using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using log4net;
using AIAHTML5.API.Constants;
using AIAHTML5.API.Models;
using System.Collections;

using System.Data.SqlClient;
using System.IO;
using System.Web.Hosting;
using System.Configuration;

namespace AIAHTML5.API.Controllers
{
    public class AuthenticateController : ApiController
    {
        // GET api/authenticate
        public IEnumerable<string> Get()
        {
            return new string[] { "value1", "value2" };
        }

        // GET api/authenticate/5
        public string Get(int id)
        {
            return "value";
        }

        // POST api/authenticate
        public HttpResponseMessage Post([FromBody]JObject credentials)
        {
            ILog logger = log4net.LogManager.GetLogger((System.Reflection.MethodBase.GetCurrentMethod().DeclaringType));
            logger.Debug("inside POST");

            dynamic authenticationRepsonse;
            DateTime blockTime;
            bool isUserBlocked;

            try
            {

                //01.get the user detail to autheticate the user
                User userInfo = AIAHTML5.API.Models.Users.getUserDetails(credentials);

                if (userInfo != null)
                {
                    // 02 Check user is authenticated or not by login credential match
                    bool isUserAuthenticated = AIAHTML5.API.Models.Users.checkUserAuthenticity(credentials, userInfo);

                    if (isUserAuthenticated)
                    {
                        if (userInfo.IsActive)
                        {
                            //03. check if  user is blocked
                            isUserBlocked = AIAHTML5.API.Models.Users.checkUserBlockStatus(userInfo.Id, out blockTime);

                            if (!isUserBlocked)
                            {
                                //04.delete past wrong login attempts of user
                                int wrongAttemptDeteledCount = AIAHTML5.API.Models.Users.deletePastWrongAttempts(userInfo.Id);
                                if (wrongAttemptDeteledCount < 0)
                                {
                                    logger.Fatal("Unable to delete past wrong login attempts for userId= " + userInfo.Id);
                                }
                                //05. 
                                GetModulesBasedOnUserType(userInfo);

                                // authenticationRepsonse = JsonConvert.SerializeObject(userInfo);
                            }

                            else
                            {

                                //compare block time of user with current time if user is blocked
                                DateTime blockDuration = blockTime.AddDays(1);
                                var difference = DateTime.Compare(DateTime.Now, blockDuration);

                                //check if credentials are valid credentials
                                //bool isCorrectLoginId, isCorrectPassword;
                                //AIAHTML5.API.Models.Users.isCredentialCorrect(credentials, userInfo, out isCorrectLoginId, out isCorrectPassword);

                                if (difference >= 0)
                                {
                                    //means 24 hours block time is finished
                                    userInfo.IsBlocked = false;

                                    int wrongAttemptDeteledCount = AIAHTML5.API.Models.Users.deletePastWrongAttempts(userInfo.Id);
                                    if (wrongAttemptDeteledCount < 0)
                                    {
                                        logger.Fatal("Unable to delete past wrong login attempts for userId= " + userInfo.Id);
                                    }

                                    //05. Now get the module list- for ADMIN (superadmin/ general admin) by default all module loads
                                    GetModulesBasedOnUserType(userInfo);

                                }
                                else
                                {
                                    userInfo.LoginFailureCauseId = ErrorHelper.E_USER_ID_BLOCKED_24_HRS;
                                }
                            }
                        }
                        else
                        {
                            //CODE REVIW: validate that is this tarnslated by UI because we need to show message to user if he is inactive
                            userInfo.LoginFailureCauseId = ErrorHelper.E_USER_NOT_ACTIVE;

                            //05.4 check the License expiration irespective of either user is active
                            //or not because on AIA, we shows the License expiration message 
                            //for inactive users too

                            CheckLicenseStatus(userInfo);

                        }
                    }

                    else
                    {
                        //this come in picture when user input wrong passowrd

                        //get wrong attempt count of user
                        int previousIncorrectLoginAttempts = AIAHTML5.API.Models.Users.checkNoOfWrongAttempts(userInfo.Id);
                        userInfo.IncorrectLoginAttemptCount = previousIncorrectLoginAttempts + 1;
                        userInfo.LoginFailureCauseId = ErrorHelper.E_PASSWORD_NOT_MATCH;

                        //01. insert wrong attempt in dtabase
                        int updateCount = AIAHTML5.API.Models.Users.saveWrongAttemptOfUser(userInfo.Id, previousIncorrectLoginAttempts);

