<?php

namespace App\Database\Migrations;

use CodeIgniter\Database\Migration;

/**
 * Migration untuk membuat tabel login_attempts
 * 
 * Tabel ini digunakan untuk:
 * - Mencatat semua percobaan login (berhasil dan gagal)
 * - Monitoring aktivitas mencurigakan
 * - Implementasi account lockout
 * - Audit trail untuk keamanan
 */
class CreateLoginAttemptsTable extends Migration
{
    public function up()
    {
        $this->forge->addField([
            'id' => [
                'type'           => 'INT',
                'constraint'     => 11,
                'unsigned'       => true,
                'auto_increment' => true,
            ],
            'ip_address' => [
                'type'       => 'VARCHAR',
                'constraint' => '45',
                'comment'    => 'IP address dari percobaan login',
            ],
            'username' => [
                'type'       => 'VARCHAR',
                'constraint' => '100',
                'null'       => true,
                'comment'    => 'Username yang dicoba (null jika user tidak ditemukan)',
            ],
            'user_id' => [
                'type'       => 'INT',
                'constraint' => 11,
                'unsigned'   => true,
                'null'       => true,
                'comment'    => 'ID user jika login berhasil',
            ],
            'success' => [
                'type'       => 'TINYINT',
                'constraint' => 1,
                'default'    => 0,
                'comment'    => '1 = berhasil, 0 = gagal',
            ],
            'user_agent' => [
                'type'       => 'TEXT',
                'null'       => true,
                'comment'    => 'User agent browser',
            ],
            'created_at' => [
                'type' => 'DATETIME',
                'null' => true,
            ],
        ]);

        $this->forge->addKey('id', true);
        $this->forge->addKey('ip_address');
        $this->forge->addKey('username');
        $this->forge->addKey('user_id');
        $this->forge->addKey('created_at');
        
        // Index composite untuk query cepat berdasarkan IP dan waktu
        $this->forge->addKey(['ip_address', 'created_at']);
        
        // Index composite untuk query berdasarkan username dan waktu
        $this->forge->addKey(['username', 'created_at']);

        $this->forge->createTable('login_attempts', true);
    }

    public function down()
    {
        $this->forge->dropTable('login_attempts', true);
    }
}