<?php

use think\migration\Migrator;

class SystemHost extends Migrator
{
    /**
     * Change Method.
     *
     * Write your reversible migrations using this method.
     *
     * More information on writing migrations is available here:
     * http://docs.phinx.org/en/latest/migrations.html#the-abstractmigration-class
     *
     * The following commands can be used in this method and Phinx will
     * automatically reverse them when rolling back:
     *
     *    createTable
     *    renameTable
     *    addColumn
     *    renameColumn
     *    addIndex
     *    addForeignKey
     *
     * Remember to call "create()" or "update()" and NOT "save()" when working
     * with the Table class.
     */
    public function change()
    {
        $table = $this->table('system_host')
            ->setComment('系统节点表')
            ->addColumn('node_id', 'string', ['limit' => '100', 'null' => '0', 'comment' => '节点ID {text}'])
            ->addColumn('ip_address', 'string', ['limit' => '45', 'null' => '1', 'comment' => 'IP地址 {text}'])
            ->addColumn('status', 'integer', ['limit' => '1', 'null' => '0', 'default' => '1', 'comment' => '状态 {switch} (0:离线,1:在线)'])
            ->addColumn('last_heartbeat_at', 'datetime', ['null' => '1', 'comment' => '最后心跳时间 {date}'])
            ->addColumn('os_info', 'string', ['limit' => '255', 'null' => '1', 'comment' => '系统信息 {text}'])
            ->addColumn('php_version', 'string', ['limit' => '50', 'null' => '1', 'comment' => 'PHP版本 {text}'])
            ->addColumn('cpu_load', 'string', ['limit' => '50', 'null' => '1', 'comment' => 'CPU负载 {text}'])
            ->addColumn('memory_usage', 'biginteger', ['null' => '1', 'comment' => '内存占用(byte) {text}'])
            ->addColumn('disk_free', 'biginteger', ['null' => '1', 'comment' => '磁盘可用空间(byte) {text}'])
            ->addColumn('disk_total', 'biginteger', ['null' => '1', 'comment' => '磁盘总空间(byte) {text}'])
            ->addColumn('create_time', 'integer', ['null' => '1', 'signed' => '0', 'comment' => '首次运行时间 {date}'])
            ->addColumn('update_time', 'integer', ['null' => '1', 'signed' => '0', 'comment' => '更新时间 {date}'])
            ->addIndex('node_id', ['unique' => true])
            ->create();
    }
}