                        if (updateCount < 0)
                        {
                            //Put the log in log file
                            logger.Fatal("Unable to Update past wrong login attempts for userId= " + userInfo.Id);
                        }
                        //else
                        //{
                        if (userInfo.IncorrectLoginAttemptCount > 4)
                        {
                            userInfo.IsBlocked = true;
                            userInfo.LoginFailureCauseId = ErrorHelper.E_USER_ID_BLOCKED_24_HRS;
                        }


                    }

                    authenticationRepsonse = JsonConvert.SerializeObject(userInfo);

                }

                else
                {
                    authenticationRepsonse = AIAConstants.USER_NOT_FOUND;
                }
                return new HttpResponseMessage { StatusCode = HttpStatusCode.OK, Content = new StringContent(authenticationRepsonse) };
            }
            catch (SqlException e)
            {

                logger.Fatal("SqlException occured for loginId =" + credentials["username"].ToString() + " and password= " + credentials["password"].ToString() + "Exception= " + e.Message + ", STACKTRACE: " + e.StackTrace);

                ArrayList supportMailList = UserUtility.GetSupportMailList();
                string mailSubject = AIAConstants.SQL_CONNECTION_ERROR_MAIL_SUBJECT;
                string mailBody = "MESSAGE: " + e.Message + ", STACKTRACE: " + e.StackTrace;
                UserUtility.SendEmail(credentials, supportMailList, "", mailSubject, mailBody);

                return new HttpResponseMessage { StatusCode = HttpStatusCode.InternalServerError, Content = new StringContent(AIAConstants.SQL_CONNECTION_ERROR) };
            }
            catch (Exception e)
            {

                logger.Fatal("Exception occured for loginId =" + credentials["username"].ToString() + " and password= " + credentials["password"].ToString() + "Exception= " + e.Message + ", STACKTRACE: " + e.StackTrace);

                ArrayList supportMailList = UserUtility.GetSupportMailList();
                string mailSubject = AIAConstants.EXCEPTION_IN_AIAHTML5_MAIL_SUBJECT;
                string mailBody = "MESSAGE: " + e.Message + ", STACKTRACE: " + e.StackTrace;
                UserUtility.SendEmail(credentials, supportMailList, "", mailSubject, mailBody);

                return new HttpResponseMessage { StatusCode = HttpStatusCode.InternalServerError, Content = new StringContent(AIAConstants.EXCEPTION_OCCURED) };

            }

        }

        [HttpPost]
        [Route("api/ExportImage")]
        public HttpResponseMessage InserExportImageDetail([FromBody]JObject jsonData)
        {
            int Status = 0;
            dynamic responseData;
            LicenseUserInsertImageDetail inserExportImageDetail = new LicenseUserInsertImageDetail();
                   
            try
            {
                inserExportImageDetail.LicenseId = jsonData["LicenseId"].Value<int>();
                inserExportImageDetail.UserId = jsonData["UserId"].Value<int>();

                inserExportImageDetail.ImageName = jsonData["ImageName"].Value<string>();
                inserExportImageDetail.OriginalFileName = jsonData["OriginalFileName"].Value<string>();
                inserExportImageDetail.Title = jsonData["Title"].Value<string>();
                inserExportImageDetail.ModuleName = jsonData["ModuleName"].Value<string>(); 

                Status = InsertExportImageDetail(inserExportImageDetail );
                if (Status==-1)
                {
                    if(inserExportImageDetail.LicenseId>0)
                    {
                        // for user
                        var getexportedImagedetail = GetLicenseExportImageDetail(inserExportImageDetail.LicenseId);
                         responseData = JsonConvert.SerializeObject(getexportedImagedetail);
                    }
                    else
                    {
                        // for admin
                        responseData = "ADMIN";

                    }
                

                  return new HttpResponseMessage { StatusCode = HttpStatusCode.OK, Content = new StringContent(responseData) };

                }
                else
                {
                     responseData = AIAConstants.EXPORTED_IMAGE_INSERT_FAILED;
                    return new HttpResponseMessage { StatusCode = HttpStatusCode.BadRequest, Content = new StringContent(responseData) };
                }
            }
            catch (Exception ex)
            {
                // Log exception code goes here  
                return Request.CreateErrorResponse(HttpStatusCode.InternalServerError, ex.Message);
            }
        }    

        private static void GetModulesBasedOnUserType(User userInfo)
        {
            //based on old .net code(AIA flex), we get modules based on licenseId if licenseid>0.
            //we verified in database that only superadmin has no licenseid so getting all modules for supeadmin
            int licenseId, editionId, LicenseEditionId;
            AIAHTML5.API.Models.Users.getLicenseIdForThisUser(userInfo.Id, out licenseId, out editionId,out LicenseEditionId);

            userInfo.LicenseId = licenseId;
            userInfo.EditionId = editionId;
            userInfo.LicenseEditionId = LicenseEditionId;
            userInfo.isSiteUser = false;

