using System;
using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace gehGassi.Persistence.Migrations
{
    /// <inheritdoc />
    public partial class VoucherCampaignPrefixAdded : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.AddColumn<string>(
                name: "Prefix",
                table: "VoucherCampaigns",
                type: "nvarchar(4)",
                maxLength: 4,
                nullable: false,
                defaultValue: "");

            var viewName = "tv_VoucherCampignsWithNames";
            var sql = @"CREATE FUNCTION tv_VoucherCampignsWithNames (@language nvarchar(2), @fallback nvarchar(2)) RETURNS TABLE AS RETURN 
                            SELECT dbo.VoucherCampaigns.*, 
                            C.Name AS CustomerName,
                            Isnull(JSON_VALUE(dbo.VoucherCampaigns.NameLocalized, '$.' + @language), JSON_VALUE(dbo.VoucherCampaigns.NameLocalized, '$.' + @fallback)) AS Name,
                            JSON_VALUE(dbo.VoucherCampaigns.ImageLanguageLocalized, '$.' + @language) AS ImageLanguage,
                            JSON_VALUE(dbo.VoucherCampaigns.UrlLanguageLocalized, '$.' + @language) AS UrlLanguage
                            FROM dbo.VoucherCampaigns
                            LEFT JOIN dbo.tv_CustomersWithNames(@language, @fallback) C ON dbo.VoucherCampaigns.CustomerId = C.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");
		}

        /// <inheritdoc />
        protected override void Down(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.DropColumn(
                name: "Prefix",
                table: "VoucherCampaigns");

            var viewName = "tv_VoucherCampignsWithNames";
            var sql = @"CREATE FUNCTION tv_VoucherCampignsWithNames (@language nvarchar(2), @fallback nvarchar(2)) RETURNS TABLE AS RETURN 
                            SELECT dbo.VoucherCampaigns.*, 
                            C.Name AS CustomerName,
                            Isnull(JSON_VALUE(dbo.VoucherCampaigns.NameLocalized, '$.' + @language), JSON_VALUE(dbo.VoucherCampaigns.NameLocalized, '$.' + @fallback)) AS Name,
                            JSON_VALUE(dbo.VoucherCampaigns.ImageLanguageLocalized, '$.' + @language) AS ImageLanguage,
                            JSON_VALUE(dbo.VoucherCampaigns.UrlLanguageLocalized, '$.' + @language) AS UrlLanguage
                            FROM dbo.VoucherCampaigns
                            LEFT JOIN dbo.tv_CustomersWithNames(@language, @fallback) C ON dbo.VoucherCampaigns.CustomerId = C.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");
		}
    }
}