<?php

namespace App\Database\Migrations;

use CodeIgniter\Database\Migration;

class CreateReceiptItems extends Migration
{
    public function up(): void
    {
        $this->forge->addField([
            'id'                    => ['type' => 'INT', 'constraint' => 11, 'unsigned' => true, 'auto_increment' => true],
            'receipt_id'            => ['type' => 'INT', 'constraint' => 11, 'unsigned' => true],
            'name'                  => ['type' => 'VARCHAR', 'constraint' => 255],
            'qty'                   => ['type' => 'DECIMAL', 'constraint' => '10,3', 'null' => true],
            'amount'                => ['type' => 'DECIMAL', 'constraint' => '12,2'],
            'suggested_category_id' => ['type' => 'INT', 'constraint' => 11, 'unsigned' => true, 'null' => true],
            'chosen_category_id'    => ['type' => 'INT', 'constraint' => 11, 'unsigned' => true, 'null' => true],
            'created_at'            => ['type' => 'DATETIME', 'null' => true],
            'updated_at'            => ['type' => 'DATETIME', 'null' => true],
        ]);
        $this->forge->addKey('id', true);
        $this->forge->addKey('receipt_id');
        // Kasacja paragonu kasuje jego pozycje.
        $this->forge->addForeignKey('receipt_id', 'receipts', 'id', 'CASCADE', 'CASCADE');
        // Kasacja kategorii zeruje podpowiedz/wybor (nie blokuje).
        $this->forge->addForeignKey('suggested_category_id', 'categories', 'id', 'SET NULL', 'SET NULL');
        $this->forge->addForeignKey('chosen_category_id', 'categories', 'id', 'SET NULL', 'SET NULL');
        $this->forge->createTable('receipt_items', true, ['ENGINE' => 'InnoDB']);
    }

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