<?php

namespace App\Database\Migrations;

use CodeIgniter\Database\Migration;

class CreateOperations extends Migration
{
    public function up(): void
    {
        $this->forge->addField([
            'id'          => ['type' => 'INT', 'constraint' => 11, 'unsigned' => true, 'auto_increment' => true],
            'date'        => ['type' => 'DATE'],
            'amount'      => ['type' => 'DECIMAL', 'constraint' => '12,2'],
            'type'        => ['type' => 'ENUM', 'constraint' => ['income', 'expense']],
            'category_id' => ['type' => 'INT', 'constraint' => 11, 'unsigned' => true, 'null' => true],
            'description' => ['type' => 'VARCHAR', 'constraint' => 255, 'null' => true],
            'created_at'  => ['type' => 'DATETIME', 'null' => true],
            'updated_at'  => ['type' => 'DATETIME', 'null' => true],
        ]);
        $this->forge->addKey('id', true);
        $this->forge->addKey('date');
        $this->forge->addKey('category_id');
        $this->forge->addKey('type');
        // Usuniecie kategorii -> operacje dostaja category_id = NULL
        $this->forge->addForeignKey('category_id', 'categories', 'id', 'CASCADE', 'SET NULL');
        $this->forge->createTable('operations', true, ['ENGINE' => 'InnoDB']);
    }

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