using System.Linq;
using System.Threading.Tasks;
using System.Collections.Generic;
using Microsoft.EntityFrameworkCore;
using Newtonsoft.Json.Linq;
using AyaNova.Util;
using AyaNova.Api.ControllerHelpers;
using AyaNova.Models;
using AyaNova.PickList;


namespace AyaNova.Biz
{


    internal class PickListBiz : BizObject
    {

        internal PickListBiz(AyContext dbcontext, long currentUserId, long userTranslationId, AuthorizationRoles UserRoles)
        {
            ct = dbcontext;
            UserId = currentUserId;
            UserTranslationId = userTranslationId;
            CurrentUserRoles = UserRoles;
            BizType = AyaType.PickListTemplate;
        }

        internal static PickListBiz GetBiz(AyContext ct, Microsoft.AspNetCore.Http.HttpContext httpContext = null)
        {
            if (httpContext != null)
                return new PickListBiz(ct, UserIdFromContext.Id(httpContext.Items), UserTranslationIdFromContext.Id(httpContext.Items), UserRolesFromContext.Roles(httpContext.Items));
            else
                return new PickListBiz(ct, 1, ServerBootConfig.AYANOVA_DEFAULT_TRANSLATION_ID, AuthorizationRoles.BizAdminFull);
        }




        ////////////////////////////////////////////////////////////////////////////////////////////////
        /// GET

        // //Get one
        // internal async Task<DataListView> GetAsync(long fetchId, bool logTheGetEvent = true)
        // {
        //     //This is simple so nothing more here, but often will be copying to a different output object or some other ops           
        //     var ret = await ct.DataListView.SingleOrDefaultAsync(m => m.Id == fetchId && (m.Public == true || m.UserId == UserId));
        //     if (logTheGetEvent && ret != null)
        //     {
        //         //Log
        //         await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, fetchId, BizType, AyaEvent.Retrieved), ct);
        //     }
        //     return ret;
        // }




        //get picklist 
        internal async Task<List<NameIdActiveItem>> GetPickListAsync(AyaType ayaType, string query, bool inactive, AuthorizationRoles userRoles)
        {

            List<NameIdActiveItem> items = await PickListFetcher.GetResponseAsync(ayaType, query, inactive, ct, userRoles);
            return items;
        }


        //get picklist templates, basically all the object types that support picklists
        internal List<NameIdItem> GetListOfAllPickListTypes(long translationId)
        {
            return PickListFactory.GetListOfAllPickListTypes(translationId);
            // List<NameIdItem> items = await PickListFetcher.GetResponseAsync(ayaType, query, ct, UserId, userRoles);         
            // return items;
        }




        ////////////////////////////////////////////////////////////////////////////////////////////////
        //UPDATE
        //

        //put
        internal async Task<bool> ReplaceAsync(AyaType ayaType, string template)
        {
            throw new System.NotImplementedException();
            // //preserve the owner ID if none was specified
            // if (inObj.UserId == 0)
            //     inObj.UserId = dbObj.UserId;

            // //Replace the db object with the PUT object
            // CopyObject.Copy(inObj, dbObj, "Id");
            // //Set "original" value of concurrency token to input token
            // //this will allow EF to check it out
            // ct.Entry(dbObj).OriginalValues["ConcurrencyToken"] = inObj.ConcurrencyToken;

            // await ValidateAsync(dbObj, false);
            // if (HasErrors)
            //     return false;
            // await ct.SaveChangesAsync();

            // //Log modification and save context
            // await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, dbObj.Id, BizType, AyaEvent.Modified), ct);



            //return true;
        }


        ////////////////////////////////////////////////////////////////////////////////////////////////
        //DELETE
        //
        internal async Task<bool> DeleteAsync(AyaType ayaType)
        {

            //REMOVE ANY RECORD WITH SAME AYATYPE ID
            throw new System.NotImplementedException();

            //Determine if the object can be deleted, do the deletion tentatively
            //Probably also in here deal with tags and associated search text etc

