server/AyaNova/biz/DataListColumnViewBiz.cs

@@ -0,0 +1,169 @@
+using System.Threading.Tasks;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using Newtonsoft.Json;
+using AyaNova.Util;
+using AyaNova.Api.ControllerHelpers;
+using AyaNova.Models;
+using AyaNova.DataList;
+
+
+namespace AyaNova.Biz
+{
+
+
+    internal class DataListColumnViewBiz : BizObject
+    {
+
+        internal DataListColumnViewBiz(AyContext dbcontext, long currentUserId, long userTranslationId, AuthorizationRoles UserRoles)
+        {
+            ct = dbcontext;
+            UserId = currentUserId;
+            UserTranslationId = userTranslationId;
+            CurrentUserRoles = UserRoles;
+            BizType = AyaType.DataListColumnView;
+        }
+
+        internal static DataListColumnViewBiz GetBiz(AyContext ct, Microsoft.AspNetCore.Http.HttpContext httpContext = null)
+        {
+            if (httpContext != null)
+                return new DataListColumnViewBiz(ct, UserIdFromContext.Id(httpContext.Items), UserTranslationIdFromContext.Id(httpContext.Items), UserRolesFromContext.Roles(httpContext.Items));
+            else
+                return new DataListColumnViewBiz(ct, 1, ServerBootConfig.AYANOVA_DEFAULT_TRANSLATION_ID, AuthorizationRoles.BizAdminFull);
+        }
+
+
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////
+        //EXISTS 
+        internal async Task<bool> ExistsAsync(long id)
+        {
+            return await ct.DataListColumnView.AnyAsync(z => z.Id == id);
+        }
+
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////
+        //CREATE   
+        // 
+        internal async Task<DataListColumnView> CreateAsync(DataListColumnView newObject)
+        {
+            ValidateAsync(newObject);
+            if (HasErrors)
+                return null;
+            else
+            {
+                //delete the existing one in favor of this one
+                var dbObject = await GetAsync(newObject.UserId, newObject.ListKey, false);
+                if (dbObject != null)
+                {
+                    ct.DataListColumnView.Remove(dbObject);
+                    await ct.SaveChangesAsync();
+                }
+
+                await ct.DataListColumnView.AddAsync(newObject);
+                await ct.SaveChangesAsync();
+
+                return newObject;
+            }
+        }
+
+
+
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////
+        //GET 
+        //
+        //
+        internal async Task<DataListColumnView> GetAsync(long userId, string listKey, bool createDefaultIfNecessary)
+        {
+            var ret = await ct.DataListColumnView.AsNoTracking().SingleOrDefaultAsync(z => z.UserId == userId && z.ListKey == listKey);
+            if (ret == null && createDefaultIfNecessary)
+            {
+                if (!DataListFactory.ListKeyIsValid(listKey))
+                {
+                    throw new System.ArgumentOutOfRangeException($"ListKey '{listKey}' is not a valid DataListKey");
+                }
+                ret = new DataListColumnView();
+                ret.UserId = UserId;
+                ret.ListKey = listKey;
+                var dataList = DataListFactory.GetAyaDataList(listKey);
+                ret.Columns = JsonConvert.SerializeObject(dataList.DefaultColumns);
+                ret.Sort = JsonConvert.SerializeObject(dataList.DefaultSortBy);
+                return await CreateAsync(ret);
+            }
+            return ret;
+        }
+
+
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////
+        //DELETE (RESET)
+        //
+        internal async Task<DataListColumnView> DeleteAsync(long userId, string listKey)
+        {
+            //this is effectively the RESET route handler
+            //so it can be called any time even if there is no default list and it's a-ok
+            //because a new default will be created if needed
+
+            var dbObject = await GetAsync(userId, listKey, false);
+            if (dbObject != null)
+            {
+                ct.DataListColumnView.Remove(dbObject);
+                await ct.SaveChangesAsync();
+                dbObject = await GetAsync(userId, listKey, true);
+            }
+            return dbObject;
+        }
+
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////
+        //VALIDATION
+        //
+
+        //Can save or update?
+        private void ValidateAsync(DataListColumnView inObj)
+        {
+
+            if (inObj.UserId != UserId)
+                AddError(ApiErrorCode.NOT_AUTHORIZED, "UserId", "Only own view can be modified");
+
+            if (string.IsNullOrWhiteSpace(inObj.ListKey))
+                AddError(ApiErrorCode.VALIDATION_REQUIRED, "ListKey");
+
+            if (!DataListFactory.ListKeyIsValid(inObj.ListKey))
+                AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "ListKey", $"ListKey \"{inObj.ListKey}\" DataListKey is not valid");
+
+
+            //Validate Sort JSON
+            try
+            {
+                JsonConvert.DeserializeObject<Dictionary<string, string>>(inObj.Sort);
+            }
+            catch (System.Exception ex)
+            {
+                AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "Sort", "Sort is not valid JSON string, can't convert to valid Dictionary<string, string> SortBy, error: " + ex.Message);
+            }
+
+            //Validate Columns JSON
+            try
+            {
+
+                JsonConvert.DeserializeObject<List<string>>(inObj.Columns);
+            }
+            catch (System.Exception ex)
+            {
+                AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "Sort", "Sort is not valid JSON string, can't convert to valid Dictionary<string, string> SortBy, error: " + ex.Message);
+            }
+
+            return;
+        }
+
+
+
+        /////////////////////////////////////////////////////////////////////
+
+    }//eoc
+
+
+}//eons
+