            //if (userInfo.UserType == AIAHTML5.API.Models.User.SUPER_ADMIN)
            if (userInfo.LicenseId == 0)
            {
                userInfo.Modules = AIAHTML5.API.Models.Users.getAllModulesList();

                //Insert user login detail
                AIAHTML5.API.Models.Users.insertLoginDetails(userInfo.Id);
            }
            else
            {
                CheckLicenseStatus(userInfo);

                if (!userInfo.IsSubscriptionExpired)
                {
                    GetModulesBasedOnLicense(userInfo, false);
                }

                // get exported image detail
                userInfo.UserExportImageDetail = GetLicenseExportImageDetail(userInfo.LicenseId);
           
            }
            //get use settings
            string skintone;
            string modesty;
           User us = AIAHTML5.API.Models.Users.GetUserSelectedSettings(userInfo.Id, false, out skintone, out modesty);
           if (us != null)
           {
               userInfo.userselectedModesty = modesty;
               userInfo.userSelectedSkintone = skintone;
               userInfo.userLexicon = us.userLexicon;
            }
           else
           {
               userInfo.userselectedModesty = null;
               userInfo.userSelectedSkintone = null;
               userInfo.userLexicon = null;

            }
        }

        private static void CheckLicenseStatus(User userInfo)
        {
            //05.1 For normal user need to get the license details, get the license id for authenticated user 
            //int licenseId, editionId;
            //AIAHTML5.API.Models.Users.getLicenseIdForThisUser(userInfo.Id, out licenseId, out editionId);

            //userInfo.LicenseId = licenseId;
            //userInfo.EditionId = editionId;

            //05.2 get license details
            userInfo.LicenseInfo = AIAHTML5.API.Models.Users.getLicenseDetails(userInfo.LicenseId);

            if (userInfo.LicenseInfo != null)
            {
                //05.3 get licenseSubscription details
                userInfo.LicenseSubscriptions = AIAHTML5.API.Models.Users.getLicenseSubscriptionDetails(userInfo.LicenseId);

                //05.4 check the License expiration irespective of either user is active or not because on AIA
                //we shows the License expiration message for inactive users too
                string expirationDate = null;
                bool isLicenseExpired = false;

                // validate license start date
                string startDate = null;
                bool isSubscriptionNotStart = false;

                if (userInfo.LicenseSubscriptions != null)
                {
                    isSubscriptionNotStart = AIAHTML5.API.Models.Users.checkIfLicenseNotStarted(userInfo.LicenseSubscriptions, out startDate);

                    isLicenseExpired = AIAHTML5.API.Models.Users.checkIfLicenseExpired(userInfo.LicenseSubscriptions, out expirationDate);
                }

                if (isLicenseExpired)
                {
                    userInfo.IsSubscriptionExpired = isLicenseExpired;
                    userInfo.SubscriptionExpirationDate = expirationDate;             
                }
                else if (isSubscriptionNotStart)
                {
                    userInfo.IsSubscriptionNotStart = isSubscriptionNotStart;
                    userInfo.SubscriptionStartDate = startDate;
                }
                else
                {
                    //check Modesty settings for this license 
                    userInfo.IsModestyOn = AIAHTML5.API.Models.Users.IsModestyActiveForThisLicense(userInfo.LicenseId, Convert.ToInt16(userInfo.EditionId));
                }

                // add editon number for provide CA link
                userInfo.StudentEdition = AIAHTML5.API.Models.Users.GetStudentEdition(userInfo.LicenseId);
            }
            else
            {
                ILog logger = log4net.LogManager.GetLogger((System.Reflection.MethodBase.GetCurrentMethod().DeclaringType));
                logger.Debug("userInfo.LicenseInfo  is null for userInfo.LicenseId= " + userInfo.LicenseId);
            }
        }

        private static void GetModulesBasedOnLicense(User userInfo, bool isLicenseExpired)
        {

            //05.6.1
            if (userInfo.LicenseInfo.IsActive)
            {
                if (!userInfo.LicenseInfo.IsTermAccepted)
                {
                    ArrayList termsList = AIAHTML5.API.Models.Users.getTermsAndConditions();
                    foreach (Hashtable item in termsList)
                    {
                        userInfo.TermsAndConditionsTitle = item[AIAConstants.KEY_TITLE].ToString();
                        userInfo.TermsAndConditionsText = item[AIAConstants.KEY_CONTENT].ToString();
                    }
                }
                else
                {
                    userInfo.Modules = AIAHTML5.API.Models.Users.getModuleListByLicenseId(userInfo.LicenseId);

