
            collection.InsertOne(status);
            return new RouteVM { Title = model.Title, Length = model.Length };
        }

        public RouteVM? Update(RouteBM model)
        {
            IMongoDatabase db = contex.GetDatabase("logistic");
            var collection = db.GetCollection<BsonDocument>("Route");
            var result = collection.UpdateOneAsync(new BsonDocument("name", model.oldTitle), new BsonDocument("$set", new BsonDocument("name", model.Title)));
            if (result == null)
                return null;
            return new RouteVM
            {
                Title = model.Title,
            };
        }
    }
}