using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using MongoDB.Driver;
using MongoDB.Bson;
using AIAHTML5.API.Properties;
using AIAHTML5.API.Constants;
using log4net;

namespace AIAHTML5.API.Models
{
    public class Users
    {


        internal static dynamic AuthenticateUser(Newtonsoft.Json.Linq.JObject credentials)
        {
            ILog logger = log4net.LogManager.GetLogger((System.Reflection.MethodBase.GetCurrentMethod().DeclaringType));
            logger.Debug("inside AuthenticateUser for loginId =" + credentials["username"].ToString() + " and password= " + credentials["password"].ToString());
            try
            {
                var client = new MongoClient();
                var db = client.GetDatabase(Settings.Default.database);

                var collection = db.GetCollection<dynamic>("Users");

                FilterDefinition<dynamic>[] filterCondition = { Builders<dynamic>.Filter.Eq("loginId", credentials["username"].ToString()),
                                                            Builders<dynamic>.Filter.Eq("password", credentials["password"].ToString())};

                dynamic userDetails = collection.Find(Builders<dynamic>.Filter.And(filterCondition)).SingleOrDefault();


                if (userDetails != null)
                {
                    logger.Debug("userDetails.loginId= " + userDetails.loginId);
                    return userDetails;
                }
                else
                {
                    return AIAConstants.USER_NOT_FOUND;
                }
            }
            catch (Exception e)
            {

                logger.Fatal("Exception in AuthenticateUser for loginId =" + credentials["username"].ToString() + " and password= " + credentials["password"].ToString() + "Exception= " + e.Message);

                string errorMessage = AIAConstants.ERROR_IN_FECTHING_DETAILS;
                return errorMessage;
            }

        }

        internal static dynamic GetUserByEmail(Newtonsoft.Json.Linq.JObject userInfo)
        {
            ILog logger = log4net.LogManager.GetLogger((System.Reflection.MethodBase.GetCurrentMethod().DeclaringType));
            logger.Debug(" inside GetUserByEmail for emailId = " + userInfo["emailId"] );
            var client = new MongoClient();

            try
            {

                var db = client.GetDatabase(Settings.Default.database);

                var collection = db.GetCollection<dynamic>("Users");

                FilterDefinition<dynamic> filterCondition = Builders<dynamic>.Filter.Eq("emailId", userInfo["emailId"].ToString().ToLower());

                dynamic userDetails = collection.Find(Builders<dynamic>.Filter.And(filterCondition)).SingleOrDefault();
                if (userDetails != null)
                {
                    logger.Debug("userDetails= " + userDetails.loginId);

                    return userDetails;
                }
                else
                {
                    logger.Debug("user not found");
                    return AIAConstants.USER_NOT_FOUND;
                }
            }
            catch (Exception e)
            {
                logger.Fatal("Exception= " + e.Message+", stacktrace = "+e.StackTrace);
                return AIAConstants.ERROR_IN_FECTHING_DETAILS;
            }
        }

        internal static dynamic UpdatePassword(Newtonsoft.Json.Linq.JObject userInfo)
        {
            ILog logger = log4net.LogManager.GetLogger((System.Reflection.MethodBase.GetCurrentMethod().DeclaringType));
            var client = new MongoClient();
            try
            {
                var db = client.GetDatabase(Settings.Default.database);
                var collection = db.GetCollection<BsonDocument>("Users");
                var filter = Builders<BsonDocument>.Filter.Eq("emailId", userInfo["emailId"].ToString());
                var update = Builders<BsonDocument>.Update.Set("password", userInfo["newPassword"].ToString()).CurrentDate("modifiedDate");
                
                var result = collection.UpdateOne(filter, update);

                if (result != null)
                    return result;
                else
                    return AIAConstants.USER_NOT_FOUND;
            }
            catch (Exception e)
            {
                logger.Fatal("Exception= " + e.Message);
                return AIAConstants.ERROR_IN_FECTHING_DETAILS;
            }
        }
    }
}