            //FUTURE POSSIBLE NEED
            //ValidateCanDelete(dbObj);

            // if (HasErrors)
            //     return false;
            // ct.DataListView.Remove(dbObj);
            // await ct.SaveChangesAsync();

            // //Delete sibling objects

            // //Event log process delete
            // await EventLogProcessor.DeleteObjectLogAsync(UserId, BizType, dbObj.Id, dbObj.Name, ct);


            // //Delete search index
            // //Search.ProcessDeletedObjectKeywords(dbObj.Id, BizType);


            // return true;
        }

        ////////////////////////////////////////////////////////////////////////////////////////////////
        //VALIDATION
        //

        //Can save or update?
        private async Task ValidateAsync(DataListView inObj, bool isNew)
        {

            // //UserId required
            // if (!isNew)
            // {
            //     if (inObj.UserId == 0)
            //         AddError(ApiErrorCode.VALIDATION_REQUIRED, "UserId");
            // }



            // //Name required
            // if (string.IsNullOrWhiteSpace(inObj.Name))
            //     AddError(ApiErrorCode.VALIDATION_REQUIRED, "Name");

            // //Name must be less than 255 characters
            // if (inObj.Name.Length > 255)
            //     AddError(ApiErrorCode.VALIDATION_LENGTH_EXCEEDED, "Name", "255 max");

            // //If name is otherwise OK, check that name is unique
            // if (!PropertyHasErrors("Name"))
            // {
            //     //Use Any command is efficient way to check existance, it doesn't return the record, just a true or false
            //     if (await ct.DataListView.AnyAsync(m => m.Name == inObj.Name && m.Id != inObj.Id))
            //     {
            //         AddError(ApiErrorCode.VALIDATION_NOT_UNIQUE, "Name");
            //     }
            // }

            // if (string.IsNullOrWhiteSpace(inObj.ListKey))
            //     AddError(ApiErrorCode.VALIDATION_REQUIRED, "ListKey");


            // var DataList = DataListFactory.GetAyaDataList(inObj.ListKey);

            // if (DataList == null)
            // {
            //     AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "ListKey", $"ListKey \"{inObj.ListKey}\" DataListKey is not valid");
            // }



            // if (inObj.ListKey.Length > 255)
            //     AddError(ApiErrorCode.VALIDATION_LENGTH_EXCEEDED, "ListKey", "255 max");

            // //Filter json must parse
            // //this is all automated normally so not going to do too much parsing here
            // //just ensure it's basically there
            // if (!string.IsNullOrWhiteSpace(inObj.ListView))
            // {
            //     try
            //     {
            //         var v = JArray.Parse(inObj.ListView);
            //         for (int i = 0; i < v.Count; i++)
            //         {
            //             var filterItem = v[i];
            //             if (filterItem["fld"] == null)
            //                 AddError(ApiErrorCode.VALIDATION_REQUIRED, "ListView", $"ListView array item {i}, object is missing required \"fld\" property ");
            //             else
            //             {
            //                 var fld = filterItem["fld"].Value<string>();
            //                 if (string.IsNullOrWhiteSpace(fld))
            //                     AddError(ApiErrorCode.VALIDATION_REQUIRED, "ListView", $"ListView array item {i}, \"fld\" property is empty and required");

            //                 //validate the field name if we can
            //                 if (DataList != null)
            //                 {

            //                     var TheField = DataList.FieldDefinitions.SingleOrDefault(x => x.FieldKey.ToLowerInvariant() == fld);

            //                     if (TheField == null)
            //                     {
            //                         AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "ListView", $"ListView array item {i}, fld property value \"{fld}\" is not a valid value for ListKey specified");
            //                     }

