using Microsoft.EntityFrameworkCore.Migrations;
using System;

#nullable disable

namespace gehGassi.Persistence.Migrations
{
    public partial class AdvertisementDiscountAdded : Migration
    {
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.AddColumn<decimal>(
                name: "Discount",
                table: "Advertisements",
                type: "decimal(18,2)",
                nullable: false,
                defaultValue: 0m);

            migrationBuilder.Sql("UPDATE Advertisements SET Discount = 0");

            var viewName = "tv_AdvertisementsWithNames";
            var sql = @"CREATE FUNCTION tv_AdvertisementsWithNames (@language nvarchar(2), @fallback nvarchar(2)) RETURNS TABLE AS RETURN 
                            SELECT dbo.Advertisements.*, 
                            C.Name AS CustomerName,
                            AC.Name AS AdvertisementCategoryName,
                            Isnull(JSON_VALUE(dbo.Advertisements.NameLocalized, '$.' + @language), JSON_VALUE(dbo.Advertisements.NameLocalized, '$.' + @fallback)) AS Name,
                            Isnull(JSON_VALUE(dbo.Advertisements.DescriptionLocalized, '$.' + @language), JSON_VALUE(dbo.Advertisements.DescriptionLocalized, '$.' + @fallback)) AS Description,
                            JSON_VALUE(dbo.Advertisements.ImageLanguageLocalized, '$.' + @language) AS ImageLanguage,
                            JSON_VALUE(dbo.Advertisements.UrlLanguageLocalized, '$.' + @language) AS UrlLanguage
                            FROM dbo.Advertisements
                            LEFT JOIN dbo.tv_CustomersWithNames(@language, @fallback) C ON dbo.Advertisements.CustomerId = C.Id
                            LEFT JOIN dbo.tv_AdvertisementCategoryWithNames(@language, @fallback) AC ON dbo.Advertisements.AdvertisementCategoryId = AC.Id";

            migrationBuilder.Sql($"IF(exists (SELECT 1  FROM sys.objects WHERE Name = '{viewName}')) BEGIN DROP FUNCTION [dbo].[{viewName}] END {Environment.NewLine} GO");
            migrationBuilder.Sql($"{sql} {Environment.NewLine} GO");
        }

        protected override void Down(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.DropColumn(
                name: "Discount",
                table: "Advertisements");

            var viewName = "tv_AdvertisementsWithNames";
            var sql = @"CREATE FUNCTION tv_AdvertisementsWithNames (@language nvarchar(2), @fallback nvarchar(2)) RETURNS TABLE AS RETURN 
                            SELECT dbo.Advertisements.*, 
                            C.Name AS CustomerName,
                            AC.Name AS AdvertisementCategoryName,
                            Isnull(JSON_VALUE(dbo.Advertisements.NameLocalized, '$.' + @language), JSON_VALUE(dbo.Advertisements.NameLocalized, '$.' + @fallback)) AS Name,
                            Isnull(JSON_VALUE(dbo.Advertisements.DescriptionLocalized, '$.' + @language), JSON_VALUE(dbo.Advertisements.DescriptionLocalized, '$.' + @fallback)) AS Description,
                            JSON_VALUE(dbo.Advertisements.ImageLanguageLocalized, '$.' + @language) AS ImageLanguage,
                            JSON_VALUE(dbo.Advertisements.UrlLanguageLocalized, '$.' + @language) AS UrlLanguage
                            FROM dbo.Advertisements
                            LEFT JOIN dbo.tv_CustomersWithNames(@language, @fallback) C ON dbo.Advertisements.CustomerId = C.Id
                            LEFT JOIN dbo.tv_AdvertisementCategoryWithNames(@language, @fallback) AC ON dbo.Advertisements.AdvertisementCategoryId = AC.Id";

            migrationBuilder.Sql($"IF(exists (SELECT 1  FROM sys.objects WHERE Name = '{viewName}')) BEGIN DROP FUNCTION [dbo].[{viewName}] END {Environment.NewLine} GO");
            migrationBuilder.Sql($"{sql} {Environment.NewLine} GO");
        }
    }
}