                    //Insert user login detail
                    AIAHTML5.API.Models.Users.insertLoginDetails(userInfo.Id);
                }
            }
            else
            {
                userInfo.LoginFailureCauseId = ErrorHelper.E_LICENCE_IS_INACTIVE;

            }
        }

        private static LicenseUserExportedImageDetail GetLicenseExportImageDetail(int licenseId)
        {
            LicenseUserExportedImageDetail exportedImageDetail = null;
            exportedImageDetail = AIAHTML5.API.Models.Users.getExportedImageDetail(licenseId);

            return exportedImageDetail;
        }

        private static int InsertExportImageDetail(LicenseUserInsertImageDetail imageDetail)
        {
            int insertImageResult = 0;
            insertImageResult = AIAHTML5.API.Models.Users.InsertExportedImageDetail(imageDetail);

            return insertImageResult;
        }

        private static int SaveAnimationFile(JArray JsonvidData)
        {
            int result = 0;
            string Path = ConfigurationManager.AppSettings["ANIMATION_HOSTING_SERVER"];
            foreach (JObject item in JsonvidData)
            {
                // string folderName = item.GetValue("folderNo").ToString();
                string fileName = item.GetValue("FileName").ToString();
                // DirectoryInfo di = Directory.CreateDirectory(Path);
                string filePath = HostingEnvironment.MapPath(Path + fileName + ".mp4");
                if (!File.Exists(filePath))
                {
                    string data = item.GetValue("Data").ToString();

                    //Convert Base64 Encoded string to Byte Array.
                    byte[] imageBytes = Convert.FromBase64String(data);

                    //Save the Byte Array as Image File.
                    //  string Path = HostingEnvironment.MapPath("~/../content/data/AnimationMp4/"+ folderName);

                    File.WriteAllBytes(filePath, imageBytes);
                }

            }
            result = 1;

            return result;
        }


        [HttpPost]
        [Route("api/SaveUserSettings")]
        public HttpResponseMessage SaveUserSettings([FromBody]JObject jsonData)
        {
            int Status = 0;
            dynamic responseData;
            User settings = new User();
            UserLexicon userLexicon = new UserLexicon();

            try
            {
                settings.userselectedModesty =jsonData["modesty"].Value<string>();
                settings.userSelectedSkintone = jsonData["skintone"].Value<string>();
                settings.userSelectedFont = null;
                settings.Id= jsonData["userId"].Value<int>();
                settings.LicenseEditionId = jsonData["LicenseEditionId"].Value<int>();
                settings.isSiteUser = jsonData["isSiteUser"].Value<bool>();

                userLexicon.primaryid= jsonData["primaryid"].Value<string>();
                userLexicon.secondryids = jsonData["secondryids"].Value<string>();
                settings.userLexicon= userLexicon;
                

                Status = AIAHTML5.API.Models.Users.SaveUserSelectedSettings(settings);
                if (Status == 1)           
                {
                    responseData = "1";
                }
                else
                {
                    responseData = AIAConstants.SETTINGS_SAVE_FAILURE;
                }

                return new HttpResponseMessage { StatusCode = HttpStatusCode.OK, Content = new StringContent(responseData) };

            }
            catch (Exception ex)
            {
                // Log exception code goes here  
                return Request.CreateErrorResponse(HttpStatusCode.InternalServerError, ex.Message);
            }
        }

        [HttpPost]
        [Route("api/saveAnimationVideo")]
        public HttpResponseMessage saveAnimationVideo([FromBody]JArray JsonvidData)
        {
            int Status = 0;
          
            try
            {
                Status= SaveAnimationFile(JsonvidData);

                if (Status == 1)
                {              
                    return new HttpResponseMessage { StatusCode = HttpStatusCode.OK, Content = new StringContent("Save Sccuessful") };
                }
                else
                {
                    return new HttpResponseMessage { StatusCode = HttpStatusCode.BadRequest, Content = new StringContent("file not saved") };
                }
            }
            catch (Exception ex)
            {
                // Log exception code goes here  
                return Request.CreateErrorResponse(HttpStatusCode.InternalServerError, ex.Message);
            }
        }

