using Microsoft.EntityFrameworkCore.Migrations;
using System;

#nullable disable

namespace gehGassi.Persistence.Migrations
{
    public partial class ListingWithNamesEx : Migration
    {
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            var viewName = "tv_ListingsWithNames";
            var sql = @"CREATE FUNCTION tv_ListingsWithNames (@language nvarchar(2), @fallback nvarchar(2)) RETURNS TABLE AS RETURN 
                            SELECT dbo.Listings.*, 
                            C.Name AS CustomerName,
                            BR.Name AS BranchName,
                            Isnull(JSON_VALUE(dbo.Listings.NameLocalized, '$.' + @language), JSON_VALUE(dbo.Listings.NameLocalized, '$.' + @fallback)) AS Name,
                            Isnull(JSON_VALUE(dbo.Listings.DescriptionLocalized, '$.' + @language), JSON_VALUE(dbo.Listings.DescriptionLocalized, '$.' + @fallback)) AS Description,
                            JSON_VALUE(dbo.Listings.ImageLanguageLocalized, '$.' + @language) AS ImageLanguage,
                            JSON_VALUE(dbo.Listings.UrlLanguageLocalized, '$.' + @language) AS UrlLanguage
                            FROM dbo.Listings
                            LEFT JOIN dbo.tv_CustomersWithNames(@language, @fallback) C ON dbo.Listings.CustomerId = C.Id
                            LEFT JOIN dbo.tv_BranchesWithNames(@language, @fallback) BR ON dbo.Listings.BranchId = BR.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)
        {
            var viewName = "tv_ListingsWithNames";
            var sql = @"CREATE FUNCTION tv_ListingsWithNames (@language nvarchar(2), @fallback nvarchar(2)) RETURNS TABLE AS RETURN 
                            SELECT dbo.Listings.*, 
                            C.Name AS CustomerName,
                            BR.Name AS BranchName,
                            Isnull(JSON_VALUE(dbo.Listings.NameLocalized, '$.' + @language), JSON_VALUE(dbo.Listings.NameLocalized, '$.' + @fallback)) AS Name,
                            Isnull(JSON_VALUE(dbo.Listings.DescriptionLocalized, '$.' + @language), JSON_VALUE(dbo.Listings.DescriptionLocalized, '$.' + @fallback)) AS Description,
                            JSON_VALUE(dbo.Listings.ImageLanguageLocalized, '$.' + @language) AS ImageLanguage,
                            JSON_VALUE(dbo.Listings.UrlLanguageLocalized, '$.' + @language) AS UrlLanguage
                            FROM dbo.Listings
                            LEFT JOIN dbo.tv_CustomersWithNames(@language, @fallback) C ON dbo.Listings.CustomerId = C.Id
                            LEFT JOIN dbo.tv_BranchesWithNames(@language, @fallback) BR ON dbo.Listings.BranchId = BR.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");
        }
    }
}