using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace AmtScanner.Api.Migrations
{
    /// <inheritdoc />
    public partial class AddDeviceWindowsCredentials : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            // 使用原生 SQL 安全删除外键和索引（如果存在）
            migrationBuilder.Sql(@"
                SET @fk_exists = (SELECT COUNT(*) FROM information_schema.TABLE_CONSTRAINTS 
                    WHERE CONSTRAINT_SCHEMA = DATABASE() 
                    AND TABLE_NAME = 'RemoteAccessTokens' 
                    AND CONSTRAINT_NAME = 'FK_RemoteAccessTokens_WindowsCredentials_WindowsCredentialId');
                SET @sql = IF(@fk_exists > 0, 
                    'ALTER TABLE RemoteAccessTokens DROP FOREIGN KEY FK_RemoteAccessTokens_WindowsCredentials_WindowsCredentialId', 
                    'SELECT 1');
                PREPARE stmt FROM @sql;
                EXECUTE stmt;
                DEALLOCATE PREPARE stmt;
            ");

            migrationBuilder.Sql(@"
                SET @idx_exists = (SELECT COUNT(*) FROM information_schema.STATISTICS 
                    WHERE TABLE_SCHEMA = DATABASE() 
                    AND TABLE_NAME = 'RemoteAccessTokens' 
                    AND INDEX_NAME = 'IX_RemoteAccessTokens_WindowsCredentialId');
                SET @sql = IF(@idx_exists > 0, 
                    'ALTER TABLE RemoteAccessTokens DROP INDEX IX_RemoteAccessTokens_WindowsCredentialId', 
                    'SELECT 1');
                PREPARE stmt FROM @sql;
                EXECUTE stmt;
                DEALLOCATE PREPARE stmt;
            ");

            migrationBuilder.Sql(@"
                SET @col_exists = (SELECT COUNT(*) FROM information_schema.COLUMNS 
                    WHERE TABLE_SCHEMA = DATABASE() 
                    AND TABLE_NAME = 'RemoteAccessTokens' 
                    AND COLUMN_NAME = 'WindowsCredentialId');
                SET @sql = IF(@col_exists > 0, 
                    'ALTER TABLE RemoteAccessTokens DROP COLUMN WindowsCredentialId', 
                    'SELECT 1');
                PREPARE stmt FROM @sql;
                EXECUTE stmt;
                DEALLOCATE PREPARE stmt;
            ");

            migrationBuilder.AddColumn<string>(
                name: "WindowsPassword",
                table: "AmtDevices",
                type: "longtext",
                nullable: true)
                .Annotation("MySql:CharSet", "utf8mb4");

            migrationBuilder.AddColumn<string>(
                name: "WindowsUsername",
                table: "AmtDevices",
                type: "longtext",
                nullable: true)
                .Annotation("MySql:CharSet", "utf8mb4");
        }

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

            migrationBuilder.DropColumn(
                name: "WindowsUsername",
                table: "AmtDevices");

            migrationBuilder.AddColumn<long>(
                name: "WindowsCredentialId",
                table: "RemoteAccessTokens",
                type: "bigint",
                nullable: true);

            migrationBuilder.CreateIndex(
                name: "IX_RemoteAccessTokens_WindowsCredentialId",
                table: "RemoteAccessTokens",
                column: "WindowsCredentialId");

            migrationBuilder.AddForeignKey(
                name: "FK_RemoteAccessTokens_WindowsCredentials_WindowsCredentialId",
                table: "RemoteAccessTokens",
                column: "WindowsCredentialId",
                principalTable: "WindowsCredentials",
                principalColumn: "Id",
                onDelete: ReferentialAction.SetNull);
        }
    }
}