<?php

use think\migration\Migrator;

class SystemMcpLog extends Migrator
{
    /**
     * MCP调用日志表.
     *
     * 仅 create_time（写入后不变），无 update_time / delete_time。
     */
    public function change()
    {
        $table = $this->table('system_mcp_log')
            ->setComment('MCP调用日志表')
            ->addColumn('key_id', 'biginteger', ['limit' => 11, 'null' => true, 'signed' => false, 'comment' => '密钥ID'])
            ->addColumn('node', 'char', ['limit' => 100, 'null' => true, 'comment' => '调用节点'])
            ->addColumn('arguments', 'text', ['null' => true, 'comment' => '参数摘要JSON'])
            ->addColumn('is_success', 'integer', ['limit' => 1, 'null' => true, 'default' => 1, 'comment' => '是否成功:0=失败,1=成功'])
            ->addColumn('cost_ms', 'integer', ['limit' => 11, 'null' => true, 'default' => 0, 'comment' => '耗时毫秒'])
            ->addColumn('create_time', 'integer', ['limit' => 11, 'null' => true, 'default' => 0, 'signed' => false, 'comment' => '创建时间'])
            ->addIndex(['key_id'], ['name' => 'key_id'])
            ->create();
    }
}