using System;
using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace Microsoft.SelfService.Portal.Core.API.Migrations
{
    /// <inheritdoc />
    public partial class AddTemplateVersions : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.AddColumn<Guid>(
                name: "DeploymentRuleId",
                table: "DeploymentBatches",
                type: "uniqueidentifier",
                nullable: true)
                .Annotation("Relational:ColumnOrder", 3);

            migrationBuilder.CreateTable(
                name: "TemplateVersions",
                columns: table => new
                {
                    Id = table.Column<Guid>(type: "uniqueidentifier", nullable: false, defaultValueSql: "NEWID()"),
                    TemplateId = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
                    Version = table.Column<string>(type: "nvarchar(64)", maxLength: 64, nullable: false),
                    JsonData = table.Column<string>(type: "nvarchar(max)", nullable: false),
                    JsonHash = table.Column<string>(type: "nvarchar(64)", maxLength: 64, nullable: false),
                    SchemaVersion = table.Column<string>(type: "nvarchar(32)", maxLength: 32, nullable: false),
                    IsPublished = table.Column<bool>(type: "bit", nullable: false),
                    PublishedAt = table.Column<DateTime>(type: "datetime2", nullable: true),
                    PublishedBy = table.Column<string>(type: "nvarchar(max)", nullable: true),
                    Modified = table.Column<DateTime>(type: "datetime2", nullable: false, defaultValueSql: "GETDATE()"),
                    ModifiedBy = table.Column<string>(type: "nvarchar(max)", nullable: false),
                    Created = table.Column<DateTime>(type: "datetime2", nullable: false, defaultValueSql: "GETDATE()"),
                    CreatedBy = table.Column<string>(type: "nvarchar(max)", nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_TemplateVersions", x => x.Id);
                    table.CheckConstraint("CK_TemplateVersions_JsonData_IsJson", "ISJSON([JsonData]) = 1");
                    table.ForeignKey(
                        name: "FK_TemplateVersions_Templates_TemplateId",
                        column: x => x.TemplateId,
                        principalTable: "Templates",
                        principalColumn: "Id",
                        onDelete: ReferentialAction.Cascade);
                });

            migrationBuilder.Sql("""
                INSERT INTO [TemplateVersions]
                    ([Id], [TemplateId], [Version], [JsonData], [JsonHash], [SchemaVersion], [IsPublished], [PublishedAt], [PublishedBy], [Modified], [ModifiedBy], [Created], [CreatedBy])
                SELECT
                    NEWID(),
                    [Id],
                    CASE
                        WHEN [Version] IS NULL OR LTRIM(RTRIM([Version])) = '' THEN '1.0.0'
                        ELSE [Version]
                    END,
                    CASE
                        WHEN ISJSON([JSONData]) = 1 THEN [JSONData]
                        ELSE '{}'
                    END,
                    CONVERT(varchar(64), HASHBYTES('SHA2_256', CONVERT(varbinary(max), CASE WHEN ISJSON([JSONData]) = 1 THEN [JSONData] ELSE '{}' END)), 2),
                    '1.0',
                    1,
                    SYSUTCDATETIME(),
                    [CreatedBy],
                    [Modified],
                    [ModifiedBy],
                    [Created],
                    [CreatedBy]
                FROM [Templates]
                WHERE NOT EXISTS (
                    SELECT 1
                    FROM [TemplateVersions]
                    WHERE [TemplateVersions].[TemplateId] = [Templates].[Id]
                );
                """);

            migrationBuilder.CreateIndex(
                name: "IX_DeploymentBatches_DeploymentRuleId",
                table: "DeploymentBatches",
                column: "DeploymentRuleId");

            migrationBuilder.CreateIndex(
                name: "IX_TemplateVersions_TemplateId",
                table: "TemplateVersions",
                column: "TemplateId",
                unique: true,
                filter: "[IsPublished] = 1");

            migrationBuilder.CreateIndex(
                name: "IX_TemplateVersions_TemplateId_Version",
                table: "TemplateVersions",
                columns: new[] { "TemplateId", "Version" },
                unique: true);

            migrationBuilder.AddForeignKey(
                name: "FK_DeploymentBatches_DeploymentRules_DeploymentRuleId",
                table: "DeploymentBatches",
                column: "DeploymentRuleId",
                principalTable: "DeploymentRules",
                principalColumn: "Id",
                onDelete: ReferentialAction.SetNull);
        }

        /// <inheritdoc />
        protected override void Down(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.DropForeignKey(
                name: "FK_DeploymentBatches_DeploymentRules_DeploymentRuleId",
                table: "DeploymentBatches");

            migrationBuilder.DropTable(
                name: "TemplateVersions");

            migrationBuilder.DropIndex(
                name: "IX_DeploymentBatches_DeploymentRuleId",
                table: "DeploymentBatches");

            migrationBuilder.DropColumn(
                name: "DeploymentRuleId",
                table: "DeploymentBatches");
        }
    }
}