        [HttpPost]
        [Route("api/ByPassLoginToOpenModule")]
        public HttpResponseMessage ByPassLoginToOpenModule([FromBody]JObject sitedetail)
        {
            // note:created new UrlLoginController for bypass login
            dynamic responseData;
            BypassLogin objUser = null;

            try
            {
                string loginId = sitedetail.GetValue("userId").ToString();
                string accountNumber = sitedetail.GetValue("accountNumber").ToString();

                objUser = AIAHTML5.API.Models.Users.ByPassLoginDetail(loginId, accountNumber);
                responseData = JsonConvert.SerializeObject(objUser);

                if (objUser != null)
                {
                    return new HttpResponseMessage { StatusCode = HttpStatusCode.OK, Content = new StringContent(responseData) };
                }
                else
                {
                    return new HttpResponseMessage { StatusCode = HttpStatusCode.BadRequest, Content = new StringContent(AIAConstants.USER_NOT_FOUND) };
                }
            }
            catch (Exception ex)
            {
                // Log exception code goes here  
                return Request.CreateErrorResponse(HttpStatusCode.InternalServerError, ex.Message);
            }
        }

        [HttpPost]
        [Route("api/ManageUserLoginStatus")]
        public HttpResponseMessage ManageUserLoginStatus([FromBody]JObject jsonData)
        {
            string loginStatus = string.Empty;
            try
            {
                int userId = jsonData["userId"].Value<int>();
                string tagName = jsonData["tagName"].Value<string>();
                long SessionId = jsonData["SessionId"].Value<long>();
                bool isSiteUser = jsonData["isSiteUser"].Value<bool>();
                bool isAdmin = jsonData["isAdmin"].Value<bool>();

                loginStatus = AIAHTML5.API.Models.Users.GetUserLoginStatus(userId, tagName, SessionId, isSiteUser, isAdmin);
               
                return new HttpResponseMessage { StatusCode = HttpStatusCode.OK, Content = new StringContent(loginStatus) };
            }
            catch (Exception ex)
            { 
                return Request.CreateErrorResponse(HttpStatusCode.InternalServerError, ex.Message);
            }
        }

        [HttpPost]
        [Route("api/AodAuthentication")]  
        public HttpResponseMessage AodAuthentication([FromBody]JObject jsonData)
        {
            ILog logger = log4net.LogManager.GetLogger((System.Reflection.MethodBase.GetCurrentMethod().DeclaringType));
            int requestStatus = 0;
            try
            {
                string aodpasskey = jsonData["aiapasskey"].Value<string>();
                long SessionId = jsonData["SessionId"].Value<long>();
                string CourseId = jsonData["CourseId"].Value<string>();

                logger.Debug("AOD request parameter: Session =" + SessionId +", aodkeypass="+ aodpasskey + ", CourseId=" + CourseId);

                string aiaConfigKey= ConfigurationManager.AppSettings["aiapasskey"];

                requestStatus = AIAHTML5.API.Models.Users.ValidateAodAthenticationStatus(SessionId, aiaConfigKey, aodpasskey, CourseId);

              switch(requestStatus)
                {
                    case 200:
                        {
                            return new HttpResponseMessage { StatusCode = HttpStatusCode.OK, Content = new StringContent("authentication successful") };
                        }
                    case 401:
                        {
                            return new HttpResponseMessage { StatusCode = HttpStatusCode.Unauthorized, Content = new StringContent("passing key to api is not valid") };
                        }
                    case 404:
                        {
                            return new HttpResponseMessage { StatusCode = HttpStatusCode.NotFound, Content = new StringContent("session has expired or does not exist") };
                        }
                    default:
                        {
                            return new HttpResponseMessage { StatusCode = HttpStatusCode.InternalServerError, Content = new StringContent("server encountered an unexpected error.") };
                        }
                }

            }
            catch (Exception ex)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ex.Message);
            }
        }

        [HttpGet]
        [Route("api/GetAodCoursesList")]
        public HttpResponseMessage GetAodCoursesList([FromUri] int LicenseId)
        {
            try
            {
                DBModel db = new DBModel();
                List<AodCourse> courselist = db.GetSelectedCourseList(LicenseId);

                if (courselist.Count>0)
                    return new HttpResponseMessage { StatusCode = HttpStatusCode.OK, Content = new StringContent(JsonConvert.SerializeObject(courselist)) };
                else
                    return new HttpResponseMessage { StatusCode = HttpStatusCode.OK, Content = new StringContent(AIAConstants.NO_COURSE_FOUND) };

            }
            catch (Exception e)
            {
                return new HttpResponseMessage { StatusCode = HttpStatusCode.InternalServerError, Content = new StringContent(AIAConstants.ERROR_IN_FECTHING_DETAILS) };

            }

        }
        // PUT api/authenticate/5
        public void Put(int id, [FromBody]string value)
        {
        }

        // DELETE api/authenticate/5
        public void Delete(int id)
        {
        }
    }

}