            //                 }
            //             }
            //             //This is the old filter validation code but at this point only going to validate that the fields are present and valid as the bare minimum
            //             // if (filterItem["op"] == null)
            //             //     AddError(ApiErrorCode.VALIDATION_REQUIRED, "Filter", $"Filter array item {i}, object is missing required \"op\" property ");
            //             // else
            //             // {
            //             //     var opType = filterItem["op"].Value<string>();
            //             //     if (!DataListFilterComparisonOperator.Operators.Contains(opType))
            //             //         AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "Filter", $"Filter array item {i}, \"op\" property value of \"{opType}\" is not a valid FilterComparisonOperator type");
            //             // }

            //             // if (filterItem["value"] == null)
            //             //     AddError(ApiErrorCode.VALIDATION_REQUIRED, "Filter", $"Filter array item {i}, object is missing or is empty the required \"value\" property ");
            //             // else
            //             // {
            //             //     //check if the value is present, not what it is exactly, just that it's present
            //             //     //value also could contain relative date tokens, not that it checks them anyway but just noting it here
            //             //     if (filterItem["value"].Type == JTokenType.String && string.IsNullOrWhiteSpace(filterItem["value"].Value<string>()))
            //             //         AddError(ApiErrorCode.VALIDATION_REQUIRED, "Filter", $"Filter array item {i}, object is missing or is empty the required \"value\" property ");

            //             //     if (filterItem["value"].Type == JTokenType.Array && filterItem["value"].Count() == 0)
            //             //         AddError(ApiErrorCode.VALIDATION_REQUIRED, "Filter", $"Filter array item {i}, object is missing or is empty the required \"value\" property ARRAY ");
            //             // }


            //             //NOTE: value of nothing, null or empty is a valid value so no checking for it here
            //         }
            //     }
            //     catch (Newtonsoft.Json.JsonReaderException ex)
            //     {
            //         AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "ListView", "ListView is not valid JSON string: " + ex.Message);

            //     }
            // }


            // // //VALIDATE SORT
            // // //Filter json must parse
            // // if (!string.IsNullOrWhiteSpace(inObj.Sort))
            // // {
            // //     try
            // //     {
            // //         var v = JArray.Parse(inObj.Sort);
            // //         for (int i = 0; i < v.Count; i++)
            // //         {
            // //             var sortItem = v[i];
            // //             if (sortItem["fld"] == null)
            // //                 AddError(ApiErrorCode.VALIDATION_REQUIRED, "Sort", $"Sort array item {i}, object is missing required \"fld\" property ");
            // //             else
            // //             {
            // //                 var fld = sortItem["fld"].Value<string>();
            // //                 if (string.IsNullOrWhiteSpace(fld))
            // //                     AddError(ApiErrorCode.VALIDATION_REQUIRED, "Sort", $"Sort array item {i}, \"fld\" property is empty and required");

            // //                 //validate the field name if we can
            // //                 if (DataList != null)
            // //                 {

            // //                     if (!DataList.FieldDefinitions.Exists(x => x.FieldKey.ToLowerInvariant() == fld && x.IsFilterable))
            // //                     {
            // //                         AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "Sort", $"Sort array item {i}, fld property value \"{fld}\" is not a valid value for ListKey specified");
            // //                     }

            // //                 }
            // //             }
            // //             if (sortItem["dir"] == null)
            // //                 AddError(ApiErrorCode.VALIDATION_REQUIRED, "Sort", $"Sort array item {i}, object is missing required \"dir\" sort direction property ");
            // //             else
            // //             {
            // //                 var sortDir = sortItem["dir"].Value<string>();
            // //                 if (sortDir != "+" && sortDir != "-")
            // //                     AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "Sort", $"Sort array item {i}, \"dir\" property value of \"{sortDir}\" is not a valid sort direction value, must be \"+\" or \"-\" only");
            // //             }
            // //             //NOTE: value of nothing, null or empty is a valid value so no checking for it here
            // //         }
            // //     }
            // //     catch (Newtonsoft.Json.JsonReaderException ex)
            // //     {
            // //         AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "Sort", "Sort is not valid JSON string: " + ex.Message);

            // //     }
            // // }



            return;
        }




        /////////////////////////////////////////////////////////////////////

    }//eoc


}//eons